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Long-term land-use changes and extinction of specialised butterflies

Nilsson, Sven LU ; Franzén, Markus LU and Jönsson, Emma (2008) In Insect Conservation and Diversity 1(4). p.197-207
Abstract
1. Land-use change in 450 ha in southern Sweden between 1814 and 2004 was recorded. Butterflies and burnet moths were surveyed in 1904–1913 and 2001–2005.

2. We explore if local extinctions were related to land-use changes and species attributes.

3. Land use changed drastically over the 190-year period, and the largest relative change occurred for hay meadows with late harvest, which decreased from 28% to 0%. The area changed from grasslands and grazed forests to being dominated by timber forests. Previous open grazed mixed woodlands changed to spruce plantations with clear-cuts.

4. Of the 48 resident butterfly and burnet moths found a century ago, 44% have become extinct. The extinct Aporia cratægi, Colias... (More)
1. Land-use change in 450 ha in southern Sweden between 1814 and 2004 was recorded. Butterflies and burnet moths were surveyed in 1904–1913 and 2001–2005.

2. We explore if local extinctions were related to land-use changes and species attributes.

3. Land use changed drastically over the 190-year period, and the largest relative change occurred for hay meadows with late harvest, which decreased from 28% to 0%. The area changed from grasslands and grazed forests to being dominated by timber forests. Previous open grazed mixed woodlands changed to spruce plantations with clear-cuts.

4. Of the 48 resident butterfly and burnet moths found a century ago, 44% have become extinct. The extinct Aporia cratægi, Colias palaeno, and Leptidea sinapis were abundant 100 years ago and had their highest densities in flower-rich glades in forest, a habitat which no longer exists.

5. The butterfly extinctions could be predicted from species-specific attributes as a short flight length period (P < 0.02), narrow habitat breadth (P < 0.02), small distribution area in Europe (P = 0.033) and possibly larvae food plant nitrogen class (P < 0.06). In a multiple logistic regression, the flight length period was the only significant variable because the independent variables were intercorrelated.

6. We conclude that the most important factor explaining the high extinction rate is that flower-rich habitats have disappeared from both woodlands as well as from open farmlands. The most sensitive species are specialised species with a short summer flight which have gone extinct. Only the most unspecialised species still persist in the current landscape. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Distribution, extinction, forest glade, forestry, hay-meadow, land-use, landscape, nitrogen, pasture, Zygaenidae
in
Insect Conservation and Diversity
volume
1
issue
4
pages
197 - 207
publisher
Wiley-Blackwell
external identifiers
  • wos:000262759300002
ISSN
1752-4598
DOI
10.1111/j.1752-4598.2008.00027.x
language
English
LU publication?
yes
id
a373c5f1-5b0a-4a94-9412-0357e3b68caa (old id 1278886)
date added to LUP
2009-02-02 13:14:45
date last changed
2016-04-15 20:23:06
@article{a373c5f1-5b0a-4a94-9412-0357e3b68caa,
  abstract     = {1. Land-use change in 450 ha in southern Sweden between 1814 and 2004 was recorded. Butterflies and burnet moths were surveyed in 1904–1913 and 2001–2005.<br/><br>
2. We explore if local extinctions were related to land-use changes and species attributes.<br/><br>
3. Land use changed drastically over the 190-year period, and the largest relative change occurred for hay meadows with late harvest, which decreased from 28% to 0%. The area changed from grasslands and grazed forests to being dominated by timber forests. Previous open grazed mixed woodlands changed to spruce plantations with clear-cuts.<br/><br>
4. Of the 48 resident butterfly and burnet moths found a century ago, 44% have become extinct. The extinct Aporia cratægi, Colias palaeno, and Leptidea sinapis were abundant 100 years ago and had their highest densities in flower-rich glades in forest, a habitat which no longer exists.<br/><br>
5. The butterfly extinctions could be predicted from species-specific attributes as a short flight length period (P &lt; 0.02), narrow habitat breadth (P &lt; 0.02), small distribution area in Europe (P = 0.033) and possibly larvae food plant nitrogen class (P &lt; 0.06). In a multiple logistic regression, the flight length period was the only significant variable because the independent variables were intercorrelated.<br/><br>
6. We conclude that the most important factor explaining the high extinction rate is that flower-rich habitats have disappeared from both woodlands as well as from open farmlands. The most sensitive species are specialised species with a short summer flight which have gone extinct. Only the most unspecialised species still persist in the current landscape.},
  author       = {Nilsson, Sven and Franzén, Markus and Jönsson, Emma},
  issn         = {1752-4598},
  keyword      = {Distribution,extinction,forest glade,forestry,hay-meadow,land-use,landscape,nitrogen,pasture,Zygaenidae},
  language     = {eng},
  number       = {4},
  pages        = {197--207},
  publisher    = {Wiley-Blackwell},
  series       = {Insect Conservation and Diversity},
  title        = {Long-term land-use changes and extinction of specialised butterflies},
  url          = {http://dx.doi.org/10.1111/j.1752-4598.2008.00027.x},
  volume       = {1},
  year         = {2008},
}