Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens

The Reddish Egret (Egretta rufescens) remains underrepresented in waterbird research despite its status as the rarest heron in North America and a near-threatened species. The Reddish Egret is also a habitat specialist, and is restricted to shallow, coastal wetlands throughout its range. We utilized...

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Main Authors: Lianne M. Koczur, Bart M. Ballard, M. Clay. Green, David G. Hewitt, Scott E. Henke
Format: Article
Language:English
Published: Resilience Alliance 2018-12-01
Series:Avian Conservation and Ecology
Subjects:
Online Access:http://www.ace-eco.org/vol13/iss2/art10/
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author Lianne M. Koczur
Bart M. Ballard
M. Clay. Green
David G. Hewitt
Scott E. Henke
author_facet Lianne M. Koczur
Bart M. Ballard
M. Clay. Green
David G. Hewitt
Scott E. Henke
author_sort Lianne M. Koczur
collection DOAJ
description The Reddish Egret (Egretta rufescens) remains underrepresented in waterbird research despite its status as the rarest heron in North America and a near-threatened species. The Reddish Egret is also a habitat specialist, and is restricted to shallow, coastal wetlands throughout its range. We utilized GPS-equipped platform terminal transmitters to examine the breeding ecology of Reddish Egrets (n = 28) in Texas. Although individuals exhibited varying degrees of fidelity to specific colonies, there was fidelity to particular areas within the Laguna Madre, Texas, across years. Reddish Egrets also exhibited fidelity to foraging areas across years and selected nonvegetated tidal flats as foraging habitat. Long-distance migrants began the breeding season two weeks later than residents on average; however, the timing of breeding did not appear to influence nest success. We also found that the amount of available foraging habitat within 15 km of the colony was associated with the abundance of Reddish Egret breeding pairs at colonies.
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spelling doaj.art-4a770e88242c453dbb582799457772242023-01-02T03:49:43ZengResilience AllianceAvian Conservation and Ecology1712-65682018-12-011321010.5751/ACE-01258-1302101258Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescensLianne M. Koczur0Bart M. Ballard1M. Clay. Green2David G. Hewitt3Scott E. Henke4Caesar Kleberg Wildlife Research Institute, Texas A&M University-KingsvilleCaesar Kleberg Wildlife Research Institute, Texas A&M University-KingsvilleDepartment of Biology, Texas State UniversityCaesar Kleberg Wildlife Research Institute, Texas A&M University-KingsvilleCaesar Kleberg Wildlife Research Institute, Texas A&M University-KingsvilleThe Reddish Egret (Egretta rufescens) remains underrepresented in waterbird research despite its status as the rarest heron in North America and a near-threatened species. The Reddish Egret is also a habitat specialist, and is restricted to shallow, coastal wetlands throughout its range. We utilized GPS-equipped platform terminal transmitters to examine the breeding ecology of Reddish Egrets (n = 28) in Texas. Although individuals exhibited varying degrees of fidelity to specific colonies, there was fidelity to particular areas within the Laguna Madre, Texas, across years. Reddish Egrets also exhibited fidelity to foraging areas across years and selected nonvegetated tidal flats as foraging habitat. Long-distance migrants began the breeding season two weeks later than residents on average; however, the timing of breeding did not appear to influence nest success. We also found that the amount of available foraging habitat within 15 km of the colony was associated with the abundance of Reddish Egret breeding pairs at colonies.http://www.ace-eco.org/vol13/iss2/art10/breeding<span style="font-style: normal">Egretta rufescens</span>habitat useReddish EgretTexas
spellingShingle Lianne M. Koczur
Bart M. Ballard
M. Clay. Green
David G. Hewitt
Scott E. Henke
Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
Avian Conservation and Ecology
breeding
<span style="font-style: normal">Egretta rufescens</span>
habitat use
Reddish Egret
Texas
title Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
title_full Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
title_fullStr Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
title_full_unstemmed Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
title_short Breeding ecology and habitat use of North America's rarest Ardeidae: the Reddish Egret Egretta rufescens
title_sort breeding ecology and habitat use of north america s rarest ardeidae the reddish egret egretta rufescens
topic breeding
<span style="font-style: normal">Egretta rufescens</span>
habitat use
Reddish Egret
Texas
url http://www.ace-eco.org/vol13/iss2/art10/
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