نتایج جستجو برای: potential habitat

تعداد نتایج: 1113390  

Journal: :Diversity & distributions 2012
Bret A Collier Julie E Groce Michael L Morrison John C Newnam Andrew J Campomizzi Shannon L Farrell Heather A Mathewson Robert T Snelgrove Raymond J Carroll Robert N Wilkins

AIM: Our objective was to identify the distribution of the endangered golden-cheeked warbler (Setophaga chrysoparia) in fragmented oak-juniper woodlands by applying a geoadditive semiparametric occupancy model to better assist decision-makers in identifying suitable habitat across the species breeding range on which conservation or mitigation activities can be focused and thus prioritize manage...

2012
Lauren L. Pinault Fiona F. Hunter

Larval habitat for three highland Anopheles species: Anopheles albimanus Wiedemann, Anopheles pseudopunctipennis Theobald, and Anopheles punctimacula Dyar and Knab was related to human land uses, rivers, roads, and remotely sensed land cover classifications in the western Ecuadorian Andes. Of the five commonly observed human land uses, cattle pasture (n = 30) provided potentially suitable habit...

Journal: :Journal of medical entomology 2006
Li Zou Scott N Miller Edward T Schmidtmann

Potential larval habitats of the mosquito Culex tarsalis (Coquillett), implicated as a primary vector of West Nile virus in Wyoming, were identified using integrated remote sensing and geographic information system (GIS) analyses. The study area is in the Powder River Basin of north central Wyoming, an area that has been undergoing a significant increase in coalbed methane gas extractions since...

فاخران, سیما, فرهمند, مریم, مرادی, حسین, مکی, تکتم, ایروانی, مجید ,

Development of roads through protected areas and ecological sensitive regions can have catastrophic effects on wildlife. In Iran, road construction in sensitive habitats and protected areas has been expanding during the past decades. This study focuses on the ecological impacts of Isfahan’s west ringway, which passes through Ghamishloo wildlife refuge, I.U.C.N category IV, in Isfahan Province. ...

2009
AlexAndre H. Hirzel

Habitat suitability (HS) modeling relates a species’ potential presence/absence to a set of environmental variables. because of stochastic or demographic population fluctuations, relating abundance to environment is difficult and generally requires time-series of population-density data. Here, I propose an approach to compute relative capacity of a set of habitat classes. I defined relative cap...

2014
Erin Coulter Riordan Philip W. Rundel

Given the rapidly growing human population in mediterranean-climate systems, land use may pose a more immediate threat to biodiversity than climate change this century, yet few studies address the relative future impacts of both drivers. We assess spatial and temporal patterns of projected 21(st) century land use and climate change on California sage scrub (CSS), a plant association of consider...

2000
John Crawford Mike Gregg Richard F. Miller

Sage grouse (Centrocercus urophasiamus) occur in regions that are spatially diverse and temporally dynamic in western North America. During the past 130 years, significant changes in disturbance regimes have affected their habitat. Plant communities in existence today are unique from any other time period because of altered disturbance regimes, confounded by a continual change in climate. In so...

Journal: :Ecological applications : a publication of the Ecological Society of America 2006
Néstor Fernández Miguel Delibes Francisco Palomares

Conservation of endangered species requires comprehensive understanding of their distribution and habitat requirements, in order to implement better management strategies. Unfortunately, this understanding is often difficult to gather at the short term required by rapidly declining populations of many rare vertebrates. We present a spatial habitat modeling approach that integrates a molecular t...

Journal: رستنیها 2009
M. SAEEDIFARD, M.N. PADASHT DEHKAIE S.M. HOSSEINI

The aim of this study was modelling the spatial distribution ofLilium ledebourii (Baker) Boiss. based on ecological characteristics, in order to predict potential habitats for conservation of a rare plant. Knowledge of the spatial distributions of rare and threatened species and the underlying ecological factors plays an important role in regional conservation assessments and development planni...

2004
Tatiana V. Loboda Tatiana Loboda

Forests of the Russian Far East, designated by UNESCO as a World Heritage site and home to the Siberian tiger a highly endangered species with approximately 350 adult tigers remaining in the wild, are severely threatened by wildland fires. The frequency of catastrophic fire events is predicted to rise due to global warming trends. The large size and mountainous terrain of the study area and gov...

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