کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9443502 | 1617581 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simulation of annual productivity and long-term population trends of white-winged doves in the Tamaulipan Biotic Province
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
We present a model that synthesizes decades of field data on white-winged doves (Zenaida asiatica asiatica; WWDO) in the Tamaulipan Biotic Province. The model is represented as a discrete-time, deterministic compartment model based on difference equations with a one-week time step designed to simulate annual productivity and long-term trends in abundance. We evaluated the model by comparing simulated annual productivity and long-term population trends to field data. Based on simulation results, we identified apparent inconsistencies in the database; we could not generate the observed annual production index with the model parameterized based on field nest success and survivorship data, nor could we generate a stable long-term population trend with the model parameterized based on suggested sustainable harvest rates and empirically-based estimates of migratory return rates. Simulation results suggest that nest success might be closer to 22% (rather than 35%). A similar trend resulted when simulated hunting pressure was increased by 25% (to 31%), or return rates of migrating juveniles and adults were decreased by 5.5 and 5.0%, to 69 and 77%, respectively, with all other values at the baseline level. For these reasons, until better estimates of nest success and migratory return rates are available, model predictions must be viewed with caution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 181, Issues 2â3, 20 January 2005, Pages 149-159
Journal: Ecological Modelling - Volume 181, Issues 2â3, 20 January 2005, Pages 149-159
نویسندگان
Cristina A. Martinez, W.E. Grant, Sallie J. Hejl, Markus J. Peterson, Alfonso Martinez, Gary L. Waggerman,