Evaluation of unharvested refugia for grassland bird conservation within active hayfields

Agricultural grasslands such as hayfields and pastures frequently act as ecological traps for grassland birds because of harvest practices that interfere with successful nesting. Conservation measures that improve reproductive success while allowing farmers to maintain agricultural outputs are neede...

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Autores principales:	Michael C. Allen, Joanna Burger, Julie L. Lockwood
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2019
Materias:	agriculture conservation experiment grassland birds hayfield mowing private lands Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/d41b895176dd46e583ff1150c9072971
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spelling	oai:doaj.org-article:d41b895176dd46e583ff1150c90729712021-12-02T12:13:27ZEvaluation of unharvested refugia for grassland bird conservation within active hayfields1712-6568https://doaj.org/article/d41b895176dd46e583ff1150c90729712019-12-01T00:00:00Zhttp://www.ace-eco.org/vol14/iss2/art15/https://doaj.org/toc/1712-6568Agricultural grasslands such as hayfields and pastures frequently act as ecological traps for grassland birds because of harvest practices that interfere with successful nesting. Conservation measures that improve reproductive success while allowing farmers to maintain agricultural outputs are needed to help stem widespread grassland bird population declines. We evaluated leaving uncut patches ("refugia") within harvested hayfields to provide cover, reduce field abandonment, and promote renesting by three grassland species: Bobolink (Dolichonyx oryzivorus), Grasshopper Sparrow (Ammodramus savannarum), and Eastern Meadowlark (Sturnella magna). In 2014-2016, we left five refugia (0.25 ha each) within a 23-ha hayfield in New Jersey, USA. We found refugia were used more relative to cut areas by Bobolink and Grasshopper Sparrow, but not by Eastern Meadowlark. The presence of refugia also appears to have reduced field abandonment following harvest in all three years for Bobolink and Grasshopper Sparrow when compared to two adjacent fields that lacked refugia. We observed territorial singing, but no evidence of renesting in refugia following harvest, though this may relate to the relatively late harvest dates (26 Jun-3 Aug). Response patterns were consistent over the three years of the study and suggest that leaving small refugia within active hayfields could be a valuable supplement to current management incentive approaches.Michael C. AllenJoanna BurgerJulie L. LockwoodResilience Alliancearticleagricultureconservationexperimentgrassland birdshayfieldmowingprivate landsPlant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 14, Iss 2, p 15 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	agriculture conservation experiment grassland birds hayfield mowing private lands Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	agriculture conservation experiment grassland birds hayfield mowing private lands Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Michael C. Allen Joanna Burger Julie L. Lockwood Evaluation of unharvested refugia for grassland bird conservation within active hayfields
description	Agricultural grasslands such as hayfields and pastures frequently act as ecological traps for grassland birds because of harvest practices that interfere with successful nesting. Conservation measures that improve reproductive success while allowing farmers to maintain agricultural outputs are needed to help stem widespread grassland bird population declines. We evaluated leaving uncut patches ("refugia") within harvested hayfields to provide cover, reduce field abandonment, and promote renesting by three grassland species: Bobolink (Dolichonyx oryzivorus), Grasshopper Sparrow (Ammodramus savannarum), and Eastern Meadowlark (Sturnella magna). In 2014-2016, we left five refugia (0.25 ha each) within a 23-ha hayfield in New Jersey, USA. We found refugia were used more relative to cut areas by Bobolink and Grasshopper Sparrow, but not by Eastern Meadowlark. The presence of refugia also appears to have reduced field abandonment following harvest in all three years for Bobolink and Grasshopper Sparrow when compared to two adjacent fields that lacked refugia. We observed territorial singing, but no evidence of renesting in refugia following harvest, though this may relate to the relatively late harvest dates (26 Jun-3 Aug). Response patterns were consistent over the three years of the study and suggest that leaving small refugia within active hayfields could be a valuable supplement to current management incentive approaches.
format	article
author	Michael C. Allen Joanna Burger Julie L. Lockwood
author_facet	Michael C. Allen Joanna Burger Julie L. Lockwood
author_sort	Michael C. Allen
title	Evaluation of unharvested refugia for grassland bird conservation within active hayfields
title_short	Evaluation of unharvested refugia for grassland bird conservation within active hayfields
title_full	Evaluation of unharvested refugia for grassland bird conservation within active hayfields
title_fullStr	Evaluation of unharvested refugia for grassland bird conservation within active hayfields
title_full_unstemmed	Evaluation of unharvested refugia for grassland bird conservation within active hayfields
title_sort	evaluation of unharvested refugia for grassland bird conservation within active hayfields
publisher	Resilience Alliance
publishDate	2019
url	https://doaj.org/article/d41b895176dd46e583ff1150c9072971
work_keys_str_mv	AT michaelcallen evaluationofunharvestedrefugiaforgrasslandbirdconservationwithinactivehayfields AT joannaburger evaluationofunharvestedrefugiaforgrasslandbirdconservationwithinactivehayfields AT juliellockwood evaluationofunharvestedrefugiaforgrasslandbirdconservationwithinactivehayfields
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Evaluation of unharvested refugia for grassland bird conservation within active hayfields

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