Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil
The Araneidae is a speciose family including web-spinning spiders that are very abundant in various terrestrial ecosystems. Several studies demonstrate that changes in vegetation surrounding rivers, streams and brooks affect the associated araneofauna. The aim of this research was to compare differe...
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| Format: | Article |
| Language: | English |
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Fundação Zoobotânica do Rio Grande do Sul
2015-03-01
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| Series: | Iheringia: Série Zoologia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100053&lng=en&tlng=en |
| _version_ | 1828462626519121920 |
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| author | Everton N. L. Rodrigues Milton de S. Mendonça Jr. Patrícia E. S. Rodrigues Ricardo Ott |
| author_facet | Everton N. L. Rodrigues Milton de S. Mendonça Jr. Patrícia E. S. Rodrigues Ricardo Ott |
| author_sort | Everton N. L. Rodrigues |
| collection | DOAJ |
| description | The Araneidae is a speciose family including web-spinning spiders that are very abundant in various terrestrial ecosystems. Several studies demonstrate that changes in vegetation surrounding rivers, streams and brooks affect the associated araneofauna. The aim of this research was to compare differences found in diversity (abundance and richness), composition and phenology of Araneidae spiders sampled in different habitats in four riparian forest catchments in southern Brazil. Samples were taken from riparian forests in four rivers of Rio Grande do Sul State: Piratini, Camaquã, Sinos and Maquiné rivers, each in a different hydrographic basin. Samples were taken twice seasonally on each basin during two years, sampling the araneofauna of the tree-shrub strata with beating tray. Six transects were employed on each basin, two per habitat: edge with grassland, forest interior and river edge. Araneids totalled 20 genera and 65 species. Comparing riparian forests significant differences are found. Spider abundance differed among riparian forests as well as species richness. Overall, Piratini river riparian forest had the higher abundance and richness for Araneidae; the lower values were in Sinos river forest. The stronger degradation and fragmentation of the riparian forests of Sinos river probably influenced the results, with human disturbance gradients associated negatively to web building. We present data on the diversity of these spiders, which were very abundant in the riparian forest interior and very rich in species in the grassland/riparian forest edge. Species composition also differs among the studied habitats (the above plus river/riparian forest edge). For the most abundant species the phenological pattern across the seasons was also analysed. |
| first_indexed | 2024-12-11T02:39:04Z |
| format | Article |
| id | doaj.art-51d4a00a881a4894a11c65232d693457 |
| institution | Directory Open Access Journal |
| issn | 1678-4766 |
| language | English |
| last_indexed | 2024-12-11T02:39:04Z |
| publishDate | 2015-03-01 |
| publisher | Fundação Zoobotânica do Rio Grande do Sul |
| record_format | Article |
| series | Iheringia: Série Zoologia |
| spelling | doaj.art-51d4a00a881a4894a11c65232d6934572022-12-22T01:23:38ZengFundação Zoobotânica do Rio Grande do SulIheringia: Série Zoologia1678-47662015-03-011051536110.1590/1678-4766201510515361S0073-47212015000100053Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern BrazilEverton N. L. RodriguesMilton de S. Mendonça Jr.Patrícia E. S. RodriguesRicardo OttThe Araneidae is a speciose family including web-spinning spiders that are very abundant in various terrestrial ecosystems. Several studies demonstrate that changes in vegetation surrounding rivers, streams and brooks affect the associated araneofauna. The aim of this research was to compare differences found in diversity (abundance and richness), composition and phenology of Araneidae spiders sampled in different habitats in four riparian forest catchments in southern Brazil. Samples were taken from riparian forests in four rivers of Rio Grande do Sul State: Piratini, Camaquã, Sinos and Maquiné rivers, each in a different hydrographic basin. Samples were taken twice seasonally on each basin during two years, sampling the araneofauna of the tree-shrub strata with beating tray. Six transects were employed on each basin, two per habitat: edge with grassland, forest interior and river edge. Araneids totalled 20 genera and 65 species. Comparing riparian forests significant differences are found. Spider abundance differed among riparian forests as well as species richness. Overall, Piratini river riparian forest had the higher abundance and richness for Araneidae; the lower values were in Sinos river forest. The stronger degradation and fragmentation of the riparian forests of Sinos river probably influenced the results, with human disturbance gradients associated negatively to web building. We present data on the diversity of these spiders, which were very abundant in the riparian forest interior and very rich in species in the grassland/riparian forest edge. Species composition also differs among the studied habitats (the above plus river/riparian forest edge). For the most abundant species the phenological pattern across the seasons was also analysed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100053&lng=en&tlng=enAranhashabitatsRio Grande do Sulabundânciariqueza |
| spellingShingle | Everton N. L. Rodrigues Milton de S. Mendonça Jr. Patrícia E. S. Rodrigues Ricardo Ott Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil Iheringia: Série Zoologia Aranhas habitats Rio Grande do Sul abundância riqueza |
| title | Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil |
| title_full | Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil |
| title_fullStr | Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil |
| title_full_unstemmed | Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil |
| title_short | Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil |
| title_sort | diversity composition and phenology of araneid orb weavers araneae araneidae associated with riparian forests in southern brazil |
| topic | Aranhas habitats Rio Grande do Sul abundância riqueza |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100053&lng=en&tlng=en |
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