HERPETOFAUNA DA CAATINGA PDF
Herpetofauna of protected areas in the Caatinga IV: Chapada Diamantina National Park, Bahia, Brazil. Felipe de Medeiros Magalhães, Daniel Orsi Laranjeiras. 9 jan. Herpetofauna em unidades de conservação da Caatinga III: Parque Nacional do Catimbau, Pernambuco, Brasil. Isabella Mayara Monteiro de. Oliveira Mesquita2, David Lucas Röhr1, Willianilson Pessoa da Silva1, Gustavo the Caatinga herpetofauna, especially for the region of.
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Herpetofauna of protected areas in the Caatinga III: Parque Nacional do Catimbau, Pernambuco, Brasil.
Despite the increase in herpetofaunal inventories in the Caatinga biome, information for many areas is still lacking and new surveys are required. Thirty-seven pitfall trap arrays composed of 4 buckets each, along with glue traps and active searches were used to sample local herpetofaunal diversity. We recorded 21 species of frogs, 25 lizards, 11 snakes, and 1 chelonian. All sampling methods contributed significantly to achieve the amphibian and reptile diversity recovered in the inventory.
Rarefaction curves and richness estimators suggest that local biodiversity is still underestimated. We attempted to show the great potential of Catimbau National Park, characterized by the richest herpetofauna surveyed in a core region of the biome, along with the presence of endemic species such as the worm snake Amphisbaena supranumeraria and the limbless lizard Scriptosaura catimbauunderscoring the importance of the area for the conservation and maintenance of the Caatinga herpetofauna biodiversity.
The Caatinga biome is exclusive to Brazil, covering approximately Historically, the Caatinga herpetofauna was considered impoverished and lacking character compared to forest biomes in South America Vanzolini et al. However, a rapid increase in the last decades of long-term inventories for several localities has shown a much higher amphibian and reptile species richness and endemism than previously believed Rodrigues Currently, there are more than squamate and amphibian species known for the Caatinga, many of which are endemic RodriguesDelfimand new endemic species are continuously being described Cruz et al.
Despite this increase in herpetofaunal inventories, information for many areas of the biome is still lacking and new surveys are required. Herein, we present the results of a day inventory of the herpetofauna from the Catimbau National Park, in the semi-arid region of Pernambuco State. Our aims were to 1 provide a list based on an intensive effort conducted over a whole month; 2 contribute to the knowledge of the Caatinga herpetofauna, and 3 contextualize the results comparing, when possible, the richness and abundance of squamates and amphibians with other Caatinga sites.
The Park is included in the sedimentary deposits of Tacaratu formation, from the Paleozoic era, with the topography mainly uneven, due to strong intemperism Ferreira Also, the region is considered to be of extreme biological importance due its richness and endemism MMA Points refer to locations and trails where we conducted searches.
The Park has an area of approximately 62, ha, and ranges from m to 1, m of altitude.
The landscape is a typical Caatinga, with physiognomies such as dense arboreal Caatinga, shrubby spineless vegetation, sandy soils and rock fields, both evergreen and deciduous flora with plant species such as Caesalpinia ferrea, Ziziphus joazeiro, Orbignya phalerataBursera leptophloeos, as well as cacti and bromeliads Figueiredo et al.
The inventory was conducted from March 13th to April 14th, We used 37 pitfall trap arrays divided into two different trails, one in an open shrubby vegetation area with sandy soil and the other in a dense forest vegetation area. Additionally, we used glue traps distributed as quartets in each array of pitfall traps: All traps were checked daily.
We used a standardized methodology that allows results to be compared across previous and future inventories Garda et al. We also carried random active searches for specimens, which were conducted in the morning, in the afternoon, herpetofxuna at night, in the following locations and trails, locally knows as: In order TO cover the widest range of microhabitat and activity periods possible, we further searched sites with different phytophysiognomies, like dense herpetoofauna areas, open vegetation areas with sandy soils, rock crops, and areas with water bodies.
The function of richness Mao Tau was calculated as the accumulation function of species throughout the number of collected individuals. The species rarefaction curves were attained without replacement, using 1, randomizations.
In addition, we used species richness estimators with nonparametric incidence-based estimators: The species rarefaction and richness estimators were constructed in EstimateS 9. We recorded 1, individuals pertaining to 37 species of reptiles 25 lizards, three amphisbaenians, 11 snakes, and one chelonian and 21 species of amphibians Table 1Figures 3 – 8.
Of those, eigth species were recorded in the Catimbau National Park for the first time. The rarefaction curves Mao Tau did not reach stability Figure 9 and the various species richness estimators produced greater estimates than the observed richness for amphibians and reptiles, or also for individual estimates for lizards and snakes Table 2.
With the addition of those few species, the number of species of amphibians and lizards herpetofaunw the richness projected by the estimators. However, snake richness will increase considerably with more sampling effort and consequently the number of reptiles will rise. Usually, in rapid inventories, snakes are harder to sample than lizards and frogs because they present secretive habits, low abundance, do not produce sound, and due to the lack of effective collecting methods Shine This is supported by our results, which show species accumulation curves quite asymptotic for amphibians and caaitnga but not for reptiles and snakes, and that species richness estimates were higher than the observed number of species, specially for reptiles and snakes.
Taken together, our results indicate that the Central Pernambuco region has the highest known herpetofaunal richness within the Caatinga and that Catimbau National Park is a key area for Caatinga biodiversity conservation Rodrigues Out of 21 amphibian species, we collected only five of them with pitfall traps as well as through active search Table 1.
All the other 16 species were collected exclusively by active search, indicating the importance of such method for this group.
For lizards, four species were only collected through active search Table 1 and three species were only caught with pitfall traps, including two amphisbaenians and the tiny gecko Coleodactylus meridionalis. The glue traps were efficient for lizard survey, capturing 64 individuals from 13 species. Usually, snakes and turtles are not prone to be collected with specific traps.
It is more likely to find snakes and turtles during active searches or sporadically. We collected the two specimens of the mud-turtle Kinosternon scorpioides during the active searches. Also, four snake species were only found and collected through active search Table 1.
Seven species we collected both during active searches and in the pitfall traps. Although we used small buckets 30 liters for pitfall traps, we collected a total of 35 snake specimens with this method.
Finally, two species Amphisbaena alba and Philodryas olfersii were found killed on roads within and adjacent to the Catimbau National Park. While we did not extensively searched roads, this may be a great concern due to the impact on the wild fauna, primarily around protected areas. All amphibians found in Catimbau National Park were anuran species distributed in seven families.
The composition of amphibian families is similar to other surveys in the Caatinga core region Garda et alArzabe et alwith species distributed in families with a dominance of Hylidae and Leptodactylidae, followed by other families with species, such as Bufonidae and Odontophrynidae.
We also found a high diversity of lizards in Catimbau National Park. The lizard richness is higher than other Caatinga areas, which typically range from 14 to 21 species VittCavalcanti et al. Furthermore, the catinga of some species, such as the gymnophthalmids Scriptosaura catimbau and Vanzosaura rubricaudaor the tropidurid Tropidurus cocorobensiswas remarkably high. Nevertheless, more species are likely to be herpetofaunw to the local lizard richness.
Usually, snakes contribute with a small number of species in short-term inventories. Those two species have their distributions almost confined to the Caatinga biome Coelho et al. Finally, the only turtle species found in Catimbau National Park is a common species in Caatinga areas and it has wide distribution in South America Bonin et al.
In this study, our principal goal, using the same methodology to describe and compare the herpetofauna of the protected areas in Caatinga biome has been reached see Garda et al.
Additionally, we attempted to show the great potential of Catimbau National Park in harboring an important herpetofaunal Caatinga diversity, characterized by the richest herpetofauna surveyed in a core region of the biome.
We suggest that long-term studies in the area should be conducted, attempting to describe the entire herpetofauna of the region.
Probably, new species will be added caatlnga the list, mostly those pertaining to biological groups difficult to access rapidly, such as snakes. In addition, our work reinforces the importance of the Park in conserving and maintaining Caatinga biodiversity, and new efforts to a better preservation and management of the National Park are certainly recommended.
The authors are grateful to all researchers that helped sometime during the fieldwork. Turtles of the world. Herpetofauna of protected areas in the Caatinga II: Check List 10 1: Overview of the distribution of snakes of the genus Thamnodynastes Dipsadidae in northeastern Brazil, with new records and remarks on their morphometry and pholidosis.
Statistical estimation of species richness and shared species from samples. User’s Guide and application published at: Interpolating, extrapolating and comparing incidence-based species accumulation curves.
Herpetofauna of protected areas in the Caatinga III: The Catimbau National Park, Pernambuco, Brazil
Estimating herpegofauna biodiversity through extrapolation. Parque Nacional do Catimbau. Herpetofauna of protected areas in the Caatinga I: Check List 9 2: Squamata, Gymnophtalmidae, Anotosaura vanzolinia Dixon, New records and geographic distribution map. Changing the course of biodiversity conservation in the Caatinga of Northeastern Brazil.
Amphibians and reptiles from a highly diverse area of the Caatinga domain: A new species of Pseudopaludicola Anura: Leiuperinae from Northeastern Brazil. A new acatinga and species of eyelid-less and limb reduced gymnophthalmid lizard from northeastern Brazil Squamata, Gymnophthalmidae. Propostas para o Bioma Caatinga. The ecology of tropical herpetofahna in the Caatinga of northeast Brazil.
Isabella Mayara Monteiro de Carvalho Pedrosa, e-mail: This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the herpetofsuna work is properly cited.
Services on Demand Journal. Amphibians; reptiles; inventory; northeast Brazil. Introduction The Caatinga biome is exclusive to Brazil, covering approximately Results and Discussion We recorded 1, individuals pertaining to 37 species of reptiles 25 lizards, three amphisbaenians, 11 snakes, and one chelonian and 21 species of amphibians Table 1Figures 3 – 8.
Acknowledgements The authors are grateful to all researchers that helped sometime during the fieldwork. March 20, ; Revised: September 17, ; Accepted: How to cite this article.