Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)

Autores
Tálamo, Andrés; Barchuk, Alicia H.; Garibaldi, Lucas Alejandro; Trucco, Carlos E.; Cardozo, Silvana; Mohr, Federico
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Tálamo, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Bio y Geociencias del Noroeste Argentino (IBIGEO); Argentina.
Fil: Barchuk, Alicia H. Universidad de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.
Fil: Trucco, Carlos E. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Cardozo, Silvana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Mohr, Federico. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Tálamo, Andrés. Universidad Nacional de Salta (UNSa); Argentina.
Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Successful persistence of dry forests depends on tree regeneration, which depends on a balance of complex biotic interactions. In particular, the relative importance and interactive effects of shrubs and herbivores on tree regeneration are unclear. In a manipulative study, we investigated if thornless shrubs have a direct net effect, an indirect positive effect mediated by livestock, and/or an indirect negative effect mediated by small vertebrates on tree regeneration of two key species of Chaco forest (Argentina). In a spatial association study, we also explored the existence of net positive interactions from thorny and thornless shrubs. The number of Schinopsis lorentzii seedlings was highest under artificial shade with native herbivores and livestock excluded. Even excluding livestock, no seedlings were found with natural conditions (native herbivores present with natural shade or direct sunlight) at the end of the experiment. Surprisingly, seedling recruitment was not enhanced under thornless shrubs, because there was a complementary positive effect of shade and interference. Moreover, thornless shrubs had neither positive nor negative effects on regeneration of S. lorentzii. Regeneration of Aspidosperma quebracho-blanco was minimal in all treatments. In agreement with the experiment, spatial distributions of saplings of both tree species were independent of thornless shrubs, but positively associated with thorny shrubs. Our results suggest that in general thornless shrubs may have a negligible effect and thorny shrubs a net positive effect on tree regeneration in dry forests. These findings provide a conceptual framework for testing the impact of biotic interactions on seedling recruitment in other dry forests.
Materia
Livestock
Facilitation
Herbivory
Nurse Plants
Spatial Association
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/3731

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network_name_str RID-UNRN (UNRN)
spelling Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)Tálamo, AndrésBarchuk, Alicia H.Garibaldi, Lucas AlejandroTrucco, Carlos E.Cardozo, SilvanaMohr, FedericoLivestockFacilitationHerbivoryNurse PlantsSpatial AssociationFil: Tálamo, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Bio y Geociencias del Noroeste Argentino (IBIGEO); Argentina.Fil: Barchuk, Alicia H. Universidad de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.Fil: Trucco, Carlos E. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.Fil: Cardozo, Silvana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.Fil: Mohr, Federico. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.Fil: Tálamo, Andrés. Universidad Nacional de Salta (UNSa); Argentina.Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Successful persistence of dry forests depends on tree regeneration, which depends on a balance of complex biotic interactions. In particular, the relative importance and interactive effects of shrubs and herbivores on tree regeneration are unclear. In a manipulative study, we investigated if thornless shrubs have a direct net effect, an indirect positive effect mediated by livestock, and/or an indirect negative effect mediated by small vertebrates on tree regeneration of two key species of Chaco forest (Argentina). In a spatial association study, we also explored the existence of net positive interactions from thorny and thornless shrubs. The number of Schinopsis lorentzii seedlings was highest under artificial shade with native herbivores and livestock excluded. Even excluding livestock, no seedlings were found with natural conditions (native herbivores present with natural shade or direct sunlight) at the end of the experiment. Surprisingly, seedling recruitment was not enhanced under thornless shrubs, because there was a complementary positive effect of shade and interference. Moreover, thornless shrubs had neither positive nor negative effects on regeneration of S. lorentzii. Regeneration of Aspidosperma quebracho-blanco was minimal in all treatments. In agreement with the experiment, spatial distributions of saplings of both tree species were independent of thornless shrubs, but positively associated with thorny shrubs. Our results suggest that in general thornless shrubs may have a negligible effect and thorny shrubs a net positive effect on tree regeneration in dry forests. These findings provide a conceptual framework for testing the impact of biotic interactions on seedling recruitment in other dry forests.Springer2015-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfTalamo, Andrés., Barchuk, Alicia H., Garibaldi, Lucas A.,Trucco, Carlos E., Cardozo, Silvana y et al. (2015). Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina). Springer; Oecologia; 178 (3); 847-854; Doi: 10.1007/s00442-015-3269-70029-85491432-1939https://link.springer.com/article/10.1007%2Fs00442-015-3269-7https://rid.unrn.edu.ar/jspui/handle/20.500.12049/373110.1007/s00442-015-3269-7eng178 (3)Oecologiainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:30Zoai:rid.unrn.edu.ar:20.500.12049/3731instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:31.066RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
title Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
spellingShingle Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
Tálamo, Andrés
Livestock
Facilitation
Herbivory
Nurse Plants
Spatial Association
title_short Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
title_full Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
title_fullStr Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
title_full_unstemmed Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
title_sort Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina)
dc.creator.none.fl_str_mv Tálamo, Andrés
Barchuk, Alicia H.
Garibaldi, Lucas Alejandro
Trucco, Carlos E.
Cardozo, Silvana
Mohr, Federico
author Tálamo, Andrés
author_facet Tálamo, Andrés
Barchuk, Alicia H.
Garibaldi, Lucas Alejandro
Trucco, Carlos E.
Cardozo, Silvana
Mohr, Federico
author_role author
author2 Barchuk, Alicia H.
Garibaldi, Lucas Alejandro
Trucco, Carlos E.
Cardozo, Silvana
Mohr, Federico
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Livestock
Facilitation
Herbivory
Nurse Plants
Spatial Association
topic Livestock
Facilitation
Herbivory
Nurse Plants
Spatial Association
dc.description.none.fl_txt_mv Fil: Tálamo, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Bio y Geociencias del Noroeste Argentino (IBIGEO); Argentina.
Fil: Barchuk, Alicia H. Universidad de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.
Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro. Sede Andina; Argentina.
Fil: Trucco, Carlos E. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Cardozo, Silvana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Mohr, Federico. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Tálamo, Andrés. Universidad Nacional de Salta (UNSa); Argentina.
Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Successful persistence of dry forests depends on tree regeneration, which depends on a balance of complex biotic interactions. In particular, the relative importance and interactive effects of shrubs and herbivores on tree regeneration are unclear. In a manipulative study, we investigated if thornless shrubs have a direct net effect, an indirect positive effect mediated by livestock, and/or an indirect negative effect mediated by small vertebrates on tree regeneration of two key species of Chaco forest (Argentina). In a spatial association study, we also explored the existence of net positive interactions from thorny and thornless shrubs. The number of Schinopsis lorentzii seedlings was highest under artificial shade with native herbivores and livestock excluded. Even excluding livestock, no seedlings were found with natural conditions (native herbivores present with natural shade or direct sunlight) at the end of the experiment. Surprisingly, seedling recruitment was not enhanced under thornless shrubs, because there was a complementary positive effect of shade and interference. Moreover, thornless shrubs had neither positive nor negative effects on regeneration of S. lorentzii. Regeneration of Aspidosperma quebracho-blanco was minimal in all treatments. In agreement with the experiment, spatial distributions of saplings of both tree species were independent of thornless shrubs, but positively associated with thorny shrubs. Our results suggest that in general thornless shrubs may have a negligible effect and thorny shrubs a net positive effect on tree regeneration in dry forests. These findings provide a conceptual framework for testing the impact of biotic interactions on seedling recruitment in other dry forests.
description Fil: Tálamo, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Bio y Geociencias del Noroeste Argentino (IBIGEO); Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015-02-25
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Talamo, Andrés., Barchuk, Alicia H., Garibaldi, Lucas A.,Trucco, Carlos E., Cardozo, Silvana y et al. (2015). Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina). Springer; Oecologia; 178 (3); 847-854; Doi: 10.1007/s00442-015-3269-7
0029-8549
1432-1939
https://link.springer.com/article/10.1007%2Fs00442-015-3269-7
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3731
10.1007/s00442-015-3269-7
identifier_str_mv Talamo, Andrés., Barchuk, Alicia H., Garibaldi, Lucas A.,Trucco, Carlos E., Cardozo, Silvana y et al. (2015). Disentangling the effects of shrubs and herbivores on tree regeneration in a dry Chaco forest (Argentina). Springer; Oecologia; 178 (3); 847-854; Doi: 10.1007/s00442-015-3269-7
0029-8549
1432-1939
10.1007/s00442-015-3269-7
url https://link.springer.com/article/10.1007%2Fs00442-015-3269-7
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3731
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 178 (3)
Oecologia
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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