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Population trends of birds in alpine habitats at Ammarnäs in southern Swedish Lapland 1972-2011

Svensson, Sören LU and Andersson, Thomas (2013) In Ornis Svecica 23(2). p.81-107
Abstract
All birds were counted along six permanent routes (total

length 90 km) located in the low alpine zone (800–1000

m.a.s.l.) at Ammarnäs, southern Lapland, during fortyyears,

1972–2011. Eighty-three species were recorded;

average 41 species and 1677 birds per year. Number of

species as well as population size increased for waterfowl,

waders and other non-passerines but not for passerines.

Thirteen of the thirty-eight most regular species had

significant population trends, twelve of them positive.

The route counts correlated well with the number of pairs

in two adjacent territory mapping plots. The trends also

correlated positively with those... (More)
All birds were counted along six permanent routes (total

length 90 km) located in the low alpine zone (800–1000

m.a.s.l.) at Ammarnäs, southern Lapland, during fortyyears,

1972–2011. Eighty-three species were recorded;

average 41 species and 1677 birds per year. Number of

species as well as population size increased for waterfowl,

waders and other non-passerines but not for passerines.

Thirteen of the thirty-eight most regular species had

significant population trends, twelve of them positive.

The route counts correlated well with the number of pairs

in two adjacent territory mapping plots. The trends also

correlated positively with those found in all mountain

routes of the Swedish Bird Survey. Although not quite

significant this similarity indicates that common largescale

factors are involved in governing the local population

changes. Several of the species that have their main

distribution at lower levels are expanding their ranges

into the alpine zone. Despite the predominance of positive

trends some species have more or less severe problems,

requiring deeper studies or conservation measures:

Melanitta fusca, Aythya marila, Philomachus pugnax,

Eremophila alpestris and Plectrophenax nivalis. (Less)
Please use this url to cite or link to this publication:
author
organization
alternative title
Beståndsförändringar hos fåglar på kalfjäll runt Ammarnäs i södra svenska Lappland 1972-2011
publishing date
type
Contribution to journal
publication status
published
subject
in
Ornis Svecica
volume
23
issue
2
pages
81 - 107
publisher
Sveriges Ornitologiska Förening
external identifiers
  • scopus:84901914568
ISSN
1102-6812
language
English
LU publication?
yes
id
0b89353c-cd44-4dc9-b0a1-869c3efc928b (old id 5275616)
alternative location
http://www.sofnet.org//1020.0.1.0/536/download_26238.php
date added to LUP
2015-04-14 14:25:13
date last changed
2019-07-02 02:12:47
@article{0b89353c-cd44-4dc9-b0a1-869c3efc928b,
  abstract     = {All birds were counted along six permanent routes (total<br/><br>
length 90 km) located in the low alpine zone (800–1000<br/><br>
m.a.s.l.) at Ammarnäs, southern Lapland, during fortyyears,<br/><br>
1972–2011. Eighty-three species were recorded;<br/><br>
average 41 species and 1677 birds per year. Number of<br/><br>
species as well as population size increased for waterfowl,<br/><br>
waders and other non-passerines but not for passerines.<br/><br>
Thirteen of the thirty-eight most regular species had<br/><br>
significant population trends, twelve of them positive.<br/><br>
The route counts correlated well with the number of pairs<br/><br>
in two adjacent territory mapping plots. The trends also<br/><br>
correlated positively with those found in all mountain<br/><br>
routes of the Swedish Bird Survey. Although not quite<br/><br>
significant this similarity indicates that common largescale<br/><br>
factors are involved in governing the local population<br/><br>
changes. Several of the species that have their main<br/><br>
distribution at lower levels are expanding their ranges<br/><br>
into the alpine zone. Despite the predominance of positive<br/><br>
trends some species have more or less severe problems,<br/><br>
requiring deeper studies or conservation measures:<br/><br>
Melanitta fusca, Aythya marila, Philomachus pugnax,<br/><br>
Eremophila alpestris and Plectrophenax nivalis.},
  author       = {Svensson, Sören and Andersson, Thomas},
  issn         = {1102-6812},
  language     = {eng},
  number       = {2},
  pages        = {81--107},
  publisher    = {Sveriges Ornitologiska Förening},
  series       = {Ornis Svecica},
  title        = {Population trends of birds in alpine habitats at Ammarnäs in southern Swedish Lapland 1972-2011},
  volume       = {23},
  year         = {2013},
}