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原文連結
論文資訊
- 類型：已發表論文
- 日期：2021-03-03
摘要
Introduced 捕食者s currently threaten endemic animals on Madagascar through predation, facilitation of human-led hunts, competition, and 疾病 傳播, but the antiquity and past consequences of these introductions are poorly known. We use radiocarbon and stable carbon and nitrogen isotope data from the bone collagen of introduced dogs (Canis familiaris) and endemic fosa (Cryptoprocta spp.) in central and southern Madagascar to test for competition between introduced and endemic 捕食者s. Isotopic evidence indicates little overlap in diet between ancient dogs and fosa in these regions but leaves open the possibility that dogs competitively exclude fosa. Radiocarbon dates confirm that dogs have been present on Madagascar for at least a millennium and suggest that they briefly co-occurred with the island’s
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