Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation

Macrophytes play an important role as resource for herbivores. When they are introduced into streams by, rehabilitation projects herbivores might be attracted to this new food source. Thus, it is important to know the palatability of macrophytes, especially when high densities of herbivores with a h...

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Detalles Bibliográficos
Autores principales:	Paz, Laura Estefanía, Ferreira, Ana Clara, Simonetti, Máximo Andrés, Rodrigues Capítulo, Alberto
Formato:	Articulo Preprint
Lenguaje:	Inglés
Publicado:	2019
Materias:	Botánica Biología Aquatic plant Pomacea canaliculata Preference RCR Transplantation
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/104715 http://hdl.handle.net/11336/95039
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-104715
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Botánica Biología Aquatic plant Pomacea canaliculata Preference RCR Transplantation
spellingShingle	Botánica Biología Aquatic plant Pomacea canaliculata Preference RCR Transplantation Paz, Laura Estefanía Ferreira, Ana Clara Simonetti, Máximo Andrés Rodrigues Capítulo, Alberto Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
topic_facet	Botánica Biología Aquatic plant Pomacea canaliculata Preference RCR Transplantation
description	Macrophytes play an important role as resource for herbivores. When they are introduced into streams by, rehabilitation projects herbivores might be attracted to this new food source. Thus, it is important to know the palatability of macrophytes, especially when high densities of herbivores with a high relative consumption rate (RCR) are present. Plant traits influencing herbivory could be an indicator for macrophyte selection in rehabilitation projects. In the laboratory, we assessed the RCR and preference of Pomacea canaliculata for Ludwigia peploides, Gymnocoronis spilanthoides, and Egeria densa, and linked it to plant chemical and structural traits. We also analysed the use of these macrophytes by the snail in plants transplanted into a recently dredged stream. The macrophyte beds transplanted were the only plants present in the stream. Plants and snails were sampled and snail egg masses quantified. In the laboratory, the RCR of E. densa was significantly lower than that of the other species, and the snails did not show any preference among macrophytes. The only trait related to palatability was dry matter content. The abundance of snails in transplanted beds was higher in E. densa and G. spilanthoides, and lower on L. peploides despite its highest coverage. The abundance of egg masses was the highest on G. spilanthoides. This indicates that Pomacea canaliculata exhibited active selection and differential use of transplanted macrophytes. In conclusion, L. peploides would be less affected by a generalist invertebrate herbivore and a suitable option to transplant into stream channels for rehabilitation projects.
format	Articulo Preprint
author	Paz, Laura Estefanía Ferreira, Ana Clara Simonetti, Máximo Andrés Rodrigues Capítulo, Alberto
author_facet	Paz, Laura Estefanía Ferreira, Ana Clara Simonetti, Máximo Andrés Rodrigues Capítulo, Alberto
author_sort	Paz, Laura Estefanía
title	Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
title_short	Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
title_full	Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
title_fullStr	Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
title_full_unstemmed	Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
title_sort	selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation
publishDate	2019
url	http://sedici.unlp.edu.ar/handle/10915/104715 http://hdl.handle.net/11336/95039
work_keys_str_mv	AT pazlauraestefania selectionofmacrophytesbyageneralistinvertebrateherbivoreandpotentialimpactsforstreamrehabilitation AT ferreiraanaclara selectionofmacrophytesbyageneralistinvertebrateherbivoreandpotentialimpactsforstreamrehabilitation AT simonettimaximoandres selectionofmacrophytesbyageneralistinvertebrateherbivoreandpotentialimpactsforstreamrehabilitation AT rodriguescapituloalberto selectionofmacrophytesbyageneralistinvertebrateherbivoreandpotentialimpactsforstreamrehabilitation
bdutipo_str	Repositorios
_version_	1764820442219020289

Selection of macrophytes by a generalist invertebrate herbivore and potential impacts for stream rehabilitation

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