کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
89999 159361 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of early season and late season prescribed fires on small mammals in a Sierra Nevada mixed conifer forest
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
The effects of early season and late season prescribed fires on small mammals in a Sierra Nevada mixed conifer forest
چکیده انگلیسی

Prescribed fire is an important management tool used in the restoration of Sierra Nevada mixed conifer forests where fire has been suppressed over the last century. It is not well known, however, how the timing of prescribed fire affects wildlife populations. We used model selection and multi-model inference methods to compare the effects of early (spring and early summer) and late (late summer and fall) season prescribed fires on small mammal populations, based on 4 years of mark-recapture data collected in Sequoia National Park, California. The effects of prescribed fires on four small mammal metrics were evaluated: deer mouse (Peromyscus maniculatus) densities, deer mouse age ratios, lodgepole chipmunk (Neotamias speciosus) densities, and total small mammal biomass. For each of these four metrics, the top ranked model in the evaluation of prescribed fire treatment effects contained no prescribed fire effects, but did contain effects of strong year-to-year variation in populations. Models which predicted that fire effects differed depending on the season of fire received only limited support for each of the four metrics. Our results suggest that initial prescribed fires set during the early season will have similar impacts as late season fires on deer mouse populations, lodgepole chipmunk populations, and total small mammal biomass in Sierra Nevada mixed conifer forests.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 236, Issues 2–3, 1 December 2006, Pages 229–240
نویسندگان
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