نتایج جستجو برای: seasonal habitat use

تعداد نتایج: 1845293  

2012
Raymond N. Brereton Robert J . Taylor

BRERETON, R.N. & TAYLOR, R.]., 2000 (31 :xii): Composition, seasonal occurrences and habitat use of bird assemblages in wet forests on the Central Plateau of Tasmania. Pap. Proc. R. Soc. Tasm. 134: 35·-43. ISSN 0080-4703. Nature Conservation Branch, Department of Primary Industries, Water and Environment, Hobart, Tasmania, Australia 7000 (RNM); and Forestry Tasmania, 79 Melville Street, Hobart,...

Journal: :The Journal of animal ecology 2014
Michael E Byrne J Clint McCoy Joseph W Hinton Michael J Chamberlain Bret A Collier

Accurately describing animal space use is vital to understanding how wildlife use habitat. Improvements in GPS technology continue to facilitate collection of telemetry data at high spatial and temporal resolutions. Application of the recently introduced dynamic Brownian bridge movement model (dBBMM) to such data is promising as the method explicitly incorporates the behavioural heterogeneity o...

2015
Kathryn E. Sanders Robert B. Gillespie James D. Haddock Deborah D. Ross Frank V. Paladino

Sanders, Kathryn E. M.S., Purdue University, May 2012. Relative Importance of Water Quality and Habitat to Fish Communities in Streams Influenced by Agricultural Land Use in the Cedar Creek Watershed, Indiana. Major Professor: Robert B. Gillespie. Agricultural land use has been shown to negatively impact fish communities in headwater streams that also serve as agricultural drainage ditches. The...

2013
Sonia M. Hernandez Brady J. Mattsson Valerie E. Peters Robert J. Cooper C. Ron Carroll

Coffee agroforestry systems and secondary forests have been shown to support similar bird communities but comparing these habitat types are challenged by potential biases due to differences in detectability between habitats. Furthermore, seasonal dynamics may influence bird communities differently in different habitat types and therefore seasonal effects should be considered in comparisons. To ...

Journal: :Ecology 2007
S J Mayor J A Schaefer D C Schneider S P Mahoney

Detecting habitat selection depends on the spatial scale of analysis, but multi-scale studies have been limited by the use of a few, spatially variable, hierarchical levels. We developed spatially explicit approaches to quantify selection along a continuum of scales using spatial (coarse-graining) and geostatistical (variogram) pattern analyses at multiple levels of habitat use (seasonal range,...

2006
Françoise Daverat Karin E. Limburg Isabel Thibault Jen-Chieh Shiao Julian J. Dodson François Caron Wann-Nian Tzeng Yoshiyuki Iizuka Håkan Wickström

Habitat use patterns of 3 species of temperate eels, Anguilla anguilla, A. japonica and A. rostrata, were investigated using otolith strontium:calcium ratio life history transects. Published and unpublished data from 6 sites (Canada, United States, Sweden, France, Taiwan and Japan) sampled across the geographical range of each eel species were compiled. Sr:Ca patterns indicated that the 3 speci...

Journal: :American journal of primatology 2001
J R Poulsen C J Clark T B Smith

Seasonal fluctuations in resource abundance often cause primates to change their feeding behavior and ecology. The objective of this study was to examine the response of a largely frugivorous monkey, the grey-cheeked mangabey (Lophocebus albigena), to seasonal variations in fruit abundance. We used 15-min scan sampling to quantify feeding, activity, and habitat use by monkeys between February a...

Journal: :Proceedings. Biological sciences 2014
Glenn Yannic Loïc Pellissier Maël Le Corre Christian Dussault Louis Bernatchez Steeve D Côté

Landscape heterogeneity plays a central role in shaping ecological and evolutionary processes. While species utilization of the landscape is usually viewed as constant within a year, the spatial distribution of individuals is likely to vary in time in relation to particular seasonal needs. Understanding temporal variation in landscape use and genetic connectivity has direct conservation implica...

2013
Hattie L A Bartlam-Brooks Mpaphi C Bonyongo Stephen Harris

Most large-bodied wildlife populations in sub-Saharan Africa only survive in conservation areas, but are continuing to decline because external changes influence ecological processes within reserves, leading to a lack of functionality. However, failure to understand how landscape scale changes influence ecological processes limits our ability to manage protected areas. We used GPS movement data...

2016
Alex Okiemute Onojeghuo George Alan Blackburn

Reedbeds across the UK are amongst the most important habitats for rare and endangered birds, wildlife and organisms. However, over the past century, this valued wetland habitat has experienced a drastic reduction in quality and spatial coverage due to pressures from human related activities. To this end, conservation organisations across the UK have been charged with the task of conserving and...

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