Results 61 to 70 of about 3,606 (149)

Patch-Scale Movement Dynamics in the Iowa Grassland Butterflies \u3ci\u3eSpeyeria Cybele\u3c/i\u3e and \u3ci\u3eMegisto Cymela\u3c/i\u3e (Lepidoptera: Nymphalidae) [PDF]

open access: yes, 2018
An understanding of the movement dynamics of invertebrates can be critical to their conservation, especially when managing relatively small, isolated habitats. Most studies of butterfly movement have focused on metapopulation dynamics at relatively large
Courard-Hauri, David   +3 more
core   +2 more sources

Population dynamics of Townsend's big‐eared bats: effect of age and drought on survival

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
We estimated age‐specific yearly survival of female Townsend's big‐eared bats in Inyo and Mono Counties, California. We found that both juvenile and adult survival were negatively impacted by drought, and that detection probability was lower for hand‐recapture than for bats detected via pass‐through antenna arrays.
Natalie M. Hamilton   +3 more
wiley   +1 more source

Evaluation of abundance indexes in open population studies: a comparison in populations of small mammals in southern Brazil

open access: yesBrazilian Journal of Biology
Many manuscripts comparing populations and/or analysing the structure of animal communities use indexes of captures as synonymous of abundance. However, the basic methods more suitable to this assumption - probabilistic estimates based on equal capture ...
ME Graipel, MIM Hernández, C Salvador
doaj   +1 more source

An empirical Bayesian approach to incorporate directional movement information from a forage fish into the Arnason-Schwarz mark-recapture model

open access: yesMovement Ecology, 2021
Background Over the past two decades, various species of forage fish have been successfully implanted with miniaturized acoustic transmitters and subsequently monitored using stationary acoustic receivers.
Mary A. Bishop, Jordan W. Bernard
doaj   +1 more source

A scalable integrated population model for estimating abundance for gamebird management

open access: yesJournal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our O‐IPM presents an efficient and practical approach for estimating wildlife population demographics, particularly in situations where data collection is limited. This study demonstrates how information from intensive, localized research can be leveraged to inform broader‐scale management through strategic use of prior information.
Veronica A. Winter   +6 more
wiley   +1 more source

Long‐term apparent survival of a cold‐stunned subpopulation of juvenile green turtles

open access: yesEcosphere, 2022
Understanding the effects of extreme weather on animal populations is fundamental to ecological and conservation sciences and species management. Climate change has resulted in both warm and cold temperature extremes, including an increased frequency of ...
Robert Mollenhauer   +2 more
doaj   +1 more source

Post-epizootic salamander persistence in a disease-free refugium suggests poor dispersal ability of Batrachochytrium salamandrivorans [PDF]

open access: yes, 2018
Lack of disease spill-over between adjacent populations has been associated with habitat fragmentation and the absence of population connectivity. We here present a case which describes the absence of the spill-over of the chytrid fungus Batrachochytrium
Bogaerts, Sergé   +8 more
core   +3 more sources

On the Assessment of Sinking Particle Fluxes From In Situ Particle Size Distributions

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract The biological carbon pump is a vital component of the global carbon cycle, particularly through the sinking of particulate organic carbon (POC) into the ocean interior. Particle size distribution (PSD) observations from the Underwater Vision Profiler (UVP) have been widely used to quantify sinking POC fluxes.
Elena Ceballos Romero   +8 more
wiley   +1 more source

The average laboratory samples a population of 7,300 Amazon Mechanical Turk workers [PDF]

open access: yes, 2015
Using capture-recapture analysis we estimate the effective size of the active Amazon Mechanical Turk (MTurk) population that a typical laboratory can access to be about 7,300 workers.
Bartels, Daniel M.   +6 more
core   +2 more sources

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