(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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
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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PANGAEA - Data Publisher for Earth & Environmental Science
2009
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Online Access: | https://dx.doi.org/10.1594/pangaea.812682 https://doi.pangaea.de/10.1594/PANGAEA.812682 |
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ftdatacite:10.1594/pangaea.812682 2023-05-15T13:05:47+02:00 (Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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 Kuijper, Dries Pieter Jan Ubels, R Loonen, Maarten J J E 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.812682 https://doi.pangaea.de/10.1594/PANGAEA.812682 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1007/s00300-009-0678-2 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Habitat DATE/TIME Date/time end Species Sample type Sample amount Protein Protein, standard deviation Acid detergent fibre Acid detergent fibre, standard deviation Biological sample Determined according to Goering and Van Soest 1970 International Polar Year 2007-2008 IPY Supplementary Dataset dataset Dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.812682 https://doi.org/10.1007/s00300-009-0678-2 2021-11-05T12:55:41Z 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. : During sampling, selective grazing by geese was mimicked by selecting only live leaf tips of every encountered plant or fresh tops of mosses. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 Dataset Adventdalen Arctic Branta leucopsis International Polar Year IPY Tundra Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Habitat DATE/TIME Date/time end Species Sample type Sample amount Protein Protein, standard deviation Acid detergent fibre Acid detergent fibre, standard deviation Biological sample Determined according to Goering and Van Soest 1970 International Polar Year 2007-2008 IPY |
spellingShingle |
Habitat DATE/TIME Date/time end Species Sample type Sample amount Protein Protein, standard deviation Acid detergent fibre Acid detergent fibre, standard deviation Biological sample Determined according to Goering and Van Soest 1970 International Polar Year 2007-2008 IPY 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, 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 |
topic_facet |
Habitat DATE/TIME Date/time end Species Sample type Sample amount Protein Protein, standard deviation Acid detergent fibre Acid detergent fibre, standard deviation Biological sample Determined according to Goering and Van Soest 1970 International Polar Year 2007-2008 IPY |
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. : During sampling, selective grazing by geese was mimicked by selecting only live leaf tips of every encountered plant or fresh tops of mosses. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 |
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, 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 |
title_short |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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 |
title_full |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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 |
title_fullStr |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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 |
title_full_unstemmed |
(Table 2) Protein and fibre content of important food plants of barnacle geese (Branta leucopsis) in Adventdalen, 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 |
title_sort |
(table 2) protein and fibre content of important food plants of barnacle geese (branta leucopsis) in adventdalen, 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 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.812682 https://doi.pangaea.de/10.1594/PANGAEA.812682 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Adventdalen Arctic |
geographic_facet |
Adventdalen Arctic |
genre |
Adventdalen Arctic Branta leucopsis International Polar Year IPY Tundra Spitsbergen |
genre_facet |
Adventdalen Arctic Branta leucopsis International Polar Year IPY Tundra Spitsbergen |
op_relation |
https://dx.doi.org/10.1007/s00300-009-0678-2 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.812682 https://doi.org/10.1007/s00300-009-0678-2 |
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1766393972657225728 |