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An experimental evaluation of the arctic fox (Alopex lagopus) as a seed disperser

Graae, Bente Jessen; Pagh, Sussi and Bruun, Hans Henrik LU (2004) In Arctic, Antarctic and Alpine Research 36(4). p.468-473
Abstract
Arctic foxes are evaluated as seed dispersal vectors for Greenlandic plant species through a feeding experiment with subsequent scat analysis and germination test. Seeds of 22 common species with different morphology were tested. Passage time ranged between 4 and 48 hours. No significant differences was detected in passage time for seeds with different morphology. Cerastium alpinum and Stellaria longipes had higher germination after passage through the fox’ digestive tract as compared to controls. Sibbaldia procumbens, Oxyria digyna and Silene acaulis were favoured by passage when shorter than 10 hours. Salix glauca ssp. callicarpaea, Veronica alpina, Gnaphalium norvegicum, Papaver radicatum, Ranunculus hyperboreus, Chamaenerion... (More)
Arctic foxes are evaluated as seed dispersal vectors for Greenlandic plant species through a feeding experiment with subsequent scat analysis and germination test. Seeds of 22 common species with different morphology were tested. Passage time ranged between 4 and 48 hours. No significant differences was detected in passage time for seeds with different morphology. Cerastium alpinum and Stellaria longipes had higher germination after passage through the fox’ digestive tract as compared to controls. Sibbaldia procumbens, Oxyria digyna and Silene acaulis were favoured by passage when shorter than 10 hours. Salix glauca ssp. callicarpaea, Veronica alpina, Gnaphalium norvegicum, Papaver radicatum, Ranunculus hyperboreus, Chamaenerion latifolium, Luzula parviflora and bulbils of Polygonum viviparum and Saxifraga cernua were inhibited by passage, whereas the remaining species had too low germination percentage to allow for evaluation. Species with adaptations to wind dispersal seemed particularly vulnerable to gut pasage. Arctic foxes are able to provide long-distances dispersal of seeds lacking morphological adaptations to dispersal, but for most species seeds need to be defecated within 12 hours to remain viable. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
seed dispersal, endozoochory
in
Arctic, Antarctic and Alpine Research
volume
36
issue
4
pages
468 - 473
publisher
Institute of Arctic and Alpine Research
external identifiers
  • scopus:13944259719
ISSN
1938-4246
DOI
10.1657/1523-0430(2004)036[0468:AEEOTA]2.0.CO;2
language
English
LU publication?
yes
id
6263acee-b59b-401b-a75c-64159f4be732 (old id 137784)
date added to LUP
2007-07-02 10:29:33
date last changed
2017-11-05 03:35:56
@article{6263acee-b59b-401b-a75c-64159f4be732,
  abstract     = {Arctic foxes are evaluated as seed dispersal vectors for Greenlandic plant species through a feeding experiment with subsequent scat analysis and germination test. Seeds of 22 common species with different morphology were tested. Passage time ranged between 4 and 48 hours. No significant differences was detected in passage time for seeds with different morphology. Cerastium alpinum and Stellaria longipes had higher germination after passage through the fox’ digestive tract as compared to controls. Sibbaldia procumbens, Oxyria digyna and Silene acaulis were favoured by passage when shorter than 10 hours. Salix glauca ssp. callicarpaea, Veronica alpina, Gnaphalium norvegicum, Papaver radicatum, Ranunculus hyperboreus, Chamaenerion latifolium, Luzula parviflora and bulbils of Polygonum viviparum and Saxifraga cernua were inhibited by passage, whereas the remaining species had too low germination percentage to allow for evaluation. Species with adaptations to wind dispersal seemed particularly vulnerable to gut pasage. Arctic foxes are able to provide long-distances dispersal of seeds lacking morphological adaptations to dispersal, but for most species seeds need to be defecated within 12 hours to remain viable.},
  author       = {Graae, Bente Jessen and Pagh, Sussi and Bruun, Hans Henrik},
  issn         = {1938-4246},
  keyword      = {seed dispersal,endozoochory},
  language     = {eng},
  number       = {4},
  pages        = {468--473},
  publisher    = {Institute of Arctic and Alpine Research},
  series       = {Arctic, Antarctic and Alpine Research},
  title        = {An experimental evaluation of the arctic fox (Alopex lagopus) as a seed disperser},
  url          = {http://dx.doi.org/10.1657/1523-0430(2004)036[0468:AEEOTA]2.0.CO;2},
  volume       = {36},
  year         = {2004},
}