作者: Marco Lombardini , Paolo Varuzza , Alberto Meriggi
DOI: 10.1007/S10144-017-0577-2
关键词: Population density 、 Pregnancy rate 、 Biology 、 Fecundity 、 Demography 、 Pregnancy 、 Roe deer 、 Capreolus 、 Litter (animal) 、 Seasonality 、 Ecology, Evolution, Behavior and Systematics
摘要: In many ungulates, female fecundity is influenced by weather, population density and body condition. Based on a six-year survey of the reproductive tracts adult roe deer (Capreolus capreolus) harvested in province Pisa (Tuscany, central Italy), we evaluated influence individual characteristics pregnancy rates. Eighty-five percent females were pregnant, with median litter size two (range one—three). We found that rate was positively correlated summer rainfall mass females, whereas early-winter conditions, spring rainfall, age density-dependent factors did not appear to rate. These results reflect particular seasonal variation abundance quality resources Mediterranean habitats show heavier (high-quality mothers) are more productive than lighter females.