U.S. flag

An official website of the United States government

PubAg

Main content area

Search

2  Search Results

1 - 2 of 2
Number of results to display per page

Search Results

1. Mating patterns of Gammarus lacustris (Amphipoda: Gammaridae) from three populations across a gradient on the Tibetan Plateau

Author:
Yu, T. L.; Chen, J. B.
Source:
The Italian journal of zoology 2013 v.80 no.4 pp. 608-613
ISSN:
1748-5851
Subject:
Gammarus; body size; dimorphism; fecundity; females; males; microhabitats; population; random mating; sexual selection; zoology; China
Abstract:
... The large-male mating advantage and size-assortative mating are two different size-based patterns which deviate from random mating in Gammarus species. The size-assortative pairing in gammarid amphipods may have arisen for microhabitat segregation, loading constraints, sexual selection, or a combination of them. This study investigated the mating patterns of Gammarus lacustris from three populatio ...
DOI:
10.1080/11250003.2013.849295

2. Factors influencing sexual cannibalism and its benefit to fecundity and offspring survival in the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae)

Author:
Wu, Lingbing; Zhang, Huaping; He, Ting; Liu, Zeliang; Peng, Yu
Source:
Behavioral ecology and sociobiology 2013 v.67 no.2 pp. 205-212
ISSN:
0340-5443
Subject:
Pardosa; cannibalism; copulation; dimorphism; eggs; fecundity; hunger; males; progeny; virgin females; China
Abstract:
... Sexual cannibalism is hypothesized to have evolved as a way to obtain a high-quality meal, as an extreme mate choice or as a consequence of female aggressive spillover. Here, we examined underlying factors likely to influence sexual cannibalism in the wolf spider Pardosa pseudoannulata (Bösenberg & Strand, 1906) from China, including mating status, female egg-laid status, female hunger level, fema ...
DOI:
10.1007/s00265-012-1440-2