کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8868540 1622105 2017 45 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Individual host taxa may resist the climate-mediated trend in herbivory: Cenozoic herbivory patterns in western North American oaks
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Individual host taxa may resist the climate-mediated trend in herbivory: Cenozoic herbivory patterns in western North American oaks
چکیده انگلیسی
Examination of leaves from thirteen floras from the western United States shows that neither mean annual temperature nor average precipitation was a significant determinant of overall insect damage. However, herbivory made by endophagous insects (gallers and leaf miners) was more prevalent in dry conditions. Temperature also was a significant determinant of gall and leaf mine damage; warmer floras tended to have more galls and fewer leaf mines. In addition, gallers and leaf miners show a high degree of host-fidelity through time. This pattern of host-fidelity suggests that feeding of endophagous insect herbivores is more climatically sensitive than that of more generalized, exophagous herbivores, and that future climatic change may not affect all host-herbivore systems, nor all herbivores within a single host system, in the same ways. Therefore, an increase in outbreaks of specialized insects on their hosts may be more likely than broadly increased herbivory as global temperatures increase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 487, 1 December 2017, Pages 15-24
نویسندگان
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