Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources?
Foraging is the key behavior of waterbirds, which profoundly affects the survival of their population, and it is affected by interspecific interaction. At Shengjin Lake in China, owing to the reduced availability of suitable habitats for a large population of migratory waterbirds (especially wild ge...
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ftmdpi:oai:mdpi.com:/1424-2818/12/3/105/ 2023-08-20T03:59:50+02:00 Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? Zhengrong Zhu Lizhi Zhou Chao Yu Lei Cheng Wenbin Xu Yunwei Song agris 2020-03-18 application/pdf https://doi.org/10.3390/d12030105 EN eng Multidisciplinary Digital Publishing Institute Animal Diversity https://dx.doi.org/10.3390/d12030105 https://creativecommons.org/licenses/by/4.0/ Diversity; Volume 12; Issue 3; Pages: 105 mixed-species foraging hooded crane wild geese wintering waterbird interspecific interaction Shengjin Lake Text 2020 ftmdpi https://doi.org/10.3390/d12030105 2023-07-31T23:15:14Z Foraging is the key behavior of waterbirds, which profoundly affects the survival of their population, and it is affected by interspecific interaction. At Shengjin Lake in China, owing to the reduced availability of suitable habitats for a large population of migratory waterbirds (especially wild geese) over winter, mixed species foraging inevitably occurs. This study aimed to investigate whether mixed-species foraging affects the foraging of hooded cranes (Grus monacha). Fields surveys were carried out at Shengjin Lake from November 2018 to March 2019. Mixed-species foraging was surveyed between the flocks of hooded cranes and three species of geese, greater white-fronted geese (Anser albifrons), lesser white-fronted geese (Anser erythropus) and bean geese (Anser fabalis). Instantaneous scanning and focal animal methods were used to collect behavioral samples of hooded cranes. The quadrat method was used to survey the food density in three habitats: meadows, mudflats, and paddy fields. The results showed that the foraging success rate of hooded cranes was not significantly correlated with food density and the relative flock size in the mixed-species foraging flock in meadows, but a significant negative correlation with the relative flock size in mudflats. However in paddy fields it was a significant positive correlation with the relative flock size. Foraging efforts of hooded cranes were negatively correlated with food density and positively correlated with the relative flock size in meadows. In mudflats, foraging efforts of hooded cranes had a significant positively correlation with the relative flock size, however, there was a significant negative correlation with the relative flock size in paddy fields. To sum up, larger numbers of geese mixed with hooded cranes has a favorable effect on the foraging of hooded cranes in meadows and mudflats, however, the reverse was observed in the paddy fields. Text Anser erythropus Anser fabalis MDPI Open Access Publishing Diversity 12 3 105 |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
mixed-species foraging hooded crane wild geese wintering waterbird interspecific interaction Shengjin Lake |
spellingShingle |
mixed-species foraging hooded crane wild geese wintering waterbird interspecific interaction Shengjin Lake Zhengrong Zhu Lizhi Zhou Chao Yu Lei Cheng Wenbin Xu Yunwei Song Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
topic_facet |
mixed-species foraging hooded crane wild geese wintering waterbird interspecific interaction Shengjin Lake |
description |
Foraging is the key behavior of waterbirds, which profoundly affects the survival of their population, and it is affected by interspecific interaction. At Shengjin Lake in China, owing to the reduced availability of suitable habitats for a large population of migratory waterbirds (especially wild geese) over winter, mixed species foraging inevitably occurs. This study aimed to investigate whether mixed-species foraging affects the foraging of hooded cranes (Grus monacha). Fields surveys were carried out at Shengjin Lake from November 2018 to March 2019. Mixed-species foraging was surveyed between the flocks of hooded cranes and three species of geese, greater white-fronted geese (Anser albifrons), lesser white-fronted geese (Anser erythropus) and bean geese (Anser fabalis). Instantaneous scanning and focal animal methods were used to collect behavioral samples of hooded cranes. The quadrat method was used to survey the food density in three habitats: meadows, mudflats, and paddy fields. The results showed that the foraging success rate of hooded cranes was not significantly correlated with food density and the relative flock size in the mixed-species foraging flock in meadows, but a significant negative correlation with the relative flock size in mudflats. However in paddy fields it was a significant positive correlation with the relative flock size. Foraging efforts of hooded cranes were negatively correlated with food density and positively correlated with the relative flock size in meadows. In mudflats, foraging efforts of hooded cranes had a significant positively correlation with the relative flock size, however, there was a significant negative correlation with the relative flock size in paddy fields. To sum up, larger numbers of geese mixed with hooded cranes has a favorable effect on the foraging of hooded cranes in meadows and mudflats, however, the reverse was observed in the paddy fields. |
format |
Text |
author |
Zhengrong Zhu Lizhi Zhou Chao Yu Lei Cheng Wenbin Xu Yunwei Song |
author_facet |
Zhengrong Zhu Lizhi Zhou Chao Yu Lei Cheng Wenbin Xu Yunwei Song |
author_sort |
Zhengrong Zhu |
title |
Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
title_short |
Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
title_full |
Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
title_fullStr |
Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
title_full_unstemmed |
Do Geese Facilitate or Compete with Wintering Hooded Cranes (Grus monacha) for Forage Resources? |
title_sort |
do geese facilitate or compete with wintering hooded cranes (grus monacha) for forage resources? |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/d12030105 |
op_coverage |
agris |
genre |
Anser erythropus Anser fabalis |
genre_facet |
Anser erythropus Anser fabalis |
op_source |
Diversity; Volume 12; Issue 3; Pages: 105 |
op_relation |
Animal Diversity https://dx.doi.org/10.3390/d12030105 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/d12030105 |
container_title |
Diversity |
container_volume |
12 |
container_issue |
3 |
container_start_page |
105 |
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