John-André Henden

Researcher

E-mail: John-Andre.Henden@hi.no

Telephone: 55238500

Department: Sjøpattedyr

Ecologist

Publications:

https://scholar.google.com/citations?user=fDEkdsgAAAAJ

Subjectarea

Research group: Marine mammals

- Population and food web dynamics

- Estimation of population size of Harp and Hooded seals in the west and east ice, etc.

Curriculum Vitae

Researcher at Institute of Marine Research (IMR) (2023-)

Researcher at the University of Tromsø (UiT) (2013-2022)

Post doc at the University of Tromsø (UiT), prosjekt:

”Ecosystem Finnmark (EcoFinn): Ungulate overabundance, trophic cascades and spatial subsidies” (2010-2013)

Philosophia Doctor (PhD) in Ecology at the University of Tromsø (UiT) (2005-2009). Thesis:

"Changing circumstances: Implications for trophic dynamics and species conservation on the Fennoscandian Tundra"

Publications

Academic articles

2023

A Dynamic Occupancy Model for Interacting Species with Two Spatial Scales

EF Kleiven, F Barraquand, O Gimenez, J-A Henden, RA Ims, EM Soininen, NG Yoccoz

Journal of Agricultural, Biological and Environmental Statistics p. pp 17

2022

Food web approach for managing Arctic wildlife populations in an era of rapid environmental change

JP Mellard, J-A Henden, ÅØ Pedersen, F Marolla, S Hamel, NG Yoccoz, RA Ims

Climate Research 86 p. 163-178

2022

Direct and indirect effects of environmental drivers on reindeer reproduction

J-A Henden, T Tveraa, A Stien, JP Mellard, F Marolla, RA Ims, NG Yoccoz

Climate Research 86 p. 179-190

2022

Environmental effects on spatial population dynamics and synchrony: lessons from northern ecosystems

I Herfindal, AM Lee, JF Marquez, M Le Moullec, B Peeters, BB Hansen, J-A Henden, B-E Sæther

Climate Research 86 p. 113-123

2022

The Traill island model for lemming dynamics, how it compares to Fennoscandian vole dynamics models, and a proposed simplification

F Barraquand, J-A Henden, O Gilg, RA Ims, NG Yoccoz

arXiv preprint 2205.09441

2021

Accounting for food web dynamics when assessing the impact of mesopredator control on declining prey populations

J-A Henden, D Ehrich, EM Soininen, RA Ims

Journal of Applied Ecology 58 p. 104-113

2021

Iterative model predictions for wildlife populations impacted by rapid climate change

F Marolla, J-A Henden, E Fuglei, ÅØ Pedersen, M Itkin, RA Ims

Global Change Biology 27 p. 1547-1559

2021

Effect of scavenging on predation in a food web

JP Mellard, S Hamel, J-A Henden, RA Ims, A Stien, N Yoccoz

Ecology and Evolution 11 p. 6742-6765

2021

A dynamic occupancy model for interacting species with two spatial scales

EF Kleiven, F Barraquand, O Gimenez, J-A Henden, RA Ims, EM Soininen, NG Yoccoz

bioRxiv 12. 16.423067

2020

Circumpolar status of Arctic ptarmigan: population dynamics and trends

E Fuglei, J-A Henden, CT Callahan, O Gilg, J Hansen, RA Ims, AP Isaev, J Lang, CL McIntyre, RA Merizon, OY Mineev, YN Mineev, D Mossop, OK Nielsen, EB Nilsen, ÅØ Pedersen, NM Schmidt, B Sittler, MH Willebrand, K Martin

Ambio 49 p. 749-761

2020

End‐user involvement to improve predictions and management of populations with complex dynamics and multiple drivers

J-A Henden, RA Ims, NG Yoccoz, EJ Asbjørnsen, A Stien, JP Mellard, T Tveraa, F Marolla, JU Jepsen

Ecological Applications 30 p. e02120

2019

Assessing the effect of predator control on an endangered goose population subjected to predator‐mediated food web dynamics

F Marolla, T Aarvak, IJ Øien, JP Mellard, J-A Henden, S Hamel, A Stien, T Tveraa, NG Yoccoz, RA Ims

Journal of Applied Ecology 56 p. 1245-1255

2019

Arctic greening and bird nest predation risk across tundra ecotones

RA Ims, J-A Henden, MA Strømeng, AV Thingnes, MJ Garmo, JU Jepsen

Nature Climate Change 9 p. 607-610

2018

Transferability of biotic interactions: Temporal consistency of arctic plant–rodent relationships is poor

EM Soininen, J-A Henden, VT Ravolainen, NG Yoccoz, KA Bråthen, ST Killengreen, RA Ims

Ecology and Evolution 8 p. 9697-9711

2018

Seasonal difference in temporal transferability of an ecological model: near-term predictions of lemming outbreak abundances

EF Kleiven, J-A Henden, RA Ims, NG Yoccoz

Scientific Report 8 p. 15252

2017

The database of the PREDICTS (projecting responses of ecological diversity in changing terrestrial systems) project

Lawrence N Hudson, Tim Newbold, Sara Contu, Samantha LL Hill, Igor Lysenko, Adriana De Palma, Helen RP Phillips, Tamera I Alhusseini, Felicity E Bedford, Dominic J Bennett, Hollie Booth, Victoria J Burton, Charlotte WT Chng, Argyrios Choimes, David LP Correia, Julie Day, Susy Echeverría‐Londoño, Susan R Emerson, Di Gao, Morgan Garon, Michelle LK Harrison, Daniel J Ingram, Martin Jung, Victoria Kemp, Lucinda Kirkpatrick, Callum D Martin, Yuan Pan, Gwilym D Pask‐Hale, Edwin L Pynegar, Alexandra N Robinson, Katia Sanchez‐Ortiz, Rebecca A Senior, Benno I Simmons, Hannah J White, Hanbin Zhang, Job Aben, Stefan Abrahamczyk, Gilbert B Adum, Virginia Aguilar‐Barquero, Marcelo A Aizen, Belén Albertos, EL Alcala, Maria del Mar Alguacil, Audrey Alignier, Marc Ancrenaz, Alan N Andersen, Enrique Arbeláez‐Cortés, Inge Armbrecht, Víctor Arroyo‐Rodríguez, Tom Aumann, Jan C Axmacher, Badrul Azhar, Adrián B Azpiroz, Lander Baeten, Adama Bakayoko, András Báldi, John E Banks, Sharad K Baral, Jos Barlow, Barbara IP Barratt, Lurdes Barrico, Paola Bartolommei, Diane M Barton, Yves Basset, Péter Batáry, Adam J Bates, Bruno Baur, Erin M Bayne, Pedro Beja, Suzan Benedick, Åke Berg, Henry Bernard, Nicholas J Berry, Dinesh Bhatt, Jake E Bicknell, Jochen H Bihn, Robin J Blake, Kadiri S Bobo, Roberto Bóçon, Teun Boekhout, Katrin Böhning‐Gaese, Kevin J Bonham, Paulo AV Borges, Sérgio H Borges, Céline Boutin, Jérémy Bouyer, Cibele Bragagnolo, Jodi S Brandt, Francis Q Brearley, Isabel Brito, Vicenç Bros, Jörg Brunet, Grzegorz Buczkowski, Christopher M Buddle, Rob Bugter, Erika Buscardo, Jörn Buse, Jimmy Cabra‐García, Nilton C Cáceres, Nicolette L Cagle, María Calviño‐Cancela, Sydney A Cameron, Eliana M Cancello, Rut Caparrós, Pedro Cardoso, Dan Carpenter, Tiago F Carrijo, Anelena L Carvalho, Camila R Cassano, Helena Castro, Alejandro A Castro‐Luna, Cerda B Rolando, Alexis Cerezo, Kim Alan Chapman, Matthieu Chauvat, Morten Christensen, Francis M Clarke, Daniel FR Cleary, Giorgio Colombo, Stuart P Connop, Michael D Craig, Leopoldo Cruz‐López, Saul A Cunningham, Biagio d'Aniello, Neil d'Cruze, Pedro Giovâni Da Silva, Martin Dallimer, Emmanuel Danquah, Ben Darvill, Jens Dauber, Adrian LV Davis, Jeff Dawson, Claudio De Sassi, Benoit De Thoisy, Olivier Deheuvels, Alain Dejean, Jean‐Louis Devineau, Tim Diekötter, Jignasu V Dolia, Erwin Domínguez, Yamileth Dominguez‐Haydar, Silvia Dorn, Isabel Draper, Niels Dreber, Bertrand Dumont, Simon G Dures, Mats Dynesius, Lars Edenius, Paul Eggleton, Felix Eigenbrod

Ecology and Evolution 7 p. 145-188

2017

Changed Arctic‐alpine food web interactions under rapid climate warming: Implication for ptarmigan research

J-A Henden, RA Ims, E Fuglei, ÅØ Pedersen

Wildlife Biology 2017 p. 1-11

2017

Ecosystem drivers of an Arctic fox population at the western fringe of the Eurasian Arctic

RA Ims, ST Killengreen, D Ehrich, Ø Flagstad, S Hamel, J-A Henden, .

Polar Research 36 p. 8

2017

Not only mosses: lemming winter diets as described by DNA metabarcoding

EM Soininen, L Zinger, L Gielly, NG Yoccoz, J-A Henden, RA Ims

Polar Biology 40 p. 2097-2103

2014

Demographic responses of a site‐faithful and territorial predator to its fluctuating prey: long‐tailed skuas and arctic lemmings

F Barraquand, TT Høye, J-A Henden, NG Yoccoz, O Gilg, NM Schmidt, B Sittler, RA Ims

Journal of Animal Ecology 83 p. 375-387

2014

Community‐wide mesocarnivore response to partial ungulate migration

J-A Henden, A Stien, BJ Bårdsen, NG Yoccoz, RA Ims

Journal of Applied Ecology 51 p. 1525-1533

2014

The PREDICTS database: a global database of how local terrestrial biodiversity responds to human impacts

Lawrence N Hudson, Tim Newbold, Sara Contu, Samantha LL Hill, Igor Lysenko, Adriana De Palma, Helen RP Phillips, Rebecca A Senior, Dominic J Bennett, Hollie Booth, Argyrios Choimes, David LP Correia, Julie Day, Susy Echeverría‐Londoño, Morgan Garon, Michelle LK Harrison, Daniel J Ingram, Martin Jung, Victoria Kemp, Lucinda Kirkpatrick, Callum D Martin, Yuan Pan, Hannah J White, Job Aben, Stefan Abrahamczyk, Gilbert B Adum, Virginia Aguilar‐Barquero, Marcelo A Aizen, Marc Ancrenaz, Enrique Arbeláez‐Cortés, Inge Armbrecht, Badrul Azhar, Adrián B Azpiroz, Lander Baeten, András Báldi, John E Banks, Jos Barlow, Péter Batáry, Adam J Bates, Erin M Bayne, Pedro Beja, Åke Berg, Nicholas J Berry, Jake E Bicknell, Jochen H Bihn, Katrin Böhning‐Gaese, Teun Boekhout, Céline Boutin, Jérémy Bouyer, Francis Q Brearley, Isabel Brito, Jörg Brunet, Grzegorz Buczkowski, Erika Buscardo, Jimmy Cabra‐García, María Calviño‐Cancela, Sydney A Cameron, Eliana M Cancello, Tiago F Carrijo, Anelena L Carvalho, Helena Castro, Alejandro A Castro‐Luna, Rolando Cerda, Alexis Cerezo, Matthieu Chauvat, Frank M Clarke, Daniel FR Cleary, Stuart P Connop, Biagio d'Aniello, Pedro Giovâni da Silva, Ben Darvill, Jens Dauber, Alain Dejean, Tim Diekötter, Yamileth Dominguez‐Haydar, Carsten F Dormann, Bertrand Dumont, Simon G Dures, Mats Dynesius, Lars Edenius, Zoltán Elek, Martin H Entling, Nina Farwig, Tom M Fayle, Antonio Felicioli, Annika M Felton, Gentile F Ficetola, Bruno KC Filgueiras, Steven J Fonte, Lauchlan H Fraser, Daisuke Fukuda, Dario Furlani, Jörg U Ganzhorn, Jenni G Garden, Carla Gheler‐Costa, Paolo Giordani, Simonetta Giordano, Marco S Gottschalk, Dave Goulson, Aaron D Gove, James Grogan, Mick E Hanley, Thor Hanson, Nor R Hashim, Joseph E Hawes, Christian Hébert, Alvin J Helden, John‐André Henden, Lionel Hernández, Felix Herzog, Diego Higuera‐Diaz, Branko Hilje, Finbarr G Horgan, Roland Horváth, Kristoffer Hylander, Paola Isaacs‐Cubides, Masahiro Ishitani, Carmen T Jacobs, Víctor J Jaramillo, Birgit Jauker, Mats Jonsell, Thomas S Jung, Vena Kapoor, Vassiliki Kati, Eric Katovai, Michael Kessler, Eva Knop, Annette Kolb, Ádám Kőrösi, Thibault Lachat, Victoria Lantschner, Violette Le Féon, Gretchen LeBuhn, Jean‐Philippe Légaré, Susan G Letcher, Nick A Littlewood, Carlos A López‐Quintero, Mounir Louhaichi, Gabor L Lövei, Manuel Esteban Lucas‐Borja, Victor H Luja, Kaoru Maeto, Tibor Magura, Neil Aldrin Mallari, Erika Marin‐Spiotta, EJP Marshall, Eliana Martínez, Margaret M Mayfield, Grzegorz Mikusinski, Jeffrey C Milder

Ecology and Evolution 4 p. 4701-4735

2013

Shedding new light on the diet of Norwegian lemmings: DNA metabarcoding of stomach content

EM Soininen, L Zinger, L Gielly, E Bellemain, KA Bråthen, C Brochmann, LS Epp, G Gussarova, KH, J-A Henden, ST Killengreen, T Rämä, HK Stenøien, NG Yoccoz, RA Ims

Polar Biology 36 p. 1069-1076

2013

Towards good practice guidance in using camera‐traps in ecology: influence of sampling design on validity of ecological inferences

S Hamel, ST Killengreen, J-A Henden, NE Eide, L Roed‐Eriksen, RA Ims, NG Yoccoz

Methods in Ecology and Evolution 4 p. 105-113

2013

Disentangling the importance of interspecific competition, food availability, and habitat in species occupancy: recolonization of the endangered Fennoscandian arctic fox

S Hamel, ST Killengreen, J-A Henden, NG Yoccoz, RA Ims

Biological conservation 160 p. 114-120

2013

How spatial variation in areal extent and configuration of labile vegetation states affect the riparian bird community in Arctic tundra

J-A Henden, NG Yoccoz, RA Ims, K Langeland

PLoS One 8 p. e63312

2013

Indirect food web interactions mediated by predator–rodent dynamics: relative roles of lemmings and voles

RA Ims, J-A Henden, AV Thingnes, ST Killengreen

Biology Letters 9 p. 20130802

2012

The importance of willow thickets for ptarmigan and hares in shrub tundra: the more the better?

D Ehrich, JA Henden, RA Ims, LO Doronina, ST Killengren, N Lecomte, IG Pokrovsky, G Skogstad, AA Sokolov, VA Sokolov, NG Yoccoz

Oecologia 168 p. 141-151

2012

Collapse of an arctic bird community resulting from ungulate-induced loss of erect shrubs

RA Ims, J-A Henden

Biological conservation 149 p. 2-5

2012

The nature of lemming cycles on Wrangel: an island without small mustelids

IE Menyushina, D Ehrich, JA Henden, RA Ims, NG Ovsyanikov

Oecologia 170 p. 363-371

2011

Plastic reproductive allocation as a buffer against environmental stochasticity–linking life history and population dynamics to climate

BJ Bårdsen, J-A Henden, P Fauchald, T Tveraa, A Stien

Oikos 120 p. 245-257

2011

Population dynamics of tundra voles in relation to configuration of willow thickets in southern arctic tundra

J-A Henden, RA Ims, NG Yoccoz, R Sørensen, ST Killengreen

Polar Biology 34 p. 533-540

2011

Declining willow ptarmigan populations: the role of habitat structure and community dynamics

J-A Henden, RA Ims, NG Yoccoz, ST Killengreen

Basic and Applied Ecology 12 p. 413-422

2011

Rapid, landscape scale responses in riparian tundra vegetation to exclusion of small and large mammalian herbivores

VT Ravolainen, KA Bråthen, RA Ims, NG Yoccoz, J-A Henden, ST Killengreen

Basic and Applied Ecology 12 p. 643-653

2010

Strength of asymmetric competition between predators in food webs ruled by fluctuating prey: the case of foxes in tundra

J-A Henden, RA Ims, NG Yoccoz, P Hellström, A Angerbjörn

Oikos 119 p. 27-34

2009

Nonstationary spatio‐temporal small rodent dynamics: evidence from long‐term Norwegian fox bounty data

J-A Henden, RA Ims, NG Yoccoz

Journal of Animal Ecology 78 p. 636-645

2009

Individual quality and reproductive effort mirrored in white wing plumage in both sexes of south polar skuas

SA Hanssen, JO Bustnes, T Tveraa, D Hasselquist, Ø Varpe, J-A Henden

Behavioral Ecology 20 p. 961-966

2009

Phase-dependent effect of conservation efforts in cyclically fluctuating populations of arctic fox (Vulpes lagopus)

J-A Henden, NG Yoccoz, RA Ims, BJ Bårdsen, A Angerbjörn

Biological Conservation 142 p. 2586-2592

2008

Collapsing population cycles

RA Ims, JA Henden, ST Killengreen

Trends in Ecology & Evolution 23 p. 79-86

2008

Impacts of differential prey dynamics on the potential recovery of endangered arctic fox populations

J-A Henden, BJ Bårdsen, NG Yoccoz, RA Ims

Journal of Applied Ecology 45 p. 1086-1093

2007

Structural characteristics of a low Arctic tundra ecosystem and the retreat of the Arctic fox

ST Killengreen, RA Ims, NG Yoccoz, KA Bråthen, J-A Henden, T Schott

Biological Conservation 135 p. 459-472

2007

Reproductive performance and organochlorine pollutants in an Antarctic marine top predator: the south polar skua

JO Bustnes, T Tveraa, Ø Varpe, J-A Henden, JU Skaare

Environment International 33 p. 911-918

2006

Organochlorines in Antarctic and Arctic avian top predators: a comparison between the south polar skua and two species of northern hemisphere gulls

JO Bustnes, T Tveraa, J-A Henden, Ø Varpe, K Janssen, JU Skaare

Environmental science & technology 40 p. 2826-2831

2001

Nest attendance and foraging movements of northern fulmars rearing chicks at Bjørnøya Barents Sea

H Weimerskirch, O Chastel, Y Cherel, J-A Henden, T Tveraa

Polar Biology 24 p. 83-88

Academic lectures

2018

The need of evidence-based management: the case of the of the Lesser White-Fronted Goose in Northern Norway

F Marolla, T Aarvak, JA Henden, S Hamel, RA Ims, JP Mellard, IJ Øien,

ECCB2018: 5th European Congress of Conservation Biology

2014

Revising the specialist and generalist predation hypotheses: examples from the Arctic

F Barraquand, J-A Henden, O Gilg, RA Ims, NG Yoccoz

9th European Conference on Mathematical and Theoretical Biology

Reports and dissertations

2013

Fjellrev i Finnmark: Årsrapport 2013

RA Ims, ST Killengreen, I Jensvoll, NG Yoccoz, JA Henden, A Arriola, , T Mørk, AP Sarre, A Ørjebu, BH Kristoffersen, Å Bye

Miljødirektoratet

2013

Prosjekt ‘‘Fjellrev i Finnmark’’: Rapport for 2008-2012

ST Killengreen, RA Ims, JA Henden, NG Yoccoz, D Ehrich

Miljødirektoratet

2009

Changing circumstances: implications for trophic dynamics and species conservation in the Fennoscandian tundra

JA Henden

PhD: Universitetet i Tromsø

2008

Fjellrev i Finnmark: årsrapport for 2008

RA Ims, K Knutsen, T Mørk, ST Killengreen, NG Yoccoz, AP Sarre, A Ørjebu, J-A Henden

Miljødirektoratet

2007

Prosjekt” Fjellrev i Finnmark”: rapport for perioden 2004-2007

RA Ims, ST Killengreen, JA Henden, NG Yoccoz

Miljødirektoratet

2006

Fjellrev i Finnmark: Forskning og tiltak 2006

K Knutsen, RA Ims, T Mørk, ST Killengreen, K Langeland, NG Yoccoz, J-A Henden, V Ravolainen

Miljødirektoratet

2005

Fjellrev i Finnmark: Forskning og tiltak 2005

E Skog, RA Ims, ST Killengreen, JO Scheie, NG Yoccoz, T Mørk, K Langeland, J-A Henden, V Ravolainen

Miljødirektoratet

2004

Prosjekt” Fjellrev i Finnmark” - Årsrapport 2004

RA Ims, ST Killengreen, J-A Henden, NG Yoccoz

Miljødirektoratet

1999

The influence of egg-size and parental body mass on early chick development in the Northern fulmar, Fulmarus glacialis.

J-A Henden

Cand. Scient. Universitetet i Tromsø

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John-André Henden

Ecologist

Publications:

https://scholar.google.com/citations?user=fDEkdsgAAAAJ

Subjectarea

Research group: Marine mammals

- Population and food web dynamics

- Estimation of population size of Harp and Hooded seals in the west and east ice, etc.

Curriculum Vitae

Researcher at Institute of Marine Research (IMR) (2023-)

Researcher at the University of Tromsø (UiT) (2013-2022)

Post doc at the University of Tromsø (UiT), prosjekt:

”Ecosystem Finnmark (EcoFinn): Ungulate overabundance, trophic cascades and spatial subsidies” (2010-2013)

Philosophia Doctor (PhD) in Ecology at the University of Tromsø (UiT) (2005-2009). Thesis:

"Changing circumstances: Implications for trophic dynamics and species conservation on the Fennoscandian Tundra"

Publications

Academic articles

A Dynamic Occupancy Model for Interacting Species with Two Spatial Scales

Food web approach for managing Arctic wildlife populations in an era of rapid environmental change

Direct and indirect effects of environmental drivers on reindeer reproduction

Environmental effects on spatial population dynamics and synchrony: lessons from northern ecosystems

The Traill island model for lemming dynamics, how it compares to Fennoscandian vole dynamics models, and a proposed simplification

Accounting for food web dynamics when assessing the impact of mesopredator control on declining prey populations

Iterative model predictions for wildlife populations impacted by rapid climate change

Effect of scavenging on predation in a food web

A dynamic occupancy model for interacting species with two spatial scales

Circumpolar status of Arctic ptarmigan: population dynamics and trends

End‐user involvement to improve predictions and management of populations with complex dynamics and multiple drivers

Assessing the effect of predator control on an endangered goose population subjected to predator‐mediated food web dynamics

Arctic greening and bird nest predation risk across tundra ecotones

Transferability of biotic interactions: Temporal consistency of arctic plant–rodent relationships is poor

Seasonal difference in temporal transferability of an ecological model: near-term predictions of lemming outbreak abundances

The database of the PREDICTS (projecting responses of ecological diversity in changing terrestrial systems) project

Changed Arctic‐alpine food web interactions under rapid climate warming: Implication for ptarmigan research

Ecosystem drivers of an Arctic fox population at the western fringe of the Eurasian Arctic

Not only mosses: lemming winter diets as described by DNA metabarcoding

Demographic responses of a site‐faithful and territorial predator to its fluctuating prey: long‐tailed skuas and arctic lemmings

Community‐wide mesocarnivore response to partial ungulate migration

The PREDICTS database: a global database of how local terrestrial biodiversity responds to human impacts

Shedding new light on the diet of Norwegian lemmings: DNA metabarcoding of stomach content

Towards good practice guidance in using camera‐traps in ecology: influence of sampling design on validity of ecological inferences

Disentangling the importance of interspecific competition, food availability, and habitat in species occupancy: recolonization of the endangered Fennoscandian arctic fox

How spatial variation in areal extent and configuration of labile vegetation states affect the riparian bird community in Arctic tundra

Indirect food web interactions mediated by predator–rodent dynamics: relative roles of lemmings and voles

The importance of willow thickets for ptarmigan and hares in shrub tundra: the more the better?

Collapse of an arctic bird community resulting from ungulate-induced loss of erect shrubs

The nature of lemming cycles on Wrangel: an island without small mustelids

Plastic reproductive allocation as a buffer against environmental stochasticity–linking life history and population dynamics to climate

Population dynamics of tundra voles in relation to configuration of willow thickets in southern arctic tundra

Declining willow ptarmigan populations: the role of habitat structure and community dynamics

Rapid, landscape scale responses in riparian tundra vegetation to exclusion of small and large mammalian herbivores

Strength of asymmetric competition between predators in food webs ruled by fluctuating prey: the case of foxes in tundra

Nonstationary spatio‐temporal small rodent dynamics: evidence from long‐term Norwegian fox bounty data

Individual quality and reproductive effort mirrored in white wing plumage in both sexes of south polar skuas

Phase-dependent effect of conservation efforts in cyclically fluctuating populations of arctic fox (Vulpes lagopus)

Collapsing population cycles

Impacts of differential prey dynamics on the potential recovery of endangered arctic fox populations

Structural characteristics of a low Arctic tundra ecosystem and the retreat of the Arctic fox

Reproductive performance and organochlorine pollutants in an Antarctic marine top predator: the south polar skua

Organochlorines in Antarctic and Arctic avian top predators: a comparison between the south polar skua and two species of northern hemisphere gulls

Nest attendance and foraging movements of northern fulmars rearing chicks at Bjørnøya Barents Sea

Academic lectures

The need of evidence-based management: the case of the of the Lesser White-Fronted Goose in Northern Norway

Revising the specialist and generalist predation hypotheses: examples from the Arctic

Reports and dissertations

Fjellrev i Finnmark: Årsrapport 2013

Prosjekt ‘‘Fjellrev i Finnmark’’: Rapport for 2008-2012

Changing circumstances: implications for trophic dynamics and species conservation in the Fennoscandian tundra

Fjellrev i Finnmark: årsrapport for 2008

Prosjekt” Fjellrev i Finnmark”: rapport for perioden 2004-2007

Fjellrev i Finnmark: Forskning og tiltak 2006

Fjellrev i Finnmark: Forskning og tiltak 2005

Prosjekt” Fjellrev i Finnmark” - Årsrapport 2004

The influence of egg-size and parental body mass on early chick development in the Northern fulmar, Fulmarus glacialis.

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