文章基本信息

标题：Introduction, Establishment, and Invasion of Digitonthophagus gazella (Fabricius, 1787) (Coleoptera: Scarabaeinae) in the Savannas of Venezuela and Colombia
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作者：Jorge Ari Noriega ; Oona Delgado ; Joffre Isnar Blanco 等
期刊名称：Natural Resources
印刷版ISSN：2158-706X
电子版ISSN：2158-7086
出版年度：2017
卷号：08
期号：05
页码：370-381
DOI：10.4236/nr.2017.85023
语种：English
出版社：Scientific Research Publishing
摘要：The invasion process involves overcoming certain barriers with negative effects on the biodiversity and ecosystem function. This is the case of the African dung beetle Digitonthophagus gazella, which was introduced in the United States and other countries in Central and South America to help in dung removal activity. The distribution of D. gazella has been documented in the Americas, but in Venezuela there is little information. Trying to understand the process of invasion of the Colombian-Venezuelan savannas and measure their potential impact, the information stored in collections and literature was collected. Five new state records were reported for Venezuela, as well as four scenarios of the process of introduction and establishment of this species in the region. Although the amount of records has increased, the number of individuals sampled is still incipient. The possible areas of invasion and the potential negative effects that the presence of this species exerts in these regions are also discussed. In addition, potential areas of invasion and negative effects of this species are discussed. Results emphasize the importance of generating models of the invasive process in order to design programs that monitor the effects incurred by the presence of D. gazella on native species and propose control and mitigation mechanisms.
关键词：Anthropic Introduction;Biodiversity;Dung Beetles;Invasive Species;Scarabaeidae