Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study

Cultivated and associated plant diversity, were compared (the last at 3 scales: alpha, beta and gamma), in 2 farms under conventional and organic management in La Plata. The relevé method was used for associated species recording in spring and summer. At farm level we assessed total spontaneous spec...

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Detalles Bibliográficos
Autores principales:	Stupino, Susana Andrea, Frangi, Jorge Luis, Sarandón, Santiago Javier, Arturi, Marcelo Fabián, Ferreira, Ana Clara
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2008
Materias:	Ciencias Agrarias La Plata (Buenos Aires, Argentina) Cultivos Agrícolas horticultura, agrobiodiversidad, diversidad asociada, agroecosistemas horticulture, agrobiodiversity, associated diversity, agroecosystems
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/69113 http://revistas.aba-agroecologia.org.br/index.php/rbagroecologia/article/view/7532/5439
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

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institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Agrarias La Plata (Buenos Aires, Argentina) Cultivos Agrícolas horticultura, agrobiodiversidad, diversidad asociada, agroecosistemas horticulture, agrobiodiversity, associated diversity, agroecosystems
spellingShingle	Ciencias Agrarias La Plata (Buenos Aires, Argentina) Cultivos Agrícolas horticultura, agrobiodiversidad, diversidad asociada, agroecosistemas horticulture, agrobiodiversity, associated diversity, agroecosystems Stupino, Susana Andrea Frangi, Jorge Luis Sarandón, Santiago Javier Arturi, Marcelo Fabián Ferreira, Ana Clara Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
topic_facet	Ciencias Agrarias La Plata (Buenos Aires, Argentina) Cultivos Agrícolas horticultura, agrobiodiversidad, diversidad asociada, agroecosistemas horticulture, agrobiodiversity, associated diversity, agroecosystems
description	Cultivated and associated plant diversity, were compared (the last at 3 scales: alpha, beta and gamma), in 2 farms under conventional and organic management in La Plata. The relevé method was used for associated species recording in spring and summer. At farm level we assessed total spontaneous specific richness (γ diversity), genus and family richness. Richness – species total per crop- was used as index of α diversity. We also calculated the median richness per crop sample unit. A randomization method was used to assess the degree for which differences between the observed and expected median richness per crop in a management style are attributable to chance. β diversity values were compared to a random framework, separately for each farm. Results indicate that the organic farm had higher associated diversity at all levels; also, higher number of cultivated plots and species, and proportion of exclusive, perennials, native and utilitarian species. In the organic farm crops with higher or lower median richness than expected, and higher β, indicated higher spatial and seasonal heterogeneity. Conventional management limited spontaneous plants to a reduced, homogeneously distributed group. Other factors may influence associated plant diversity.
format	Articulo Articulo
author	Stupino, Susana Andrea Frangi, Jorge Luis Sarandón, Santiago Javier Arturi, Marcelo Fabián Ferreira, Ana Clara
author_facet	Stupino, Susana Andrea Frangi, Jorge Luis Sarandón, Santiago Javier Arturi, Marcelo Fabián Ferreira, Ana Clara
author_sort	Stupino, Susana Andrea
title	Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
title_short	Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
title_full	Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
title_fullStr	Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
title_full_unstemmed	Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study
title_sort	plant diversity in two horticultural farms under organic and conventional management in la plata, argentina: a case study
publishDate	2008
url	http://sedici.unlp.edu.ar/handle/10915/69113 http://revistas.aba-agroecologia.org.br/index.php/rbagroecologia/article/view/7532/5439
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Plant diversity in two horticultural farms under organic and conventional management in La Plata, Argentina: A case study

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