01740nas a2200157 4500008004100000245009400041210006900135300001000204490000800214520122400222100002601446700002101472700001901493700001801512856005201530 2010 eng d00aSpatial and temporal patterns of land flatworm assemblages in Brazilian Araucaria forests0 aSpatial and temporal patterns of land flatworm assemblages in Br a25-330 v1303 a

Araucaria forests are among the most threatened biomes of one of the world’s 25 biodiversity hotspots, the south Brazilian Atlantic Rain Forest. This study was focused on flatworm community structure in three protected areas located on the eastern border of the Araucaria Plateau in south Brazil. We addressed three main questions: (1) How species-rich are Araucaria forests? (2) Are there any differences in the community structure within the three areas? (3) What is the distribution pattern of land flatworms in this type of forest? A total of 51 flatworm species in ten genera and two subfamilies were found. Non-metric multidimensional scaling analysis showed that the assemblage structure differed within the three areas. The abundance and richness varied in time, being affected by an interaction between season and areas. Araucaria forests on the eastern border of the Araucaria Plateau should be considered a hotspot of land planarian diversity, harboring an estimated 64 species. The high combined species richness in the protected areas studied emphasizes the importance of their preservation. Notwithstanding their close proximity, they are not redundant in maintaining regional biodiversity.

1 aLeal-Zanchet, Ana, M.1 aBaptista, V., A.1 aCampos, L., M.1 aRaffo, J., F. uhttps://continenticola.myspecies.info/node/123702550nas a2200145 4500008004100000245013600041210007100177300001200248490000700260520199100267100002102258700002502279700002602304856007402330 2010 eng d00aInventário de planárias terrestres (Platyhelminthes, Tricladida) em remanescente de Floresta Estacional Decidual do Sul do Brasil0 aInventário de planárias terrestres Platyhelminthes Tricladida em a247-2520 v103 a

Land triclads are top-predators in their microhabitats, feeding on other soil invertebrates. The species richness of triclads may indicate the diversity of other faunal groups. The community composition of land flatworms of areas of Deciduous Forest, which occupies a quarter of the vegetal cover of the state, is poorly known. The present study inventoried land planarians of the largest remnant of this type of forest in the State of Rio Grande do Sul, the Turvo State Park (SP-Turvo) and compared their communities with those of other localities of the state with inventories of land flatworms. We inventoried 26 species, two of them belonging to the subfamilies Rhynchodeminae and Bipaliinae, and 24 to the subfamily Geoplaninae. Besides the genera Rhynchodemus Leidy 1851 and Bipalium Stimpson, 1857, the following Geoplaninae genera were recorded: Geoplana Stimpson 1857, Choeradoplana Graff 1896, Pasipha Ogren & Kawakatsu 1990 and Notogynaphallia Ogren & Kawakatsu 1990, as well as the collective group Pseudogeoplana Ogren & Kawakatsu, 1990. The highest species richness was registered for the genus Geoplana (10), followed by the genus Pasipha (4). Geoplana rubidolineata Baptista & Leal-Zanchet, 2005 was previously only known from its type-locality, located in the northeast of the state. Bipaliumke wense Moseley, 1878 which shows a cosmopolitan distribution was observed in a man-disturbed area, not being registered in forest areas. We employed an NMDS ordination to compare land planarian communities of the Turvo State Park to those of other types of forest of the state. The analysis indicated that land planarian communities of the Turvo State Park and those of other areas with Deciduous, Semideciduous and Dense Ombrophilous Forests differ from those of Mixed Ombrophilous Forests of the region. The high observed species richness in the Turvo State Park reinforces its important contribution for the conservation of the regional diversity.

1 aBaptista, V., A.1 aOliveira, Simone, M.1 aLeal-Zanchet, Ana, M. uhttp://www.biotaneotropica.org.br/v10n2/en/fullpaper?bn02110022010+pt02248nas a2200133 4500008004100000245009100041210006900132300001000201490000800211520173700219100002101956700002601977856011102003 2010 eng d00aLand flatworm community structure in a subtropical deciduous forest in Southern Brazil0 aLand flatworm community structure in a subtropical deciduous for a83-900 v1403 a

Due to their biological characteristics and habitat requirements, land planarians have been proposed as indicator taxa in biodiversity and conservation studies. Herein, we investigated spatial patterns of land flatworm communities in the three main existent vegetation types of the most significant remnant of the subtropical deciduous forest in south Brazil. The main questions were: (1) How species-rich is the study area? (2) How are community-structure attributes allocated in areas with distinct floristic composition? (3) What are the effects of soil humidity and soil organic matter content on flatworm abundance? (4) Are there seasonal differences regarding species richness? (5) Are the communities in the three types of vegetation distinct? Twenty-two flatworm species, distributed in five genera and two subfamilies, were recorded. Results indicated that: (1) species richness, evenness, abundance, and dominance in the three vegetation types are not significantly different; (2) diversity indices were higher for areas with caducifolious forest than for areas with jaboticaba trees with marginally significant differences; (3) flatworm abundance is negatively related to soil organic matter; (4) there are no significant differences in flatworm species richness throughout the year; and (5) flatworm communities in the three types of vegetation are not distinct. Soil organic matter content was abundant at sites with distinct vegetation types, thereby negatively affecting flatworm abundance. The original vegetation of the study area has been well-preserved, which may be an explanation for the absence of a clear separation of the flatworm communities of the three main types of vegetation in the study area.

1 aBaptista, V., A.1 aLeal-Zanchet, Ana, M. uhttp://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/pdf/BJZ_140_su/BJZ_Baptista.pdf