Results 21 to 30 of about 175,990 (269)

Occupational Asthma [PDF]

open access: yesThorax, 1980
Summary Occupational asthma is important both as a potentially curable and preventable cause of asthma and as a model of adult onset asthma. It is induced by sensitization to a specific agent inhaled at work; for many of its causes, including inhaled proteins and the low molecular weight chemicals acid anhydrides and reactive dyes, it is
openaire   +4 more sources

Using occupancy models to accommodate uncertainty in the interpretation of aerial photograph data: Status of beaver in Central Oregon, USA

open access: yesWildlife Society Bulletin, 2015
Beavers (Castor canadensis) influence habitat for many species and pose challenges in developed landscapes. They are increasingly viewed as a cost‐efficient means of riparian habitat restoration and water storage.
Christopher A. Pearl   +3 more
doaj   +1 more source

Comparison of systematic roost searches and acoustic detection to determine occupancy of rare forest bats

open access: yesWildlife Society Bulletin, 2014
Despite recent increases in conservation interest, the distribution, habitat needs, and conservation priorities remain poorly understood for many animal species, including forest bats.
Christopher E. Comer   +3 more
doaj   +1 more source

A model to predict the likelihood of cliff swallow nesting on highway structures in northern California

open access: yesHuman-Wildlife Interactions, 2017
Cliff swallows (Petrochelidon pyrrhonota) are colonially breeding migratory birds that frequently nest on highway structures. Under the Migratory Bird Treaty Act of 1918, people cannot harm swallows or their active nests. This restriction causes problems
Robert W. Coates   +3 more
doaj   +1 more source

Local and landscape characteristics shape amphibian communities across production landscapes in the Western Ghats

open access: yesEcological Solutions and Evidence, 2021
Global tropical forests have been modified and fragmented by commodity agroforests, leading to significant alterations in ecological communities.
Vishnupriya Sankararaman   +3 more
doaj   +1 more source

Effects of Climate and Land Use on the Population Dynamics of the Bank Vole (Clethrionomys glareolus) in the Southernmost Part of Its Range

open access: yesAnimals
This study investigated the effects of habitat structure and climatic variables on populations of bank voles (Clethrionomys glareolus), a northern species with adaptations to cooler climate, at the southern end of their range in Western Europe over a 16 ...
Lucía de la Huerta-Schliemann   +3 more
doaj   +1 more source

Effects of landscape‐scale forest change on the range contraction of ruffed grouse in New York State, USA

open access: yesWildlife Society Bulletin, 2013
In New York State, USA, the abundance of ruffed grouse (Bonasa umbellus) has declined >75% since the 1960s. We hypothesized that range contraction of grouse in New York State was associated with broad‐scale spatial patterns relating to forest maturation ...
William F. Porter, Marta A. Jarzyna
doaj   +1 more source

An Evaluation of Systematic Versus Strategically-Placed Camera Traps for Monitoring Feral Cats in New Zealand

open access: yesAnimals, 2019
We deploy camera traps to monitor feral cat (Felis catus) populations at two pastoral sites in Hawke’s Bay, North Island, New Zealand. At Site 1, cameras are deployed at pre-determined GPS points on a 500-m grid, and at Site 2, cameras are ...
Margaret Nichols   +3 more
doaj   +1 more source

Electronic Occupancy of S and D Shells in Nickel [PDF]

open access: yesKirkuk Journal of Science, 2011
In this paper we have calculated the electronic structure of Ni28 by adopting the RFA model and compared with recent available measured data. It is found that 3d8.34s1.7 is the best fractional electronic cofiguration for Nickel.
Yasir K. Mohammed
doaj   +1 more source

Dispersal ability and niche breadth influence interspecific variation in spider abundance and occupancy

open access: yesRoyal Society Open Science, 2023
The relationship between species local abundance and their regional distribution (occupancy) is one of the most extensively recognized and investigated patterns in ecology. While exceptions exist, the generally held model is that locally abundant species
Daniel Suárez   +3 more
doaj   +1 more source

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