Consulta: creatorFacets:"Maneyro,Raúl"
Registros recuperados: 7
Data/hora: 03/06/2024 10:08:28

Anfibios amenazados de Uruguay: efectividad de las áreas protegidas ante el cambio climático
Provedor de dados: 67
Autores: Toranza,Carolina; Brazeiro,Alejandro; Maneyro,Raúl.
El cambio climático (CC) es una de las principales amenazas a la biodiversidad. Se han constatado efectos del CC sobre la distribución de las especies, principalmente corrimientos hacia latitudes altas y zonas elevadas. Las especies amenazadas resultan especialmente vulnerables a dichos cambios. En este marco, las áreas protegidas (AP) podrían ser una herramienta clave para la adaptación al cambio climático. Nuestros objetivos son: estudiar los efectos del CC sobre la distribución y riqueza de anfibios amenazados y casi amenazados de Uruguay, y evaluar la eficacia del Sistema Nacional de Áreas Protegidas (SNAP) en el presente y ante escenarios de CC. Para modelar la distribución de nueve especies se obtuvieron registros de colecciones herpetológicas,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anuros; Conservación; Llistas rojas; Modelación de nicho.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2016000200004

First record of Chaunus achavali (Anura, Bufonidae) from Rio Grande do Sul, Brazil, with a key for the identification of the species in the Chaunus marinus group
Provedor de dados: 76
Autores: Kwet,Axel; Di-Bernardo,Marcos; Maneyro,Raúl.
The bufonid toad Chaunus achavali, a recently described species known only from Uruguay, is recorded for Brazil. This species is morphologically similar to C. ictericus and C. arenarum, and several individuals were labeled in Brazilian scientific collections under these taxa. A lectotype of C. arenarum is designated. Additional field notes on C. achavali and a key for the identification of the species in the Chaunus marinus group are presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chaunus marinus species group; Chaunus achavali; New record; Southern Brazil.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400013

Diet of the South American frog Leptodactylus ocellatus (Anura, Leptodactylidae) in Uruguay
Provedor de dados: 76
Autores: Maneyro,Raúl; Naya,Daniel E.; Rosa,Inés da; Canavero,Andrés; Camargo,Arley.
The diet of Leptodactylus ocellatus (L., 1758) was studied in specimens collected at Maldonado Department (Uruguay), where monthly surveys were made between August 1998 and March 2000. A total of 143 frogs were collected, measured, sexed, and dissected, to assess stomach contents. The anurans were grouped into three age classes and four categories (considering sex and capture date). The trophic amplitude for each age class and sex-season category was quantified using Shannon-Weaver Index, and the trophic niche overlap between ages and categories by using the Pianka Index. Comparisons among treatments were made by G-tests. The most important prey items were coleopterans (IRI = 2547), and significant correlations were found between predator and prey sizes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trophic niche; Amphibia; Leptodactylus ocellatus; Uruguay.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100010

A new species of Melanophryniscus (Anura, Bufonidae) from Uruguay
Provedor de dados: 76
Autores: Maneyro,Raúl; Naya,Daniel E.; Baldo,Diego.
A new species of bufonid toad of the genus Melanophryniscus from northern Uruguay is described. It is included in the M. moreirae group and its external morphology is similar to Melanophryniscus sanmartini. Melanophryniscus sp. nov. is distinguished by having a light brown dorsal coloration with six darker longitudinal glandular ridges on the dorsal surface of the body and the gular region uniformly black.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anura; Melanophryniscus; Uruguay.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000200003

Conservation status assessment of the amphibians and reptiles of Uruguay
Provedor de dados: 76
Autores: Canavero,Andrés; Carreira,Santiago; Langone,José A.; Achaval,Federico; Borteiro,Claudio; Camargo,Arley; da Rosa,Inés; Estrades,Andrés; Fallabrino,Alejandro; Kolenc,Francisco; López-Mendilaharsu,M. Milagros; Maneyro,Raúl; Meneghel,Melitta; Nuñez,Diego; Prigioni,Carlos M.; Ziegler,Lucía.
The native species of amphibians and reptiles of Uruguay were categorized according to the IUCN Red List criteria. Out of 47 amphibian species, seven are listed as Critically Endangered (CR), five as Endangered (EN), one as Vulnerable (VU), three as Near Threatened (NT), and two as Data Deficient (DD); the remaining species are considered to be Least Concern (LC). Among the 64 species of reptiles evaluated, one is listed as Critically Endangered (CR), seven as Endangered (EN), two as Vulnerable (VU), one as Near Threatened (NT) and seven as Data Deficient (DD); the rest are considered to be Least Concern (LC). The use of these results as an additional criterion in the definition of protected areas in Uruguay will contribute towards the conservation of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thretened species; Red List; Herpetofauna; IUCN.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000100001

Advertisement call and female sexual cycle in Uruguayan populations of Physalaemus henselii (Anura, Leiuperidae)
Provedor de dados: 76
Autores: Maneyro,Raúl; Núñez,Diego; Borteiro,Claudio; Tedros,Marcelo; Kolenc,Francisco.
Physalaemus henselii (Peters, 1872) is a little known leiuperid frog that has not been studied since the 1960’s. Herein, we redescribe its advertisement call, and assess the female sexual cycle and the reproductive period on the basis of the macroscopic analysis of the ovaries and field observations. The Ovarian Size Factor (OSF) was calculated. The study was made in Departamento de Rivera, northern Uruguay. The advertisement call consists of short (177 ± 21ms), multipulsed (20 ± 3 pulses/note) notes, with a note repetition rate of 1.57 ± 0.13 notes/s. Physalaemus henselii has a female sexual cycle with unimodal distribution of gravid females, which are present from February to September. The OSF and the ratio "females with mature oocytes / females without...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Anura; Physalaemus; Advertisement call; Sexual cycle.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000200007

Spatial and temporal distribution of Pseudis minuta (Anura, Hylidae, Hylinae) and environmental variables related to its reproductive activity in Reserva Biológica do Lami, southern Brazil
Provedor de dados: 76
Autores: Zank,Caroline; Di-Bernardo,Marcos; Maneyro,Raúl; Colombo,Patrick; Fusinatto,Luciana A.; Fonte,Luis Fernando M. da.
We studied the reproductive biology of a population of Pseudis minuta Günther, 1858 from Reserva Biológica do Lami (30º 15' S; 51º 05' W), Porto Alegre, southern Brazil. We assessed the spatial and temporal distribution of individuals (males, females, juveniles) and explored potential relationships with environmental variables. Field activities encompassed bimonthly surveys in three semi-permanent ponds, each one during approximately two days and two nights, from August 2004 to July 2005. We recorded differences in the sites used by males, females and juveniles, with males occupying deeper and more distant places from the border. The temporal distributions of individuals, calling sites and amplectant pairs indicated that the reproductive activity of P....
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Spatial-temporal distribution; Reproductive activity; Environmental variables; Pseudis minuta.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000200010