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Ana Maria Paulino Telles de Carvalho-e-Silva

Bio: Ana Maria Paulino Telles de Carvalho-e-Silva is an academic researcher from Universidade Federal do Estado do Rio de Janeiro. The author has contributed to research in topics: Chondrocranium & Hylidae. The author has an hindex of 10, co-authored 25 publications receiving 243 citations.

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Journal ArticleDOI
TL;DR: O objetivo do presente estudo foi verificar a sobreposicao alimentar dessas duas especies no Parque Nacional da Serra dos Orgaos, regiao sudeste do Brasil.
Abstract: A clear understanding of the relationships between overlapping, similarity, and competition is necessary to understand many of the questions about the structure and operation of a community. Rhinella icterica (Spix, 1824) and Rhinella crucifer (Wied Neuwied, 1821) are sympatric species of toads occurring in the National Park of Serra dos Orgaos in southeastern Brazil. The aim of the present study was to assess the dietary overlap of these two species. Ninety-four stomachs were analyzed, and 2245 prey items were found. Common prey were Hymenoptera, Coleoptera, Diptera, Lepidoptera larvae, Blattaria, Orthoptera, Hemiptera, Opiliones, and Aranaea. Ants were the most important prey in both diets, followed by beetles and cockroaches. The niche breadth of R. icterica was 1.76 and of R. crucifer was 1.28. The dietary overlap between the species was 98.62%. A positive correlation was observed between jaw width and prey size consumed by R. icterica.

45 citations

Journal ArticleDOI
27 Jun 2013-Zootaxa
TL;DR: Two new species of Proceratophrys allied to the P. appendiculata species complex are described by the presence of single and long palpebral appendages and a triangular rostral appendage, reinforcing the idea that the species groups presently admitted to the genus are not monophyletic.
Abstract: We describe two new species of Proceratophrys allied to the P. appendiculata species complex by the presence of single and long palpebral appendages and a triangular rostral appendage. Proceratophrys izecksohni sp. nov. is characterized by having small to medium size (SVL 32.1–54.2 mm in males), elongated hindlimbs (thigh length plus tibia length corre-sponding to more than 90% of snout-vent length), a broad head (head width corresponding to 55% of the snout-vent length), and by the light brown gular region and a cream colored ventral surface with scattered brown dots. Proceratophrys belzebul sp.nov. is characterized by its medium size (SVL 40.5–51.3 mm in males), by the absence of contact between the nasals bones and between the nasals and frontoparietals, by a very reduced iliac projection, by having frontoparietal bones very depressed and broad rostrally, by the smooth surface of the squamosal and nasal, by shallow, inconspicuous ventral pits on the maxillae, and by the females presenting the gular region dark brown. The two new species were previously confused with P. appendiculata for which we provide a new diagnosis. A molecular analysis based on mitochondrial and nuclear genes recovers a monophyletic Proceratophrys with high support, and the two new species in a clade with P. ap-pendiculata and P. tupinamba . The data also reinforce the idea that the species groups presently admitted to the genus are not monophyletic.

30 citations

Journal ArticleDOI
TL;DR: A new species of hylid frog from low elevations in the Atlantic Rain Forest is described along the southern coast of the State of Rio de Janeiro and northern coast ofThe State of São Paulo, Brazil.
Abstract: Herein is described a new species of hylid frog from low elevations in the Atlantic Rain Forest, along the southern coast of the State of Rio de Janeiro and northern coast of the State of Sao Paulo, Brazil. The larvae and the site of reproduction are also described. It is a medium-sized species of the genus Hyla and is included in the Hyla albofrenata group by virtue of having lime green color of the body, orange-red iris without bicolored ring, voices sounding like drops of water falling into an empty bottle, and inhabiting mountain stream forests. The new species is very similar to Hyla albofrenata, from which it can be separated by its smaller size, larger calcar, length of the femur and tibia larger than the snout–vent length (SVL), by the clear coloration of the iris, morphology and coloration of the tadpole, and geographic distribution. The new species is also similar to Hyla ehrhardti from which it can be separated by having longer legs, presence of the calcar developed, presence of a supr...

24 citations

Journal ArticleDOI
TL;DR: It is concluded that R. icterica toads at the highlands of Itatiaia feeds on arthropods, mainly ants and coleopterans and that the high consumption of preys with relatively small and similar size as ants in the diet prevents an expected relationship among frog body or mouth size and prey volume and size.
Abstract: In this study, we present some information of the regarding throphic niche from the anuran toad Rhinella icterica living in high altitudes above 2000 m a.s.l. from a habitat of the Atlantic Forest Biome - the Altitude Fields in the Itatiaia National Park. We found 150 prey items in toad stomachs, belonging to five prey types, as well as skin remains and some remains of plant material. The index of relative importance indicated that most important prey types were beetles and ants, these last composing 70% of the diet numerically and the trophic niche breadth (B) was 1.81. The relatively low diversity of prey types we recorded in the diet of R. icterica of Itatiaia and numerically dominated by ants suggests some preference for this item. We do not found significant relationship between the toad measurements with the preys' measurements. We concluded that R. icterica toads at the highlands of Itatiaia feeds on arthropods, mainly ants and coleopterans and that the high consumption of preys with relatively small and similar size as ants in the diet prevents an expected relationship among frog body or mouth size and prey volume and size.

19 citations

Journal ArticleDOI
TL;DR: A new species, attributed to the group of Hyla microcephala Cope, 1886, is described, and it is found in Quebrangulo, State of Alagoas, in Northeastern Brazil.
Abstract: A new species, attributed to the group of Hyla microcephala Cope, 1886, is described. The new species is close to H. bipunctata Spix, 1824, and it is found in Quebrangulo, State of Alagoas, in Northeastern Brazil. The eggs and larvae are also described and some ecological information is added. The new species is compared with other species of the same group, and with species of closely related groups that occur in syntopy. With H. bipunctata, it shares the general form of the body, the yellow ventral coloration and the orange color of the thighs, but it is distinguished by the dorsal Paris-green coloration (beige in H. bipunctata), absence of a dorsal pattern, light red thighs, and ornamentation of the upper lip with two or three yellow stains instead of the characteristic aureolate of H. bipunctata. With H. elegans Wied-Neuwied, 1824, it also shares the general form of the body and the ventral and the thighs coloration, but it is distinguished by the smaller size, absence of a dorsal pattern and light red thighs. From H. oliveirai Bokermann, 1963, the new species is distinguished by the dorsal coloration, the ornamentation of the upper lip and larger size. From H. branneri Cochran, 1948, it differs by the presence of the stains in the upper lip (just one in H. branneri), absence of the dorsal pattern and green dorsal coloration, which is more intense. The tadpole of the new species is provided.

18 citations


Cited by
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Journal ArticleDOI
TL;DR: The present analysis indicates that Hemiphractinae are not related to the other three hylid subfamilies and are therefore removed from the family and tentatively considered a subfamily of the paraphyletic Leptodactylidae.
Abstract: Hylidae is a large family of American, Australopapuan, and temperate Eurasian treefrogs of approximately 870 known species, divided among four subfamilies. Although some groups of Hylidae have been addressed phylogenetically, a comprehensive phylogenetic analysis has never been presented. The first goal of this paper is to review the current state of hylid systematics. We focus on the very large subfamily Hylinae (590 species), evaluate the monophyly of named taxa, and examine the evidential basis of the existing taxonomy. The second objective is to perform a phylogenetic analysis using mostly DNA sequence data in order to (1) test the monophyly of the Hylidae; (2) determine its constituent taxa, with special attention to the genera and species groups which form the subfamily Hylinae, and c) propose a new, monophyletic taxonomy consistent with the hypothesized relationships. We present a phylogenetic analysis of hylid frogs based on 276 terminals, including 228 hylids and 48 outgroup taxa. Includ...

927 citations

Journal ArticleDOI
29 Mar 2019-Science
TL;DR: A global, quantitative assessment of the amphibian chytridiomycosis panzootic demonstrates its role in the decline of at least 501 amphibian species over the past half-century and represents the greatest recorded loss of biodiversity attributable to a disease.
Abstract: Anthropogenic trade and development have broken down dispersal barriers, facilitating the spread of diseases that threaten Earth's biodiversity. We present a global, quantitative assessment of the amphibian chytridiomycosis panzootic, one of the most impactful examples of disease spread, and demonstrate its role in the decline of at least 501 amphibian species over the past half-century, including 90 presumed extinctions. The effects of chytridiomycosis have been greatest in large-bodied, range-restricted anurans in wet climates in the Americas and Australia. Declines peaked in the 1980s, and only 12% of declined species show signs of recovery, whereas 39% are experiencing ongoing decline. There is risk of further chytridiomycosis outbreaks in new areas. The chytridiomycosis panzootic represents the greatest recorded loss of biodiversity attributable to a disease.

680 citations

Journal ArticleDOI
TL;DR: The analyses resulted in a well‐supported phylogenetic hypothesis that provides a historical framework for a discussion of the evolution of characters associated with reproductive biology, gliding behaviour, the physiology of waterproofing, and bioactive peptides.

126 citations

Journal ArticleDOI
TL;DR: The monophyly of the median lingual process (MLP) possessing genus Anomaloglossus is decisively refuted, with the cis- Andean species being sister to Rheobates within Aromobatidae and the trans-Andean species nested within Hyloxalinae, implying two independent origins of the structure in Dendrobatoidea.
Abstract: . Despite the impressive growth of knowledge on the phylogenetic systematics of dart-poison frogs and their relatives (Dendrobatoidea) over the past decade, many problems remain to be addressed. We analyzed up to 189 phenomic characters (morphology, behavior, defensive chemicals) and 15 mitochondrial and nuclear loci scored for 564 dendrobatoid and outgroup terminals, including 76 newly sequenced terminals and > 20 previously unanalyzed species, using tree-alignment and the parsimony optimality criterion in the program POY v.5.1.1 and additional analyses of the implied alignment using TNT v.1.5. Even though data coverage was highly heterogeneous, the strict consensus of 639 optimal trees is highly resolved and we detected only one instance of wildcard behavior involving a small clade of outgroup species. The monophyly of the median lingual process (MLP) possessing genus Anomaloglossus is decisively refuted, with the cis-Andean species being sister to Rheobates within Aromobatidae and the trans-And...

117 citations

Journal ArticleDOI
TL;DR: The Amazonian species currently named R. boulengeri, which has been previously assigned to the genus Rhamphophryne, is shown to be closely related to Dendrophryniscus species, and is proposed to be assigned to a new genus, Amazonella.

89 citations