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| Schubart, C.D.; Santl, T.; Koller, P.. |
| Due to their long-term ecological stability, ancient lakes represent very interesting systems for studying differentiation and speciation processes. High degrees of endemism and specialisation are characteristic features of their fauna. The Malili lakes from the Indonesian island Sulawesi are considered an ancient limnic system, and recent research has increased the number of recognized species and the knowledge about ecological and morphological diversification within a variety of animal taxa. Here we show that the local endemic gecarcinucid freshwater crabs are more differentiated than qualitative morphological characters and the current taxonomy may indicate. The morphologically and ecologically well characterised species Nautilothelphusa zimmeri Balss,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Species flock; Adaptive radiation; Ecotypes; Morphotypes; Genetic barcoding; Cox1 mtDNA; 42.74. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/280475 |
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| Costa,Rosa Maria Rodrigues da; Fabré,Nidia Noemí; Amadio,Sidinéia Aparecida; Tuset,Víctor Manuel. |
| ABSTRACT Using morphometric measurements and wavelets functions, the asterisci otoliths of curimatã, Prochilodus nigricans were analysed to identify the variation in shape and growth increment of individuals from Solimões, Japurá and Negro rivers of the Amazon basin, Brazil. The morphometric and morphological analyses did not reveal evidences of population segregation among rivers, but variations were found in the estimation of otolith growth increment. Also, the otolith shape showed a high variability between individuals, identifying four morphotypes. Morphotype 1 shows a more oval shape with a posterior zone clearly rounded; Morphotype 2 shows the posterior zone rounded, but the anterior end is more elongated; Morphotype 3 shows a completely different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon Basin; Growth increments; Morphotypes; Otolith shape; Phenotypes. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400215 |
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| Menezes,Natalia; Neves,Elizabeth; Kikuchi,Ruy K.P.; Johnsson,Rodrigo. |
| Siderastrea is a small genus of scleractinian corals, composed by zooxanthellate massive colonial forms. Besides contributing to the consolidation of the reef structure, represent a group with significant resistance to environmental stress. Until the 70's, its taxonomy was a complicated task, limited by the difficulty in identifying morphotypes. More recently, interspecific boundaries were redefined for 'Atlantic Siderastrea Complex'. However, despite new perspectives, including the occurrence of S. radians and S. siderea for Brazil, morphological patterns are still poorly studied and inconspicuous for several coastal areas. In order to characterize levels of intraspecific and interspecific morphological variation in S. stellata and S. radians,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Systematics; Modular organism; Morphotypes; Zooxanthellate coral; South Atlantic. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014001600001 |
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| Filho,Luís Carlos Iuñes de Oliveira; Filho,Osmar Klauberg; Baretta,Dilmar; Tanaka,Cynthia Akemi Shinozaki; Sousa,José Paulo. |
| ABSTRACT: Collembolan species are differently affected by soil tillage (conventional, minimum tillage, and no-tillage) and are known to modify plant growth. This study relies on the relationships between Collembola community structures and land use systems as a proxy for characterizing changes in soil quality. Thus, Collembola community structure (eco-morphological groups - edaphic, hemiedaphic and epigeic, and morphotypes) were examined in a no-tillage system and crop-livestock integration system to evaluate the discriminative power of the Collembola community structure and to determine which soil properties drives structural diversity. Thirty-eight morphotypes of Collembola were recorded in this study, 11 belonging to the edaphic eco-morphological group,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil fauna; Morphotypes; No-tillage; Crop-livestock integration. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100429 |
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| Santos,Marcielli Aparecida Borges dos; Oliveira Filho,Luís Carlos Iuñes de; Pompeo,Pâmela Niederauer; Ortiz,Danielle Cristina; Mafra,Álvaro Luiz; Klauberg Filho,Osmar; Baretta,Dilmar. |
| ABSTRACT: Springtails (Collembola) are soil organisms with wide morphological diversity and are sensitive to alterations in the soil, regardless of whether they are human-caused or not. The aim of this study was to evaluate the influence of land use on the morphological diversity of springtails and verify their relationships with soil physical, chemical, and microbiological properties. Samples were collected in the eastern region of Santa Catarina, in three municipalities: Joinville, Blumenau, and Timbó. They included the following land use systems (LUSs): native forest (NF), Eucalyptus plantation (EP), pasture (PA), integrated crop-livestock (ICL), and no tillage (NT). Samples were collected to determine soil properties, and pitfall traps were set in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eco-morphological traits; Morphotypes; Bioindicators; Soil fauna. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100421 |
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| Pompeo,Pâmela Niederauer; Oliveira Filho,Luís Carlos Iuñes de; Santos,Marcielli Aparecida Borges dos; Mafra,Álvaro Luiz; Klauberg Filho,Osmar; Baretta,Dilmar. |
| ABSTRACT Coleopterans (Coleoptera) are major ecosystem service providers. However ecomorphological features that are comparable in a wide range of invertebrates within this group and in various environments must be found, to be able to study regions with different species, contributing to overcome difficulties of the taxonomic approach and understand the functioning of ecosystems. This research addressed the diversity of Coleoptera, using a methodology of ecomorphological traits, as well as their relation with the land use systems (LUS) and the soil properties. The following LUS were evaluated: no-tillage (NT), crop-livestock integration (CLI), pasture (PA), Eucalyptus stands (EST), and native forest (NF). Samples were collected using a 3 × 3 point grid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecomorphological traits; Edaphic biodiversity; Morphotypes; Soil biological quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100424 |
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