Size-assortative pairing in Gammarus pulex (Crustacea: Amphipoda): a test of the prudent choice hypothesis . Anim Behav 2010 ; 79 : 911 - 916 .↵ Franceschi N , Lemaitre J , Cézilly F , Bollache L . Size-assortative pairing in Gammarus pulex (Crustacea: Amphipoda): a test of the ...
(2002)found a higher sex ratio inG. pulexexposed to 17α-ethynylestradiol, at concentrations as low as 0.1 μg/L. Since the relative number of females had increased there was a concomitant increase in the population size as a result of the exposure to this xenoestrogen. Despite these ...
pulex. The hypothesis that size assortative mating in Gammarus pulex is due to male-male competition was examined in three experiments. When males were given a choice of two mates they preferred to enter into precopula with the female that offe... R Elwood,J Gibson,S Neil - 《Animal ...
Nonylphenol caused an increase in the length of the second antennae of male amphipod Gammarus pulex possibly through the androgenic gland (Rodríguez et al., 2007). Exposure of G. pulex to 17α-ethynylestradiol at 0.1 μg/L increased the number of females and also the population size although...
pulex and G. roeseli in the drift was measured using three drift nets (50×50 cm, mesh size 500 μm) placed side by side in the middle of the river (water depth 35 cm, water temperature 7–8°C, dissolved oxygen 9.2–11.6 mg.l-1 and conductivity 552–684 μS.cm-1, data from...
Variation in size-assortative pairing was studied in relation to sexual selection on male body size in the amphipod Gammarus pulex, using both transverse and longitudinal surveys of natural populations. In addition, the influence of male–male competition on size-assortative pairing was tested in the...
Chemosphere 26:1375–1381 Taylor E, Rees E, Pascoe D (1994) Mortality and drift related response of the freshwater amphipod Gammarus pulex (L) exposed to natural sediments, acidification and copper. Aquat Toxicol 29:83–101 Vlasblom AG (1969) A study of a population of Marinogam- marus ...
pulex but suppressed the difference in FR with E. berilloni. Although we cannot exclude the role of sample size reduction in this effect, this suggests that C. dikerogammari infection might increase the predation pressure on local prey populations in case of species replacement between D. ...
In this presented study, it was aimed to determine the effects of pesticides on non-target organisms on the freshwater amphipod, Gammarus pulex, by biochemical responses. Acute toxicity value (LC50) in G. pulex of the dimethoate pesticide was determined. The superoxide dismutase (SOD), glutathione...
23. Blockwell SJ, Pascoe D, and Taylor EJ (1996) Effects of lindane on the growth of the freshwater amphipod Gammarus pulex (L). Chemosphere 32: 1795–1803. 24. Bollache L and Cézilly F (2004) Sexual selection on male body size and assortative pairing in Gammarus pulex (Crustacea: Am...