A better way to estimate population trends
نویسندگان
چکیده
J.-Y. Humbert ([email protected]) and L. S. Mills, Wildlife Biology Program, College of Forestry and Conservation, Univ. of Montana, Missoula, MT 59812, USA. Present address for JYH: Agricultural Landscapes and Biodiversity, Agroscope Reckenholz-Tänikon Research Station ART, Reckenholzstrasse 191, CH-8046 Zurich, Schwitzerland. J. S. Horne and B. Dennis, Dept of Fish and Wildlife Resources, Univ. of Idaho, Moscow, ID 83844-1136, USA.
منابع مشابه
The analysis of residuals variation and outliers to obtain robust response surface
In this paper, the main idea is to compute the robust regression model, derived by experimentation, in order to achieve a model with minimum effects of outliers and fixed variation among different experimental runs. Both outliers and nonequality of residual variation can affect the response surface parameter estimation. The common way to estimate the regression model coefficients is the ordinar...
متن کاملEpidemiology and trend of stomach cancer mortality in Iran
Background and aims: Stomach cancer is one of the most common cancers and the second cause of deaths among cancers worldwide cancer in the world. This study aimed to estimate the rate and trend of death from stomach cancer in Iranian population between 2006 and 2010. Methods: This study was a cross-sectional conducted using mortality data in Iranian popul...
متن کاملEstimation of genetic and phenotypic trends for body weight traits of sheep in Guilan province of Iran
The main objective of the present study was to estimate genetic and phenotypic trends for body weight traits in Guilan province sheep. Traits included were birth weight (BW, n=14,549), 3-month weight (3MW, n=13,109) and 6-month weight (6MW, n=10,141). Data and pedigree information used in this study were collected during 1994 to 2011 by the Agricultural Organization of Guilan province in Iran. ...
متن کاملApplying Fuzzy Logic to the Estimation of Environmental Degradation Trends in Iran
During recent years several attempts have been made to incorporate environmental and natural resources degradation into national accounts. GNP as measured by the traditional system of national accounts does not consider environmental degradation caused by inefficient exploitation of natural resources. While the complete omission of environmental impacts is not possible, there could be an optima...
متن کاملبرآورد بارش بیشینه محتمل 24 ساعته با رویکرد تغییرات مکانی در حوزه های جنوبی استان کهگیلویه و بویراحمد
To design water constructs, such as spillways, canals and many other water structures one needs to estimate probable maximum precipitation (PMP). Since climate variability and spatial variations affect PMP estimation selection of proper statistical method, which provides better estimation is important. Based on general frequency equation, Hirschfield method has been proposed for this purpose, b...
متن کامل