Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?

The environmental constraints determining the distribution of the harvestman Discocyrtus prospicuus in Argentina and Uruguay are addressed. Habitat observations across the entire range (Río de la Plata-Atlantic coast area; Córdoba sierras; northwestern Argentina) are provided. Previous published loc...

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Detalles Bibliográficos
Autores principales: Acosta, Luis E., Guerrero, Elián Leandro
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Naturales
Neotropical Region
disjunction
Hábitat
ecological niche modeling
bioclimatic variables
MAXENT
BIOCLIM
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/159127
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-159127
record_format dspace
spelling I19-R120-10915-1591272023-10-19T20:04:09Z http://sedici.unlp.edu.ar/handle/10915/159127 Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern? Acosta, Luis E. Guerrero, Elián Leandro 2011 2023-10-19T18:35:49Z en Ciencias Naturales Neotropical Region disjunction Hábitat ecological niche modeling bioclimatic variables MAXENT BIOCLIM The environmental constraints determining the distribution of the harvestman Discocyrtus prospicuus in Argentina and Uruguay are addressed. Habitat observations across the entire range (Río de la Plata-Atlantic coast area; Córdoba sierras; northwestern Argentina) are provided. Previous published localities (verified for accuracy), new records and bioclimatic predictors were used to characterize the species bioclimatic profile and to build predictive distributional models with BIOCLIM and MAXENT algorithms. Relative importance of each bioclimatic variable in the final models is assessed. It was determined that D. prospicuus is primarily a gallery forest dweller, with preferred climate temperate to temperate-cold; variables related to thermic uniformity rank among the most influential. Results consistently support the alleged yungas- Mesopotamian disjunction; but the link between the Río de la Plata and Córdoba sierras areas shows disagreement between methods (predicted continuous with BIOCLIM, separate with MAXENT). It is suggested that the need for constant air humidity (favored in the core area by its proximity to large rivers and the seacoast) and competitive exclusion with congener D. testudineus may represent additional limiting factors. Some observations on the species tolerance to human activity are also given. Universidad Nacional de Córdoba Facultad de Ciencias Agrarias y Forestales Articulo Articulo http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) application/pdf 1-24
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Neotropical Region
disjunction
Hábitat
ecological niche modeling
bioclimatic variables
MAXENT
BIOCLIM
spellingShingle Ciencias Naturales
Neotropical Region
disjunction
Hábitat
ecological niche modeling
bioclimatic variables
MAXENT
BIOCLIM
Acosta, Luis E.
Guerrero, Elián Leandro
Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
topic_facet Ciencias Naturales
Neotropical Region
disjunction
Hábitat
ecological niche modeling
bioclimatic variables
MAXENT
BIOCLIM
description The environmental constraints determining the distribution of the harvestman Discocyrtus prospicuus in Argentina and Uruguay are addressed. Habitat observations across the entire range (Río de la Plata-Atlantic coast area; Córdoba sierras; northwestern Argentina) are provided. Previous published localities (verified for accuracy), new records and bioclimatic predictors were used to characterize the species bioclimatic profile and to build predictive distributional models with BIOCLIM and MAXENT algorithms. Relative importance of each bioclimatic variable in the final models is assessed. It was determined that D. prospicuus is primarily a gallery forest dweller, with preferred climate temperate to temperate-cold; variables related to thermic uniformity rank among the most influential. Results consistently support the alleged yungas- Mesopotamian disjunction; but the link between the Río de la Plata and Córdoba sierras areas shows disagreement between methods (predicted continuous with BIOCLIM, separate with MAXENT). It is suggested that the need for constant air humidity (favored in the core area by its proximity to large rivers and the seacoast) and competitive exclusion with congener D. testudineus may represent additional limiting factors. Some observations on the species tolerance to human activity are also given.
format Articulo
Articulo
author Acosta, Luis E.
Guerrero, Elián Leandro
author_facet Acosta, Luis E.
Guerrero, Elián Leandro
author_sort Acosta, Luis E.
title Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
title_short Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
title_full Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
title_fullStr Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
title_full_unstemmed Geographical distribution of Discocyrtus prospicuus (Arachnida: Opiliones: Gonyleptidae): Is there a pattern?
title_sort geographical distribution of discocyrtus prospicuus (arachnida: opiliones: gonyleptidae): is there a pattern?
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/159127
work_keys_str_mv AT acostaluise geographicaldistributionofdiscocyrtusprospicuusarachnidaopilionesgonyleptidaeisthereapattern
AT guerreroelianleandro geographicaldistributionofdiscocyrtusprospicuusarachnidaopilionesgonyleptidaeisthereapattern
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