کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2413717 1552044 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Landscape composition affects parasitoid spillover
ترجمه فارسی عنوان
ترکیبات منظره بر روی اسپاسم پارازیتویید تاثیر می گذارد
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• Landscape affects parasitoid species composition but not species richness.
• Parasitoid communities between orchards and forests were highly nested.
• Parasitoid communities between orchards and grasslands were poorly nested.
• Increasing cover of forest improves the spillover of parasitoids into apple orchards.
• Habitats with low structural contrast are likely to share more species.

The intensification of agriculture has led to a severe simplification of agricultural landscapes, resulting in a marked reduction in the diversity of insect natural enemies. However, how this simplification shapes the movement of insect parasitoids between crop and non-crop habitats (i.e., spillover) is still unclear. We examined the potential spillover of tachinid parasitoids from semi-natural habitats into apple orchards across different landscapes. We sampled commercial apple orchards localized in three landscape types (forest-, grassland- or apple-dominated landscapes) to first evaluate if landscape composition affects the local species richness in apple orchards. Second, we tested whether the contribution of forest and grassland habitats to the local tachinid community composition of apple orchards changes according to landscape composition. We found that landscape composition did not affect local tachinid species richness in apple orchards, while it affected the species spillover. Independently of the landscape, we found highly nested communities of tachinids between apple orchards and forest habitats suggesting a strong spillover of tachinids between these habitats. In contrast, tachinids in apple orchards were nested with grassland habitats only in landscapes dominated by apple orchards. Our results have important implications for the conservation of insect parasitoids in agricultural landscapes, as the spillover of species in the crop can be affected by the type and the area of semi-natural habitats in the surrounding landscape.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 208, 1 October 2015, Pages 48–54
نویسندگان
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