English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Many male insects provide somatic nuptial gifts that may strongly influence reproductive fitness by insuring an effective copulation or by increasing paternal investment. In the striped ground cricket, Allonemobius socius (Scudder), females receive a nuptial gift by chewing on a specialized spur on the male’s hind tibia during copulation. Using a series of no-choice trials, we attempted to quantify gift magnitude and to determine the relationships between male size, gift contribution, and male mating success. Tibial spur chewing duration was a significant predictor of gift contribution (F1,17 = 17.02, P < 0.001) and the magnitude of the gift ranged between 0.2% and 8% of the male’s body mass, implying that females receive mostly hemolymph. Large males produced bigger gifts than small males (2.52 ± 0.59 mg vs. 1.33 ± 0.28 mg, t17 = 1.88, P < 0.05, respectively) and females were more likely to mate with larger males (F1,39 = 4.76, P < 0.05). If gift size is shown to influence female reproductive fitness, then nuptial gifts may play a large role in the evolution of male body size.

TIBIAL SPUR FEEDING IN GROUND CRICKETS: LARGER MALES CONTRIBUTE LARGER GIFTS (ORTHOPTERA: GRYLLIDAE)