Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys

The eurasian lynx (Lynx lynx) has a wide distribution and occurs in the palearctic region. In Europe, the lynx has been persecuted and exterminated from several of its natural distribution areas and has also been subject to persecution in Sweden, where a high hunting pressure led to a reduced popula...

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Main Author: Dahlberg, Julia
Format: Bachelor Thesis
Language:Swedish
Published: Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013) 2024
Subjects:
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-99295
id ftkarlstadsuniv:oai:DiVA.org:kau-99295
record_format openpolar
spelling ftkarlstadsuniv:oai:DiVA.org:kau-99295 2024-05-19T07:50:06+00:00 Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys The effets of hunting and catastrophes on the lynx (Lynx lynx) in Sweden: A population viability analysis Dahlberg, Julia 2024 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-99295 swe swe Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013) http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-99295 info:eu-repo/semantics/openAccess Lynx eurasian lynx lynx population hunting catastrophes population viability analysis Sweden Lodjur eurasiska lodjuret lodjurspopulation jakt katastrofer sårbarhetsanalys Sverige Biological Sciences Biologiska vetenskaper Student thesis info:eu-repo/semantics/bachelorThesis text 2024 ftkarlstadsuniv 2024-04-30T23:34:43Z The eurasian lynx (Lynx lynx) has a wide distribution and occurs in the palearctic region. In Europe, the lynx has been persecuted and exterminated from several of its natural distribution areas and has also been subject to persecution in Sweden, where a high hunting pressure led to a reduced population that almost went extinct. Today, the Swedish lynx population has recovered but is kept down by licensed hunting, which is strictly controlled due to the lynx's protection status. However, Sweden's government has backed a proposal for reduced protection that could potentially lead to higher hunting quotas and thus threaten the lynx's future, because of predators’ vulnerability to high hunting pressures and smaller populations’ vulnerability to stochastic events such as catastrophes. The purpose of this study was to investigate the development of the Swedish lynx population and how high the risk of extinction is now, with increased hunting quotas and if catastrophes would occur both with current hunting quotas and increased hunting quotas. Based on the purpose, the questions that were answered were the following: 1) What does the population development and extinction risk look like for the Swedish lynx population in the next 100 years with current hunting quotas? 2) How do higher hunting quotas affect the Swedish lynx population development and extinction risk in the next 100 years? 3) How would catastrophes with current hunting quotas and increased hunting quotas affect the Swedish lynx population development and extinction risk in the next 100 years? The questions were answered through a population viability analysis performed in Vortex 10 where four scenarios were created. In scenario 1, the null scenario, the Swedish lynx population development and extinction risk over 100 years were investigated in relation to current hunting quotas. In scenario 2, the Swedish lynx population development and extinction risk over 100 years were investigated in relation to current hunting quotas and catastrophes. In scenario ... Bachelor Thesis Lynx Lynx lynx lynx Karlstad University: Publications (DIVA)
institution Open Polar
collection Karlstad University: Publications (DIVA)
op_collection_id ftkarlstadsuniv
language Swedish
topic Lynx
eurasian lynx
lynx population
hunting
catastrophes
population viability analysis
Sweden
Lodjur
eurasiska lodjuret
lodjurspopulation
jakt
katastrofer
sårbarhetsanalys
Sverige
Biological Sciences
Biologiska vetenskaper
spellingShingle Lynx
eurasian lynx
lynx population
hunting
catastrophes
population viability analysis
Sweden
Lodjur
eurasiska lodjuret
lodjurspopulation
jakt
katastrofer
sårbarhetsanalys
Sverige
Biological Sciences
Biologiska vetenskaper
Dahlberg, Julia
Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
topic_facet Lynx
eurasian lynx
lynx population
hunting
catastrophes
population viability analysis
Sweden
Lodjur
eurasiska lodjuret
lodjurspopulation
jakt
katastrofer
sårbarhetsanalys
Sverige
Biological Sciences
Biologiska vetenskaper
description The eurasian lynx (Lynx lynx) has a wide distribution and occurs in the palearctic region. In Europe, the lynx has been persecuted and exterminated from several of its natural distribution areas and has also been subject to persecution in Sweden, where a high hunting pressure led to a reduced population that almost went extinct. Today, the Swedish lynx population has recovered but is kept down by licensed hunting, which is strictly controlled due to the lynx's protection status. However, Sweden's government has backed a proposal for reduced protection that could potentially lead to higher hunting quotas and thus threaten the lynx's future, because of predators’ vulnerability to high hunting pressures and smaller populations’ vulnerability to stochastic events such as catastrophes. The purpose of this study was to investigate the development of the Swedish lynx population and how high the risk of extinction is now, with increased hunting quotas and if catastrophes would occur both with current hunting quotas and increased hunting quotas. Based on the purpose, the questions that were answered were the following: 1) What does the population development and extinction risk look like for the Swedish lynx population in the next 100 years with current hunting quotas? 2) How do higher hunting quotas affect the Swedish lynx population development and extinction risk in the next 100 years? 3) How would catastrophes with current hunting quotas and increased hunting quotas affect the Swedish lynx population development and extinction risk in the next 100 years? The questions were answered through a population viability analysis performed in Vortex 10 where four scenarios were created. In scenario 1, the null scenario, the Swedish lynx population development and extinction risk over 100 years were investigated in relation to current hunting quotas. In scenario 2, the Swedish lynx population development and extinction risk over 100 years were investigated in relation to current hunting quotas and catastrophes. In scenario ...
format Bachelor Thesis
author Dahlberg, Julia
author_facet Dahlberg, Julia
author_sort Dahlberg, Julia
title Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
title_short Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
title_full Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
title_fullStr Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
title_full_unstemmed Påverkan av jakt och katastrofer på lodjursstammen (Lynx lynx) i Sverige: En sårbarhetsanalys
title_sort pã¥verkan av jakt och katastrofer p㥠lodjursstammen (lynx lynx) i sverige: en sã¥rbarhetsanalys
publisher Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)
publishDate 2024
url http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-99295
genre Lynx
Lynx lynx lynx
genre_facet Lynx
Lynx lynx lynx
op_relation http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-99295
op_rights info:eu-repo/semantics/openAccess
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