Results 11 to 20 of about 44 (42)

Summertime Airborne Measurements of Ammonia Emissions From Cattle Feedlots and Dairies in Northeastern Colorado

open access: yesJournal of Geophysical Research: Atmospheres, Volume 128, Issue 23, 16 December 2023., 2023
Abstract Phase One of the Transportation and Transformation of Ammonia (TRANS2Am) field campaign took place in northeastern Colorado during the summer of 2021. One of the goals of TRANS2Am was to measure ammonia (NH3) emissions from cattle feedlots and dairies.
Julieta F. Juncosa Calahorrano   +8 more
wiley   +1 more source

Quantification of marine benthic communities with metabarcoding

open access: yesMolecular Ecology Resources, Volume 22, Issue 3, Page 1043-1054, April 2022., 2022
Abstract DNA metabarcoding methods have been implemented in studies aimed at detecting and quantifying marine benthic biodiversity. In such surveys, universal barcodes are amplified and sequenced from environmental DNA. To quantify biodiversity with DNA metabarcoding, a relation between the number of DNA sequences of a species and its biomass and/or ...
Lise Klunder   +5 more
wiley   +1 more source

Soil nutrient distribution on cattle farms in three physiographic regions of North Carolina

open access: yesAgronomy Journal, Volume 113, Issue 1, Page 590-609, January/February 2021., 2021
Abstract Beef cattle production systems are sometimes considered a source of nutrient enrichment due to alteration of botanical composition and excretion of nutrients in isolated zones of pastures. However, research on environmental effects from livestock grazing in the eastern United States has been scant.
Alan J. Franzluebbers   +3 more
wiley   +1 more source

Dispersal behaviour of a polygynous carnivore: do cougars Puma concolor follow source‐sink predictions?

open access: yesWildlife Biology, Volume 19, Issue 3, Page 289-301, September 2013., 2013
The source‐sink model of population dynamics predicts that density drives emigration of subordinate animals to habitats offering lower competition for resources. Several authors have suggested use of this model as a potential framework for conservation of exploited carnivores when precise enumeration is unfeasible.
David C. Stoner   +5 more
wiley   +1 more source

Spatio‐temporal variation in large herbivore pressure in Norway during 1949‐1999: has decreased grazing by livestock been countered by increased browsing by cervids?

open access: yesWildlife Biology, Volume 17, Issue 3, Page 286-298, September 2011., 2011
Abstract During recent decades, rough livestock grazing has decreased markedly on unimproved land (i.e. natural and semi‐natural habitats) across most of Europe, whilst the number of wild cervids has increased. However, we still know little about the overall changes in the herbivore pressure and how herbivore regimes vary between biogeographic regions.
Gunnar Austrheim   +2 more
wiley   +1 more source

2021 ACVIM Forum Research Abstract Program

open access: yes, 2021
Journal of Veterinary Internal Medicine, Volume 35, Issue 6, Page 2943-3079, November/December 2021.
wiley   +1 more source

Evaluation of alternative management strategies of muskrat Ondatra zibethicus population control using a population model

open access: yesWildlife Biology, Volume 17, Issue 2, Page 143-155, June 2011., 2011
Abstract Muskrats Ondatra zibethicus are considered a pest species in the Netherlands, and a year‐round control programme is in effect. Currently, the agency responsible for the management of muskrat populations in the Netherlands (the LCCM) is preparing for field studies to compare alternative strategies of control.
Daan Bos, Ron Ydenberg
wiley   +1 more source

Space use of sympatric deer in a riparian ecosystem in an area where chronic wasting disease is endemic

open access: yesWildlife Biology, Volume 17, Issue 2, Page 191-209, June 2011., 2011
Abstract Knowledge of movements, range size and spatial overlap of sympatric deer is integral to understanding chronic wasting disease (CWD) in endemic areas and can assist resource managers in modeling the spread of the disease. We radio‐collared 70 deer (30 mule deer Odocoileus hemionus and 40 white‐tailed deer O.
W. David Walter   +8 more
wiley   +1 more source

Moose Alces alces habitat use at multiple temporal scales in a human‐altered landscape

open access: yesWildlife Biology, Volume 17, Issue 1, Page 44-54, March 2011., 2011
Abstract Habitat alteration by humans may change the supply of food and cover for wild ungulates, but few studies have examined how these resources are utilised over time by individuals of different sex and reproductive status. We examined circadian and seasonal variation in habitat utilisation within a moose Alces alces population in central Norway ...
Kari Bj⊘rneraas   +9 more
wiley   +1 more source

Characteristics and dynamics of a regional moose Alces alces population in the northeastern United States

open access: yesWildlife Biology, Volume 16, Issue 2, Page 185-204, June 2010., 2010
Abstract Abundance indices suggested that the moose Alces alces population in northern New Hampshire was stable despite favourable habitat and conservative harvest. Causes and rates of mortality were unknown because moose reproduction and survival was unstudied in the region. Our study was designed to investigate the dynamics of the regional population
Anthony R. Musante   +2 more
wiley   +1 more source

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