کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6543576 | 159214 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spatial interactions between storm damage and subsequent infestations by the European spruce bark beetle
ترجمه فارسی عنوان
تعاملات فضایی بین آسیب توفان و آلودگی های بعدی توسط سوسک صنوبر اروپایی
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی
Disturbances such as storm damage and bark beetle infestations are key factors for the development of forest ecosystems. Infestations of the European spruce bark beetle (Ips typographus), which is the most devastating biotic disturbance agent in forests of central Europe and Scandinavia, are often triggered by storm damage. However, our understanding of spatio-temporal bark beetle dynamics at fine scales is still limited. In order to assess future risks of I. typographus infestations, we analyzed spatial interactions of the infestation pattern in a 180Â km2 study region in central Switzerland. We computed neighborhood characteristics of bark beetle dispersal and fitted Poisson models to the spatial point patterns of bark beetles and storm damages. Infestations of I. typographus were found to be clustered at short distances (<500Â m). In contrast, the spatial distribution of storm damages followed an inhomogeneous Poisson distribution that was explained by environmental covariates. Increasing topographic exposure, south- and west-facing slopes as well as increasing proportions of Norway spruce enhanced the probability of storm damage and bark beetle infestations. Our study is a contribution towards quantifying important ecological drivers in a spatially explicit manner that helps assessing predisposing factors for future bark beetle infestations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 318, 15 April 2014, Pages 167-174
Journal: Forest Ecology and Management - Volume 318, 15 April 2014, Pages 167-174
نویسندگان
Golo Stadelmann, Harald Bugmann, Beat Wermelinger, Christof Bigler,