کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8490324 | 1552231 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A quantitative test of the 'economic' and 'optimal' models of escape behaviour
ترجمه فارسی عنوان
تست کمی از مدل های "اقتصادی" و "بهینه" فرار از رفتار
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
Two theoretical models, the 'economic' and the 'optimal' model, have been proposed to explain how the fitness of prey changes in relation to flight initiation distance (FID): the distance between predator and prey when the prey initiates escape. Both hypotheses assume that the cost for the prey of remaining foraging (=capture by a predator) influences their decision to escape and this cost should decrease as FID increases. Much qualitative research supports this prediction; however, no quantitative estimate of the cost of escape behaviour exists. Here, we used a seminatural experiment on predator-prey interactions using the black field cricket, Teleogryllus commodus, as prey. We quantified the probability of survival of the prey as an ecological proxy of the cost of remaining at the foraging patch, and the FID of crickets at four different starting distances. The shape of the curve for the prey's cost of remaining foraging for the 'economic' model graphically fits the cost of staying in the patch most closely. The shape of the curve of survival of the prey, as proposed by the 'optimal model', is also appropriate, but the equation that best represents this curve is quadratic rather than exponential as suggested by the model mentioned.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Behaviour - Volume 97, November 2014, Pages 221-227
Journal: Animal Behaviour - Volume 97, November 2014, Pages 221-227
نویسندگان
Patricio A. Lagos, Luis A. Ebensperger, Marie E. Herberstein,