نتایج جستجو برای: waterbirds habitat suitability

تعداد نتایج: 82694  

2014

Habitat suitability mapping highlighted (1) the influence of deep-water overwintering wetlands on suitable habitat for four of five anuran species encountered; (2) the lack of overlap between areas of core habitat for both the northern leopard frog and wood frog compared to the core habitat for both toad species; and (3) the importance of conservation programs in providing grassland components ...

Journal: :Remote Sensing 2012
Rebecca Barker Douglas J. King

Blanding’s turtle (Emydoidea blandingii) is a threatened species under Canada’s Species at Risk Act. In southern Québec, field based inventories are ongoing to determine its abundance and potential habitat. The goal of this research was to develop means for mapping of potential habitat based on primary habitat attributes that can be detected with high-resolution remotely sensed imagery. Using e...

Journal: :Ecological applications : a publication of the Ecological Society of America 2014
Luca Börger Thomas D Nudds

Understanding the effects of landscape change and environmental variability on ecological processes is important for evaluating resource management policies, such as the emulation of natural forest disturbances. We analyzed time series of detection/nondetection data using hierarchical models in a Bayesian multi-model inference framework to decompose the dynamics of species distributions into re...

2017
Ernst van der Maaten Andreas Hamann Marieke van der Maaten‐Theunissen Aldo Bergsma Geerten Hengeveld Ron van Lammeren Frits Mohren Gert‐Jan Nabuurs Renske Terhürne Frank Sterck

Bioclimate envelope models have been widely used to illustrate the discrepancy between current species distributions and their potential habitat under climate change. However, the realism and correct interpretation of such projections has been the subject of considerable discussion. Here, we investigate whether climate suitability predictions correlate to tree growth, measured in permanent inve...

Journal: :ISPRS Int. J. Geo-Information 2015
Dongmei Chen Haydi Wong Paul Belanger Kieran Moore Mary Peterson John Cunningham

Lyme borreliosis, caused by the bacterium, Borrelia burgdorferi, is an emerging vector-borne infectious disease in Canada. According to the Public Health Agency of Canada (PHAC), by the year 2020, 80% of Canadians will live in Lyme endemic areas. An understanding of the association of Ixodes scapularis, the main vector of Lyme disease, with it hosts is a fundamental component in assessing chang...

Journal: :محیط زیست طبیعی 0
مجتبی قندلی اداره کل حفاظت محیط زیست استان سمنان افشین علیزاده استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران محمود کرمی - استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد کابلی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران

kavir national park is an example of dry and desert ecosystem that is consisted of vast plains and numerous highlands. wild sheep is one of the iconic bovid in this area. understanding their habitat requirements and similarities is essential for their successful population management. we used ecological niche factor analysis approach to develop habitat suitability models for wild sheep in kavir...

Journal: :E3S web of conferences 2021

Mangrove ecosystems are vulnerable to pollution such as marine debris. The presence of debris can affect the waterbird community. present study aims determine and analyze effect on waterbirds in Muara Angke Area. research was undertaken from October November 2020 at three areas: Angke-Kapuk Protection Forest, Nature Tourism Park, Arboretum. Observations were carried out using point count method...

Journal: :محیط زیست طبیعی 0
آزیتا فراشی دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد کابلی استادیار گروه شیلات و محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران ایمان مومنی دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران

kolah ghazi national park is one of the most important habitats for wild goat in iran with a population of around 2000 heads. in order to model the habitat for this species, a presence only layer was used as input to enfa method in biomapper software. ecogeographic factors were also used as independent variables including plant community, distribution of predators, geomorphologic features, main...

2003
Brigitte A. Reutter V. Helfer A. H. Hirzel P. Vogel

Aim, Location Although the alpine mouse Apodemus alpicola has been given species status since 1989, no distribution map has ever been constructed for this endemic alpine rodent in Switzerland. Based on redetermined museum material and using the Ecological-Niche Factor Analysis (ENFA), habitat-suitability maps were computed for A. alpicola, and also for the co-occurring A. flavicollis and A. syl...

2016
Calvin Sindato Kim B. Stevens Esron D. Karimuribo Leonard E. G. Mboera Janusz T. Paweska Dirk U. Pfeiffer

BACKGROUND Despite the long history of Rift Valley fever (RVF) in Tanzania, extent of its suitable habitat in the country remains unclear. In this study we investigated potential effects of temperature, precipitation, elevation, soil type, livestock density, rainfall pattern, proximity to wild animals, protected areas and forest on the habitat suitability for RVF occurrence in Tanzania. MATER...

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