Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina

We examined the abundance, the population structure and the dynamics of Lymnaea columella, an intermediate host of Fasciola hepatica, in the Ibera Macrosystem, Argentina, and their relationship with biotic and abiotic factors. A 6-month drought in the middle of the study provided an opportunity to a...

Descripción completa

Detalles Bibliográficos
Autores principales: Prepelitchi, Lucila, Pietrokovsky, Silvia Monica, Kleiman, Florencia, Rubel, Diana Nora, Wisnivesky Colli, María Cristina
Publicado: 2011
Materias:
Abundance
Argentina
Ecology
Ibera
Lymnaea columella
Biomphalaria
Fasciola hepatica
Gastropoda
Lymnaea
Lymnaeidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10215506_v50_n2_p164_Prepelitchi
http://hdl.handle.net/20.500.12110/paper_10215506_v50_n2_p164_Prepelitchi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10215506_v50_n2_p164_Prepelitchi
record_format dspace
spelling paper:paper_10215506_v50_n2_p164_Prepelitchi2023-06-08T15:59:59Z Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina Prepelitchi, Lucila Pietrokovsky, Silvia Monica Kleiman, Florencia Rubel, Diana Nora Wisnivesky Colli, María Cristina Abundance Argentina Ecology Ibera Lymnaea columella Biomphalaria Fasciola hepatica Gastropoda Lymnaea Lymnaea columella Lymnaeidae We examined the abundance, the population structure and the dynamics of Lymnaea columella, an intermediate host of Fasciola hepatica, in the Ibera Macrosystem, Argentina, and their relationship with biotic and abiotic factors. A 6-month drought in the middle of the study provided an opportunity to analyze population recovery. Seasonal surveys were performed over a 3-year study period (2002-2005) in bañados and malezales, 2 typical wetlands of the Macrosystem. Snails of different taxa were collected in each environment and survey. Lymnaea columella (n = 7851) was found throughout the study period except during the drought. In humid periods, abundance differed seasonally (p < 0.001), being highest in winter, intermediate in autumn-spring, and lowest in the hot, dry summer (> 58.5%, 1.6%- 34.6%, and < 1.7% of the total collected, respectively). Sexually immature individuals (< 6.5 mm) appeared in autumn and peaked in spring (> 60%); adults (> 6.5 mm) dominated in winter (> 60%), and among these, intermediate-sized snails (6.6-13.1 mm) were the only ones found in summer and immediately after the drought. Intermediate-sized snails, which are resistant to environmental stress and capable of producing viable offspring when conditions become favorable, may allow rapid population recovery, which begins in autumn. Continuous reproductive activity was observed between autumn and spring. The bañado showed the highest abundance (410.9 snails/30 min; 62.8% of the total collected; p < 0.001) and probably serves as the aestivation site and as a source of L. columella in the area. Biomphalaria spp. and L. columella showed opposite patterns of seasonal abundances, which may explain the low and high abundances of the latter in winter and summer, respectively. This is the 1st report of L. columella in these wetland types. The successful establishment of this invasive lymnaeid suggests a broad distribution throughout the region. Fil:Prepelitchi, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pietrokovsky, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kleiman, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rubel, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisnivesky-Colli, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10215506_v50_n2_p164_Prepelitchi http://hdl.handle.net/20.500.12110/paper_10215506_v50_n2_p164_Prepelitchi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Abundance
Argentina
Ecology
Ibera
Lymnaea columella
Biomphalaria
Fasciola hepatica
Gastropoda
Lymnaea
Lymnaea columella
Lymnaeidae
spellingShingle Abundance
Argentina
Ecology
Ibera
Lymnaea columella
Biomphalaria
Fasciola hepatica
Gastropoda
Lymnaea
Lymnaea columella
Lymnaeidae
Prepelitchi, Lucila
Pietrokovsky, Silvia Monica
Kleiman, Florencia
Rubel, Diana Nora
Wisnivesky Colli, María Cristina
Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
topic_facet Abundance
Argentina
Ecology
Ibera
Lymnaea columella
Biomphalaria
Fasciola hepatica
Gastropoda
Lymnaea
Lymnaea columella
Lymnaeidae
description We examined the abundance, the population structure and the dynamics of Lymnaea columella, an intermediate host of Fasciola hepatica, in the Ibera Macrosystem, Argentina, and their relationship with biotic and abiotic factors. A 6-month drought in the middle of the study provided an opportunity to analyze population recovery. Seasonal surveys were performed over a 3-year study period (2002-2005) in bañados and malezales, 2 typical wetlands of the Macrosystem. Snails of different taxa were collected in each environment and survey. Lymnaea columella (n = 7851) was found throughout the study period except during the drought. In humid periods, abundance differed seasonally (p < 0.001), being highest in winter, intermediate in autumn-spring, and lowest in the hot, dry summer (> 58.5%, 1.6%- 34.6%, and < 1.7% of the total collected, respectively). Sexually immature individuals (< 6.5 mm) appeared in autumn and peaked in spring (> 60%); adults (> 6.5 mm) dominated in winter (> 60%), and among these, intermediate-sized snails (6.6-13.1 mm) were the only ones found in summer and immediately after the drought. Intermediate-sized snails, which are resistant to environmental stress and capable of producing viable offspring when conditions become favorable, may allow rapid population recovery, which begins in autumn. Continuous reproductive activity was observed between autumn and spring. The bañado showed the highest abundance (410.9 snails/30 min; 62.8% of the total collected; p < 0.001) and probably serves as the aestivation site and as a source of L. columella in the area. Biomphalaria spp. and L. columella showed opposite patterns of seasonal abundances, which may explain the low and high abundances of the latter in winter and summer, respectively. This is the 1st report of L. columella in these wetland types. The successful establishment of this invasive lymnaeid suggests a broad distribution throughout the region.
author Prepelitchi, Lucila
Pietrokovsky, Silvia Monica
Kleiman, Florencia
Rubel, Diana Nora
Wisnivesky Colli, María Cristina
author_facet Prepelitchi, Lucila
Pietrokovsky, Silvia Monica
Kleiman, Florencia
Rubel, Diana Nora
Wisnivesky Colli, María Cristina
author_sort Prepelitchi, Lucila
title Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
title_short Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
title_full Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
title_fullStr Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
title_full_unstemmed Population structure and dynamics of Lymnaea columella (say, 1817) (Gastropoda: Lymnaeidae) in wetlands of northeastern Argentina
title_sort population structure and dynamics of lymnaea columella (say, 1817) (gastropoda: lymnaeidae) in wetlands of northeastern argentina
publishDate 2011
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10215506_v50_n2_p164_Prepelitchi
http://hdl.handle.net/20.500.12110/paper_10215506_v50_n2_p164_Prepelitchi
work_keys_str_mv AT prepelitchilucila populationstructureanddynamicsoflymnaeacolumellasay1817gastropodalymnaeidaeinwetlandsofnortheasternargentina
AT pietrokovskysilviamonica populationstructureanddynamicsoflymnaeacolumellasay1817gastropodalymnaeidaeinwetlandsofnortheasternargentina
AT kleimanflorencia populationstructureanddynamicsoflymnaeacolumellasay1817gastropodalymnaeidaeinwetlandsofnortheasternargentina
AT rubeldiananora populationstructureanddynamicsoflymnaeacolumellasay1817gastropodalymnaeidaeinwetlandsofnortheasternargentina
AT wisniveskycollimariacristina populationstructureanddynamicsoflymnaeacolumellasay1817gastropodalymnaeidaeinwetlandsofnortheasternargentina
_version_ 1768545199865200640

Ejemplares similares