Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa

Mostrar todas las versiones(3)

Woody plant invasion in grassland ecosystems is a worldwide phenomenon, and biotic interactions as competition and predation have been invoked as a possible barrier to woody encroachment in many ecosystems. We evaluated the role of rodents as seed predators in Pampean grasslands, and we assessed the...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Busch, Maria, Knight, Carol D., Hodara, Karina, Muschetto, Emiliano
Publicado:	2012
Materias:	Grassland Rodents Seed predators Woody invaders biological invasion deciduous tree experimental study grassland invasive species legume native species population cycle rodent seed predation Argentina Pampas Gleditsia Prosopis Prosopis caldenia Rodentia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09123814_v27_n2_p369_Busch http://hdl.handle.net/20.500.12110/paper_09123814_v27_n2_p369_Busch
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09123814_v27_n2_p369_Busch
record_format	dspace
spelling	paper:paper_09123814_v27_n2_p369_Busch2023-06-08T15:49:58Z Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa Busch, Maria Knight, Carol D. Hodara, Karina Muschetto, Emiliano Grassland Rodents Seed predators Woody invaders biological invasion deciduous tree experimental study grassland invasive species legume native species population cycle rodent seed predation Argentina Pampas Gleditsia Prosopis Prosopis caldenia Rodentia Woody plant invasion in grassland ecosystems is a worldwide phenomenon, and biotic interactions as competition and predation have been invoked as a possible barrier to woody encroachment in many ecosystems. We evaluated the role of rodents as seed predators in Pampean grasslands, and we assessed the differences in removal by rodents between one native species, Prosopis caldenia (Caldén) and one exotic species, Gleditisia triacanthos (Honey locust). The experiment was conducted at different phases of the rodent population cycle in two grassland communities, a remnant of a native grassland and a post agriculture grassland (old field). The amount of seed loss caused by predation was estimated by a bait-removal experiment in foraging stations. We estimated the frequency of foraging stations with consumption, the overall amount of seed predation and the individual rate of seed predation. The total amount of seed removal and the individual rate of seed removal were higher for P. caldenia than for G. triacanthos, in the native grassland than in the old field, and in autumn when rodent density was maximum. Overall, the role of rodents on woody seed removal varied according to the plant species and depending on the local conditions that vary through time and space. © 2011 The Ecological Society of Japan. Fil:Busch, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Knight, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hodara, K. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Muschetto, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09123814_v27_n2_p369_Busch http://hdl.handle.net/20.500.12110/paper_09123814_v27_n2_p369_Busch
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Grassland Rodents Seed predators Woody invaders biological invasion deciduous tree experimental study grassland invasive species legume native species population cycle rodent seed predation Argentina Pampas Gleditsia Prosopis Prosopis caldenia Rodentia
spellingShingle	Grassland Rodents Seed predators Woody invaders biological invasion deciduous tree experimental study grassland invasive species legume native species population cycle rodent seed predation Argentina Pampas Gleditsia Prosopis Prosopis caldenia Rodentia Busch, Maria Knight, Carol D. Hodara, Karina Muschetto, Emiliano Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
topic_facet	Grassland Rodents Seed predators Woody invaders biological invasion deciduous tree experimental study grassland invasive species legume native species population cycle rodent seed predation Argentina Pampas Gleditsia Prosopis Prosopis caldenia Rodentia
description	Woody plant invasion in grassland ecosystems is a worldwide phenomenon, and biotic interactions as competition and predation have been invoked as a possible barrier to woody encroachment in many ecosystems. We evaluated the role of rodents as seed predators in Pampean grasslands, and we assessed the differences in removal by rodents between one native species, Prosopis caldenia (Caldén) and one exotic species, Gleditisia triacanthos (Honey locust). The experiment was conducted at different phases of the rodent population cycle in two grassland communities, a remnant of a native grassland and a post agriculture grassland (old field). The amount of seed loss caused by predation was estimated by a bait-removal experiment in foraging stations. We estimated the frequency of foraging stations with consumption, the overall amount of seed predation and the individual rate of seed predation. The total amount of seed removal and the individual rate of seed removal were higher for P. caldenia than for G. triacanthos, in the native grassland than in the old field, and in autumn when rodent density was maximum. Overall, the role of rodents on woody seed removal varied according to the plant species and depending on the local conditions that vary through time and space. © 2011 The Ecological Society of Japan.
author	Busch, Maria Knight, Carol D. Hodara, Karina Muschetto, Emiliano
author_facet	Busch, Maria Knight, Carol D. Hodara, Karina Muschetto, Emiliano
author_sort	Busch, Maria
title	Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
title_short	Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
title_full	Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
title_fullStr	Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
title_full_unstemmed	Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
title_sort	rodent seed predation on tree invader species in grassland habitats of the inland pampa
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09123814_v27_n2_p369_Busch http://hdl.handle.net/20.500.12110/paper_09123814_v27_n2_p369_Busch
work_keys_str_mv	AT buschmaria rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT knightcarold rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT hodarakarina rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT muschettoemiliano rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa
_version_	1768542511942336512

Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa

Ejemplares similares