Blar i Publikasjoner fra Cristin - NMBU på forfatter "Bischof, Richard"
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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 ... -
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) -
A multidisciplinary approach to estimating wolf population size for long-term conservation
Marucco, Francesca; Boiani, Virginia; Dupont, Pierre; Milleret, Cyril Pierre; Avanzinelli, Elisa; Pilgrim, Kristine; Schwartz, Michael K.; von Hardenberg, Achaz; Perrone, Domenica Serena; friard, olivier; menzano, arianna; bisi, francesco; fattori, umberto; tomasella, michela; calderola, sonia; carolfi, sabrina; ferrari, piero; chioso, christian; truc, fabrizio; bombieri, giulia; Pedrotti, Luca; Righetti, Davide; acutis, pierluigi; guglielmo, fabio; Hauffe, Heidi C.; Rossi, Chiara; Caniglia, Romolo; aragno, paola; la morgia, valentina; Genovesi, Piero; Bischof, Richard (Peer reviewed; Journal article, 2023) -
Behavioral buffering of extreme weather events in a high-Arctic herbivore
Loe, Leif Egil; Hansen, Brage Bremset; Stien, Audun; Albon, Steve D.; Bischof, Richard; Carlsson, Anja M.; Irvine, Justin; Meland, Morten; Rivrud, Inger Maren; Ropstad, Erik; Veiberg, Vebjørn; Mysterud, Atle (Journal article; Peer reviewed, 2016)As global warming advances, there is a growing concern about the impact of extreme weather events on ecosystems. In the Arctic, more frequent unseasonal warm spells and rain-on- snow events in winter cause changes in ... -
Being the underdog: An elusive small carnivore uses space with prey and time without enemies
Bischof, Richard; Ali, H; Kabir, M.; Hameed, Shaista; Nawaz, Muhammad Ali (Journal article; Peer reviewed, 2014) -
Berry production drives bottom – up effects on body mass and reproductive success in an omnivore
Hertel, Anne Gabriela; Bischof, Richard; Langval, Ola; Mysterud, Atle; Kindberg, Jonas; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2017)Obligate herbivores dominate studies of the eff ects of climate change on mammals, however there is limited empirical evidence for how changes in the abundance or quality of plant food aff ect mammalian omnivores. Omnivores ... -
Border Security Fencing and Wildlife: The Endof the Transboundary Paradigm in Eurasia?
Linnell, John Durrus; Trouwborst, Arie; Boitani, Luigi; Kaczensky, Petra; Huber, Djuro; Reljic, Slaven; Kusak, Josip; Majic, Aleksandra; Skrbinsek, Tomaz; Potočnik, Hubert; Hayward, Matt W.; Milner-Gulland, E.J.; Buuveibaatar, Bayarbaatar; Olson, Kirk A.; Badamjav, Lkhagvasuren; Bischof, Richard; Zuther, Steffen; Breitenmoser, Urs (Journal article; Peer reviewed, 2016)The ongoing refugee crisis in Europe has seen many countries rush to construct border security fencing to divert or control the flow of people. This follows a trend of border fence construction across Eurasia during the ... -
Caught in the mesh: roads and their network-scale impediment to animal movement
Bischof, Richard; Steyaert, Sam; Kindberg, Jonas (Journal article; Peer reviewed, 2017)Roads have a pervasive multi-faceted influence on ecosystems, including pronounced impacts on wildlife movements. In recognition of the scale-transcending impacts of transportation infrastructure, ecologists have been ... -
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) -
Context-dependent fitness costs of reproduction despite stable body mass costs in an Arctic herbivore
Pigeon, Gabriel; Albon, Steve; Loe, Leif Egil; Bischof, Richard; Bonenfant, Christophe; Forchhammer, Mads; Irvine, Robert Justin; Ropstad, Erik; Veiberg, Vebjørn; Stien, Audun (Peer reviewed; Journal article, 2021) -
Contrasting migration tendencies of sympatric red deer and roe deer suggest multiple causes of migration in ungulates
Mysterud, Atle; Bischof, Richard; Loe, Leif Egil; Odden, John; Linnell, John Durrus (Journal article; Peer reviewed, 2012)Understanding the drivers of seasonal migration among large herbivores is crucial for management and conservation. The forage maturation hypothesis predicts migration even at low population density, due to the benefits of ... -
Determinants of lifetime reproduction in female brown bears: early body mass, longevity, and hunting regulations
Zedrosser, Andreas; Pelletier, Fanie; Bischof, Richard; Festa-Bianchet, Marco; Swenson, Jon (Journal article; Peer reviewed, 2013) -
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 ... -
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 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 spatially variable and density-dependent survival using open-population spatial capture–recapturemodels
Milleret, Cyril Pierre; Dey, Soumen; Dupont, Pierre; Brøseth, Henrik; Turek, Daniel; Bischof, Richard (Peer reviewed; Journal article, 2022)Open-population spatial capture–recapture (OPSCR) models use the spatialinformation contained in individual detections collected over multiple consec-utive occasions to estimate not only occasion-specific density, but ... -
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 ... -
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos)
Rivrud, Inger Maren; Frank, Shane; Bischof, Richard; Mysterud, Atle; Steyaert, Sam; Hertel, Anne Gabriela; Hagen, Snorre; Eiken, Hans Geir; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2019)Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability ... -
Humans and climate change drove the Holocene decline of the brown bear
Albrecht, Jorg; Barton, Kamil A; Selva, Nuria; Sommer, Robert S; Swenson, Jon; Bischof, Richard (Journal article; Peer reviewed, 2017)