Results 11 to 20 of about 501,741 (157)

Modelling the Relative Abundance of Roe Deer (Capreolus capreolus L.) along a Climate and Land-Use Gradient

open access: yesAnimals, 2022
European roe deer (Capreolus capreolus L.) are important given their economic, recreational and ecological value. However, uncontrolled roe deer numbers can result in negative impacts on forest regeneration and agricultural crops, disease transmission ...
Caryl S. Benjamin   +15 more
doaj   +1 more source

Free-Roaming Dog Surveys in Quito, Ecuador: Experiences, Lessons Learned, and Future Work

open access: yesFrontiers in Veterinary Science, 2021
The selection of a survey method of free-roaming dog populations should be based on analyses of local capacities and management priorities. Here, we compare the results of surveys of the stray dog population in Quito, Ecuador, using two different ...
Max Cárdenas   +3 more
doaj   +1 more source

Estimating abundance of an elusive cetacean in a complex environment: Harbor porpoises (Phocoena phocoena) in inland waters of Southeast Alaska

open access: yesFrontiers in Marine Science, 2022
The harbor porpoise (Phocoena phocoena) is common in temperate waters of the eastern North Pacific Ocean, including Southeast Alaska inland waters, a complex environment comprised of open waterways, narrow channels, and inlets.
Alexandre N. Zerbini   +6 more
doaj   +1 more source

Highest densities of mountain hares (Lepus timidus) associated with ecologically restored bog but not grouse moorland management

open access: yesEcology and Evolution, 2022
Over the last 20 years, ecological restoration of degraded habitats has become common in conservation practice. Mountain hares (Lepus timidus scoticus) were surveyed during 2017–2021 using 830 km of line transects in the Peak District National Park ...
Carlos P. E. Bedson   +6 more
doaj   +1 more source

A method for estimating songbird abundance with drones

open access: yesDrone Systems and Applications, 2022
Using drones to conduct airborne bioacoustics surveys is a potentially useful new way to estimate the abundance of vocal bird species. Here we show that by using two audio recorders suspended from a quadcopter drone it is possible to estimate distances ...
Andrew M. Wilson   +5 more
doaj   +1 more source

Long‐term monitoring of wildlife populations for protected area management in Southeast Asia

open access: yesConservation Science and Practice, 2022
Long‐term monitoring of biodiversity in protected areas (PAs) is critical to assess threats, link conservation action to species outcomes, and facilitate improved management. Yet, rigorous longitudinal monitoring within PAs is rare.
Matthew N. Nuttall   +8 more
doaj   +1 more source

Assessment and novel application of N‐mixture models for aerial surveys of wildlife

open access: yesEcosphere, 2021
Aerial surveys are a critical tool for inference of wildlife populations, yet are limited by current available methods to account for imperfect detection without marking animals.
Sonja A. Christensen   +2 more
doaj   +1 more source

Depth of Edge Influence in a Madagascar Lowland Rainforest and Its Effects on Lemurs’ Abundance

open access: yesLand, 2022
Edge effects result from interactions between adjacent habitats, which can modify abiotic and biotic conditions and produce various negative effects on biodiversity.
Marco Campera   +8 more
doaj   +1 more source

AbundanceR: A Novel Method for Estimating Wildlife Abundance Based on Distance Sampling and Species Distribution Models

open access: yesLand, 2022
Appropriate field survey methods and robust modeling approaches play an important role in wildlife protection and habitat management because reliable information on wildlife distribution and abundance is important for conservation planning and actions ...
Xinhai Li   +4 more
doaj   +1 more source

Incorporating Animal Movement Into Distance Sampling [PDF]

open access: yesJournal of the American Statistical Association, 2020
Distance sampling is a popular statistical method to estimate the density of wild animal populations.
R. Glennie   +6 more
openaire   +3 more sources

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