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| Bujes,Clóvis Souza. |
| Nesting activity of the neotropical turtle Phrynops hilarii Duméril & Bibron, 1835 was studied from Feb/94 through Jan/95, with weekly visits at the Lami Biological Reserve (30º15'S, 51º05'W), Porto Alegre, Rio Grande do Sul, Brazil. Nesting behavior was observed 17 times on three different nest sites. Phrynops hilarii laid in average 11 eggs per clutch (10-14; sd±1; n=17), nests' depth ranged from 100 to 150 mm (x=121.53 mm.sd±12.31; n=17). The species presents stereotiped behaviour common to other Testudines. Temperature inside the nest, just after nesting, ranged between 20-31ºC (x=26.29ºC; sd±2.89; n=17); nest predation during this period was 82.35% (14 of 17 nests). From Aug/29 through Oct/03/95, 220 egg shells was collected next to 21 nests... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Testudines; Chelidae; Phrynops hilarii; Egg predation; Neotropical turtle; Nesting behavior. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400010 |
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| Cabrera,Mario R.; Colantonio,Sonia E.. |
| The plastral spotting variation in the chelid turtle Phrynops hilarii (Duméril & Bibron, 1835) in relation to sex, size, and geographic procedence of individuals was analyzed. States for qualitative characters were analyzed using non-parametric tests. Quantitative characters (shell and scute measurements) were standardized for body size by linear regression against carapace length, and were subjected to principal components analysis and canonical discriminant function analysis. Results suggest that increased plastral spotting is a polymorphic ontogenetic trait in P. hilarii. Neither hatchlings nor juveniles have plastral pattern moderately or heavily pigmented. The simplest pattern, however, may persist without changes in some adults. There are no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Chelidae; Phrynops; Pattern variation; South America. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200017 |
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| Brito,Elizângela Silva de; Strussmann,Christine; Penha,Jerry Magno Ferreira. |
| Studies on population structure of freshwater turtles belonging to the family Chelidae are scarce in Brazil. Herein we describe the structure of a population of the chelid Mesoclemmys vanderhaegei in a Cerrado area in the municipality of Chapada dos Guimarães, Mato Grosso, Brazil. A total of 80 individuals were captured in five collecting sites, from January to March 2007: 42 adult females, 27 adult males, and 11 juveniles with undetermined sex. Among 80 individuals, 24% were recaptured, at least once. This is the first attempt to estimate the size of a population of Mesoclemmys vanderhaegei. Our results suggest that additional sampling efforts are needed for more accurate estimates of population structure. Nevertheless, they surely provide minimum values... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Chelidae; Neotropics; Sex ratio; Population size; Freshwater turtles. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400024 |
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| Bona,Paula; Heredia,Susana; De La Fuente,Marcelo. |
| La Formación Roca integra la sucesión estratigráfica de sedimentitas marinas y continentales del Grupo Malargüe, depositadas durante el intervalo Campaniano tardío-Daniano en la Cuenca Neuquina, centro-oeste de Argentina. Los vertebrados fósiles recuperados en diferentes localidades donde esta unidad litoestratigráfica aflora corresponden a taxones marinos. El material de tortugas estudiado en este trabajo proviene de la sección inferior de la Formación Roca (Maastrichtiano?-Daniano), del sector NE del Lago Pellegrini (38º 40' 06''S, 67º 52' 02'' O), provincia de Río Negro. Se reconocen fragmentos de caparazón dorsal y plastrón de tortugas continentales Pleurodira Chelidae, algunos indeterminados, y otros asignados a Yaminuechelys cf. maior (Staesche,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pleurodira; Chelidae; Formación Roca; Vertebrados continentales. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142009000200004 |
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| Cisneros-Heredia,Diego F.. |
| Ten species of Testudines, from four different families: Chelidae, Kinosternidae, Podocnemididae, and Testudinidae, are reported from the Tiputini Biodiversity Station (Universidad San Francisco de Quito), northeastern Amazonian Ecuador; including the second report from Ecuador of Batrachemys heliostemma. These ten species are sympatric but not completely syntopic, thus I comment on their diversity and habitat preferences patterns. The general distribution of some turtles from Amazonian Ecuador is discussed, providing additional records and distribution maps for Chelus fimbriatus, Platemys platycephala, Batrachemys heliostemma, Batrachemys raniceps, Mesoclemmys gibba, Phrynops geoffroanus, Kinosternon scorpioides, and Geochelone denticulata. The presence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Testudines; Chelidae; Kinosternidae; Podocnemididae; Testudinidae; Chelus fimbriatus; Platemys platycephala; Batrachemys heliostemma; Batrachemys raniceps; Mesoclemmys gibba; Phrynops geoffroanus; Kinosternon scorpioides; Geochelone denticulata; Podocnemis expansa; Podocnemis unifilis; Peltocephalus dumerilianus; Diversity; Habitat preferences; Distribution; Checklist; Amazonia; Ecuador. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100011 |
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