Male reproductive patterns in hibernating bats
نویسندگان
چکیده
منابع مشابه
Patterns of reproductive effort in male ungulates
In ungulates, males and females have contrasting life histories, as usually only the females raise the young. How reproductive effort in males varies with individual level and population level characteristics has received little attention in the literature. Using published information on direct (weight loss during the rut) and indirect (rutrelated changes in activity budgets, fighting frequency...
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Ecological pressure paired with opportunism can lead to surprising innovations in animal behaviour. Here, we report predation of great tits (Parus major) on hibernating pipistrelle bats (Pipistrellus pipistrellus) at a Hungarian cave. Over two winters, we directly observed 18 predation events. The tits specifically and systematically searched for and killed bats for food. A substantial decrease...
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Many species hibernate to conserve energy during periods of low food and water availability. It has long been assumed that the optimal hibernation strategy involves long, deep bouts of torpor that minimize energy expenditure. However, hibernation has ecological (e.g. decreased predator avoidance) and physiological (e.g. sleep deprivation) costs that must be balanced with energy savings; therefo...
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Knowledge of bat population dynamics in tropical South America is quite limited. Information concerning bat reproduction is based primarily upon temperate zone species where, due to climatic restrictions, reproductive cycles are short in duration and presumed to be regulated by abiotic variables (Racey, 1982; Tuttle and Stevenson, 1982; Wilson, 1979). As a consequence, temperate bats are limite...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1979
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0560317