The effect of infrastructure on the invasion of a generalist predator: Pied crows in southern Africa as a case-study

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• 作者：Grant S. Joseph^a ; ^c ; ^{karoogrant@gmail.com} ; Colleen L. Seymour^a ; ^b ; ^{c.seymour@sanbi.org.za} ; Stefan H. Foord^c
• 关键词：Cape floristic region ; Corvid ; Invasive species ; Karoo ; Anthropogenic range expansion ; Southern Africa
• 刊名：Biological Conservation
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：205
• 期：Complete
• 页码：11-15
• 全文大小：360 K
• 卷排序：205

文摘

Generalist predators invade areas, aided by road-linked infrastructure and roadkill. We compared roads in three southern African countries with differing infrastructure. Crows were 20 times more abundant in the richest than poorest country. Crow numbers increased significantly more with roadkill in the richest country. Sustainable development should consider aspects of road networks that help invasion.