Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2023
Abstract
Supplemental feeding of cervids during winter is a widespread management practice, but feeding may increase the risk of disease transmission. Therefore, legal regulations to limit supplemental feeding are often implemented when dealing with severe infectious diseases, such as chronic wasting disease (CWD) in cervids. However, it is currently unclear whether these regulations result in decreased spatial clustering and aggregation as intended. Supplemental feeding is expected to restrict the movement of cervids. Therefore, a ban on feeding may also result in wider space use and a risk of geographic spread of disease. The space use of 63 GPS-marked red deer (Cervus elaphus) was investigated before (n = 34) and after (n = 29) the implementation of a legal regulation aimed at limiting the supplemental feeding of cervids during winter in a CWD-affected region of Nordfjella, Norway. Snow depth was the main determinant of the space use for red deer. A moderate reduction in the number of GPS positions in spatial clusters was evident during periods of deep snow once the ban was in place. Sizes of core areas (Kernel 50%), home ranges (Kernel 95%), and dispersion (MCP 100%, number of 1 km2 pixels visited per deer) declined from January to March and with increasing snow depth. Dispersion (number of 1 km2 pixels visited per deer) did not depend on snow depth after the ban, and red deer used larger areas when snow depth was high after the ban compared to before. The ban on supplementary feeding had no effect on size of core areas or home ranges. Several potential factors can explain the overall weak effect of the ban on space use, including the use of agricultural fields by red deer, other anthropogenic feeding, and landscape topography. This study highlights that snow depth is the main factor determining space use during winter, and it remains to be determined whether the moderate reduction in spatial clustering during deep snow after the ban was sufficient to lower the risk of disease transmission.
Authors
Jo Jorem AarsethAbstract
In northern Norway, an increasing population of Greylag Geese (Anser anser) forages considerably on dairy grassland and can eat up to 60% of the grass (dry matter mass) on a field if allowed to eat undisturbed throughout the growing season. In this study, the seasonal foraging behavior of Greylag Geese on diary grassland was continuously monitored with game cameras from late April to the end of August to be able to pinpoint effective preventive measures to manage, control, and prevent this crop damage. Limited, but regular, lethal scaring was conducted on some fields to reveal the preventive effect of this measure. Foraging from Greylag Geese in a rangeland area was also monitored, and a complete dataset of seasonal foraging behavior of this species is presented here. Greylag Geese foraging on the fields reaches a top between 04:00 and 08:00 h am, all season. Energy and digestibility of the field grass (timothy) did not reveal any correlation with grazing patterns. Greylag Geese do not visit the fields during molting; however, they may visit fields with their chicks to forage. Lethal scaring completely removes visits from Greylag Geese on the fields where this is conducted, while foraging continues if geese are given undisturbed access. In the rangeland area foraging seems to be even and continuous throughout the season, but significantly lower. In the end of June and late July/early August, there is a peak in visits and number of geese per visit on the fields. Preventive and effective measures against crop damage from Greylag Geese must therefore at least be initiated during late June and early August, and between 04:00 and 08:00 am.
Authors
Unni Støbet LandeAbstract
No abstract has been registered
Authors
Henriikka Salminen Helena Tukiainen Janne Alahuhta Jan Hjort Karoliina Huusko John Arvid Grytnes Laura Camila Pacheco Riano Jutta Kapfer Risto Virtanen Tuija MaliniemiAbstract
Context Recent studies show that geodiversity—the diversity of Earth's landforms, materials, and processes—has a positive relationship with biodiversity at a landscape scale. However, there is a substantial lack of evidence from finer scales, although this knowledge could improve the understanding of biodiversity patterns. Objectives We investigate whether plot-scale geodiversity and plant species richness (vascular plants, bryophytes, lichens, and total richness) are positively linked in different tundra landscapes. Methods We collected geodiversity (presence of different geofeatures) and plant species richness data from 165 sites in three distinct regions: isolated low-lying mountain heaths, and in sporadic and continuous mountain heaths and tundra. We used non-metric multidimensional scaling (NMDS) ordination to explore the correlations between the composition of geofeatures and species richness, followed by univariate and multivariate generalized linear models (GLM), to assess whether georichness is important for species richness. Results Geofeature composition was linked to species richness in all regions, as indicated by NMDS ordination. Both univariate and multivariate GLM models showed statistically significant relationship between species richness and georichness in all studied species richness groups in continuous Arctic-alpine tundra. Additionally, there was a positive link between georichness and lichen richness in isolated boreal mountain tops. Main conclusions We showed that plot-scale geodiversity has a positive relationship with species richness, yet the effect varies regionally and between species groups. Our study provides strong empirical evidence that geodiversity supports species richness in continuous Arctic-alpine tundra. This information can be used in species richness models but also be applied in biodiversity management and conservation.
Authors
Tomáš Peterka Petra Hájková Martin Jiroušek Dirk Hinterlang Milan Chytrý Liene Aunina Judit Deme Melinda Lyons Hallie Seiler Harald Zechmeister Iva Apostolova Carl Beierkuhnlein Melanie Bischof Claudia Biţă-Nicolae Lisa Brancaleoni Renata Ćušterevska Jürgen Dengler Yakiv Didukh Daniel Dítě Lyubov Felbaba-Klushyna Emmanuel Garbolino Renato Gerdol Svitlana Iemelianova Florian Jansen Riikka Juutinen Jasmina Kamberović Jutta Kapfer Barbora Klímová Ilona Knollová Tiina H.M. Kolari Predrag Lazarević Ringa Luostarinen Eva Mikulášková Đorđije Milanović Luca Miserere Jesper Erenskjold Moeslund José A. Molina Aaron Pérez-Haase Alessandro Petraglia Marta Puglisi Eszter Ruprecht Eva Šmerdová Daniel Spitale Marcello Tomaselli Kiril Vassilev Michal HájekAbstract
No abstract has been registered
Authors
Marlee A. Tucker Aafke M. Schipper Tempe S.F. Adams Nina Attias Tal Avgar Natarscha L. Babic Kristin J. Barker Guillaume Bastille-Rousseau Dominik M. Behr Jerrold L. Belant Dean E. Beyer Jr. Niels Blaum J. David Blount Dirk Bockmuhl Ricardo Luiz Pires Boulhosa Michael B. Brown Bayarbaatar Buuveibaatar Francesca Cagnazzi Justin M. Calabrese Rok Cerne Simon Chamaillé-Jammes Aung Nyein Chan Michael J. Chase Yannick Chaval Yvette Chenaux-Ibrahim Seth G. Cherry Dusko Cirovic Emrah Coban Eric K. Cole Laura Conlee Alyson Courtemanch Gabriele Cozzi Sarah C. Davidson Darren DeBloois Nandintsetseg Dejid Vickie DeNicola Arnaud L.J. Desbiez Iain Douglas-Hamilton David Drake Michael Egan Jasper A.J. Eikelboom William F. Fagan Morgan J. Farmer Julian Fennessy Shannon P. Finnegan Christen H. Fleming Bonnie Fournier Nicholas L. Fowler Mariela G. Gantchoff Alexandre Garnier Morten Heim Marco Dietmar Heurich Petra Kaczensky Jonas Kindberg John Durrus Linnell Erling Meisingset Bram Van Moorter Atle Mysterud Manuela Panzacchi Christer Moe Rolandsen Erling Johan Solberg Olav Strand Peter Sunde Nathan J. Svoboda Jonathan Swart Jeffrey J. Thompson Katrina L. Toal Kenneth Uiseb Meredith C. VanAcker Marianela Velilla Tana L. Verzuh Bettina Wachter Brittany L. Wagler Jesse Whittington Martin Wikelski Christopher C. Wilmers George Wittemyer Julie K. Young Filip Zięba Tomasz Zwijacz-Kozica Mark A. J. Huijbregts Thomas MuellerAbstract
No abstract has been registered
Authors
Robert Spitzer Cecilia Åström Annika Felton Monica Eriksson Erling Meisingset Erling Johan Solberg Christer Moe RolandsenAbstract
Coprophagy, the eating of feces, has been documented in a wide range of species but appears to be rare or difficult to detect in deer (Cervidae). Here, we report the first observation of coprophagy in moose Alces alces, which was recorded using camera collars on free-ranging moose in Norway. The footage shows an instance of allocoprophagy by an adult female moose in spring (May). We summarize the current knowledge about coprophagy in deer and briefly discuss potential drivers and possible implications for disease transmission. Further research is needed to determine whether coprophagy occurs frequently in moose and whether this behavior is positive (e.g., increased intake of nutrients) or negative (increased infection by parasites or pathogens). Alces alces, camera collar, chronic wasting disease, coprophagy, foraging, moose
Authors
Atle Mysterud Erling Johan Solberg Erling Meisingset Manuela Panzacchi Geir Rune Rauset Olav Strand Bram Van Moorter Christer Moe Rolandsen Inger Maren RivrudAbstract
No abstract has been registered
Abstract
No abstract has been registered
2022
Abstract
Learn about the challenges and the beauty of farming on islands far off into the Norwegian sea. The material was prepared for the project EDU-ARCTIC 2: from polar research to scientific passion – innovative nature education in Poland and Norway, which receives a grant of ca. 240 000 EUR received from Iceland, Liechtenstein and Norway under EEA funds. View with VR goggles or look around by moving your smartphone or by dragging the image left and right with the mouse.