Response

Distribution by Scientific Domains
Distribution within Medical Sciences

Kinds of Response

  • NO-mediat response
  • aberrant response
  • abiotic stress response
  • abnormal immune response
  • abnormal response
  • acceleration response
  • acclimation response
  • accommodative response
  • accurate response
  • ach response
  • acr70 response
  • acth response
  • activation response
  • active response
  • acute inflammatory response
  • acute phase response
  • acute response
  • acute-phase response
  • adaptative response
  • adaptive immune response
  • adaptive response
  • additive response
  • adequate response
  • adrenoceptor-mediated response
  • adverse response
  • affective response
  • afferent response
  • aggregation response
  • aggregative response
  • aggressive response
  • agonist response
  • airway response
  • allergic airway response
  • allergic immune response
  • allergic inflammatory response
  • allergic response
  • allocation response
  • allogeneic response
  • alloimmune response
  • altered response
  • ambulance response
  • amygdala response
  • anabolic response
  • analgesic response
  • anamnestic response
  • angiogenic response
  • anti-inflammatory response
  • anti-tumor immune response
  • anti-tumor response
  • anti-tumour response
  • antibacterial response
  • antibody response
  • anticoagulant response
  • antidepressant response
  • antidepressant treatment response
  • antigen-specific immune response
  • antigen-specific t cell response
  • antioxidant response
  • antitumor immune response
  • antitumor response
  • antiviral immune response
  • antiviral response
  • anxiety response
  • apoptotic response
  • approach response
  • appropriate response
  • arousal response
  • arterial buffer response
  • arterial response
  • arteriolar response
  • asthmatic response
  • astrocyte response
  • asymmetric response
  • atp response
  • attenuated response
  • audience response
  • auditory brainstem response
  • auditory evoked response
  • auditory response
  • australia response
  • author response
  • autoantibody response
  • autoimmune response
  • autonomic response
  • autoreactive t-cell response
  • average response
  • avoidance response
  • b cell response
  • b response
  • b-cell response
  • bacterial response
  • baroreflex response
  • basal defence response
  • baseline response
  • beetle response
  • behavioral response
  • behavioural response
  • beneficial response
  • best response
  • binary response
  • biochemical response
  • biologic response
  • biological response
  • biomarker response
  • biomass response
  • biotic response
  • biphasic response
  • bird response
  • blastogenic response
  • blood flow response
  • blood pressure response
  • blunted response
  • bold response
  • bone response
  • bone tissue response
  • bradycardic response
  • brain response
  • brainstem auditory evoked response
  • brainstem response
  • bronchoconstrictor response
  • buffer response
  • ca2+ response
  • calcium response
  • camp response
  • cardiac response
  • cardiovascular response
  • care response
  • caregiver response
  • catchment response
  • cd4+ t cell response
  • cd4+ t-cell response
  • cd8 response
  • cd8 t cell response
  • cd8+ t cell response
  • cd8+ t-cell response
  • cell death response
  • cell immune response
  • cell proliferative response
  • cell response
  • cell-dependent immune response
  • cell-mediated immune response
  • cellular immune response
  • cellular inflammatory response
  • cellular response
  • cellular stress response
  • cerebrovascular response
  • channel response
  • characteristic response
  • checkpoint response
  • chemical response
  • chemotactic response
  • chemotherapy response
  • children response
  • chronic inflammatory response
  • chronotropic response
  • ciliary response
  • clear response
  • climate response
  • climatic response
  • clinical response
  • cmv-specific t-cell response
  • co2 response
  • cognitive response
  • collective response
  • color response
  • common response
  • community response
  • company response
  • comparing response
  • compensatory response
  • competitive response
  • complete clinical response
  • complete cytogenetic response
  • complete pathologic response
  • complete pathological response
  • complete response
  • complete tumour response
  • complex response
  • concentration response
  • conditioned response
  • conductance response
  • consistent response
  • constrictor response
  • constructed response
  • consumer response
  • contact hypersensitivity response
  • continuous response
  • contractile response
  • contrasting response
  • control response
  • coordinated response
  • coping response
  • corporate response
  • correct response
  • correlated response
  • cortical response
  • corticosterone response
  • cortisol response
  • count response
  • counterregulatory response
  • craving response
  • creative response
  • creep response
  • critical response
  • crop response
  • ctl response
  • cultural response
  • current response
  • cutaneous response
  • cytogenetic response
  • cytokine response
  • cytotoxic response
  • cytotoxic t cell response
  • cytotoxic t lymphocyte response
  • damage response
  • dc response
  • death response
  • decreased response
  • defence response
  • defense response
  • defensive response
  • delayed response
  • delayed-type hypersensitivity response
  • demand response
  • demographic response
  • density response
  • dependent response
  • depressor response
  • desired response
  • detectable response
  • developmental response
  • dielectric response
  • different response
  • differential response
  • differing response
  • dilator response
  • diminished response
  • direct response
  • disaster response
  • disease response
  • displacement response
  • distinct response
  • distributed response
  • divergent response
  • diverse response
  • dna damage response
  • dominant response
  • dopamine response
  • dose response
  • dose-dependent response
  • dramatic response
  • drought response
  • drug response
  • dth response
  • durable response
  • dynamic response
  • dynamical response
  • dysregulated immune response
  • e response
  • eag response
  • early growth response
  • early inflammatory response
  • early response
  • early virological response
  • earthquake response
  • ecological response
  • ecophysiological response
  • ecosystem response
  • effective immune response
  • effective response
  • effector response
  • effector t cell response
  • elastic response
  • electrical response
  • electrochemical response
  • electrode response
  • electromagnetic response
  • electrophysiological response
  • emergency response
  • emg response
  • emotional response
  • encapsulation response
  • end-of-treatment response
  • endocrine response
  • endothelial cell response
  • endothelial response
  • enhanced immune response
  • enhanced response
  • envelope stress response
  • environmental response
  • environmental stress response
  • enzyme response
  • eosinophil response
  • epithelial response
  • equilibrium response
  • erectile response
  • erythemal response
  • erythroid response
  • escape response
  • ethical response
  • ethylene response
  • evoked response
  • evolutionary response
  • excellent clinical response
  • excellent response
  • exchange response
  • excitatory response
  • expected response
  • experimental response
  • expression response
  • farmer response
  • fast response
  • faster response
  • favorable response
  • favourable response
  • fear response
  • febrile response
  • feeding response
  • female response
  • fetal inflammatory response
  • fetal response
  • fibrotic response
  • field response
  • fire response
  • firm response
  • first response
  • fish response
  • fistula response
  • flare response
  • flexible response
  • flight response
  • flow response
  • fluorescence response
  • fluorescent response
  • fmri response
  • force response
  • forearm vascular response
  • forest response
  • free text response
  • frequency response
  • frequent response
  • full response
  • function response
  • functional group response
  • functional response
  • gas exchange response
  • gene expression response
  • general response
  • general stress response
  • genetic response
  • genioglossu response
  • germination response
  • gh response
  • glial response
  • global response
  • glucose response
  • glycemic response
  • good clinical response
  • good immune response
  • good response
  • government response
  • graded response
  • granulomatous response
  • gravitropic response
  • greater response
  • greatest response
  • group response
  • growth response
  • haematological response
  • haemodynamic response
  • half-maximal response
  • hcv-specific t-cell response
  • headache response
  • healing response
  • health response
  • heart rate response
  • heat response
  • heat shock response
  • heat-shock response
  • hedonic response
  • helper response
  • hematologic response
  • hematological response
  • hemodynamic response
  • hepatic arterial buffer response
  • heterogeneous response
  • high response
  • histologic response
  • histological response
  • histopathological response
  • homeostatic response
  • hormonal response
  • hormone response
  • host cell response
  • host defence response
  • host defense response
  • host immune response
  • host inflammatory response
  • host innate immune response
  • host response
  • household response
  • hpa response
  • hr response
  • human immune response
  • human response
  • humanitarian response
  • humoral immune response
  • humoral response
  • hydrologic response
  • hyperaemic response
  • hypersensitive response
  • hypersensitivity response
  • hypertensive response
  • hypertrophic response
  • hypotensive response
  • hypothermic response
  • hypoxia response
  • hypoxic response
  • hypoxic ventilatory response
  • i ifn response
  • i response
  • ifn response
  • iga antibody response
  • iga response
  • ige response
  • igg antibody response
  • igg response
  • igg subclass response
  • igg1 response
  • igm response
  • ii functional response
  • il-10 response
  • il-4 response
  • il-8 response
  • immediate response
  • immune response
  • immunity response
  • immunologic response
  • immunological response
  • impact response
  • impaired response
  • impedance response
  • important response
  • improved response
  • impulse response
  • inappropriate immune response
  • incomplete response
  • incorrect response
  • increased response
  • index response
  • indirect response
  • individual response
  • individualistic response
  • induced response
  • induction response
  • industry response
  • inelastic response
  • infant response
  • inflammation response
  • inflammatory immune response
  • inflammatory response
  • inhibitory response
  • initial response
  • injury response
  • innate immune response
  • innate inflammatory response
  • innate response
  • inotropic response
  • insect response
  • institutional response
  • insulin response
  • integrate response
  • interactive voice response
  • interferon response
  • internal response
  • international response
  • intestinal immune response
  • intestinal inflammatory response
  • intracellular response
  • isotopic response
  • item response
  • labour supply response
  • lake response
  • large response
  • larger response
  • late nasal response
  • late response
  • latency response
  • latter response
  • learner response
  • legal response
  • legislative response
  • leukocyte response
  • level response
  • lh response
  • light response
  • likely response
  • limited response
  • linear response
  • lipolytic response
  • little response
  • local immune response
  • local inflammatory response
  • local response
  • locomotor response
  • long-term response
  • longitudinal response
  • low response
  • lower response
  • lung response
  • lymphocyte proliferative response
  • lymphocyte response
  • lymphoproliferative response
  • macrophage response
  • macroscopic response
  • magnetic response
  • major cytogenetic response
  • major molecular response
  • major response
  • management response
  • managerial response
  • many response
  • marked response
  • market response
  • mast cell response
  • material response
  • maternal immune response
  • maternal response
  • maximal response
  • maximum response
  • mean response
  • measurable response
  • measured response
  • mechanical response
  • mediated response
  • medical response
  • memory response
  • metabolic response
  • microglial response
  • microvascular response
  • migratory response
  • minimal response
  • minor response
  • mitochondrial response
  • mitogenic response
  • mitotic response
  • mixed response
  • model response
  • moderate response
  • molecular response
  • monitoring response
  • monocyte response
  • morphological response
  • mother response
  • motility response
  • motor response
  • mrna response
  • mucosal immune response
  • mucosal inflammatory response
  • mucosal response
  • multiple response
  • muscle response
  • myogenic response
  • nasal response
  • national response
  • natriuretic response
  • natural immune response
  • natural response
  • negative response
  • nerve response
  • nervous system response
  • neural response
  • neuroendocrine response
  • neuronal response
  • neutrophil response
  • new response
  • nk cell response
  • nlo response
  • nociceptive response
  • non-linear response
  • non-specific immune response
  • non-specific response
  • nonlinear optical response
  • nonlinear response
  • nonlinear seismic response
  • normal immune response
  • normal response
  • numerical response
  • nurse response
  • o3 response
  • objective clinical response
  • objective response
  • observed response
  • of response
  • official response
  • olfactory response
  • one response
  • opposite response
  • optical response
  • optimal response
  • ordinal response
  • organism response
  • organismal response
  • organizational response
  • orienting response
  • oscillatory response
  • osmotic stress response
  • other response
  • output response
  • ovarian response
  • oviposition response
  • own response
  • oxidative response
  • oxidative stress response
  • pain response
  • pain-free response
  • parent response
  • parental response
  • partial response
  • participant response
  • particular response
  • passive response
  • past response
  • pathogen response
  • pathologic complete response
  • pathologic response
  • pathological complete response
  • pathological response
  • patient response
  • peak gh response
  • peak response
  • perfusion response
  • ph response
  • pharmacodynamic response
  • pharmacological response
  • phase response
  • phenological response
  • phenotypic response
  • pheromone response
  • photomorphogenic response
  • photoperiodic response
  • photosynthetic response
  • phototropic response
  • photovoltaic response
  • physician response
  • physiologic response
  • physiological response
  • physiological stress response
  • piezoelectric response
  • placebo response
  • plant community response
  • plant defence response
  • plant response
  • plant stress response
  • plantar response
  • plastic response
  • platelet aggregation response
  • platelet response
  • policy response
  • political response
  • poor response
  • poorer response
  • population response
  • population-level response
  • positive response
  • positive treatment response
  • possible response
  • postsynaptic response
  • postural response
  • potential response
  • practical response
  • predator functional response
  • predicted response
  • predominant response
  • pressor response
  • pressure response
  • prey response
  • price response
  • primary immune response
  • primary response
  • pro-inflammatory response
  • process response
  • procoagulant response
  • professional response
  • proinflammatory response
  • prolactin response
  • proliferation response
  • proliferative response
  • prompt response
  • protective immune response
  • protective response
  • protein response
  • psa response
  • psychological response
  • public health response
  • public response
  • pulmonary inflammatory response
  • pulmonary response
  • pulse response
  • pupil response
  • qualitative response
  • quantitative response
  • questionnaire response
  • quick response
  • radiation response
  • radiographic response
  • radiologic response
  • rapid response
  • rapid virological response
  • rate response
  • rational response
  • recall response
  • receptor response
  • reduced response
  • reflex response
  • regenerative response
  • regulatory response
  • regulatory t cell response
  • rejection response
  • relate response
  • relative response
  • relaxant response
  • relaxation response
  • relief response
  • renal response
  • repair response
  • reproductive response
  • resistance response
  • respiratory response
  • retinal response
  • robust response
  • runoff response
  • same response
  • secondary immune response
  • secondary response
  • secretory response
  • sedimentary response
  • seedling response
  • seismic response
  • seizure response
  • selection response
  • selective response
  • sensitive response
  • sensor response
  • sensory response
  • serological response
  • serum antibody response
  • service response
  • sexual response
  • shade-avoidance response
  • share price response
  • shock response
  • short-term response
  • signal response
  • signaling response
  • signalling response
  • significant response
  • similar response
  • simulated response
  • skin blood flow response
  • skin conductance response
  • skin response
  • skin test response
  • slow response
  • slower response
  • social response
  • societal response
  • soft tissue response
  • soil response
  • sos response
  • spatial response
  • species response
  • species-specific response
  • specific antibody response
  • specific immune response
  • specific response
  • specific t-cell response
  • spectral response
  • spr response
  • sprouting response
  • staff response
  • starvation response
  • stock market response
  • stock price response
  • stomatal response
  • strain response
  • strategic response
  • streamflow response
  • stress hormone response
  • stress response
  • stringent response
  • strong immune response
  • strong response
  • stronger response
  • strongest response
  • structural response
  • student response
  • subclass response
  • subject response
  • subjective response
  • suboptimal response
  • subsequent response
  • successful immune response
  • successful response
  • superior response
  • supply response
  • survey response
  • survival response
  • sustained biochemical response
  • sustained response
  • sustained virologic response
  • sustained virological response
  • sympathetic skin response
  • symptom response
  • symptomatic response
  • synaptic response
  • system response
  • systemic immune response
  • systemic inflammatory response
  • systemic response
  • tachycardic response
  • tanning response
  • target response
  • temperature response
  • temporal response
  • test response
  • testosterone response
  • text response
  • th response
  • th1 cytokine response
  • th1 immune response
  • th1 response
  • th1-type immune response
  • th1-type response
  • th17 cell response
  • th17 response
  • th2 immune response
  • th2 response
  • th2-type response
  • therapeutic response
  • therapy response
  • thermal response
  • threshold response
  • thrombotic response
  • time response
  • tissue response
  • toxic response
  • toxicological response
  • transcriptional response
  • transient response
  • trauma response
  • treatment response
  • tumor response
  • tumour response
  • twitch response
  • type 2 response
  • type hypersensitivity response
  • type i ifn response
  • type ii functional response
  • type response
  • uk response
  • unconditioned response
  • unfolded protein response
  • uniform response
  • union response
  • unique response
  • unpredictable response
  • unusual response
  • usable response
  • user response
  • vaccine response
  • valid response
  • variable response
  • variety of response
  • various response
  • vascular response
  • vasoconstrictor response
  • vasodilator response
  • vasodilatory response
  • vasomotor response
  • vegetation response
  • velocity response
  • ventilatory response
  • ventricular response
  • verbal response
  • vibration response
  • viral response
  • virologic response
  • virological response
  • visceromotor response
  • viscoelastic response
  • visual response
  • vitro response
  • vivo response
  • vocal response
  • voice response
  • volatile response
  • voltage response
  • voltammetric response
  • weak response
  • weaker response
  • withdrawal response
  • wolf isotopic response
  • women response
  • wound healing response
  • wound response
  • yield response
  • young children response

  • Terms modified by Response

  • response accuracy
  • response amplitude
  • response analyser
  • response analysis
  • response analyzer
  • response assessment
  • response association
  • response behavior
  • response bias
  • response biase
  • response capable
  • response capacity
  • response category
  • response change
  • response characteristic
  • response coefficient
  • response comparable
  • response consistent
  • response consisting
  • response control
  • response cost
  • response criterioN
  • response criterion
  • response curve
  • response data
  • response delay
  • response difference
  • response direction
  • response duration
  • response effect
  • response element
  • response element binding protein
  • response element modulator
  • response element-binding protein
  • response error
  • response estimate
  • response evaluation
  • response evaluation criterioN
  • response experiment
  • response factor
  • response format
  • response function
  • response gene
  • response group
  • response groups
  • response index
  • response indicative
  • response inhibition
  • response kinetics
  • response latency
  • response leading
  • response learning
  • response letter
  • response level
  • response magnitude
  • response manner
  • response mapping
  • response mean
  • response measure
  • response measurement
  • response mechanism
  • response mediator protein
  • response method
  • response mode
  • response model
  • response modeling
  • response models
  • response modifier
  • response monitoring
  • response option
  • response parameter
  • response pathway
  • response pattern
  • response phenotype
  • response plan
  • response prediction
  • response probability
  • response problem
  • response profile
  • response property
  • response proportion
  • response protein
  • response range
  • response rate
  • response ratio
  • response regulator
  • response regulator gene
  • response regulator protein
  • response relation
  • response relationship
  • response relationships
  • response scale
  • response score
  • response selection
  • response sensitivity
  • response set
  • response shows
  • response signal
  • response similar
  • response simulation
  • response slope
  • response specific
  • response spectrum
  • response speed
  • response strategy
  • response studies
  • response study
  • response style
  • response suppression
  • response surface
  • response surface analysis
  • response surface design
  • response surface method
  • response surface methodology
  • response surface model
  • response surface modeling
  • response surface models
  • response syndrome
  • response system
  • response task
  • response team
  • response test
  • response testing
  • response theory
  • response theory analysis
  • response theory models
  • response threshold
  • response time
  • response time history
  • response trait
  • response type
  • response value
  • response variability
  • response variable

  • Selected Abstracts


    FROM SEDUCTION TO PASSION: A RESPONSE TO SAMPSON AND LAUB,

    CRIMINOLOGY, Issue 4 2005
    DANIEL S. NAGIN
    [source]


    THE NEED FOR A MULTI-FACETED RESPONSE TO INTIMATE PARTNER ABUSE PERPETRATED BY AFRICAN-AMERICANS

    CRIMINOLOGY AND PUBLIC POLICY, Issue 2 2007
    HILLARY POTTER
    First page of article [source]


    A RESPONSE TO PEKARIK

    CURATOR THE MUSEUM JOURNAL, Issue 3 2001
    JANET A. KAMIEN
    No abstract is available for this article. [source]


    RESPONSE TO COMMENTARIES ,CONTINUITIES AND CHANGES IN SELF-CHANGE RESEARCH'

    ADDICTION, Issue 9 2010
    HARALD KLINGEMANN
    No abstract is available for this article. [source]


    RESPONSE TO COMMENTARIES: MOVING TOWARDS AN EVIDENCE-BASED POLICY AROUND CANNABIS USE

    ADDICTION, Issue 8 2010
    JOHN MACLEOD
    No abstract is available for this article. [source]


    RESPONSE TO COMMENTARIES ON ,WHAT NEUROBIOLOGY CANNOT TELL US ABOUT ADDICTION'

    ADDICTION, Issue 5 2010
    HAROLD KALANT
    No abstract is available for this article. [source]


    RESPONSE TO FILLMORE & CHIKRITZHS (2010)

    ADDICTION, Issue 4 2010
    ANNIE BRITTON
    No abstract is available for this article. [source]


    POLICY OPTIONS FOR ALCOHOL PRICE REGULATION: RESPONSE TO THE COMMENTARIES

    ADDICTION, Issue 3 2010
    PETRA SYLVIA MEIER
    No abstract is available for this article. [source]


    DISORDER WITH LAW: A PRELIMINARY STUDY OF VIOLENCE IN RESPONSE TO WATER RIGHTS VIOLATION IN COLONIAL NEW SOUTH WALES

    ECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 2 2008
    EDWYNA HARRIS
    Scholars argue that violence will not occur in the presence of efficient property rights institutions. Empirical evidence from the Riverina district in New South Wales between 1855 and 1870 contradicts this claim. This paper provides a preliminary analysis of evidence to explain this apparent inconsistency. Violence was directed at upstream users who dammed rivers, preventing flow to downstream users. Evidence suggests violence was a form of social control referred to as self-help employed to enforce conventions of fairness. Dams were perceived as unfair because they reduced the distributive equity embodied in the common law of riparian rights that established water-use rules to allocate water between competing users. Violence in the form of dam destruction occurred primarily during drought years and was the preferred over common law remedies because of the lag time between seeking court intervention and obtaining a remedy. Coasean bargaining was not possible because of high transaction costs. The findings suggest that violence may occur in the presence of efficient property rights institutions if actors violate conventions of fairness. Violence may be more likely if property rights themselves embody these conventions. [source]


    BEHAVIOURAL INTERVENTIONS TO PREVENT WEIGHT GAIN ON SMOKING CESSATION: A RESPONSE

    ADDICTION, Issue 12 2009
    AMANDA PARSONS
    No abstract is available for this article. [source]


    RAISING THE STANDARD: A RESPONSE TO THE COMMENTATORS

    ADDICTION, Issue 11 2009
    THOMAS F. BABOR
    No abstract is available for this article. [source]


    ENGAGING THE VALUES-BASED ETHICAL DILEMMAS IN HARM MINIMIZATION: A RESPONSE TO WEATHERBURN

    ADDICTION, Issue 5 2009
    CRAIG L. FRY
    No abstract is available for this article. [source]


    DILEMMAS IN HARM MINIMIZATION: A RESPONSE TO FRY & IRWIN

    ADDICTION, Issue 5 2009
    DON WEATHERBURN
    No abstract is available for this article. [source]


    DILEMMAS IN HARM MINIMIZATION: A RESPONSE TO MY CRITICS

    ADDICTION, Issue 3 2009
    DON J. WEATHERBURN
    No abstract is available for this article. [source]


    BEYOND WITHDRAWAL SYMPTOMS: RESPONSE TO DIFRANZA

    ADDICTION, Issue 3 2008
    SHU-HONG ZHU
    No abstract is available for this article. [source]


    THE ALCOHOL DEPENDENCE SYNDROME, 30 YEARS LATER,A RESPONSE TO THE COMMENTARIES

    ADDICTION, Issue 10 2007
    TING-KAI LI
    No abstract is available for this article. [source]


    THE CORE MESSAGE IN THE PREVENTION PARADOX: RESPONSE TO COMMENTS

    ADDICTION, Issue 2 2006
    INGEBORG ROSSOW
    No abstract is available for this article. [source]


    IMPROVING UNDERSTANDING OF SIBLING EFFECTS ON ADOLESCENT SMOKING: RESPONSE TO THE COMMENTARIES

    ADDICTION, Issue 4 2005
    RICHARD RENDE
    No abstract is available for this article. [source]


    RELATIVE ROLE OF GENETIC DETERMINATION AND PLASTIC RESPONSE DURING ONTOGENY FOR SHELL-SHAPE TRAITS SUBJECTED TO DIVERSIFYING SELECTION

    EVOLUTION, Issue 5 2009
    Paula Conde-Padín
    We studied the relative role of genetic determination versus plastic response for traits involved in ecological adaptation of two ecotypes of Littorina saxatilis living at different shore levels. To investigate the magnitude of the plastic response across ontogeny, we compared morphological data from individuals grown in the laboratory and taken from the wild at three developmental stages: shelled embryos, juveniles, and adults. The results indicate that most shell shape variation (72,99%) in adaptive traits (globosity and aperture of the shell) is explained by the ecotype irrespective of the growth environment, suggesting that direct genetic determination is the main factor responsible for the process of adaptation in the wild. There was a tendency for the contribution of plasticity to increase over ontogeny but, in general, the direction of the plastic response did not suggest that this was adaptive. [source]


    EVOLUTIONARY REDUCTION IN TESTES SIZE AND COMPETITIVE FERTILIZATION SUCCESS IN RESPONSE TO THE EXPERIMENTAL REMOVAL OF SEXUAL SELECTION IN DUNG BEETLES

    EVOLUTION, Issue 10 2008
    Leigh W. Simmons
    Sexual selection is thought to favor the evolution of secondary sexual traits in males that contribute to mating success. In species where females mate with more than one male, sexual selection also continues after copulation in the form of sperm competition and cryptic female choice. Theory suggests that sperm competition should favor traits such as testes size and sperm production that increase a male's competitive fertilization success. Studies of experimental evolution offer a powerful approach for assessing evolutionary responses to variation in sexual selection pressures. Here we removed sexual selection by enforcing monogamy on replicate lines of a naturally polygamous horned beetle, Onthophagus taurus, and monitoring male investment in their testes for 21 generations. Testes size decreased in monogamous lines relative to lines in which sexual selection was allowed to continue. Differences in testes size were dependent on selection history and not breeding regime. Males from polygamous lines also had a competitive fertilization advantage when in sperm competition with males from monogamous lines. Females from polygamous lines produced sons in better condition, and those from monogamous lines increased their sons condition by mating polygamously. Rather than being costly for females, multiple mating appears to provide females with direct and/or indirect benefits. Neither body size nor horn size diverged between our monogamous and polygamous lines. Our data show that sperm competition does drive the evolution of testes size in onthophagine beetles, and provide general support for sperm competition theory. [source]


    EJACULATE DEPLETION PATTERNS EVOLVE IN RESPONSE TO EXPERIMENTAL MANIPULATION OF SEX RATIO IN DROSOPHILA MELANOGASTER

    EVOLUTION, Issue 8 2007
    Jon R. Linklater
    We assessed the extent to which traits related to ejaculate investment have evolved in lines of Drosophila melanogaster that had an evolutionary history of maintenance at biased sex ratios. Measures of ejaculate investment were made in males that had been maintained at male-biased (MB) and female-biased (FB) adult sex ratios, in which levels of sperm competition were high and low, respectively. Theory predicts that when the risk of sperm competition is high and mating opportunities are rare (as they are for males in the MB populations), males should increase investment in their few matings. We therefore predicted that males from the MB lines would (1) exhibit increased investment in their first mating opportunities and (2) deplete their ejaculates at a faster rate when mating multiply, in comparison to FB males. To investigate these predictions we measured the single mating productivity of males from three replicates each of MB and FB lines mated to five wild-type virgin females in succession. In contrast to the first prediction, there was no evidence for differences in productivity between MB and FB line males in their first matings. The second prediction was upheld: mates of MB and FB males suffered increasingly reduced productivity with successive matings, but the decline was significantly more pronounced for MB than for FB males. There was a significant reduction in the size of the accessory glands and testes of males from the MB and FB regimes after five successive matings. However, the accessory glands, but not testes, of MB males became depleted at a significantly faster rate than those of FB males. The results show that male reproductive traits evolved in response to the level of sperm competition and suggest that the ability to maintain fertility over successive matings is associated with the rate of ejaculate, and particularly accessory gland, depletion. [source]


    COSTS OF AN INDUCED IMMUNE RESPONSE ON SEXUAL DISPLAY AND LONGEVITY IN FIELD CRICKETS

    EVOLUTION, Issue 10 2004
    Alain Jacot
    Abstract Immune system activation may benefit hosts by generating resistance to parasites. However, natural resources are usually limited, causing a trade-off between the investment in immunity and that in other life-history or sexually selected traits. Despite its importance for the evolution of host defense, state-dependent fitness costs of immunity received little attention under natural conditions. In a field experiment we manipulated the nutritional condition of male field crickets Gryllus campestris and subsequently investigated the effect of an induced immune response through inoculation of bacterial lipopolysaccharides. Immune system activation caused a condition-dependent reduction in body condition, which was proportional to the condition-gain during the preceding food-supplementation period. Independent of nutritional condition, the immune insult induced an enduring reduction in daily calling rate, whereas control-injected males fully regained their baseline level of sexual signaling following a temporary decline. Since daily calling rate affects female mate choice under natural conditions, this suggests a decline in male mating success as a cost of induced immunity. Food supplementation enhanced male life span, whereas the immune insult reduced longevity, independent of nutritional status. Thus, immune system activation ultimately curtails male fitness due to a combined decline in sexual display and life span. Our field study thus indicates a key role for fitness costs of induced immunity in the evolution of host defense. In particular, costs expressed in sexually selected traits might warrant the honest advertisement of male health status, thus representing an important mechanism in parasite-mediated sexual selection. [source]


    THE CONTRIBUTION OF AN HOURGLASS TIMER TO THE EVOLUTION OF PHOTOPERIODIC RESPONSE IN THE PITCHER-PLANT MOSQUITO, WYEOMYIA SMITHII

    EVOLUTION, Issue 10 2003
    W. E. Bradshaw
    Abstract Photoperiodism, the ability to assess the length of day or night, enables a diverse array of plants, birds, mammals, and arthropods to organize their development and reproduction in concert with the changing seasons in temperate climatic zones. For more than 60 years, the mechanism controlling photoperiodic response has been debated. Photoperiodism may be a simple interval timer, that is, an hourglasslike mechanism that literally measures the length of day or night or, alternatively, may be an overt expression of an underlying circadian oscillator. Herein, we test experimentally whether the rhythmic response in Wyeomyia smithii indicates a causal, necessary relationship between circadian rhythmicity and the evolutionary modification of photoperiodic response over the climatic gradient of North America, or may be explained by a simple interval timer. We show that a day-interval timer is sufficient to predict the photoperiodic response of W. smithii over this broad geographic range and conclude that rhythmic responses observed in classical circadian-based experiments alone cannot be used to infer a causal role for circadian rhythmicity in the evolution of photoperiodic time measurement. More importantly, we argue that the pursuit of circadian rhyth-micity as the central mechanism that measures the duration of night or day has distracted researchers from consideration of the interval-timing processes that may actually be the target of natural selection linking internal photoperiodic time measurement to the external seasonal environment. [source]


    EVOLUTION OF PREY BEHAVIOR IN RESPONSE TO CHANGES IN PREDATION REGIME: DAMSELFLIES IN FISH AND DRAGONFLY LAKES

    EVOLUTION, Issue 3 2003
    R. Stoks
    Abstract In a large behavioral experiment we reconstructed the evolution of behavioral responses to predators to explore how interactions with predators have shaped the evolution of their prey,behavior. All Enallagma damselfly species reduced both movement and feeding in the presence of coexisting predators. Some Enallagma species inhabit water bodies with both fish and dragonflies, and these species responded to the presence of both predators, whereas other Enallagma species inhabit water bodies that have only large dragonflies as predators, and these species only responded to the presence of dragonflies. Lineages that shifted to live with large dragonflies showed no evolution in behaviors expressed in the presence of dragonflies, but they evolved greater movement in the absence of predators and greater movement and feeding in the presence of fish. These results suggest that Enallagma species have evolutionarily lost the ability to recognize fish as a predator. Because species coexisting with only dragonfly predators have also evolved the ability to escape attacking dragonfly predators by swimming, the decreased predation risk associated with foraging appears to have shifted the balance of the foraging/predation risk trade-off to allow increased activity in the absence of mortality threats to evolve in these lineages. Our results suggest that evolution in response to changes in predation regime may have greater consequences for characters expressed in the absence of mortality threats because of how the balance between the conflicting demands of growth and predation risk are altered. [source]


    MATERIAL RESPONSE OF RAMAX-2 DURING HIGH-SPEED MACHINING USING QUICK-STOP DEVICE

    EXPERIMENTAL TECHNIQUES, Issue 2 2009
    M. Zeb
    First page of article [source]


    DYNAMIC RESPONSE OF TIMBER BRIDGES AS A TOOL TO MEASURE STRUCTURAL INTEGRITY

    EXPERIMENTAL TECHNIQUES, Issue 3 2003
    A.M. Morison
    First page of article [source]


    RESPONSE OF A MONTENEGRO GLACIER TO EXTREME SUMMER HEATWAVES IN 2003 AND 2007

    GEOGRAFISKA ANNALER SERIES A: PHYSICAL GEOGRAPHY, Issue 4 2008
    PHILIP.
    ABSTRACT. The Debeli Namet glacier in the Durmitor massif, Montenegro, is one of the lowest altitude glaciers (2050,2300 m) at this latitude (42,44°N) in the northern hemisphere. The glacier survives well below the climatological equilibrium line altitude because of substantial inputs from avalanching and windblown snow. The glacier survived two of the hottest summers on record in 2003 and 2007, although it experienced significant retreat. However, during the intervening years (2004,2006) the glacier increased in size and advanced, forming a new frontal moraine. This rapid advance was primarily in response to much cooler summer temperatures, close to or cooler than average, and a marked increase in winter precipitation. The rapid growth and decay of the Debeli Namet glacier in response to inter-annual climate variability highlights the sensitivity of small cirque glaciers to short-term climate change. [source]


    THE RESPONSE OF PARTIALLY DEBRIS-COVERED VALLEY GLACIERS TO CLIMATE CHANGE: THE EXAMPLE OF THE PASTERZE GLACIER (AUSTRIA) IN THE PERIOD 1964 TO 2006

    GEOGRAFISKA ANNALER SERIES A: PHYSICAL GEOGRAPHY, Issue 4 2008
    ANDREAS KELLERER-PIRKLBAUER
    ABSTRACT. Long-term observations of partly debris-covered glaciers have allowed us to assess the impact of supra-glacial debris on volumetric changes. In this paper, the behaviour of the partially debris-covered, 3.6 km2 tongue of Pasterze Glacier (47°05,N, 12°44,E) was studied in the context of ongoing climate changes. The right part of the glacier tongue is covered by a continuous supra-glacial debris mantle with variable thicknesses (a few centimetres to about 1 m). For the period 1964,2000 three digital elevation models (1964, 1981, 2000) and related debris-cover distributions were analysed. These datasets were compared with long-term series of glaciological field data (displacement, elevation change, glacier terminus behaviour) from the 1960s to 2006. Differences between the debriscovered and the clean ice parts were emphasised. Results show that volumetric losses increased by 2.3 times between the periods 1964,1981 and 1981,2000 with significant regional variations at the glacier tongue. Such variations are controlled by the glacier emergence velocity pattern, existence and thickness of supra-glacial debris, direct solar radiation, counter-radiation from the valley sides and their changes over time. The downward-increasing debris thickness is counteracting to a compensational stage against the common decrease of ablation with elevation. A continuous debris cover not less than 15 cm in thickness reduces ablation rates by 30,35%. No relationship exists between glacier retreat rates and summer air temperatures. Substantial and varying differences of the two different terminus parts occurred. Our findings clearly underline the importance of supra-glacial debris on mass balance and glacier tongue morphology. [source]


    ALPINE AREAS IN THE COLORADO FRONT RANGE AS MONITORS OF CLIMATE CHANGE AND ECOSYSTEM RESPONSE,

    GEOGRAPHICAL REVIEW, Issue 2 2002
    MARK W. WILLIAMS
    ABSTRACT. The presence of a seasonal snowpack in alpine environments can amplify climate signals. A conceptual model is developed for the response of alpine ecosystems in temperate, midlatitude areas to changes in energy, chemicals, and water, based on a case study from Green Lakes Valley,Niwot Ridge, a headwater catchment in the Colorado Front Range. A linear regression shows the increase in annual precipitation of about 300 millimeters from 1951 to 1996 to be significant. Most of the precipitation increase has occurred since 1967. The annual deposition of inorganic nitrogen in wetfall at the Niwot Ridge National Atmospheric Deposition Program site roughly doubled between 1985,1988 and 1989,1992. Storage and release of strong acid anions, such as those from the seasonal snowpack in an ionic pulse, have resulted in episodic acidification of surface waters. These biochemical changes alter the quantity and quality of organic matter in high-elevation catchments of the Rocky Mountains. Affecting the bottom of the food chain, the increase in nitrogen deposition may be partly responsible for the current decline of bighorn sheep in the Rocky Mountains. [source]


    SEEING AND SAYING: A RESPONSE TO "INCONGRUOUS IMAGES",

    HISTORY AND THEORY, Issue 4 2009
    GEOFFREY BATCHEN
    ABSTRACT In responding to an essay by Marianne Hirsch and Leo Spitzer about photographs taken in the streets of Chernivitsi (Czernowitz) in the 1940s, and thus in the midst of the Holocaust, this paper seeks to link their concerns to a broader consideration of photography as a modern phenomenon. In the process, the paper provides a brief history of street photography, a genre virtually ignored in standard histories of the photographic medium. The author suggests that Hirsch and Spitzer's paper bravely reminds us that our fascination with photographs is based not on truth, but on a combination of desire (our own desire to transcend death) and faith (in photography's ability to deliver this end, in the face of all the evidence to the contrary). Their account of street photography in Czernowitz thereby amounts to an interpretation of photographs as dynamic modes of apprehension rather than as static objects from the past that veridically represent it. It is precisely this aspect of photographs that makes them such unusually complicated, ambiguous, and incongruous historical objects. [source]