Results 11 to 20 of about 1,474 (223)
Chase-away evolution maintains imperfect mimicry in a brood parasite-host system despite rapid evolution of mimics. [PDF]
AbstractWe studied a brood parasite–host system (the cuckoo finch Anomalospiza imberbis and its host, the tawny-flanked prinia Prinia subflava) to test (1) the fundamental hypothesis that deceptive mimics evolve to resemble models, selecting in turn for models to evolve away from mimics (‘chase-away evolution’) and (2) whether such reciprocal evolution
Dixit T +10 more
europepmc +12 more sources
Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? [PDF]
Abstract Coevolutionary interactions between avian brood parasites and their hosts often lead to the evolution of discrimination and rejection of parasite eggs or chicks by hosts based on visual cues, and the evolution of visual mimicry of host eggs or chicks by brood parasites.
Noh HJ +3 more
europepmc +5 more sources
Imitation, Mimicry, and the Performance of Americanness in Nabokov’s Pnin
Recent scholarship on Vladimir Nabokov has increasingly drawn connections between his literary works and his scientific interests, first and foremost his thinking on insect mimicry. While this approach to Nabokov’s writing has been productive for several
Annika M. Schadewaldt
doaj +2 more sources
Explaining imperfect ant mimicry
Many species have evolved to mimic unprofitable models in order to avoid attack by predators. Mimics are most likely to deceive predators if they resemble their models very accurately, so the existence of many poor mimics is a puzzle. Currently, there is no shortage of hypotheses to explain the persistence of poor mimicry, but comparative evidence ...
Donald J. McLean (8039780)
openaire +2 more sources
Imperfect chemical female mimicry in males of the ant Cardiocondyla obscurior
Winged and wingless males coexist in the ant Cardiocondyla obscurior. Wingless ("ergatoid") males never leave their maternal colony and fight remorselessly among each other for the access to emerging females. The peaceful winged males disperse after about 10 days, but beforehand also mate in the nest.
Cremer S. +5 more
core +5 more sources
Hybridization constrains the evolution of mimicry complexes in woodpeckers
The evolution of interspecific mimicry does not always result in perfect resemblance between mimics and models. Differences between members of a mimicry complex can be explained by genetic or developmental constraints.
Jente Ottenburghs +1 more
doaj +2 more sources
The evolution of imperfect floral mimicry [PDF]
The theory of mimicry predicts that selection favors signal refinement in mimics to optimally match the signals released by their specific model species. We provide here chemical and behavioral evidence that a sexually deceptive orchid benefits from its mimetic imperfection to its co-occurring and specific bee model by triggering a stronger response in
Vereecken, Nicolas +1 more
openaire +4 more sources
Mutualisms involve cooperation, but also frequently involve conflict. Plant-pollinator mutualisms are no exception. To facilitate animal pollination, flowering plants often offer pollen (their male gametes) as a food reward.
Avery L. Russell +3 more
doaj +1 more source
A Comparative Analysis of the “Hegemonic Other” in the Plays The Island by Athol Fugard and Parvarbandan by Gholam-Hossein Sa’edi [PDF]
IntroductionOne of the functions of American school in Comparative Literature is the possibility to equalize literary works from different geographic regions that do not share any historical grounds.
Abtin Golkar +2 more
doaj +1 more source
The Evolution of Predator Resemblance in Avian Brood Parasites
Predators have profound effects on prey behavior and some adult brood parasites use predator resemblance to exploit the antipredator defenses of their hosts.
Jennifer E. York, Jennifer E. York
doaj +1 more source

