نتایج جستجو برای: human habitat

تعداد نتایج: 1688234  

1999
JIANGUO LIU ZHIYUN OUYANG WILLIAM W. TAYLOR RICHARD GROOP YINGCHUN TAN HEMING ZHANG

To address the complex interactions between humans and wildlife habitat, we developed a conceptual framework that links human factors with forested landscapes and wildlife habitat. All the components in the framework are integrated into systems models that analyze the effects of human factors and project how wildlife habitat would change under different policy scenarios. As a case study, we app...

Habitat analysis using landscape metrics can be efficient in better management of habitat. As a critically endangered subspecies, the Baluchistan black bear is scattered in the Bahr Asman and Zaryab areas in Kerman province. The purpose of this study was to model the distribution of the sub-species and evaluate the quality of its habitat patches, using landscape metrics. Distribution modeling w...

2013
K. J. Anlauf D. W. Jensen K. M. Burnett D. P. Larsen J. C. FIRMAN B. E. FEIST D. P. LARSEN

1. The distribution and composition of in-stream habitats are reflections of landscape scale geomorphic and climatic controls. Correspondingly, Pacific salmon (Oncorhynchus spp.) are largely adapted to and constrained by the quality and complexity of those in-stream habitat conditions. The degree to which lands have been fragmented and managed can disrupt these patterns and affect overall habit...

Journal: :Journal of theoretical biology 2010
Elodie Briefer Tomasz S Osiejuk Fanny Rybak Thierry Aubin

In songbirds, song complexity and song sharing are features of prime importance for territorial defence and mate attraction. These aspects of song may be strongly influenced by changes in social environment caused by habitat fragmentation. We tested the hypothesis that habitat fragmentation induced by human activities influences song complexity and song sharing in the skylark, a songbird with a...

Journal: :Geospatial health 2007
Agustin Estrada-Peña José M Venzal

A framework to evaluate the impact of ticks on human health under various scenarios of climate change is proposed. The purpose is not to provide a comprehensive plan (e.g. the economic impact of ticks on human society is not included), instead we wish to describe a series of indices that would be helpful by obtaining homogeneous comparisons of impact and vulnerability exerted by ticks in differ...

Journal: :Bulletin of environmental contamination and toxicology 2011
Cari-Ann Hayer Steven R Chipps James J Stone

Elevated mercury concentration has been documented in a variety of fish and is a growing concern for human consumption. Here, we explore the influence of physiochemical and watershed attributes on mercury concentration in walleye (Sander vitreus, M.) from natural, glacial lakes in South Dakota. Regression analysis showed that water quality attributes were poor predictors of walleye mercury conc...

2010
Li An Jianguo Liu

The practice of family planning has a long history, but its environmental implications have not often been considered. Using data from Wolong Nature Reserve for the conservation of the world-famous giant pandas in China, we employ a spatially explicit agent-based model to simulate how family-planning and other fertility-related decisions may affect human population, household number, and panda ...

Journal: :Molecular biology and evolution 2008
Benjamin N Sacks Danika L Bannasch Bruno B Chomel Holly B Ernest

The tendency for individuals to disperse into habitat similar to their natal habitat has been observed in a wide range of species, although its population genetic consequences have received little study. Such behavior could lead to discrete habitat-specific population subdivisions even in the absence of physical dispersal barriers or habitat gaps. Previous studies of coyotes have supported this...

Journal: :journal of arthropod-borne diseases 0
narges sharifinia department of public health, school of health, ilam university of medical sciences, ilam, iran iman gowhari department of biology, payam-e-noor university, ilam branch, ilam, iran manijeh hoseiny-rad department of biology, farhangian university, tehran, iran ali ashraf aivazi department of public health, school of health, ilam university of medical sciences, ilam, iran

background: scorpions’ stings and their own mortalities place them among the most important health and medical problems. the dreadful features and especially their poisonous stings are considered a major cause of human stress and abhorrence/phobia. the current study aimed to study the scorpion fauna of ilam province, south western iran in order to manage scorpionism related problems. methods: i...

Centaurea glastifolia, a plant species from the Asteraceae family, is distributed in the Northwest of Iran. This study carried out to determine suitable habitats and habitat connectivity of Centaurea glastifolia in three Provinces of West Azarbayejan, East Azarbayejan and Ardabil. Seven habitat variables and 36 presence points were selected for habitat modelling using six habitat distribution m...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید