Ivar Herfindal

Emailivar.herfindal@bio.ntnu.no
Phone+47 73596253
Office addressRealfagbygget*DU1-170, Høgskoleringen 5
PositionResearcher
UnitDepartment of Biology


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Post-Doc. in population ecology

My research focuses mainly on how spatial and temporal variation in the environment influence individuals as well as populations. I have in particular looked at how habitat characteristics, e.g. related to forage availability, influence on life history traits and habitat selection, and how individual responses to spatio-temporal variation in the environment in the end influence the population. My projects are linked to the Centre for Conservation Biology at the department of Biology, NTNU. In most of my research, I collaborate closely with the Norwegian institute for nature research (NINA). 

Publications:

  1. Bjørneraas, K., Herfindal, I., Solberg, E.J., Sæther, B.-E., van Moorter, B. & Rolandsen, C.M. 2012. Habitat quality influences population distribution, individual space use and functional response in habitat selection by a large herbivore. Oecologia 168 (1): 231-243. DOI:10.1007/s00442-011-2072-3
  2. Rolandsen, C.M., Solberg, E.J., Herfindal, I., Van Moorter, B. & Sæther, B.-E. 2011. Large-scale spatiotemporal variation in road mortality of moose: Is it all about population density? Ecosphere 2 (10):art113.
  3. Hansen, B.B., Aanes, R., Herfindal, I., Kohler, J. & Sæther, B.-E. (2011) Climate, icing, and wild arctic reindeer: past relationships and future prospects. Ecology 92 (10): 1917-1923. DOI:10.1890/11-0095.1
  4. Haanes, H., Røed, K.H., Solberg, E.J., Herfindal, I. & Sæther, B.-E. (2011) Genetic discontinuities in a continuously distributed and highly mobile ungulate, the Norwegian moose. Conservation Genetics 12 (5): 1131-1143. DOI:10.1007/s10592-011-0214-0
  5. Bjørneraas, K., Solberg, E.J., Herfindal, I., Van Moorter, B., Rolandsen, C.M., Tremblay, J.-P., Skarpe, C., Sæther, B.-E., Eriksen, R. & Astrup, R. (2011) Moose Alces alces habitat use at multiple temporal scales in a human-altered landscape. Wildlife Biology 17 (1): 44-54. DOI:10.2981/10-073
  6. Solberg, E.J., Rolandsen, C.M., Heim, M., Linnell, J.D.C., Herfindal, I. & Sæther, B.-E. (2010) Age and sex-specific variation in detectability of moose (Alces alces) during the hunting season: implications for population monitoring. European Journal of Wildlife Research 56 (6): 871-881. DOI:10.1007/s10344-010-0385-x
  7. Herfindal, I., Linnell, J.D.C., Elmhagen, B., Andersen, R., Eide, N.E., Frafjord, K., Henttonen, H., Kaikusalo, A., Mela, M., Tannerfeldt, M., Dalén, L., Strand, O., Landa, A. & Angerbjörn, A. (2010) Population persistence in a landscape context: the case of endangered arctic fox populations in Fennoscandia. Ecography 33 (5): 932-941. DOI:10.1111/j.1600-0587.2009.05971.x
  8. Panzacchi, M., Herfindal, I., Linnell, D.D.C., Odden, M., Odden, J. and Andersen, R. (2010) Trade-offs between maternal foraging and fawn predation risk in an income breeder. Behavioral Ecology and Sociobiology 64 (8): 1267-1278. DOI:10.1007/s00265-010-0941-0
  9. Melis C., Basille, M., Herfindal I., Linnell J.D.C., Odden, J., Gaillard, J.-M., Høgda K.-A. & Andersen R. (2010) Roe deer population growth and lynx predation along a gradient of environmental productivity and climate in Norway. Ecoscience 17 (2): 166-174. DOI:10.2980/17-2-3314
  10. Bjørneraas, K., Van Moorter, B., Rolandsen, C.M. & Herfindal, I. (2010) Screening GPS location data for errors using animal movement characteristics. Journal of Wildlife Management 74 (6): 1261-1366. DOI:10.2193/2009-405
  11. Lande, U.S., Herfindal, I., Finne, M.H. & Kastdalen, L. (2010) Use of hunters in wildlife surveys: Does hunters and forest grouse habitat selection coincide? European Journal of Wildlife Research 56 (2) 107-115. DOI:10.1007/s10344-009-0291-2
  12. Melis, C., Herfindal, I., Kauhala, K., Andersen, R. & Høgda, K.-A. (2010) Predicting animal performance through climatic and plant phenology variables: The case of an omnivore hibernating species in Finland. Mammalian Biology 75 (2): 151-159. DOI:10.1016/j.mambio.2008.12.001
  13. Lykkja, O.N., Solberg, E.J., Herfindal, I., Wright, J., Rolandsen, C.M. & Hanssen, M.G. (2009) The effects of human activity on summer habitat use by moose. Alces  45 (1): 109-125. >>
  14. Herfindal I., Tremblay, J.-P., Hansen, B.B., Solberg, E.J., Heim, M. & Sæther, B.-E. (2009) Scale dependency and functional response in moose habitat selection. Ecography 32 (5): 849-859. DOI:10.1111/j.0906-7590.2009.05783.x
  15. Basille, M.,  Herfindal I., Santin-Janin H., Linnell J.D.C., Odden J., Andersen R., Høgda K. A., & Gaillard J.-M. (2009) What shapes Eurasian lynx distribution in human dominated landscapes: selecting prey or avoiding people? Ecography 32 (4) 683-691. DOI:10.1111/j.1600-0587.2009.05712.x
  16. Bjørneraas, K., Solberg, E.J., Herfindal, I. & Sæther, B.-E. (2009) Large scale spatiotemporal variation in calf sex ratio in moose (Alces alces): an effect of density-dependent decrease in maternal condition? Canadian Journal of Zoology 87 (4): 346-355. DOI:10.1139/Z09-017
  17. Hansen, B.B., Aanes, R., Herfindal, I., Sæther, B.-E. & Henriksen, S. (2009) Winter habitat-space use in a large arctic herbivore facing contrasting forage abundance. Polar Biology 32 (7): 971-984. DOI:10.1007/s00300-009-0597-2
  18. Hansen, B.B., Herfindal, I., Aanes, R., Sæther, B.-E. & Henriksen, S. (2009) Functional response in habitat selection and the trade-offs between foraging niche components in a large herbivore. Oikos 118 (6): 859-872. DOI:10.1111/j.1600-0706.2009.17098.x
  19. Moe, T., Solberg, E.J., Herfindal, I., Sæther, B.-E., Bjørneraas, K. & Heim, M. (2009) Sex ratio variation in harvested moose (Alces alces) calves: does it reflect population calf sex ratio or selective hunting? European Journal of Wildlife Research 55 (3): 217-226. DOI:10.1007/s10344-008-0223-6
  20. Odden, J., Herfindal, I., Linnell, J.D.C. & Andersen, R. (2008) Vulnerability of domestic sheep to lynx depredation in relation to roe deer density. Journal of Wildlife Management 72 (1): 276-282. DOI:10.2193/2005-537
  21. Linnell, J.D.C., Fiske, P., Herfindal, I., Odden, J., Brøseth, H. & Andersen, R. (2007) An evaluation of structured snow-track surveys to monitor Eurasian lynx Lynx lynx populations. Wildlife Biology 13 (4): 456-466. DOI:10.2981/0909-6396(2007)13[456:AEOSSS]2.0.CO;2
  22. Herfindal, I., Solberg, E.J., Sæther, B.-E., Høgda, K.A. & Andersen, R. (2006). Environmental phenology and geographical gradients in moose body mass. Oecologia 150 (2): 213-224. DOI:10.1007/s00442-006-0519-8
  23. Herfindal, I., Sæther, B.-E., Solberg, E.J., Andersen, R. & Høgda, K.A. (2006) Population characteristics predict responses in moose body mass to temporal variation in the environment. Journal of Animal Ecology 75 (5): 1110-1118. DOI:10.1111/j.1365-2656.2006.01138.x
  24. Moa, P.F., Herfindal, I., Linnell, J.D.C., Overskaug, K., Kvam, T. & Andersen, R. (2006) Does the spatiotemporal distribution of livestock influence forage patch selection in Eurasian lynx Lynx lynx? Wildlife Biology 12 (1): 63-70. DOI:10.2981/0909-6396(2006)12[63:DTSDOL]2.0.CO;2
  25. Garel, M., Solberg, E.J., Sæther, B.-E., Herfindal, I. & Høgda, K.A. (2006) The length of growing season and adult sex-ratio affect sexual size dimorphism in moose. Ecology 87 (3): 745-758. DOI:10.1890/05-0584
  26. Herfindal, I., Linnell, J.D.C., Moa, P.F., Odden, J., Austmo, L.B. & Andersen, R. (2005) Does recreational hunting of lynx reduce depredation losses of domestic sheep? Journal of Wildlife Management 69 (3): 1034-1042. DOI:10.2193/0022-541X(2005)069[1034:DRHOLR]2.0.CO;2
  27. Herfindal, I., Linnell, J.D.C., Odden, J., Nilsen, E.B. & Andersen, R. (2005) Prey density and environmental productivity explain variation in Eurasian lynx home range size at two spatial scales. Journal of Zoology 265 (1): 63-71. DOI:10.1017/S0952836904006053
  28. Nilsen, E.B., Herfindal, I. & Linnell, J.D.C. (2005) Can intra-specific variation in carnivore home-range size be explained using remote sensing estimates of environmental productivity? Ecoscience 12 (1): 68-75. DOI:10.2980/i1195-6860-12-1-68.1
  29. Andersen, R., Herfindal, I., Linnell, J.D.C., Odden, J., Liberg, O. & Sæther, B.-E. (2004) When range expansion rate is faster in marginal habitats. Oikos 107 (1): 210-214. DOI:10.1111/j.0030-1299.2004.13129.x
  30. Odden, J., Linnell, J.D.C., Moa, P.F., Herfindal, I., Kvam, T. & Andersen, R. (2002) Lynx depredation on domestic sheep in Norway. Journal of Wildlife Management 66 (1): 98-105. DOI:10.2307/3802876