Browsing Brage NMBU by Author "Dupont, Pierre"
Now showing items 1-14 of 14
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A local evaluation of the individual state‐space to scale up Bayesian spatial capture–recapture
Milleret, Cyril Pierre; Dupont, Pierre; Bonenfant, Christophe; Brøseth, Henrik; Flagstad, Øystein; Sutherland, Chris; Bischof, Richard (Journal article; Peer reviewed, 2018) -
Consequences of ignoring group association in spatial capture–recapture analysis
Bischof, Richard; Dupont, Pierre; Milleret, Cyril; Chipperfield, Joseph; Royle, J. Andrew (Peer reviewed; Journal article, 2020) -
Consequences of reduced sampling intensity for estimating population size of wolves in Scandinavia with spatial capture-recapture models
Milleret, Cyril; Dupont, Pierre; Åkesson, Mikael; Svensson, Linn; Brøseth, Henrik; Bischof, Richard (MINA fagrapport;65, Report, 2020)Every winter, the Scandinavian wolf population is surveyed using non-invasive genetic sampling (NGS) and snow-tracking to assess its annual status and trends. During 2017/18, search intensity and the proportion of samples ... -
Efficient estimation of large-scale spatial capture–recapture models
Turek, Daniel; Milleret, Cyril Pierre; Ergon, Torbjørn; Brøseth, Henrik; Dupont, Pierre; Bischof, Richard; de Valpine, Perry (Journal article; Peer reviewed, 2021)Capture–recapture methods are a common tool in ecological statistics, which have beenextended to spatial capture–recapture models for data accompanied by location information. However,standard formulations of these models ... -
Estimates of wolf density, abundance, and population dynamics in Scandinavia, 2012 - 2021
Milleret, Cyril; Dupont, Pierre; Åkesson, Mikael; Brøseth, Henrik; Kindberg, Jonas; Bischof, Richard (MINA fagrapport;72, Report, 2021)Background The Scandinavian wolf (Canis lupus) population is being monitored annually using non-invasive genetic sampling (NGS) and recovery of dead individuals. DNA extracted from faeces, urine, hair, and tissue is used ... -
Estimating abundance with interruptions in data collection using open population spatial capture–recapture models
Milleret, Cyril Pierre; Dupont, Pierre; Chipperfield, Joseph; Turek, Daniel; Brøseth, Henrik; Gimenez, Olivier; de Valpine, Perry; Bischof, Richard (Peer reviewed; Journal article, 2020)The estimation of population size remains one of the primary goals and challenges in ecology and provides a basis for debate and policy in wildlife management. Despite the development of efficient noninvasive sampling ... -
Estimating and forecasting spatial population dynamics of apex predators using transnational genetic monitoring
Bischof, Richard; Milleret, Cyril Pierre; Dupont, Pierre; Chipperfield, Joseph; Tourani, Mahdieh; Ordiz Fernandez, Andres Avelino; de Valpine, Perry; Turek, Daniel; Royle, J. Andrew; Gimenez, Olivier; Flagstad, Øystein; Åkesson, Mikael; Svensson, Linn; Brøseth, Henrik; Kindberg, Jonas (Peer reviewed; Journal article, 2020)The ongoing recovery of terrestrial large carnivores in North America and Europe is accompanied by intense controversy. On the one hand, reestablishment of large carnivores entails a recovery of their most important ... -
Estimating densities of red foxes using non-invasive genetic sampling and spatial capture-recapture modeling
Lindsø, Lars Kristian (Master thesis, 2020)Spatial capture-recapture modelling (SCR) is a powerful tool for estimating densities, population size and space use of elusive animals. However, SCR modeling has not been widely applied to ecologically important mesopredators ... -
Estimating red fox density using non-invasive genetic sampling and spatial capture–recapture modelling
Lindsø, Lars; Dupont, Pierre; Rød-Eriksen, Lars; Andersskog, Ida Pernille Øystese; Ulvund, Kristine R.; Flagstad, Øystein; Bischof, Richard; Eide, Nina Elisabeth (Peer reviewed; Journal article, 2021)Spatial capture–recapture modelling (SCR) is a powerful tool for estimating density, population size, and space use of elusive animals. Here, we applied SCR modelling to non-invasive genetic sampling (NGS) data to estimate ... -
Estimating the size of the Scandinavian wolf population with spatial capture-recapture and conversion factors
Bischof, Richard; Milleret, Cyril; Dupont, Pierre; Chipperfield, Joseph; Åkesson, Mikael; Brøseth, Henrik; Kindberg, Jonas (MINA fagrapport;57, Report, 2019)Monitoring of wolves (Canis lupus) in Scandinavia is a coordinated effort between Swedish and Norwegian management authorities. Since 2012/13, the size of the Scandinavian wolf population is being estimated indirectly by ... -
GPS collars have an apparent positive effect on the survival of a large carnivore
Milleret, Cyril Pierre; Bischof, Richard; Dupont, Pierre; Brøseth, Henrik; Odden, John; Mattisson, Jenny (Peer reviewed; Journal article, 2021)Are instrumented animals representative of the population, given the potential bias caused by selective sampling and the influence of capture, handling and wearing bio-loggers? The answer is elusive owing to the challenges ... -
Population closure and the bias-precision trade-off in spatial capture–recapture
Dupont, Pierre; Milleret, Cyril Pierre; Gimenez, Olivier; Bischof, Richard (Journal article; Peer reviewed, 2019) -
RovQuant : estimating density, abundance and population dynamics of bears, wolverines and wolves in Scandinavia
Bischof, Richard; Milleret, Cyril; Dupont, Pierre; Chipperfield, Joseph; Brøseth, Henrik; Kindberg, Jonas (MINA fagrapport;63, Report, 2019)Background Reliable estimates of population status are a pre-requisite for informed wildlife management. However, abundance estimates can be challenging to obtain, especially for species that are highly mobile, rare and ... -
Using partial aggregation in spatial capture recapture
Milleret, Cyril Pierre; Dupont, Pierre; Brøseth, Henrik; Kindberg, Jonas; Royle, J. Andrew; Bischof, Richard (Journal article; Peer reviewed, 2018)