کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5744373 1618215 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trumpeter finches (Bucanetes githagineus) breeding at highlands have higher breeding success but a shorter breeding season
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Trumpeter finches (Bucanetes githagineus) breeding at highlands have higher breeding success but a shorter breeding season
چکیده انگلیسی


- We present breeding parameters of Trumpeter finches breeding at highlands.
- Breeding season was shorter compared to lowlands.
- Egg hatchability was higher.
- Breeding success was higher.
- No clear advantages to escape from global warming.

One of the responses of arid-land birds to ongoing climate warming is to shift their ranges towards higher altitudes to track species climatic optima. As this can influence their life history traits, more information is needed on breeding output from these border populations. We studied the breeding biology of the Trumpeter finch (Bucanetes githagineus) during three years in the center of the Saharan Atlas (ca. 1400 m a.s.l). Compared to lowland populations, breeding season was shorter and egg hatchability lower, but breeding success higher, as the main difference regarding previous studies was the lack of predation in the 23 nests we monitored. This is an advantage for this arid-land species breeding at the limit of its altitudinal range. However, in the face on future climate warming, predator ranges are also expected to shift towards higher altitudes, thus minimizing this current advantage, while breeding limitations due to harsh weather could prevail, what could compromise population viability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Arid Environments - Volume 144, September 2017, Pages 212-215
نویسندگان
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