Results 11 to 20 of about 1,520,610 (235)

Long-term trends in the use of a protected area by small cetaceans in relation to changes in population status [PDF]

open access: yesGlobal Ecology and Conservation, 2014
The requirement to monitor listed species in European designated sites is challenging for long-lived mobile species that only temporarily occupy protected areas.
Barbara Cheney   +11 more
doaj   +2 more sources

Application of network theory to mark recapture data allows insights into population structure of two Heliconius species [PDF]

open access: yesNetwork Biology, 2015
By noting the spatial location of captured individuals mark-recapture studies create a collection of discrete events spread in space and time. This setup is appropriate for network modeling where the vertices (or nodes) are the points of capture and ...
Luciana L.F. de Lima   +2 more
doaj   +2 more sources

Close-kin mark-recapture informs critically endangered terrestrial mammal status. [PDF]

open access: yesSci Rep, 2023
Reliable information on population size is fundamental to the management of threatened species. For wild species, mark-recapture methods are a cornerstone of abundance estimation. Here, we show the first application of the close-kin mark-recapture (CKMR)
Lloyd-Jones LR   +15 more
europepmc   +2 more sources

Integrating telemetry data at several scales with spatial capture–recapture to improve density estimates

open access: yesEcosphere, 2021
Accurate population estimates are essential for monitoring and managing wildlife populations. Mark–recapture sampling methods have regularly been used to estimate population parameters for rare and cryptic species, including the federally listed Mojave ...
Corey I. Mitchell   +7 more
doaj   +1 more source

Expanding the feasibility of fish and wildlife assessments with close‐kin mark–recapture

open access: yesEcosphere, 2020
Close‐kin mark–recapture (CKMR) is a powerful new method for the assessment of fish and wildlife population dynamics. Unlike traditional mark–recapture techniques, the use of kinship as an identifying mark is robust to many forms of capture heterogeneity
Benjamin Marcy‐Quay   +3 more
doaj   +1 more source

Abundance estimation from genetic mark-recapture data when not all sites are sampled: An example with the bowhead whale

open access: yesGlobal Ecology and Conservation, 2020
Estimating abundance is one of the most fundamental and important aspects of population biology, with major implications on how the status of a population is perceived and thus on conservation and management efforts.
Timothy R. Frasier   +5 more
doaj   +1 more source

Recapture heterogeneity in cliff swallows: increased exposure to mist nets leads to net avoidance. [PDF]

open access: yesPLoS ONE, 2013
Ecologists often use mark-recapture to estimate demographic variables such as abundance, growth rate, or survival for samples of wild animal populations.
Erin A Roche   +3 more
doaj   +1 more source

A Simple, Inexpensive Method for Mark-Recapture of Ixodid Ticks. [PDF]

open access: yesJ Insect Sci, 2020
Mark-recapture techniques have been widely used and specialized to study organisms throughout the field of biology. To mark-recapture ticks (Ixodida), we have created a simple method to mark ticks using nail polish applied with an insect pin secured in a
White A, Minch R, Bidder L, Gaff H.
europepmc   +3 more sources

Survival rates of adult and juvenile gyrfalcons in Iceland: estimates and drivers [PDF]

open access: yesPeerJ, 2021
Knowledge of survival rates and their potential covariation with environmental drivers, for both adults and juveniles, is paramount to forecast the population dynamics of long-lived animals.
Frédéric Barraquand   +1 more
doaj   +2 more sources

A generalised likelihood framework for partially observed capture-recapture-recovery models [PDF]

open access: yes, 2013
We provide a closed form likelihood expression for multi-state mark-recapture-recovery data when the state of an individual may be only partially observed.
McCrea, Rachel S.   +2 more
core   +1 more source

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