کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4394061 1305517 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temporal and spatial patterns of tenebrionid beetle diversity in NW Patagonia, Argentina
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Temporal and spatial patterns of tenebrionid beetle diversity in NW Patagonia, Argentina
چکیده انگلیسی

Spatial and temporal variation in abundance, richness and composition of Tenebrionidae beetle assemblages were described for north-western Patagonia. Beetles were collected using 450 pitfall traps arranged in 50 plots across an area of about 22,500 km2 representative of the Subantarctic-Patagonian transition of Argentina. The study area included three different habitats: forest, scrub, and steppe. Beetles were trapped at five, eight day sampling periods in spring-summer between November 2004 and March 2006. A total of 30 species and 938 individuals were collected. Total abundance was higher in November and January than in March, and species richness did not change among samplings. Species richness was greater in the steppe than scrub. Assemblages differed between the northern and southern transects. There was little correlation between the measured environmental variables and species composition. Historical factors might explain the observed patterns, but other environmental variables such as soil characteristics may be more informative in explaining the present distribution of tenebrionid species.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Arid Environments - Volume 73, Issue 12, December 2009, Pages 1095–1102
نویسندگان
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