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Shaping the Swedish...
Shaping the Swedish landscape: a future for the Gotland russ
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- Jansson, Anna (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för anatomi, fysiologi och biokemi,Department of Anatomy, Physiology and Biochemistry (AFB)
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- Edenius, Lars (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies
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- Dahlborn, Kristina (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för anatomi, fysiologi och biokemi,Department of Anatomy, Physiology and Biochemistry (AFB)
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visa fler...
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- Ringmark, Sara (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjurens utfodring och vård (HUV),Department of Animal Nutrition and Management
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- Steen, Margareta (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,SCAW Nationellt centrum för djurvälfärd
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- Öckinger, Erik (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
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- Thulin, Carl-Gustaf (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies
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- Skarin, Anna (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjurens utfodring och vård (HUV),Department of Animal Nutrition and Management
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visa färre...
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(creator_code:org_t)
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- ISBN 9789086862849
- 2016
- 2016
- Engelska.
- Relaterad länk:
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https://res.slu.se/i...
Abstract
Ämnesord
Stäng
- Tree encroachment and abandonment of pastures is an important cause of biodiversity loss in Sweden. In thisstudy, we evaluate the impact of all-year-around grazing by an ancient horse breed, the Gotland russ (GR),on tree encroachment. Twelve GR stallions were kept in 3 enclosures (lat: 59, long: 17, 4 GR/enclosure, 7ha forest and 3 ha open fields/enclosure) from May 2014 (age 1 yrs) until February 2016. Prior to the study,3 exclosures (EX, 5×42.5 m) where GR grazing was excluded were centered with the long side at the borderbetween forest and field. The field part of EX were further divided into four 5×5 m sections starting from theforest (1 to 4). Tree type (deciduous, spruce or pine), number and height were registered in the sections and theequivalent, grazed area adjacent to the EX on the 25th of February 2016. Body condition (BC) was assessedweekly using a 9 leveled scoring system. Individuals <4 were withdrawn, fed and reintroduced when BC was>4. Analysis of tree heights and numbers were made by procGLM in SAS. There was no difference in the totalnumber of deciduous trees (21±8 vs 25±8), spruces (2±1 vs 3±1) and pines (0.2±0.2 vs 0.8±0.2) between EXand grazed areas (P>0.05). In the grazed areas, the deciduous trees were shorter compared to the trees in EX(330±57 vs 780±70 mm, P<0.0001). There was no difference in spruce height (EX: 920±110 vs grazed areas:780±130 mm, P=0.31). In the grazed areas, tree height decreased from quarter 1 to 4 (1: 610±60, 2: 230±110, 3:140±90 and 4: 60±100 mm, P<0.0001) whereas in EX, the height increased (1: 740±60, 2: 570±150, 3: 810±90and 4: 960±100 mm, P<0.02). Four individuals (3 from the same enclosure) were withdrawn temporarily inFebruary 2015 due to BC <4. The study show that grazing by GR may inhibit encroachment by deciduoustrees and that BC was maintained in most individuals, despite the semi-feral conditions. The results providea new use for a threatened, ancient breed in landscape management.
Ämnesord
- LANTBRUKSVETENSKAPER -- Husdjursvetenskap -- Husdjursvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Animal and Dairy Sience -- Animal and Dairy Science. (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
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