| 1. |
- Allen, Andrew, et al.
(författare)
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The impacts of landscape structure on the winter movements and habitat selection of female red deer
- 2014
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Ingår i: European Journal of Wildlife Research. - : Springer Science and Business Media LLC. - 1612-4642 .- 1439-0574. ; 60, s. 411-421
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Tidskriftsartikel (refereegranskat)abstract
- An area of research that has recently gained more attention is to understand how species respond to environmental change such as the landscape structure and fragmentation. Movement is crucial to select habitats but the landscape structure influences the movement patterns of animals. Characterising the movement characteristics, utilisation distribution (UD) and habitat selection of a single species in different landscapes can provide important insights into species response to changes in the landscape. We investigate these three fields in female red deer (Cervus elaphus) in southern Sweden, in order to understand how landscape structure influences their movement and feeding patterns. Movements are compared between two regions, one dominated by a fragmented agriculture-forest mosaic and the other by managed homogenous forest. Red deer in the agriculture-dominated landscape had larger UDs compared to those in the forest-dominated area, moved larger distances between feeding and resting and left cover later in the day but used a similar duration for their movements, suggesting faster travelling speeds between resting and feeding locations. The habitat selection patterns of red deer indicate a trade-off between forage and cover, selecting for habitats that provide shelter during the day and forage by night. However, the level of trade-off, mediated through movement and space use patterns, is influenced by the landscape structure. Our approach provides further understanding of the link between individual animal space use and changing landscapes and can be applied to many species able to carry tracking devices.
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| 2. |
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| 3. |
- Höglund, Jacob, et al.
(författare)
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Genetic variation and structure in Scandinavian red deer (Cervus elaphus) : influence of ancestry, past hunting, and restoration management
- 2013
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Ingår i: Biological Journal of the Linnean Society. - : Oxford University Press (OUP). - 0024-4066 .- 1095-8312. ; 109:1, s. 43-53
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Tidskriftsartikel (refereegranskat)abstract
- In the 19th century, the red deer (Cervus elaphus) population in Sweden experienced a rapid decline in numbers and distribution. A small population was, however, remnant in the southernmost province (Skane) of the country, presumably corresponding to the nominate form of red deer (Cervus elaphus elaphusLinnaeus, 1758). After management, reintroductions, and supplementary release during the 20th century the Swedish C.elaphus population recovered. The recovery was partially uncontrolled, and included introductions of C.elaphus of continental origin. In northern central Sweden (Jamtland) the current C.elaphus population may stem from natural colonization from Norway and/or from specimens of Swedish origin that have escaped from enclosures. To evaluate the status of the current, partially separated populations, we investigated variation at microsatellite markers in 157 C.elaphus specimens from ten locations in Sweden and Norway. Analyses suggest that the highest-likelihood phylogenetic structure among the individuals sampled is described four distinct genetic clusters: (1) animals from the province of Vastergotland in south-western Sweden; (2) deer from the southernmost province of Skane; (3) deer from the provinces Jamtland, Blekinge, and Vastmanland; and (4) Norwegian deer. Cervus elaphus from a captive herd at the Skane Zoo cluster with deer from Skane or deer from Vastergotland, depending on the method of analysis. A number of populations in Sweden may genetically match the nominate form of red deer (C.e.elaphus). The recently established C.elaphus population in Jamtland seems to stem mainly from escapees from enclosures, with a mixed ancestry from the wild remnant population in Skane and continental deer, whereas the influx from Norway is minor, if any. Our results show the need for a detailed assessment of genetic differentiation, and emphasize the value of local management plans when planning and managing introductions.
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| 4. |
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| 6. |
- Jarnemo, Anders
(författare)
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Male red deer (Cervus elaphus) dispersal during the breeding season
- 2011
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Ingår i: Journal of Ethology. - : Springer Science and Business Media LLC. - 0289-0771 .- 1439-5444. ; 29, s. 329-336
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Tidskriftsartikel (refereegranskat)abstract
- Breeding dispersal can be of significant ecological and evolutionary importance. Yet, it is seldom considered in mammals. I present data on male red deer (Cervus elaphus) movements between sub-populations in southern Sweden during the rut. I investigated whether these movements could be breeding dispersal driven by mate competition. During the ruts of 1998-2009, I recorded 91 movements of males. The longest movement distance was 18.5 km. Dispersal was not restricted to yearlings or sub-adults, but also observed among adult stags. Of 91 movements observed, 7 were made by yearlings, 46 by sub-adults and 38 by adults. There was a significant move among yearlings and sub-adults towards areas with a higher ratio of females/adult males and towards areas with more females. The movements between rutting areas thereby seemed driven by sexual competition.
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| 7. |
- Jarnemo, Anders, et al.
(författare)
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Managing landscapes for multiple objectives : Alternative forage can reduce the conflict between deer and forestry
- 2014
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Ingår i: Ecosphere. - Washington : Ecological Society of America. - 2150-8925 .- 2150-8925. ; 5:8
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Tidskriftsartikel (refereegranskat)abstract
- Deer (Cervidae) cause considerable damage to forest plantations, crops, and protected habitats. The most common response to this damage is to implement strategies to lower population densities. However, lowering deer density may not always be desirable from hunting, recreational, or conservation perspectives. Therefore, knowledge is needed about additional factors beyond deer density that affect damage levels, and management actions that consider competing management goals. We studied the relationships between levels of bark-stripping by red deer (Cervus elaphus) on Norway spruce (Picea abies) and (1) relative deer density indices (pellet group count and deer harvest data), (2) availability of alternative natural forage (cover of forage species) and (3) proportion forest in the landscape, both at a forest stand scale and at a landscape scale. Extensive variation in damage level was evident between the six study areas. On a stand scale, the proportion of spruce damaged was positively related to pellet group density, indicating the importance of local deer usage of stands. In addition, available alternative forage in the field layer within spruce stands and proportion forest surrounding stands was negatively related to damage level. On the landscape scale, damage level was negatively related to availability of forage in the field and shrub layers and proportion forest, but was not related to any of the relative deer density indices. Increasing alternative forage may thus decrease damage and thereby reduce conflicts. Additionally, the proportion of forest in the landscape affects damage levels and should thus be considered in landscape planning and when forecasting damage risk. The relationship between local deer usage of stands and damage level suggests that future studies should try to separate the effects of local deer usage and deer density. © 2014 Jarnemo et al.
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| 8. |
- Jarnemo, Anders, et al.
(författare)
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Movement pattern of red deer during drive hunts in Sweden
- 2014
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Ingår i: European Journal of Wildlife Research. - : Springer Science and Business Media LLC. - 1612-4642 .- 1439-0574. ; 60, s. 77-84
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Tidskriftsartikel (refereegranskat)abstract
- We investigated the movement pattern of GPS-collared red deer (Cervus elaphus) during drive hunts with loose dogs. In 46 flights of hinds (N = 9), the median flight distance was 2.5 km (range 0.4-15.0). In 28 % of the flights, the hind left its home range. Average time before returning to home range was 23 h (range 2-88). Hinds in a less forested site left their home ranges more often, fled longer distances, moved at higher speed, and returned later than hinds in a homogenous forest. Speed of movement increased with number of hunts in the less forested site. In eight flights of stags (N = 4), the median flight distance was 5.1 km (range 2.2-13.3). The start of hunting season seemed to trigger stags' departure to their wintering areas. Knowledge of reactions to disturbance can aid game management to choose hunting methods and dogs that cause less disturbance but may also be used to deter deer from areas where they damage crops and forest plantations.
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| 9. |
- Jarnemo, Anders
(författare)
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Skön, skygg och kontroversiell
- 2010
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Ingår i: Skånska dagbladet. - 1103-9973. ; x, s. C4-
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Skånska Dagbladet, bilaga Skånska Jakt- och Fiskemässan, nr 22 augusti 2010. C4.
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| 10. |
- Jarnemo, Anders
(författare)
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Skön, skygg och kontroversiell
- 2010
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Ingår i: Svensk jakt nyheter. ; , s. 19-
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Tidskriftsartikel (populärvet., debatt m.m.)
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