نتایج جستجو برای: seasonal habitat use

تعداد نتایج: 1845293  

2017
Zerihun Girma Yosef Mamo Girma Mengesha Ashok Verma Tsyon Asfaw

The habitat use and seasonal migratory pattern of birds in Ethiopia is less explored as compared to diversity studies. To this end, this study aimed at investigating the patterns of distribution related to seasonality and the effect of habitat characteristics (elevation, slope, and average vegetation height) on habitat use of birds of Wondo Genet Forest Patch. A stratified random sampling desig...

2017
Damber Bista Saroj Shrestha Peema Sherpa Gokarna Jung Thapa Manish Kokh Sonam Tashi Lama Kapil Khanal Arjun Thapa Shant Raj Jnawali

In Nepal, the red panda (Ailurus fulgens) has been sparsely studied, although its range covers a wide area. The present study was carried out in the previously untapped Chitwan-Annapurna Landscape (CHAL) situated in central Nepal with an aim to explore current distributional status and identify key habitat use. Extensive field surveys conducted in 10 red panda range districts were used to estim...

2014
Jeffrey L. Beck Kurt T. Smith Jerran T. Flinders Craig L. Clyde

—Understanding anthropogenic and environmental factors that influence seasonal habitat selection is criti cal in establishing conservation objectives for wildlife populations. However, many resource selection studies provide inferences only for single seasons, potentially masking factors essential to populations during other times of the year. Our objective was to model elk (Cervus elaphus) hab...

2009
Li Li Ling Bian Laith Yakob Guofa Zhou Guiyun Yan

BACKGROUND Localized mosquito larval habitat management and the use of larvicides have been proposed as important control tools in integrated malaria vector management programs. In order to optimize the utility of these tools, detailed knowledge of the spatial distribution patterns of mosquito larval habitats is crucial. However, the spatial and temporal changes of habitat distribution patterns...

2002
Judy Hamilton Brenda Konar

Abst r ac t —Understanding the interactions between kelp beds and nearshore fish is essential because anthropogenic changes and natural variability in these beds may affect available habitat for fishes. In this study fish communities were investigated in south-central Alaska kelp beds characterized by a range of substrate complexity and varying densities of both perennial understory kelps and a...

Journal: :SIAM Journal of Applied Mathematics 2011
Yu Jin Mark A. Lewis

The critical domain size problem determines the size of the region of habitat needed to ensure population persistence. In this paper we address the critical domain size problem for seasonally fluctuating stream environments and determine how large a reach of suitable stream habitat is needed to ensure population persistence of a stream-dwelling species. Two key factors, not typically found in c...

2008
DAMON B. LESMEISTER MATTHEW E. GOMPPER

Since the 1940s, eastern spotted skunks (Spilogale putorius) have declined dramatically throughout the Midwest. One hypothesis for the decline is the loss of suitable habitat, although little is known about the ecological requirements of this species. To elucidate seasonal home range and habitat selection by eastern spotted skunks, we conducted telemetry-based field work in the Ouachita Mountai...

2014
Vicencio Oostra Paul M Brakefield Yvonne Hiltemann Bas J Zwaan Oskar Brattström

Many organisms display phenotypic plasticity as adaptation to seasonal environmental fluctuations. Often, such seasonal responses entails plasticity of a whole suite of morphological and life-history traits that together contribute to the adaptive phenotypes in the alternative environments. While phenotypic plasticity in general is a well-studied phenomenon, little is known about the evolutiona...

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