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Integr Comp Biol 2022 May 19. Epub 2022 May 19.

Cornell University, Department of Psychology, Ithaca, NY, 14853.

In general, males should be particularly attentive to cues of sexual availability and females should advertise accordingly. Vaginal patency (i.e. Read More

PLoS One 2022 19;17(5):e0268678. Epub 2022 May 19.

Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain.

Birds can assess nest predation risk and adjust their parental activity accordingly. Risk taking behavior should be related to investment in reproduction as well as to confidence in parenthood that often differ between sexes. In those cases, sexual differences in risk taking behavior may be expected. Read More

G3 (Bethesda) 2022 May 19. Epub 2022 May 19.

Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Hunan Normal University, Changsha, 410081, China.

Sexual dimorphism occurs widely throughout insects and has profound influences on evolutionary path. Sex-biased genes are considered to account for most of phenotypic differences between sexes. In order to explore the sex-biased genes potentially associated with sexual dimorphism and sexual development in Drosophila suzukii, a major devastating and invasive crop pest, we conducted whole-organism transcriptome profiling and sex-biased gene expression analysis on adults of both sexes. Read More

Integr Comp Biol 2022 May 19. Epub 2022 May 19.

Department of Biology, Colorado State University, 1878 Campus Delivery Fort Collins, CO 80523, USA.

Shifts in the timing of cyclic seasonal life-history events are among the most commonly reported responses to climate change, with differences in response rates among interacting species leading to phenological mismatches. Within a species, however, males and females can also exhibit differential sensitivity to environmental cues and may therefore differ in their responsiveness to climate change, potentially leading to phenological mismatches between the sexes. This occurs because males differ from females in when and how energy is allocated to reproduction, resulting in marked sex-differences in life-history timing across the annual cycle. Read More

J Exp Biol 2022 May 19. Epub 2022 May 19.

Department of Ecology, Evolution, and Organismal Biology, Brown University, 171 Meeting Street, Providence, RI 02912, USA.

Androgens mediate the expression of many reproductive behaviors, including the elaborate displays used to navigate courtship and territorial interactions. In some vertebrates, males can produce androgen-dependent sexual behavior even when levels of testosterone (T) is low in the bloodstream. One idea is that select tissues make their own androgens from scratch to support behavioral performance. Read More