In contrast to predictions, we did not find population differences in plasticity; across all populations, however, we found significant plasticity in the guppy mating system in response to anthropogenically increased turbidity. While males spent less time associating with females in turbid water overall...
male guppy aquarium fish ID: 1304879722 收藏 加入清单 下载版权Emmanuel Nalli TIFF大小 54.7MB 格式JPG 编辑图片 以图搜图 大图:5356× 3571 像素·45.35 cm × 30.23 cm·300dpi·JPG 中图:1000× 667 像素·35.28 cm × 23.53 cm·72dpi·JPG 小图:500× 334 像素·17.64 cm × 11.78 cm·72dpi·...
Reproductive interference in live-bearing fish: the male guppy is a potential biological agent for eradicating invasive mosquitofishThe eradication of invasive exotic species is desirable but often infeasible. Here, we show that male guppies are a potential biological agent for eradicating invasive ...
To test the relative importance of female choice, sneak copulation and male dominance as determinants of male mating success in a feral guppy population, we conducted a paired-male mating experiment using the colour patterns of male progeny to score paternity. Sneak copulation and male-male ...
Our results suggest that the presence of male harassment within a guppy population can alter the degree of variation in swimming mechanics present among females, thus decreasing their costs of loco- motion. The actual energetic cost of pectoral fin move- ments during subcarangifor...
Anitandrogenic Pesticides Disrupt Sexual Characteristics in Adult Male Guppy (Poecilia reticulata). 来自 EBSCO 喜欢 0 阅读量: 55 作者:Baatrup,Erik,Junge,Mette 摘要: Environmental contaminants have been identified as endocrine disrupters through their antiandrogenic activity. Thus, as androgen receptor ...
Combined DNA In typical sexual reproduction, a set of genes from each parent would combine randomly to create offspring with a mix of features from both. In male guppyfish, however, packages of genes in cells – known as chromosomes – were found to exchange genes only from their tips. ...
Here, we tested the effect of GenX and PFOA on the phenotypic expression of reproductive traits and the gene expression in the testes of a freshwater fish, the guppy (Poecilia reticulata). Guppies are small, sexually dimorphic, live-bearing freshwater fish, whose reproductive traits and mating ...
The presence of organotin compounds as pollutants in the aquatic environment has initiated some toxicity studies in fish species. InPoecilia reticulata(guppy), the thymus proves to be among the organs most sensitive to TBTO (exposure to water levels above 0.03 μg/liter during 1- to 3-month ex...
Another battle of the sexes: the consequences of sexual asymmetry in mating costs and predation risk in the guppy, Poecilia reticulata. Proc. R. Soc. Lond. B 246, 31–38 (1991). 21. Su, K. & Li, D. Female-biased predation risk and its differential effect on the male and female ...