The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans
The intertidal areas on Inhaca island provide important food resources for shorebirds as well as the local population. Average bird density is 2-6 individuals/ha during summer, decreasing to 0.3 in winter, which is one of the lowest records for the African coasts. Whimbrels Numenius phaeopus and cur...
Published in: | Biological Conservation |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1996
|
Subjects: | |
Online Access: | https://research.wur.nl/en/publications/the-exploitation-of-intertidal-food-resources-in-inhaca-bay-mozam https://doi.org/10.1016/S0006-3207(96)00050-X |
id |
ftunivwagenin:oai:library.wur.nl:wurpubs/349691 |
---|---|
record_format |
openpolar |
spelling |
ftunivwagenin:oai:library.wur.nl:wurpubs/349691 2024-02-04T10:03:22+01:00 The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans de Boer, W.F. Longamane, F.A. 1996 application/pdf https://research.wur.nl/en/publications/the-exploitation-of-intertidal-food-resources-in-inhaca-bay-mozam https://doi.org/10.1016/S0006-3207(96)00050-X en eng https://edepot.wur.nl/44165 https://research.wur.nl/en/publications/the-exploitation-of-intertidal-food-resources-in-inhaca-bay-mozam doi:10.1016/S0006-3207(96)00050-X info:eu-repo/semantics/restrictedAccess Wageningen University & Research Biological Conservation 78 (1996) 3 ISSN: 0006-3207 abundance banc-darguin berg river estuary callianassa-kraussi disturbance mauritania responses south-africa waders waterbirds info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 1996 ftunivwagenin https://doi.org/10.1016/S0006-3207(96)00050-X 2024-01-10T23:29:20Z The intertidal areas on Inhaca island provide important food resources for shorebirds as well as the local population. Average bird density is 2-6 individuals/ha during summer, decreasing to 0.3 in winter, which is one of the lowest records for the African coasts. Whimbrels Numenius phaeopus and curlew sandpipers Calidris ferrugineaare the most abundant species. Total littoral fauna consumption is low, estimated at 2.5 g ash-free dry weight/m2/year, of which only 18% is harvested by humans. Species preferences, numbers and weights are given for humans who collect invertebrates. The influence of human presence on bird behaviour is measured, using Minimal Approach Distances (MAD), foraging activity changes and people-bird abundance correlation. Larger birds have longer MADs and their foraging activity decreases earlier when approached by humans. The large, territorial whimbrel is most influenced by human presence and this interference competition is responsible for a 34% reduction of foraging time. Article in Journal/Newspaper Numenius phaeopus Whimbrel Wageningen UR (University & Research Centre): Digital Library Biological Conservation 78 3 295 303 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
abundance banc-darguin berg river estuary callianassa-kraussi disturbance mauritania responses south-africa waders waterbirds |
spellingShingle |
abundance banc-darguin berg river estuary callianassa-kraussi disturbance mauritania responses south-africa waders waterbirds de Boer, W.F. Longamane, F.A. The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
topic_facet |
abundance banc-darguin berg river estuary callianassa-kraussi disturbance mauritania responses south-africa waders waterbirds |
description |
The intertidal areas on Inhaca island provide important food resources for shorebirds as well as the local population. Average bird density is 2-6 individuals/ha during summer, decreasing to 0.3 in winter, which is one of the lowest records for the African coasts. Whimbrels Numenius phaeopus and curlew sandpipers Calidris ferrugineaare the most abundant species. Total littoral fauna consumption is low, estimated at 2.5 g ash-free dry weight/m2/year, of which only 18% is harvested by humans. Species preferences, numbers and weights are given for humans who collect invertebrates. The influence of human presence on bird behaviour is measured, using Minimal Approach Distances (MAD), foraging activity changes and people-bird abundance correlation. Larger birds have longer MADs and their foraging activity decreases earlier when approached by humans. The large, territorial whimbrel is most influenced by human presence and this interference competition is responsible for a 34% reduction of foraging time. |
format |
Article in Journal/Newspaper |
author |
de Boer, W.F. Longamane, F.A. |
author_facet |
de Boer, W.F. Longamane, F.A. |
author_sort |
de Boer, W.F. |
title |
The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
title_short |
The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
title_full |
The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
title_fullStr |
The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
title_full_unstemmed |
The exploitation of intertidal food resources in Inhaca bay, Mozambique, by shorebirds and humans |
title_sort |
exploitation of intertidal food resources in inhaca bay, mozambique, by shorebirds and humans |
publishDate |
1996 |
url |
https://research.wur.nl/en/publications/the-exploitation-of-intertidal-food-resources-in-inhaca-bay-mozam https://doi.org/10.1016/S0006-3207(96)00050-X |
genre |
Numenius phaeopus Whimbrel |
genre_facet |
Numenius phaeopus Whimbrel |
op_source |
Biological Conservation 78 (1996) 3 ISSN: 0006-3207 |
op_relation |
https://edepot.wur.nl/44165 https://research.wur.nl/en/publications/the-exploitation-of-intertidal-food-resources-in-inhaca-bay-mozam doi:10.1016/S0006-3207(96)00050-X |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/S0006-3207(96)00050-X |
container_title |
Biological Conservation |
container_volume |
78 |
container_issue |
3 |
container_start_page |
295 |
op_container_end_page |
303 |
_version_ |
1789970722910633984 |