How best to collect demographic data for population viability analysis models

a new approach to credibility premium for zero-inflated poisson models for panel data

هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...

Including behavioral data in demographic models improves estimates of population viability

tion biology attracted a great deal of attention in past years (Curio 1996; Caro 1998; Sutherland 1998). While there has been wide recognition that behavior can profoundly influence the dynamics of populations (Sutherland 1996; Houston and McNamara 1997), empirical research linking behavior to demography is sparse (Anholt 1997; Levin et al. 2000). Furthermore, a framework for applying behaviora...

How to Collect High-Quality Data Cost-Effectively

Assessing population viability while accounting for demographic and environmental uncertainty.

Predicting the future trend and viability of populations is an essential task in ecology. Because many populations respond to changing environments, uncertainty surrounding environmental responses must be incorporated into population assessments. However, understanding the effects of environmental variation on population dynamics requires information on several important demographic parameters ...

Looking for energy in demographic data; how to detect self-organization in human population distribution

In the present work we study the relationship between population allocation and the combined effects of urban size and energy consumption, for two given areas and through a major part of the twentieth century. Along these lines a general application model is laid down which relates city-growth rates to initial inhabitants and to exosomatic energy increment, the deviations from it showing order ...