Search results for "Biological Evolution"

showing 2 items of 522 documents

Diversity in warning coloration: selective paradox or the norm?

2019

Aposematic theory has historically predicted that predators should select for warning signals to converge on a single form, as a result of frequency-dependent learning. However, widespread variation in warning signals is observed across closely related species, populations and, most problematically for evolutionary biologists, among individuals in the same population. Recent research has yielded an increased awareness of this diversity, challenging the paradigm of signal monomorphy in aposematic animals. Here we provide a comprehensive synthesis of these disparate lines of investigation, identifying within them three broad classes of explanation for variation in aposematic warning signals: …

varoitusväripolytypismFREQUENCY-DEPENDENT SELECTIONModels BiologicalSEXUAL SELECTIONpolymorphismPOLYMORPHIC MULLERIAN MIMICRYSex FactorsmonimuotoisuusAnimalsaposematismEcosystemGRAPHOSOMA-LINEATUM HETEROPTERAPolymorphism GeneticINDO-WEST PACIFICEVOLUTIONARY SIGNIFICANCEBiological MimicryAge FactorsTemperaturePOISON FROGSOriginal ArticlesBiodiversityPigments BiologicalBiological EvolutionCORAL-SNAKE PATTERNcontinuous variationmuunteluBiological Variation PopulationPredatory Behavior1181 Ecology evolutionary biologyHISTORY TRADE-OFFSOriginal ArticleHELICONIUS BUTTERFLIES
researchProduct

Seeing red? Colour biases of foraging birds are context dependent.

2020

Funder: Suomen Kulttuurirahasto; doi: http://dx.doi.org/10.13039/501100003125

warning colouration0106 biological sciencesgenetic structuresFood choicefood choicePREFERENCESTrade-off01 natural sciencesPredationFood choiceDOMESTIC CHICKSAvoidance learningPasseriformessinitiainenEDUCATED PREDATORSbiology05 social sciencesCyanistestalitiainenREDWINGS TURDUS-ILIACUSWarning colourationcolour preferenceBiological Evolutiongreat titsTRADE-OFFavoidance learning1181 Ecology evolutionary biologyEAT DEFENDED PREYvaroitusväriFRUIT COLORGreat titsForagingZoologyColorExperimental and Cognitive PsychologyColour preferenceeläinten käyttäytyminen010603 evolutionary biologyväritBlue titsBiasFOODJuvenileAnimals0501 psychology and cognitive sciences050102 behavioral science & comparative psychologySensory cueEcology Evolution Behavior and SystematicsParusblue titsOriginal Paperbiology.organism_classificationsaalistusPATTERNFruitAPOSEMATIC INSECT
researchProduct