Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa
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...
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todo:paper_09123814_v27_n2_p369_Busch2023-10-03T15:44:40Z Rodent Seed Predation on Tree Invader Species in Grassland Habitats of the Inland Pampa Busch, M. Knight, C. Mazía, C.N. Hodara, K. Muschetto, E. Chaneton, E. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, M. Knight, C. Mazía, C.N. Hodara, K. Muschetto, E. Chaneton, E. 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. |
| format |
JOUR |
| author |
Busch, M. Knight, C. Mazía, C.N. Hodara, K. Muschetto, E. Chaneton, E. |
| author_facet |
Busch, M. Knight, C. Mazía, C.N. Hodara, K. Muschetto, E. Chaneton, E. |
| author_sort |
Busch, M. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_09123814_v27_n2_p369_Busch |
| work_keys_str_mv |
AT buschm rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT knightc rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT maziacn rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT hodarak rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT muschettoe rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa AT chanetone rodentseedpredationontreeinvaderspeciesingrasslandhabitatsoftheinlandpampa |
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1807315814745899008 |