Results 141 to 150 of about 2,025,649 (289)

Born to die: pack and population level estimates of wolf pup survival and recruitment in the Greater Voyageurs Ecosystem

open access: yesWildlife Biology, EarlyView.
Wolf pup Canis lupus survival is a key driver of wolf population dynamics that remains poorly understood, especially in forested systems, because wolf pups are difficult to monitor. We used a combination of pup counts at dens and remote camera observations to estimate annual survival and recruitment of wolf pups in the Greater Voyageurs Ecosystem, MN ...
Andrea Hynes   +4 more
wiley   +1 more source

MOOSE MARK-RECAPTURE SURVEY IN NEWFOUNDLAND

open access: yes, 1992
The mark-recapture survey (Lincoln-Petersen method) using a dye marking technique reduced many biases in aerial surveying and therefore increased accuracy in estimating moose density.
Oosenbrug, Sebastian M.   +1 more
core  

Joint estimation of survival and dispersal effectively corrects the permanent emigration bias in mark-recapture analyses. [PDF]

open access: yesSci Rep, 2023
Badia-Boher JA   +6 more
europepmc   +1 more source

Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites

open access: yesWildlife Biology, EarlyView.
Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer   +10 more
wiley   +1 more source

Mark-recapture with tag loss

open access: yes, 2005
Mark-recapture studies are used to estimate population parameters such as abundance, survival and recruitment. Briefly, animals are captured, marked with an individually identifiable tag and released. First capture provides information about abundance. Subsequent recaptures provided survival information about the individual.
openaire   +1 more source

Detecting changes in distribution and abundance using harvest data in two sympatric bear species in Southeast Alaska

open access: yesWildlife Biology, EarlyView.
Monitoring wildlife populations in remote landscapes is challenging due to the difficulties of conducting field surveys. However, harvest data, which are routinely collected by management agencies, offer valuable insights into population trends. Brown bear Ursus arctosand American black bear U.
Philip R. Douchinsky   +4 more
wiley   +1 more source

Seasonal variation in faecal glucocorticoid metabolite concentrations of two dominant southern African murids (Lemniscomys rosalia and Mastomys coucha) across variously transformed landscapes

open access: yesWildlife Biology, EarlyView.
Global landscape transformations are a result of a growing human population and the subsequent increased use of natural habitats. Local species extinctions across various transformed landscapes emphasise the importance of monitoring wildlife responses to anthropogenic activities.
Mmatsawela Ramahlo   +2 more
wiley   +1 more source

Classroom Mark-Recapture with Crickets

open access: yesThe American Biology Teacher, 2007
Andrew R. Whiteley   +4 more
openaire   +1 more source

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