Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation

Seed dispersal facilitation among plant neighbours can be defined as an increase in the number, distances, and/or places reached by a plant’s seeds that is due to the presence of co-fruiting plant neighbours with which it shares seed dispersers. Many cases of this phenomenon have been desc...

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Autor principal:	REJMÁNEK,MARCEL
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2015
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000100004
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spelling	oai:scielo:S0717-664320150001000042015-08-19Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitationREJMÁNEK,MARCEL Seed dispersal facilitation among plant neighbours can be defined as an increase in the number, distances, and/or places reached by a plant’s seeds that is due to the presence of co-fruiting plant neighbours with which it shares seed dispersers. Many cases of this phenomenon have been described among native species and some also among introduced invasive species. Moreover, facilitation of native species recruitment by non-native fleshy-fruiting trees has been reported. Surprisingly, seed dispersal facilitation of exotic species by native species is either less common or has not been properly documented so far. Casual observation of secondary vegetation in La Araucanía Region, Chile, suggests that more individuals of exotic fleshy-fruiting bird-dispersed Rubus praecox (Rosaceae) are established under the native fleshy fruiting bird-dispersed subdioecious tree Aristotelia chilensis (Elaeocarpaceae) than under other native dry-fruiting tree species in the same areas. To assess whether these observation-suggested differences are statistically significant, two plots were sampled for interspecific associations between Rubus and Aristotelia and between Rubus and the most common dry-fruiting monoecious tree -Lomatia hirsuta (Proteaceae). The first important conclusion from this study is that invasive Rubus is substantially more common under both focal tree species than in open grasslands. Second, Rubus is associated more strongly with fleshy-fruiting Aristotelia than with dry-fruiting Lomatia in this landscape. Additionally, the frequency of Rubus is higher under Aristotelia fruiting (female or hermaphroditic) trees. Management implications are discussed.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.72 n.1 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000100004en10.4067/S0717-66432015000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
description	Seed dispersal facilitation among plant neighbours can be defined as an increase in the number, distances, and/or places reached by a plant’s seeds that is due to the presence of co-fruiting plant neighbours with which it shares seed dispersers. Many cases of this phenomenon have been described among native species and some also among introduced invasive species. Moreover, facilitation of native species recruitment by non-native fleshy-fruiting trees has been reported. Surprisingly, seed dispersal facilitation of exotic species by native species is either less common or has not been properly documented so far. Casual observation of secondary vegetation in La Araucanía Region, Chile, suggests that more individuals of exotic fleshy-fruiting bird-dispersed Rubus praecox (Rosaceae) are established under the native fleshy fruiting bird-dispersed subdioecious tree Aristotelia chilensis (Elaeocarpaceae) than under other native dry-fruiting tree species in the same areas. To assess whether these observation-suggested differences are statistically significant, two plots were sampled for interspecific associations between Rubus and Aristotelia and between Rubus and the most common dry-fruiting monoecious tree -Lomatia hirsuta (Proteaceae). The first important conclusion from this study is that invasive Rubus is substantially more common under both focal tree species than in open grasslands. Second, Rubus is associated more strongly with fleshy-fruiting Aristotelia than with dry-fruiting Lomatia in this landscape. Additionally, the frequency of Rubus is higher under Aristotelia fruiting (female or hermaphroditic) trees. Management implications are discussed.
author	REJMÁNEK,MARCEL
spellingShingle	REJMÁNEK,MARCEL Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
author_facet	REJMÁNEK,MARCEL
author_sort	REJMÁNEK,MARCEL
title	Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
title_short	Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
title_full	Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
title_fullStr	Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
title_full_unstemmed	Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation
title_sort	invasion of rubus praecox (rosaceae) is promoted by the native tree aristotelia chilensis (elaeocarpaceae) due to seed dispersal facilitation
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000100004
work_keys_str_mv	AT rejmanekmarcel invasionofrubuspraecoxrosaceaeispromotedbythenativetreearistoteliachilensiselaeocarpaceaeduetoseeddispersalfacilitation
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Invasion of Rubus praecox (Rosaceae) is promoted by the native tree Aristotelia chilensis (Elaeocarpaceae) due to seed dispersal facilitation

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