Results 191 to 200 of about 28,758 (282)

Accounting for unobserved population dynamics and aging error in close-kin mark-recapture assessments. [PDF]

open access: yesEcol Evol
Swenson JD   +8 more
europepmc   +1 more source

Estimating spatiotemporal reproductive dynamics of fish populations with passive acoustic monitoring: A state‐space model approach

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Passive acoustic monitoring (PAM) has been used to estimate the presence and spatial distribution of target organisms using biological sounds received by microphones. Due to its cost‐effectiveness and non‐invasiveness, PAM is becoming a promising approach for studying the spatiotemporal dynamics of large groups in response to environmental ...
Keisuke Ota   +3 more
wiley   +1 more source

Glass eel migration in an urbanized catchment: an integral bottleneck assessment using mark-recapture. [PDF]

open access: yesMov Ecol
Griffioen AB   +5 more
europepmc   +1 more source

Microhaplotype Methods Enable Relationship Inference in a Bottlenecked Mammalian Species

open access: yesAnimal Conservation, EarlyView.
Northern elephant seals (Mirounga angustirostris) are among the most genetically depauperate mammals in the world. A near‐total population bottleneck in the 19th century, coupled with the breeding system of extreme polygyny, has challenged efforts to estimate individual reproductive success with genetic methods.
Keith M. Hernandez   +6 more
wiley   +1 more source

Challenges of Monitoring Endangered Bryde's Whales During a Period of Rapid Environmental Change

open access: yesAnimal Conservation, EarlyView.
Estimating population size is challenging for rare and elusive species that occur at low densities and are difficult to detect during sampling. We estimated the abundance of a Nationally critical whale species—Aotearoa New Zealand Bryde's whales—using a custom‐formulated POPAN model which incorporated transience to account for their complex residency ...
A. S. Cranswick   +7 more
wiley   +1 more source

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

open access: yesAnimal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić   +8 more
wiley   +1 more source

Survival Remains High in Griffon Vultures 40 Years After Reintroduction

open access: yesAnimal Conservation, EarlyView.
The reintroduction of the Griffon vulture (Gyps fulvus) in French Grands Causses in 1981 is largely regarded as a significant translocation success. 40 years of quality data from intensive monitoring allows us to investigate the survival rates in this long‐lived population on the long term, but also to reflect on the crucial role of adaptive management
Charlotte Lorand   +7 more
wiley   +1 more source

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