Bird communities at two marshes in Øvre Forra, today and 40 years ago
In the protected area Øvre Forra in Central Norway, birds were surveyed at two marshes in two succeeding years at the beginning of the 1970s. By following the same survey procedure 40 years later in these unchanged marsh habitats, I sought changes in the breeding bird community. While the total numb...
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ftboapojs:oai:boap.uib.no:article/890 2023-05-15T13:02:24+02:00 Bird communities at two marshes in Øvre Forra, today and 40 years ago Thingstad, Per Gustav 2015-12-04 application/pdf https://boap.uib.no/index.php/ornis/article/view/890 https://doi.org/10.15845/on.v38i0.890 eng eng Norsk Ornitologisk Forening https://boap.uib.no/index.php/ornis/article/view/890/838 https://boap.uib.no/index.php/ornis/article/view/890 doi:10.15845/on.v38i0.890 Ornis Norvegica; Vol 38 (2015); 18-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftboapojs https://doi.org/10.15845/on.v38i0.890 2021-09-23T20:15:19Z In the protected area Øvre Forra in Central Norway, birds were surveyed at two marshes in two succeeding years at the beginning of the 1970s. By following the same survey procedure 40 years later in these unchanged marsh habitats, I sought changes in the breeding bird community. While the total number of waders seems to have been quite stable, the abundance of some of the involved species might have changed during this period of time. Due to low numbers, and annual variations, the implications for some of the involved species have to be taken cautiously. The most abundant species in Øvre Forra is now the Common Redshank Tringa totanus. This species has outnumbered the earlier most abundant species in this bird community, the Meadow Pipit Anthus pratensis. The numbers of the Meadow Pipit, Northern Lapwing Vanellus vanellus, European Golden Plover Pluvialis apricaria and Common Sandpiper Actitis hypoleucos all tend to be lower than for 40 years ago. The Common Gull Larus canus and two Tringa species, the Common Redshank T. totanus and Common Greenshank T. nebularia, seem to have increased in numbers, while the situation for the Common Snipe Gallinago gallinago and the Whimbrel Numenius phaeopus appears to be stable. The Ruff Calidris pugnax used to be a characteristic species on the Øvre Forra’s bogs in the 1970s, but has since vanished. Altogether, the study shows an apparently quite stable avifauna over the time span of 40 years in this environmentally stable reserve. Article in Journal/Newspaper Actitis hypoleucos Common Sandpiper European Golden Plover Larus canus Numenius phaeopus Pluvialis apricaria Vanellus vanellus Whimbrel Ruff Bergen Open Access Publishing (University of Bergen Library) Forra ENVELOPE(17.033,17.033,68.465,68.465) Norway Øvre ENVELOPE(14.991,14.991,67.750,67.750) Ornis Norvegica 38 0 18 |
institution |
Open Polar |
collection |
Bergen Open Access Publishing (University of Bergen Library) |
op_collection_id |
ftboapojs |
language |
English |
description |
In the protected area Øvre Forra in Central Norway, birds were surveyed at two marshes in two succeeding years at the beginning of the 1970s. By following the same survey procedure 40 years later in these unchanged marsh habitats, I sought changes in the breeding bird community. While the total number of waders seems to have been quite stable, the abundance of some of the involved species might have changed during this period of time. Due to low numbers, and annual variations, the implications for some of the involved species have to be taken cautiously. The most abundant species in Øvre Forra is now the Common Redshank Tringa totanus. This species has outnumbered the earlier most abundant species in this bird community, the Meadow Pipit Anthus pratensis. The numbers of the Meadow Pipit, Northern Lapwing Vanellus vanellus, European Golden Plover Pluvialis apricaria and Common Sandpiper Actitis hypoleucos all tend to be lower than for 40 years ago. The Common Gull Larus canus and two Tringa species, the Common Redshank T. totanus and Common Greenshank T. nebularia, seem to have increased in numbers, while the situation for the Common Snipe Gallinago gallinago and the Whimbrel Numenius phaeopus appears to be stable. The Ruff Calidris pugnax used to be a characteristic species on the Øvre Forra’s bogs in the 1970s, but has since vanished. Altogether, the study shows an apparently quite stable avifauna over the time span of 40 years in this environmentally stable reserve. |
format |
Article in Journal/Newspaper |
author |
Thingstad, Per Gustav |
spellingShingle |
Thingstad, Per Gustav Bird communities at two marshes in Øvre Forra, today and 40 years ago |
author_facet |
Thingstad, Per Gustav |
author_sort |
Thingstad, Per Gustav |
title |
Bird communities at two marshes in Øvre Forra, today and 40 years ago |
title_short |
Bird communities at two marshes in Øvre Forra, today and 40 years ago |
title_full |
Bird communities at two marshes in Øvre Forra, today and 40 years ago |
title_fullStr |
Bird communities at two marshes in Øvre Forra, today and 40 years ago |
title_full_unstemmed |
Bird communities at two marshes in Øvre Forra, today and 40 years ago |
title_sort |
bird communities at two marshes in øvre forra, today and 40 years ago |
publisher |
Norsk Ornitologisk Forening |
publishDate |
2015 |
url |
https://boap.uib.no/index.php/ornis/article/view/890 https://doi.org/10.15845/on.v38i0.890 |
long_lat |
ENVELOPE(17.033,17.033,68.465,68.465) ENVELOPE(14.991,14.991,67.750,67.750) |
geographic |
Forra Norway Øvre |
geographic_facet |
Forra Norway Øvre |
genre |
Actitis hypoleucos Common Sandpiper European Golden Plover Larus canus Numenius phaeopus Pluvialis apricaria Vanellus vanellus Whimbrel Ruff |
genre_facet |
Actitis hypoleucos Common Sandpiper European Golden Plover Larus canus Numenius phaeopus Pluvialis apricaria Vanellus vanellus Whimbrel Ruff |
op_source |
Ornis Norvegica; Vol 38 (2015); 18-24 |
op_relation |
https://boap.uib.no/index.php/ornis/article/view/890/838 https://boap.uib.no/index.php/ornis/article/view/890 doi:10.15845/on.v38i0.890 |
op_doi |
https://doi.org/10.15845/on.v38i0.890 |
container_title |
Ornis Norvegica |
container_volume |
38 |
container_issue |
0 |
container_start_page |
18 |
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1766308486153502720 |