کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2414492 1552094 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Field scale organic farming does not counteract landscape effects on butterfly trait composition
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Field scale organic farming does not counteract landscape effects on butterfly trait composition
چکیده انگلیسی

We tested how dispersal capacity, host plant specificity and reproductive rate influenced the effects of farming system and landscape composition on butterfly species richness and abundance. In no case did variation in these traits explain species responses to organic farming, indicating that all species benefit equally. In contrast, butterflies with high mobility and reproductive rate were disproportionally more abundant in landscapes dominated by arable land, and the species richness of butterflies with low mobility tended to decrease with increasing proportion of arable land whereas those of high mobility remained fairly constant. Hence, although organic farming increased biodiversity, it did not counteract landscape effects on butterfly trait composition. As a trait dependent loss of biodiversity may result in a larger decline of functional trait diversity compared to species diversity, these results imply that organic farming may not increase or restore functional agro-ecosystem diversity. Information provided by species traits, rather than biodiversity per se, may provide important information for successful revisions of future agri-environment schemes.


► Butterflies benefited from organic farming regardless of species trait.
► Landscape context affected butterfly trait composition regardless of farming system.
► Mobile and fast-reproducing species were more common in homogeneous arable landscapes.
► Organic farming may not increase or restore functional agro-ecosystem diversity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 158, 1 September 2012, Pages 66–71
نویسندگان
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