Spatial and temporal patterns of land flatworm assemblages in Brazilian Araucaria forests

Leal-Zanchet, Ana María; Baptista, Vanessa dos Anjos; Campos, Lucas M.; Raffo, Juliana Fraga

doi:10.1111/j.1744-7410.2010.00215.x

Cited by 23 publications

(22 citation statements)

References 20 publications

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“…franciscana and O. josefi, the first and third most dominant species in AMF, respectively, are among the five most abundant species in areas of Araucaria moist forest (Leal-Zanchet et al 2011). Their low dominance or abundance in AMF-P and P suggest that both may prefer preserved areas, which has already been indicated for P. franciscana (Carbayo et al 2002).…”

Section: Discussionmentioning

confidence: 88%

“…Land planarian communities are highly diverse in areas of Araucaria moist forest (Leal-Zanchet and Carbayo 2000; Baptista et al 2006;Fick et al 2006;Leal-Zanchet and Froehlich 2006;Antunes et al 2008;Leal-Zanchet and Baptista 2009;Leal-Zanchet et al 2011. They are important elements of forest communities and are considered to be top predators in their microhabitats, where they feed on other invertebrates, such as annelids, gastropods, insect larvae, other arthropods, and even other land planarians (Du Bois-Reymond Marcus 1951;Froehlich 1955;Ogren 1995;Jones and Cumming 1998;Winsor et al 1998;Sluys 1999;Carbayo and Leal-Zanchet 2003;Prasniski and Leal-Zanchet 2009).…”

Section: Introductionmentioning

confidence: 99%

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Effects of pine invasion on land planarian communities in an area covered by Araucaria moist forest

et al. 2014

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Background: Cultivation of exotic pine species has increased in areas of Araucaria moist forest, which is an ecosystem with high biological diversity. Land planarians are generally susceptible to replacement of natural habitat by exotic tree species plantations. However, how planarian communities respond to the invasion of exotic species in natural habitats is unknown: (1) Are there differences in richness and abundance of land planarians between sites of Araucaria moist forest with (AMF-P) and without (AMF) pine trees and between these areas and pine plantations (P)? (2) Does the species composition of land planarians vary among AMF, AMF-P, and P? Results: This study shows that mean richness and abundance of land planarians per sample unit are higher in AMF sites than AMF-P sites. In addition, AMF sites have a higher estimated richness per sample unit than pine plantations and AMF-P sites. In AMF-P sites, mean richness and abundance are higher in sample units not influenced by pine trees than in those with pine needles. An ordination analysis indicated that the communities of each site are distinct, especially the communities of the AMF and P sites.Conclusions: The present work demonstrated negative impacts from a recent invasion of an exotic species of pine on the richness and abundance of land planarians in a site of Araucaria moist forest and significant variation in the planarian community composition between sites of Araucaria moist forest and pine plantation.

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Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Effects of pine invasion on land planarian communities in an area covered by Araucaria moist forest

et al. 2014

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“…The species richness found in Ordesa and Picos may seem low if compared with similar studies performed in different Brazilian forests, where total flatworm species number ranges between 18 in areas of deciduous forests (De Castro & Leal‐zanchet, 2005) and 51 in areas of Araucaria forest (Leal‐Zanchet et al., 2011). Although these Brazilian species richness result from studies with different sampling effort with respect to our study, both in the number of sampling campaigns (between 14 and 15 in Brazil, two in the present study) and in the number of people involved in the samplings (five collectors in Brazil, two collectors in the present study), the species accumulation models showed both parks are close to a saturation point, indicating there is a realistic species richness difference between the areas involved (temperate Europe vs. neotropical Brazil).…”

Section: Discussionmentioning

confidence: 99%

“…The authors working on terrestrial flatworm’s ecology (see Baptista & Leal‐Zanchet, 2010; Baptista et al., 2006; Carbayo et al., 2002; De Castro & Leal‐zanchet, 2005; Fick et al., 2006; Leal‐Zanchet et al., 2011) used plots of fixed sizes (50 × 2 m, 2 × 2 m, 7 × 7 m) or transects of fixed length (30 to 50 m) as a sampling unit. On each plot or transect, the sampling methodology used was always direct searching by a fixed number of researchers (between one and five) during a standardized lapse of time (between 15 min and 1 hr).…”

Section: Methodsmentioning

confidence: 99%

Hidden diversity in forest soils: Characterization and comparison of terrestrial flatworm’s communities in two national parks in Spain

Álvarez‐Presas

Mateos

Riutort

2018

Ecology and Evolution

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Terrestrial flatworms (Platyhelminthes, Tricladida, and Geoplanidae) belong to what is known as cryptic soil fauna of humid forests and are animals not easily found or captured in traps. Nonetheless, they have been demonstrated to be good indicators of the conservation status of their habitat as well as a good model to reconstruct the recent and old events affecting biodiversity. This is mainly due to their delicate constitution, their dependence on the integrity of their habitat, and their very low dispersal capacity. At present, little is known about their communities, except for some studies performed in Brazil. In this work, we analyze for the first time in Europe terrestrial flatworm communities. We have selected two protected areas belonging to the Red Española de Parques Nacionales. Our aims include performing a first study of the species richness and community structure for European terrestrial planarian species at regional and local scale. We evaluate the effect of type of forests in the community composition and flatworms’ abundance, but also have into account the phylogenetic framework (never considered in previous studies) analyzed based on molecular data. We find differences in the species composition among parks, with an astonishingly high diversity of endemic species in the Parque Nacional de Picos de Europa and an extremely low diversity of species in the Parque Nacional de Ordesa y Monte Perdido. These divergent patterns cannot be attributed to differences in physical variables, and in addition, the analyses of their phylogenetic relationships and, for a few species, their genetic structure, point to a more probable historical explanation.

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“…Freshwater and land triclads were studied mainly in the Brazilian states of São Paulo and Rio Grande do Sul (Carbayo and Froehlich, 2008;Baptista et al 2010;Leal-Zanchet et al, 2011;Amaral et al, 2014). Polyclads were mainly known from the coast of the states of São Paulo and Rio de Janeiro, as well as the northeastern coast of Brazil (Carbayo and Froehlich, 2008;Bahia and Padula, 2009;Bahia et al, 2012;Bulnes and Torres, 2014).…”

Section: Introductionmentioning

confidence: 99%

Microturbellarians (Platyhelminthes and Acoelomorpha) in Brazil: invisible organisms?

2016

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Microturbellarians typically belong to the benthos and may occur in a wide variety of environments. They are abundant in freshwater and marine ecosystems and may occur in moist terrestrial habitats. However, turbellarians are seldom taken into account in studies of biodiversity. Most studies on Brazilian microturbellarians had taxonomical purposes and were done in the years 1940-1950. Thus, information on their occurrence and ecological aspects are dispersed throughout several papers. We intend here to summarize the biogeographical distribution and ecological aspects of microturbellarians recorded for Brazil, indicating the main gaps in their knowledge and possible actions to enhance studies on this group. There are 239 species of microturbellarians registered for Brazil, with records distributed in 12 states. However, just three states located in southern Brazil have records of 94% of microturbellarian species. Thus, knowledge on the systematics and geographical distribution of Brazilian microturbellarians clearly reflect the scientific activity over many years or decades in two states of southeastern and southern Brazil. Considering the scant information on this group in Brazil, which is also the situation of the Neotropical microturbellarians in general, some actions should be proposed. First, it would be necessary to sample in the diverse biomes, as well as in the various river and sea basins, based on standardized sampling protocols. Second, it would be necessary to encourage diverse research groups to include microturbellarians and/or turbellarians in general into biodiversity inventories and studies on community structure of invertebrates. Third, it is necessary to increase the number of research groups on microturbellarians, in order to augment the studies on their morphology, systematics, and ecology. Considering their abundance, species richness and ecological importance in aquatic environments, despite some peculiarities regarding their sampling, sorting and identification procedures, the challenge to study microturbellarians and enhance knowledge about them in Brazilian ecosystems should be faced.Keywords: Platyhelminthes, species diversity, Neotropical region, systematics, ecology. Microturbelários (Platyhelminthes e Acoelomorpha) no Brasil: organismos invisíveis? ResumoMicroturbelários são tipicamente bentônicos e podem ocorrer em uma ampla variedade de ambientes. São abundantes em ecossistemas marinhos e de água doce, podendo ocorrer em ambientes terrestres úmidos. Entretanto, turbelários raramente são considerados em estudos de diversidade. A maioria dos estudos sobre microturbelários brasileiros tiveram propósito taxonômico e foram realizados nos anos 1940-1950. Assim, informações sobre ocorrência e aspectos ecológicos estão dispersos em diversos artigos. O objetivo deste trabalho é sumarizar a distribuição biogeográfica e aspectos ecológicos dos microturbelários registrados para o Brasil, indicando as principais lacunas do conhecimento e possíveis ações para ampliar estudos sobre esse g...

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Spatial and temporal patterns of land flatworm assemblages in Brazilian Araucaria forests

Cited by 23 publications

References 20 publications

Effects of pine invasion on land planarian communities in an area covered by Araucaria moist forest

Effects of pine invasion on land planarian communities in an area covered by Araucaria moist forest

Hidden diversity in forest soils: Characterization and comparison of terrestrial flatworm’s communities in two national parks in Spain

Microturbellarians (Platyhelminthes and Acoelomorpha) in Brazil: invisible organisms?

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