Heritable and experiential effects on boldness in a tropical poeciliid
نویسندگان
چکیده
منابع مشابه
Size matters: a test of boldness in eight populations of the poeciliid Brachyraphis episcopi
Individual variation in behaviour within populations may be explained in part by demographics and longterm, stable individual psychological differences. We examined the relation between boldness (taken as the time to emerge from a shelter and explore a novel environment) and body size in eight populations of the poeciliid Brachyraphis episcopi originating from sites upstream and downstream of w...
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critical period effects in foreign language learning:the influence of maturational state on the acquisition of reading,writing, and grammar in english as a foreign language
since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...
15 صفحه اولCorrelation between Boldness and Body Mass in Natural Populations of the Poeciliid Brachyrhaphis episcopi
The boldness of individual Brachyrhaphis episcopi, collected from regions of high and low predation, was investigated using two independent assays: (1) the time to emerge from cover and (2) the propensity to leave shoal mates and investigate a novel object. A strong correlation between the two assays was revealed such that fish that emerged from shelter sooner were also more likely to approach ...
متن کاملa study on rate making and required reserves determination in reinsurance market: a simulation
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ژورنال
عنوان ژورنال: Behavioral Ecology and Sociobiology
سال: 2007
ISSN: 0340-5443,1432-0762
DOI: 10.1007/s00265-007-0458-3