نتایج جستجو برای: potential habitats

تعداد نتایج: 1091610  

2017
Bin Wang Yu Xu Jianghong Ran

Understanding the distribution and the extent of suitable habitats is crucial for wildlife conservation and management. Knowledge is limited regarding the natural habitats of the Chinese monal (Lophophorus lhuysii), which is a vulnerable Galliform species endemic to the high-montane areas of southwest China and a good candidate for being an umbrella species in the Qionglai Mountains. Using ecol...

Journal: :Journal of vector borne diseases 2012
Elizabeth Omukunda Andrew Githeko Millicent F Ndong A Emmanuel Mushinzimana Guiyun Yan

BACKGROUND & OBJECTIVES Malaria resurgence in highland regions of East Africa has been on increase. The spatio-temporal distribution of larval habitats of malaria vectors determines the distribution of adult vectors, hence, disease transmission. Vector's ecology is necessary for strategic vector control through effective plan for source reduction. Mapping of the larval habitats is necessary for...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2008
Guozhen Shen Chaoyang Feng Zongqiang Xie Zhiyun Ouyang Junqing Li Marty Pascal

The giant panda (Ailuropoda melanoleuca), is one of the world's most endangered species. Habitat loss and fragmentation have reduced its numbers, shrunk its distribution, and separated the population into isolated subpopulations. Such isolated, small populations are in danger of extinction due to random demographic factors and inbreeding. We used least-cost modeling as a systematic approach to ...

2016
Jennifer K. Fortin Karyn D. Rode Grant V. Hilderbrand James Wilder Sean Farley Carole Jorgensen Bruce G. Marcot Daniel E Crocker

Increased popularity of recreational activities in natural areas has led to the need to better understand their impacts on wildlife. The majority of research conducted to date has focused on behavioral effects from individual recreations, thus there is a limited understanding of the potential for population-level or cumulative effects. Brown bears (Ursus arctos) are the focus of a growing wildl...

2013
Christine A. Bahlai Manuel Colunga-Garcia Stuart H. Gage Douglas A. Landis

Aphidophagous coccinellids (ladybeetles) are important providers of herbivore suppression ecosystem services. In the last 30 years, the invasion of exotic coccinellid species, coupled with observed declines in native species, has led to considerable interest in the community dynamics and ecosystem function of this guild. Here we examined a 24-year dataset of coccinellid communities in nine habi...

2012
Noboru Minakawa Gabriel O. Dida George O. Sonye Kyoko Futami Sammy M. Njenga

The prevalence of malaria among the residents of the Lake Victoria basin remains high. The environment associated with the lake may maintain a high number of malaria vectors. Lake habitats including water hyacinths have been suspected to be the source of vectors. This study investigated whether malaria vectors breed in the lake habitats and adjacent backwater pools. Anopheline larvae were colle...

Currently, conservation planning based on the future distribution of species is among the most important adaptive conservation approaches to reduce the  negative impacts of climate change on species. In this study, by adapting an ensemble modelling approach, scenarios of RCP 2.6 and RCP 8.5 and five global circulation models,  the distribution of Goitered gazelle (Gazellea subgutturosa) under c...

A new method to quantify, monitore and assess ecological structures and functions is the application of graph theory. In ecology, this theory demonstrates its suitable application in assessment of ecological connectivity. Connectivity is the structural attribute of landscape which facilitates the species movement among their habitats. Using graph theory, this paper aims to assess the connectivi...

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