Browsing Brage NMBU by Author "Chipperfield, Joseph"
Now showing items 1-8 of 8
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A flexible and efficient Bayesian implementation of point process models for spatial capture‐recapture data
Wei, Zhang; Chipperfield, Joseph; Illian, Janine; Dupont, Pierre; Milleret, Cyril Pierre; de Valpine, Perry; Bischof, Richard (Peer reviewed; Journal article, 2022)Spatial capture–recapture (SCR) is now routinely used for estimating abundance and density of wildlife populations. A standard SCR model includes sub-models for the distribution of individual activity centers (ACs) and for ... -
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) -
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 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 ... -
MetaComNet: A random forest- based framework for making spatial predictions of plant– pollinator interactions
Sydenham, Markus A. K.; Venter, Zander; Reitan, Trond; Rasmussen, Claus; Skrindo, Astrid Brekke; Skoog, Daniel Ingvar Jeuderan; Hanevik, Kaj-Andreas; Hegland, Stein Joar; Dupont, Yoko L.; Nielsen, Anders; Chipperfield, Joseph; Rusch, Graciela (Peer reviewed; Journal article, 2021)1. Predicting plant–pollinator interaction networks over space and time will improve our understanding of how environmental change is likely to impact the functioning of ecosystems. Here we propose a framework for producing ... -
MetaComNet: A random forest-based framework for making spatial predictions of plant–pollinator interactions
Sydenham, Markus A. K.; Venter, Zander; Reitan, Trond; Rasmussen, Claus; Skrindo, Astrid Brekke; Skoog, Daniel Ingvar Jeuderan; Hanevik, Kaj-Andreas; Hegland, Stein Joar; Dupont, Yoko L.; Nielsen, Anders; Chipperfield, Joseph; Rusch, Graciela (Journal article; Peer reviewed, 2021)1. Predicting plant–pollinator interaction networks over space and time will improve our understanding of how environmental change is likely to impact the functioning of ecosystems. Here we propose a framework for producing ... -
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 ...