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Flueck,Werner T. |
Red deer (Cervus elaphus) were introduced to Patagonia in the 1920´s and have reached high densities in certain areas of the forest-steppe ecotone. Severe drought conditions during summer/autumn of 1999 were suspected to have an impact on reproduction of red deer. Necropsies of 50 adult females revealed a pregnancy rate of only 56% as compared to 98% in 1992-1998 or 100% in 1996-1997 in other population. The age distribution of pregnant females reflected the importance of not having been pregnant during the previous cycle. The primiparous 2 year-old females had a 77% pregnancy rate, whereas none of the lactating females were pregnant. Normally, a higher reproductive success occurs for middle age classes, thereby reducing the chances of becoming pregnant... |
Tipo: Info:eu-repo/semantics/article |
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Ano: 2001 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2001000100004 |
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