Positive allometry of sexually selected traits: Do metabolic maintenance costs play an important role?
Sign Up to like & getrecommendations! Published in 2021 at "BioEssays"
DOI: 10.1002/bies.202000183
Abstract: Sexual selection drives the evolution of some of the most exaggerated traits in nature. Studies on sexual selection often focus on the size of these traits relative to body size, but few focus on energetic… read more here.
Keywords: selected traits; maintenance; size; maintenance costs ... See more keywords
Developing a transcriptomic framework for testing testosterone-mediated handicap hypotheses.
Sign Up to like & getrecommendations! Published in 2020 at "General and comparative endocrinology"
DOI: 10.1016/j.ygcen.2020.113577
Abstract: Sexually selected traits are hypothesized to be honest signals of individual quality due to the costs associated with their maintenance, development, and/or production. Testosterone, a sex steroid associated with the development and/or production of sexually… read more here.
Keywords: selected traits; handicap; testosterone; sexually selected ... See more keywords
Urban sparrows respond to a sexually selected trait with increased aggression in noise
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-25834-6
Abstract: Animals modify acoustic communication signals in response to noise pollution, but consequences of these modifications are unknown. Vocalizations that transmit best in noise may not be those that best signal male quality, leading to potential… read more here.
Keywords: respond sexually; sparrows respond; urban sparrows; bandwidth songs ... See more keywords
Hunting promotes spatial reorganization and sexually selected infanticide
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DOI: 10.1038/srep45222
Abstract: Harvest can affect the ecology and evolution of wild species. The removal of key individuals, such as matriarchs or dominant males, can disrupt social structure and exacerbate the impact of hunting on population growth. We… read more here.
Keywords: selected infanticide; hunter killed; sexually selected; reorganization ... See more keywords
The longer the better: evidence that narwhal tusks are sexually selected
Sign Up to like & getrecommendations! Published in 2020 at "Biology Letters"
DOI: 10.1098/rsbl.2019.0950
Abstract: Once thought to be the magical horn of a unicorn, narwhal tusks are one of the most charismatic structures in biology. Despite years of speculation, little is known about the tusk's function, because narwhals spend… read more here.
Keywords: narwhal tusks; longer better; better evidence; biology ... See more keywords
Opposing population trends of fork‐tailed swallows and reddish‐coloured swallows in our changing world
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Evolutionary Biology"
DOI: 10.1111/jeb.13736
Abstract: Sexual selection can in theory lead to positive and negative effect on population‐level fitness and hence population increase/decline in our changing world, but the empirical evidence is scarce. Using a phylogenetic comparative approach, we examined… read more here.
Keywords: sexual selection; sexually selected; changing world; population trends ... See more keywords
Sexually selected traits are larger and more variable in male than female beach-spawning capelin Mallotus villosus.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of fish biology"
DOI: 10.1111/jfb.14145
Abstract: We evaluated whether morphological traits in capelin Mallotus villosus that appear to be sexually selected (pectoral fin, pelvic fin, anal fin, lateral ridge) were larger and more variable in males than females compared with naturally… read more here.
Keywords: beach; mallotus villosus; larger variable; sexually selected ... See more keywords
The metabolic cost of carrying a sexually selected trait in the male fiddler crab Uca pugilator
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Experimental Biology"
DOI: 10.1242/jeb.163816
Abstract: ABSTRACT Models proposed to explain sexually selected structures assume that these traits are costly. However, studies investigating the impact of such structures on locomotory costs have produced inconsistent results. Male fiddler crabs possess a large… read more here.
Keywords: claw; locomotion; male fiddler; sexually selected ... See more keywords
Predation drives complex eco-evolutionary dynamics in sexually selected traits
Sign Up to like & getrecommendations! Published in 2023 at "PLOS Biology"
DOI: 10.1371/journal.pbio.3002059
Abstract: Predation plays a role in preventing the evolution of ever more complicated sexual displays, because such displays often increase an individual’s predation risk. Sexual selection theory, however, omits a key feature of predation in modeling… read more here.
Keywords: sexual displays; predation; eco evolutionary; sexually selected ... See more keywords
The mediating role of sexually selected traits in the association of androgynous tendencies with lower sexual activeness among Chinese youths
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Psychology"
DOI: 10.3389/fpsyg.2022.1011467
Abstract: Androgynous tendencies and persistently low fertility rates have been observed in many countries, causing major social concerns. The theory of sexual selection suggests a possible mechanism between androgyny and decreased sexual activeness, as masculinity and… read more here.
Keywords: sexual activeness; role; activeness; sexually selected ... See more keywords