(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen
Goose grazing on arctic tundra vegetation has shown both positive and negative effects on subsequent foraging conditions. To understand the potential of a density-dependent feedback on herbivore population size, the relation between grazing pressure and future foraging conditions is essential. We st...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.812682 2023-05-15T13:05:44+02:00 (Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen Kuijper, Dries Pieter Jan Ubels, R Loonen, Maarten J J E LATITUDE: 78.200000 * LONGITUDE: 16.700000 * DATE/TIME START: 2003-06-30T00:00:00 * DATE/TIME END: 2003-06-30T00:00:00 2009-05-28 text/tab-separated-values, 60 data points https://doi.pangaea.de/10.1594/PANGAEA.812682 https://doi.org/10.1594/PANGAEA.812682 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.812682 https://doi.org/10.1594/PANGAEA.812682 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kuijper, Dries Pieter Jan; Ubels, R; Loonen, Maarten J J E (2009): Density-dependent switches in diet: a likely mechanism for negative feedbacks on goose population increase? Polar Biology, 32(12), 1789-1803, https://doi.org/10.1007/s00300-009-0678-2 Acid detergent fibre standard deviation Adventdalen03 Biological sample BIOS DATE/TIME Date/time end Determined according to Goering and Van Soest (1970) Habitat International Polar Year (2007-2008) IPY Proteins Sample amount Sample type Species Spitsbergen Svalbard Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.812682 https://doi.org/10.1007/s00300-009-0678-2 2023-01-20T09:01:11Z Goose grazing on arctic tundra vegetation has shown both positive and negative effects on subsequent foraging conditions. To understand the potential of a density-dependent feedback on herbivore population size, the relation between grazing pressure and future foraging conditions is essential. We studied the effect of increasing grazing pressure of barnacle geese (Branta leucopsis) on Spitsbergen. During the establishment of a breeding colony in the period 1992-2004, the proportion of graminoids decreased in the diet of wild geese, while the percentage of mosses increased. Grazing trials with captive geese in an unexploited area showed a similar shift in diet composition. High-quality food plants were depleted within years and over years. Intake rate declined too and as consequence, metabolisable energy intake rate (MEIR) decreased rapidly with increasing grazing pressure. During three successive years of experimental grazing, MEIR decreased at all levels of grazing pressure and declined below minimal energetic requirements when grazing exceeded natural levels of grazing pressure. This suggests that foraging conditions rapidly decline with increasing grazing pressure in these low-productive habitats. The potential for density-dependent feedbacks on local population increase is discussed. Dataset Adventdalen Arctic Branta leucopsis International Polar Year IPY Polar Biology Svalbard Tundra Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic Svalbard Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(16.700000,16.700000,78.200000,78.200000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Acid detergent fibre standard deviation Adventdalen03 Biological sample BIOS DATE/TIME Date/time end Determined according to Goering and Van Soest (1970) Habitat International Polar Year (2007-2008) IPY Proteins Sample amount Sample type Species Spitsbergen Svalbard |
spellingShingle |
Acid detergent fibre standard deviation Adventdalen03 Biological sample BIOS DATE/TIME Date/time end Determined according to Goering and Van Soest (1970) Habitat International Polar Year (2007-2008) IPY Proteins Sample amount Sample type Species Spitsbergen Svalbard Kuijper, Dries Pieter Jan Ubels, R Loonen, Maarten J J E (Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
topic_facet |
Acid detergent fibre standard deviation Adventdalen03 Biological sample BIOS DATE/TIME Date/time end Determined according to Goering and Van Soest (1970) Habitat International Polar Year (2007-2008) IPY Proteins Sample amount Sample type Species Spitsbergen Svalbard |
description |
Goose grazing on arctic tundra vegetation has shown both positive and negative effects on subsequent foraging conditions. To understand the potential of a density-dependent feedback on herbivore population size, the relation between grazing pressure and future foraging conditions is essential. We studied the effect of increasing grazing pressure of barnacle geese (Branta leucopsis) on Spitsbergen. During the establishment of a breeding colony in the period 1992-2004, the proportion of graminoids decreased in the diet of wild geese, while the percentage of mosses increased. Grazing trials with captive geese in an unexploited area showed a similar shift in diet composition. High-quality food plants were depleted within years and over years. Intake rate declined too and as consequence, metabolisable energy intake rate (MEIR) decreased rapidly with increasing grazing pressure. During three successive years of experimental grazing, MEIR decreased at all levels of grazing pressure and declined below minimal energetic requirements when grazing exceeded natural levels of grazing pressure. This suggests that foraging conditions rapidly decline with increasing grazing pressure in these low-productive habitats. The potential for density-dependent feedbacks on local population increase is discussed. |
format |
Dataset |
author |
Kuijper, Dries Pieter Jan Ubels, R Loonen, Maarten J J E |
author_facet |
Kuijper, Dries Pieter Jan Ubels, R Loonen, Maarten J J E |
author_sort |
Kuijper, Dries Pieter Jan |
title |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
title_short |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
title_full |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
title_fullStr |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
title_full_unstemmed |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen |
title_sort |
(table 2) protein and fibre content of important food plants of barnacle geese (branta leucopsis) in adventdalen |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.812682 https://doi.org/10.1594/PANGAEA.812682 |
op_coverage |
LATITUDE: 78.200000 * LONGITUDE: 16.700000 * DATE/TIME START: 2003-06-30T00:00:00 * DATE/TIME END: 2003-06-30T00:00:00 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(16.700000,16.700000,78.200000,78.200000) |
geographic |
Arctic Svalbard Adventdalen |
geographic_facet |
Arctic Svalbard Adventdalen |
genre |
Adventdalen Arctic Branta leucopsis International Polar Year IPY Polar Biology Svalbard Tundra Spitsbergen |
genre_facet |
Adventdalen Arctic Branta leucopsis International Polar Year IPY Polar Biology Svalbard Tundra Spitsbergen |
op_source |
Supplement to: Kuijper, Dries Pieter Jan; Ubels, R; Loonen, Maarten J J E (2009): Density-dependent switches in diet: a likely mechanism for negative feedbacks on goose population increase? Polar Biology, 32(12), 1789-1803, https://doi.org/10.1007/s00300-009-0678-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.812682 https://doi.org/10.1594/PANGAEA.812682 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.812682 https://doi.org/10.1007/s00300-009-0678-2 |
_version_ |
1766392238499168256 |