Results 21 to 30 of about 39,347 (265)
Chew-cards can accurately index invasive rat densities in Mariana Island forests [PDF]
NeoBiota, 2022 Rats (Rattus spp.) are likely established on 80–90% of the world’s islands and represent one of the most damaging and expensive biological invaders. Effective rat control tools exist but require accurate population density estimates or indices to inform ...
Emma B. Hanslowe +6 more
doaj +3 more sources
J. Cetacean Res. Manage., 2023 From February 1999 to August 2002 ca 9,000km (840 hours) of search effort and 549 hours of observation on Irrawaddy dolphins (Orcaella brevirostris) were conducted by boat in the Mahakam River in East Kalimantan, Indonesia. An abundance estimate based on
D. Kreb
semanticscholar +1 more source
Estimating bee abundance: can mark-recapture methods validate common sampling protocols?
Apidologie, 2022 Wild bees can be essential pollinators in natural, agricultural, and urban systems, but populations of some species have declined. Efforts to assess the status of wild bees are hindered by uncertainty in common sampling methods, such as pan traps and ...
E. Briggs +5 more
semanticscholar +1 more source
Estimation fish stock and composition using mark recapture studies in floodplain lake, Jambi City
Depik Jurnal, 2023 Fish stock assessment can be estimated by dependent and independent sampling; Mark-recapture studies is a part of independent sampling method that can be used for it. This study was conducted in 2018 using purposive sampling methods.
Siswanta Kaban +2 more
doaj +1 more source
Ecosphere, 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
Global 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]
PLoS 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
Evaluating techniques for sampling stream crayfish (paranephrops planifrons) [PDF]
, 1997 We evaluated several capture and analysis techniques for estimating abundance and size structure of freshwater crayfish (Paranephrops planifrons) (koura) from a forested North Island, New Zealand stream to provide a methodological basis for future ...
Brant T. M. +9 more
core +2 more sources
Survival rates of adult and juvenile gyrfalcons in Iceland: estimates and drivers [PDF]
PeerJ, 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
The yellow European eel (Anguilla anguilla L.) may adopt a sedentary lifestyle in inland freshwaters [PDF]
, 2005 We analysed the movements of the growing yellow phase using a long-term mark–recapture programme on European eels in a small catchment (the Frémur, France). The results showed that of the yellow eels (>200 mm) recaptured, more than 90% were recaptured at
Beentjes M.P. +17 more
core +4 more sources