Abundance and Diurnal Time Activity Budget of the Threatened Species White-Headed Ducks (Anatidae: Oxyura leucocephala) in an Unprotected Area, Boussedra Marsh, Northeast Algeria

The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes including long-term abundance (five times from 2005 to 2018) and diurnal activity budget (2010−2011 and 2017−2018) with respect to the effect of ha...

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Published inEkológia Bratislava Vol. 40; no. 4; pp. 384 - 391
Main Authors Amine, Hennouni Mohamed, Rabah, Zebsa, Zinette, Bensakhri, Abdeldjalil, Youcefi, Mouslim, Bara, Sadek, Atoussi, Mohammed, Djekoune, Menouar, Saheb, Moussa, Houhamdi
Format Journal Article
LanguageEnglish
Published Bratislava Sciendo 01.12.2021
Institute of Landscape Ecology
Subjects
abundance
Aquatic birds
Behavior
Biodiversity
Boussedra marsh
Breeding seasons
Budgets
Climate change
Diurnal
diurnal activity budget
Endangered & extinct species
Forging
Habitats
Marshes
Northeast Algeria
Open source software
Oxyura leucocephala
Population
Population dynamics
Population number
Populations
Regression analysis
Reproduction (biology)
Seasons
Statistical analysis
Threatened species
Trends
Vegetation
Waterfowl
Wetlands
Algeria
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Abstract The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes including long-term abundance (five times from 2005 to 2018) and diurnal activity budget (2010−2011 and 2017−2018) with respect to the effect of habitat features at Boussedra marsh (unprotected area) were compiled in order to fill some gaps in the status and trend of North African populations. The population size of the white-headed duck decreased over years from 2010 to 2018 by about 52.81%, and was positively associated with interior vegetation area, but not significantly with water surface area. Trends of population dynamics differed among seasons, and the number was higher in wintering than breeding season. Sleeping (44.93%, 23.74%) and feeding (59.09%, 27.43%) were the dominant diurnal activities at both the years of study, respectively. Boussedra marsh plays an important ecological role as a diurnal forging habitat and reproduction site for this threatened species and as a shelter for other waterfowl.
AbstractList The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes including long-term abundance (five times from 2005 to 2018) and diurnal activity budget (2010-2011 and 2017-2018) with respect to the effect of habitat features at Boussedra marsh (unprotected area) were compiled in order to fill some gaps in the status and trend of North African populations. The population size of the white-headed duck decreased over years from 2010 to 2018 by about 52.81%, and was positively associated with interior vegetation area, but not significantly with water surface area. Trends of population dynamics differed among seasons, and the number was higher in wintering than breeding season. Sleeping (44.93%, 23.74%) and feeding (59.09%, 27.43%) were the dominant diurnal activities at both the years of study, respectively. Boussedra marsh plays an important ecological role as a diurnal forging habitat and reproduction site for this threatened species and as a shelter for other waterfowl.
The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes including long-term abundance (five times from 2005 to 2018) and diurnal activity budget (2010−2011 and 2017−2018) with respect to the effect of habitat features at Boussedra marsh (unprotected area) were compiled in order to fill some gaps in the status and trend of North African populations. The population size of the white-headed duck decreased over years from 2010 to 2018 by about 52.81%, and was positively associated with interior vegetation area, but not significantly with water surface area. Trends of population dynamics differed among seasons, and the number was higher in wintering than breeding season. Sleeping (44.93%, 23.74%) and feeding (59.09%, 27.43%) were the dominant diurnal activities at both the years of study, respectively. Boussedra marsh plays an important ecological role as a diurnal forging habitat and reproduction site for this threatened species and as a shelter for other waterfowl.
Abstract The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes including long-term abundance (five times from 2005 to 2018) and diurnal activity budget (2010−2011 and 2017−2018) with respect to the effect of habitat features at Boussedra marsh (unprotected area) were compiled in order to fill some gaps in the status and trend of North African populations. The population size of the white-headed duck decreased over years from 2010 to 2018 by about 52.81%, and was positively associated with interior vegetation area, but not significantly with water surface area. Trends of population dynamics differed among seasons, and the number was higher in wintering than breeding season. Sleeping (44.93%, 23.74%) and feeding (59.09%, 27.43%) were the dominant diurnal activities at both the years of study, respectively. Boussedra marsh plays an important ecological role as a diurnal forging habitat and reproduction site for this threatened species and as a shelter for other waterfowl.
Author Abdeldjalil, Youcefi
Menouar, Saheb
Rabah, Zebsa
Sadek, Atoussi
Mohammed, Djekoune
Moussa, Houhamdi
Amine, Hennouni Mohamed
Zinette, Bensakhri
Mouslim, Bara
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  givenname: Atoussi
  surname: Sadek
  fullname: Sadek, Atoussi
  email: sadek_atoussi@yahoo.fr
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  email: houhamdimoussa@yahoo.fr
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– ident: 2024073001300719484_j_eko-2021-0040_ref_045
  doi: 10.1038/nature18608
– ident: 2024073001300719484_j_eko-2021-0040_ref_042
– ident: 2024073001300719484_j_eko-2021-0040_ref_019
– ident: 2024073001300719484_j_eko-2021-0040_ref_039
  doi: 10.1890/0012-9615(2002)072[0019:TSOCSH]2.0.CO;2
SSID ssj0038268
Score 2.2618802
Snippet The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades. Changes...
Abstract The white-headed duck is a globally threatened species and its populations have become fragmented and undergone major decline in recent decades....
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walterdegruyter
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StartPage 384
SubjectTerms abundance
Aquatic birds
Behavior
Biodiversity
Boussedra marsh
Breeding seasons
Budgets
Climate change
Diurnal
diurnal activity budget
Endangered & extinct species
Forging
Habitats
Marshes
Northeast Algeria
Open source software
Oxyura leucocephala
Population
Population dynamics
Population number
Populations
Regression analysis
Reproduction (biology)
Seasons
Statistical analysis
Threatened species
Trends
Vegetation
Waterfowl
Wetlands
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Title Abundance and Diurnal Time Activity Budget of the Threatened Species White-Headed Ducks (Anatidae: Oxyura leucocephala) in an Unprotected Area, Boussedra Marsh, Northeast Algeria
URI http://www.degruyter.com/doi/10.2478/eko-2021-0040
https://www.proquest.com/docview/2632224522/abstract/
https://doaj.org/article/f17bd888a349481b9e434b44948d58f6
Volume 40
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