Results 71 to 80 of about 71,081 (323)

Monitoring wildlife using long‐endurance solar‐electric UAVs

open access: yesWildlife Biology, EarlyView.
This report discusses the effectiveness of using small solar‐electric UAV (uncrewed aerial vehicles) for aerial wildlife monitoring. We review four years of aerial wildlife monitoring missions using a 5.5‐m wingspan, solar‐electric UAV that was equipped with a gimballed IR/RGB camera.
Götz Bramesfeld   +3 more
wiley   +1 more source

Estimation of arboreal lichen biomass available to woodland caribou in Hudson Bay lowland black spruce sites

open access: yesRangifer, 2003
An arboreal lichen index to be utilized in assessing woodland caribou habitat throughout northeastern Ontario was developed. The "index" was comprised of 5 classes, which differentiated arboreal lichen biomass on black spruce trees, ranging from maximal ...
Sarah K. Proceviat   +2 more
doaj   +1 more source

Mating strategies of woodland caribou: Rangifer tarandus caribou

open access: yes, 1986
Mating behavior of woodland caribou, Rangifer tarandus caribou, was studied in populations from contrasting environments that were expected to influence reproductive tactics. A small population of caribou on Brunette Island (Newfoundland) lived at high density in mostly open habitat, without predators.
openaire   +2 more sources

That woodland Caribou were released during the anthropause from a ‘landscape of fear’ caused by heli‐skiing is not supported by available evidence

open access: yesAnimal Conservation
The disruption in socio-economic activity during the COVID-19 pandemic, commonly labeled the “ anthropause, ” provided an opportunity to observe the effects of a pause in human-related activities on ecological systems ...
Steven F. Wilson
semanticscholar   +1 more source

National recovery strategy for woodland caribou (Rangifer tarandus caribou), boreal population, in Canada

open access: yesRangifer, 2007
Recovery planning for the boreal population of woodland caribou is a complex task, spanning eight Canadian provinces and territories. To accommodate unique situations across the country, recovery planning for this Species at Risk Act-listed threatened ...
Dave Hervieux
doaj   +1 more source

Do Land Markets Anticipate Regulatory Change? Evidence from Canadian Conservation Policy

open access: yes, 2016
Regulation often evolves, and affected consumers or firms may adjust their behavior in anticipation of potential changes to regulation. Using shifting land use regulation boundaries and oil lease prices from Canada, we estimate the effect of anticipated ...
Boskovic, Branko, Nøstbakken, Linda
core   +1 more source

Comparative Trends of Sociality Among Terrestrial Carnivores: A Multivariate Analysis 陆生食肉动物社会性的比较趋势:一项多变量分析

open access: yesWildlife Letters, EarlyView.
In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward   +3 more
wiley   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

PART B: 5th American Caribou Workshop, 19-21 March 1991, Yellowknife, Northwest Territories, Canada.

open access: yesRangifer, 1991
The 5th American Caribou Workshop was arranged at Yellowkife 1991 with 67 participants. The workshop addressed the issue of how ecological theory can be applied to practical caribou management problems.
Sven Skjenneberg (ed. in chief)
doaj   +1 more source

Soil and microbial responses to wild ungulate trampling depend more on ecosystem type than trampling severity

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Physical trampling is a ubiquitous activity of walking vertebrates, but is poorly understood as a mechanism impacting biogeochemical cycling in soil. Lack of detailed knowledge of soil abiotic–biotic interactions underlying trampling effects, and the primary sources of ...
G. Adam Meyer   +3 more
wiley   +1 more source

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