Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland
Five‐year‐studies of two wood mouse populations ( Apodemus sylvaticus L.) were carried out outside the village Vík. S. Iceland, and in a birch forest close to the lake Mývatn, N. Iceland. The population at Vík was studied on a 1.10 ha grid on a slope covered with Angelica archangelica L., the seeds...
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Online Access: | http://dx.doi.org/10.1111/j.1600-0587.1989.tb00910.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1989.tb00910.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1989.tb00910.x |
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crwiley:10.1111/j.1600-0587.1989.tb00910.x 2023-12-03T10:24:41+01:00 Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland Bengtson, Sven‐Axel Nilsson, Anders Rundgren, Sten 1989 http://dx.doi.org/10.1111/j.1600-0587.1989.tb00910.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1989.tb00910.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1989.tb00910.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 12, issue 4, page 351-368 ISSN 0906-7590 1600-0587 Ecology, Evolution, Behavior and Systematics journal-article 1989 crwiley https://doi.org/10.1111/j.1600-0587.1989.tb00910.x 2023-11-09T13:52:42Z Five‐year‐studies of two wood mouse populations ( Apodemus sylvaticus L.) were carried out outside the village Vík. S. Iceland, and in a birch forest close to the lake Mývatn, N. Iceland. The population at Vík was studied on a 1.10 ha grid on a slope covered with Angelica archangelica L., the seeds of which constituted a major food resource for the mice. Altogether 948 individuals were caught, marked and followed during 1973–1978. No other free‐living small mammals occur in Iceland, and predator pressure is low and considered non‐existent on the Angelica slope. The population density was extremely high; highest autumn density recorded was 150 ind ha −1 . Like other Apodemus populations, the one at Vík showed a typical seasonal pattern in numbers: a winter decrease, relatively stable numbers in late summer, and an autumn peak. Breeding started in late April or early May and ended in late September; no winter breeding was observed. Three or four litters were produced, and the last litter(s) of the season greatly contributed to the autumn increase. The output of young per reproductive female throughout the year was negatively correlated with spring density, and autumn peak density with the number of females in August. Also overwinter success and weight changes appeared to be associated with population density (and weather). Survival rates did not vary much between years and seasons and were consistently rather high. Autumn survival of juveniles was positively correlated with mean minimum temperatures. Juvenile survival was, at least at times, negatively affected by the presence of adult males. Trapping outside the main grid did not indicate any marked dispersal, though some immigration to the grid must have occurred, especially in spring and early summer. Among the factors governing the population density and dynamics of wood mouse at Vík we emphasize the absence of interspecific competition and predation, the rich and dependable food resources (mainly Angelica seeds), the mild (though moist and windy) climate, the ... Article in Journal/Newspaper Iceland Mývatn Wiley Online Library (via Crossref) Mývatn ENVELOPE(-16.985,-16.985,65.600,65.600) Vík ENVELOPE(-18.762,-18.762,66.136,66.136) Ecography 12 4 351 368 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Bengtson, Sven‐Axel Nilsson, Anders Rundgren, Sten Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Five‐year‐studies of two wood mouse populations ( Apodemus sylvaticus L.) were carried out outside the village Vík. S. Iceland, and in a birch forest close to the lake Mývatn, N. Iceland. The population at Vík was studied on a 1.10 ha grid on a slope covered with Angelica archangelica L., the seeds of which constituted a major food resource for the mice. Altogether 948 individuals were caught, marked and followed during 1973–1978. No other free‐living small mammals occur in Iceland, and predator pressure is low and considered non‐existent on the Angelica slope. The population density was extremely high; highest autumn density recorded was 150 ind ha −1 . Like other Apodemus populations, the one at Vík showed a typical seasonal pattern in numbers: a winter decrease, relatively stable numbers in late summer, and an autumn peak. Breeding started in late April or early May and ended in late September; no winter breeding was observed. Three or four litters were produced, and the last litter(s) of the season greatly contributed to the autumn increase. The output of young per reproductive female throughout the year was negatively correlated with spring density, and autumn peak density with the number of females in August. Also overwinter success and weight changes appeared to be associated with population density (and weather). Survival rates did not vary much between years and seasons and were consistently rather high. Autumn survival of juveniles was positively correlated with mean minimum temperatures. Juvenile survival was, at least at times, negatively affected by the presence of adult males. Trapping outside the main grid did not indicate any marked dispersal, though some immigration to the grid must have occurred, especially in spring and early summer. Among the factors governing the population density and dynamics of wood mouse at Vík we emphasize the absence of interspecific competition and predation, the rich and dependable food resources (mainly Angelica seeds), the mild (though moist and windy) climate, the ... |
format |
Article in Journal/Newspaper |
author |
Bengtson, Sven‐Axel Nilsson, Anders Rundgren, Sten |
author_facet |
Bengtson, Sven‐Axel Nilsson, Anders Rundgren, Sten |
author_sort |
Bengtson, Sven‐Axel |
title |
Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
title_short |
Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
title_full |
Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
title_fullStr |
Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
title_full_unstemmed |
Population structure and dynamics of wood mouse Apodemus sylvaticus in Iceland |
title_sort |
population structure and dynamics of wood mouse apodemus sylvaticus in iceland |
publisher |
Wiley |
publishDate |
1989 |
url |
http://dx.doi.org/10.1111/j.1600-0587.1989.tb00910.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1989.tb00910.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1989.tb00910.x |
long_lat |
ENVELOPE(-16.985,-16.985,65.600,65.600) ENVELOPE(-18.762,-18.762,66.136,66.136) |
geographic |
Mývatn Vík |
geographic_facet |
Mývatn Vík |
genre |
Iceland Mývatn |
genre_facet |
Iceland Mývatn |
op_source |
Ecography volume 12, issue 4, page 351-368 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.1989.tb00910.x |
container_title |
Ecography |
container_volume |
12 |
container_issue |
4 |
container_start_page |
351 |
op_container_end_page |
368 |
_version_ |
1784273184481083392 |