Browsing Brage NMBU by Author "Bischof, Richard"
Now showing items 1-20 of 74
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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) -
Activity patterns in tropical forest mammals : a pantropical assessment using camera-trap data
Vallejo Vargas, Andrea Fernanda (PhD thesis;2024:8, Doctoral thesis, 2024) -
An evaluation of the efficiency of survey methods to monitor large mammals in Cusuco National Park, Honduras
Storm, Nina Andrea (Master thesis, 2017)Field sign surveys and camera trap surveys are frequently used in the tropics as the preferred survey technique to monitor large terrestrial mammal communities. However, these methods vary in the efficiency of detecting ... -
Anthropogenic effects on spatiotemporal activity patterns and interactions in a predator-prey assemblage
Thorsen, Neri Horntvedt (Master thesis, 2016-08-31)Evidence is accumulating that human presence and anthropogenic features in the environment impact the spatiotemporal activity patterns of both predators and prey. This is liable to affect predator-prey interactions, one ... -
Assessing snow leopard (Uncia uncia) by sign surveys and camera trapping in Northern Pakistan
Mahmood, Tahir (Master thesis, 2012)The snow leopard (Uncia uncial) is an elusive carnivore often used as an indicator of human health or a flagship species in conservation programs. Like many other carnivores snow leopard is also an endangered species and ... -
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 ... -
Behavioral responses to camera traps : a study on two large carnivores in Norway
Beddari, Benedicte Lissner (Master thesis, 2019)In ecology, camera trapping is commonly used as a non-invasive technique to collect ecological observation data and to monitor populations. The technique is used to address a variety of research questions worldwide. Despite ... -
Behavioral responses to olfactory attractants at camera traps : a study of three carnivores in a boreal ecosystem
Brøste, Ellen Nordrum (Master thesis, 2018)Camera trapping is an efficient and minimally invasive method for studying wildlife ecology and behavior. In camera trap studies, it is important to consider the detection probability to get reliable estimates of e.g. ... -
Behavioural responses of captive red fox (Vulpes vulpes) to telemetry collars
Bruholt, Sigrid (Master thesis, 2018)Telemetry is one of the most important tools of wildlife research. It provides information about dispersal, home range, survival, movement and many other ecological and biological aspects. Although many animals are fitted ... -
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) -
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 ... -
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 domestic cat ocurrence in forests in southeastern Norway
Nyheim, Øyvind Skarsgard (Master thesis, 2022)Domestic cats can pose a significant threat to local wildlife in urban and rural areas because of their high densities and proficiency as predators. However, few attempts have been made to quantify the impact of domestic ...