Relationships Between an Introduced and Two Native Dung Beetle Species (Coleoptera: Scarabaeidae) in Georgia
Relationships Between an Introduced and Two Native Dung Beetle Species (Coleoptera: Scarabaeidae) in Georgia
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乔治亚州引进的粪甲虫与两种本土粪甲虫（鞘翅目：金龟子科）之间的关系
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
O. P. Young
中科院分区：
文献类型：
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作者：
O. P. Young
摘要野外采集，实验室观察和实验，进行了蒂夫特县，GA，以确定可能的相互作用之间的三个最丰富的物种的夜间金龟子甲虫。光诱数据表明，小Copris minutus主要发生在冬季和春季，Ateuchus histeroides主要发生在春季和夏季，Onthophagus gazella主要发生在夏季和秋季。其中一个种O.瞪羚是从国外引进的，比较实验室的食物获取实验表明，该物种具有优越的上级能力，能够从土壤表面获取和清除粪便。对抗实验也证明了O.瞪羚一项食物选择实验表明，O.比其他两个物种。两个本地物种的未来前景的影响进行了讨论。
Abstract Field collections, and laboratory observations and experiments, were conducted in Tift County, GA, to determine possible interactions among the three most abundant species of nocturnal scarab dung beetles. Light-trap data indicated that Copris minutus occurred primarily in the winter and spring, Ateuchus histeroides in the spring and summer, and Onthophagus gazella in the summer and fall. One of the species, O. gazella, is a foreign introduction, and comparative laboratory food procurement experiments revealed the superior ability of this species to obtain and remove dung from the soil surface. A confrontation experiment also demonstrated the behavioral dominance of O. gazella. A food-choice experiment indicated a more restricted diet for O. gazella than for the other two species. Implications for the future prospects of the two native species are discussed.