کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9472054 | 1321157 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Predation and cannibalism of lady beetle eggs by adult lady beetles
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The introduced lady beetle Harmonia axyridis now occurs across much of North America. This species is a strong intraguild competitor that may negatively impact local populations of native Coccinellidae. A laboratory examination of coccinellid egg predation, including cannibalism, revealed that eggs of two native species, Coleomegilla maculata and Olla v-nigrum, had significantly higher egg predation than did H. axyridis eggs. The addition of an alternative food source reduced egg cannibalism and predation. However, in the absence of an alternative food source, both native species attacked exotic eggs less than native eggs whereas, the exotic H. axyridis attacked all egg species similarly. This laboratory study shows that under conditions of low food availability, native coccinellid eggs would suffer from both cannibalism and predation whereas, cannibalism would be the larger threat to H. axyridis eggs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biological Control - Volume 34, Issue 2, August 2005, Pages 159-164
Journal: Biological Control - Volume 34, Issue 2, August 2005, Pages 159-164
نویسندگان
Ted E. Cottrell,