Limiting factors in capercaillie (Tetrao urogallus) conservation
With current extinction rates comparable with the rates of previous mass extinctions and humanities necessity of biodiversity, conservation of habitat and species should be regarded as paramount whenever planning land use. In this paper we have focused on the Western capercaillie (Tetrao urogallus)...
| Autores principales: | , |
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| Formato: | First cycle, G2E |
| Lenguaje: | sueco Inglés |
| Publicado: |
2021
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/16675/ |
| _version_ | 1855572779348262912 |
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| author | Moreira Boman, Christer Pettersson, Andreas |
| author_browse | Moreira Boman, Christer Pettersson, Andreas |
| author_facet | Moreira Boman, Christer Pettersson, Andreas |
| author_sort | Moreira Boman, Christer |
| collection | Epsilon Archive for Student Projects |
| description | With current extinction rates comparable with the rates of previous mass extinctions and humanities necessity of biodiversity, conservation of habitat and species should be regarded as paramount whenever planning land use.
In this paper we have focused on the Western capercaillie (Tetrao urogallus) an umbrella species in Eurasian boreal and temperate forests. Capercaillie numbers have been reduced in mainland Europe and British Isles during the last century mainly due to increased predator populations, habitat loss, fragmentation and degradation as a result of human development of agriculture and land use change. Human recreation in sites with capercaillie show increased levels of stress in the capercaillies which might contribute to their decline.
Programs in Scotland, Germany, Spain and Poland have the aim to aid or reintroduce populations in the capercaillies historic range. Practices with the aims to reintroduce or re-stock populations often consist of releasing individuals reared in facilities or breeding centers into suitable habitat. High mortality shortly after releasing due to high predation as a result of mal adapted physical and behavior traits leads to failure in most programs.
Predator management and new techniques that improve the physical and behavioral quality in reared capercaillies such as choice of rearing method, large flight pens, elevated roost and anti-predatory training have shown increased fitness and increased survival.
The use of PVA tools is effective when comparing different procedures or scenarios and should be used as a decision basis. |
| format | First cycle, G2E |
| id | RepoSLU16675 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2021 |
| publishDateSort | 2021 |
| record_format | eprints |
| spelling | RepoSLU166752021-05-20T01:01:17Z https://stud.epsilon.slu.se/16675/ Limiting factors in capercaillie (Tetrao urogallus) conservation Moreira Boman, Christer Pettersson, Andreas Forestry - General aspects With current extinction rates comparable with the rates of previous mass extinctions and humanities necessity of biodiversity, conservation of habitat and species should be regarded as paramount whenever planning land use. In this paper we have focused on the Western capercaillie (Tetrao urogallus) an umbrella species in Eurasian boreal and temperate forests. Capercaillie numbers have been reduced in mainland Europe and British Isles during the last century mainly due to increased predator populations, habitat loss, fragmentation and degradation as a result of human development of agriculture and land use change. Human recreation in sites with capercaillie show increased levels of stress in the capercaillies which might contribute to their decline. Programs in Scotland, Germany, Spain and Poland have the aim to aid or reintroduce populations in the capercaillies historic range. Practices with the aims to reintroduce or re-stock populations often consist of releasing individuals reared in facilities or breeding centers into suitable habitat. High mortality shortly after releasing due to high predation as a result of mal adapted physical and behavior traits leads to failure in most programs. Predator management and new techniques that improve the physical and behavioral quality in reared capercaillies such as choice of rearing method, large flight pens, elevated roost and anti-predatory training have shown increased fitness and increased survival. The use of PVA tools is effective when comparing different procedures or scenarios and should be used as a decision basis. Nutidens utrotningstakt som kan jämföras med takterna under de tidigare massutdöendena och mänsklighetens behov av ekosystemtjänster som upprätthålls tack vare biodiversitet bör bevarande av habitat och arter ha en tydlig roll vid planering av markanvändning. I detta arbete har vi fokuserat på Tjäder (Tetrao urogallus) som anses vara en paraplyart i eurasiska boreala och tempererade skogar. På den europeiska kontinenten har tjäderpopulationer minskat det senaste århundradet främst på grund av ökat predationstryck samt degradering, fragmentering och förlust av habitat. Även mänsklig störning knuten till rekreation ger ökade stressnivåer hos tjädrar vilket kan vara en bidragande faktor till minskande populationer. I Skottland, Tyskland, Spanien och Polen finns program med mål att återintroducera eller bevara tjäderpopulationer. Liknande program präglas av låga framgångssiffror. Hög predation bland tjädrar kort efter utsläpp till viss del som effekt av underutvecklade fysiska- och psykiska egenskaper. Predatorkontroll samt nya metoder att föda upp tjädrar bidrar till ökad framgång i försök. PVA är ett verktyg som effektivt kan användas för att bedöma vilket scenario i människans försök att bevara tjäder som är mest slagkraftigt. 2021-05-12 First cycle, G2E NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/16675/3/moreira_boman_c_pettersson_a_210519.pdf Moreira Boman, Christer and Pettersson, Andreas, 2019. Limiting factors in capercaillie (Tetrao urogallus) conservation. First cycle, G2E. Umeå: (S) > Dept. of Wildlife, Fish and Environmental Studies <https://stud.epsilon.slu.se/view/divisions/OID-251.html> urn:nbn:se:slu:epsilon-s-16675 eng |
| spellingShingle | Forestry - General aspects Moreira Boman, Christer Pettersson, Andreas Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title | Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title_full | Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title_fullStr | Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title_full_unstemmed | Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title_short | Limiting factors in capercaillie (Tetrao urogallus) conservation |
| title_sort | limiting factors in capercaillie (tetrao urogallus) conservation |
| topic | Forestry - General aspects |
| url | https://stud.epsilon.slu.se/16675/ https://stud.epsilon.slu.se/16675/ |