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Male and female golden whistlers respond differently to static and dynamic signals of male intruders
(OXFORD UNIV PRESS INC, 2008-09)
Bird displays vary widely in their sensitivity to changes in signaler condition. Plumage ornaments are generally static and undergo
minimal change. Behavioral ornaments, by contrast, are dynamic and may track signaler ...
Divergence of Acoustic Signals in a Widely Distributed Frog: Relevance of Inter-Male Interactions
(PLOS One, 2014)
Divergence of acoustic signals in a geographic scale results from diverse evolutionary forces acting in parallel and affecting
directly inter-male vocal interactions among disjunct populations. Pleurodema thaul is a frog ...
Prenatal exposure to androgen excess increases LH pulse amplitude during postnatal life in male sheep
(2012)
Prenatal exposure to excess testosterone has a profound impact on reproductive and metabolic functions in young and adult female sheep. Nevertheless, few studies have addressed the impact of prenatal exposure to an excess ...
Do female Nicrophorus vespilloides reduce direct costs by choosing males that mate less frequently?
(Royal Soc, 2016)
Sexual conflict occurs when selection to maximize fitness in one sex does so at the expense of the other sex. In the burying beetle Nicrophorus vespilloides, repeated mating provides assurance of paternity at a direct cost ...
Monomorphic call structure and dimorphic vocal phenology in a sex-role reversed frog
(Springer, 2020)
Sexual signals in different animals are expected to be dimorphic when both sexes signal, but cases of monomorphism are known to occur, and we lack a clear understanding about the factors that modulate the level of sexual ...
Male wing fanning by the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae) produces a courtship song.
(2011)
We, herein, report evidence that wing fanning by the aphid parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) constitutes a courtship song. Complete removal of the forewings or only the distal half of them reduced ...
Individual quality and extra-pair paternity in the blue tit: sexy males bear the costs.
(Wiley, 2020)
Adaptive explanations for the evolution of extra-pair paternity (EPP) suggest that females seek extra-pair copulations with high quality males. Still, the link between ornamentation, individual quality, and paternity remains ...
Paternity Loss in Relation to Male Age, Territorial Behaviour and Stress in the Pied Flycatcher
(Blackwell, 2010)
For sexual selection to operate in monogamous species, males of poor
quality in some factor like age, ornamentation, condition or aggressiveness,
should lose paternity compared with higher quality males. We
tested this ...
Evidence for differential maternal allocation to eggs in relation to manipulated male attractiveness in the pied flycatcher (Ficedula hypoleuca)
(SPRINGER, 2006-10)
We present evidence of differential maternal allocation to eggs in response to manipulated male attractiveness in the migratory pied flycatcher (Ficedula hypoleuca). We manipulated the size of a male secondary sexual trait, ...
Altered testicular development as a consequence of increase number of sertoli cell in male lambs exposed prenatally to excess testosterone
(Springer, 2013-06)
The reprograming effects of prenatal testosterone (T) treatment on postnatal reproductive parameters have been studied extensively in females of several species but similar studies in males are limited. We recently found ...