Environmental humidity and leaf-litter depth affecting ecological parameters of a leaf-litter frog community in an Atlantic Rainforest area

Oliveira, Jane C. F.; Pralon, Edicarlos; Coco, Lívia; Pagotto, Renata Valls; Rocha, Carlos Frederico Duarte

doi:10.1080/00222933.2013.769641

Cited by 17 publications

(14 citation statements)

References 33 publications

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“…Amphibian assemblages have been studied widely in Brazil (Conte and Rossa-Feres 2007;Garey and Hartmann 2012;Zina et al 2012;Oliveira et al 2013), where they provide important data for the understanding of the ecological relationships among species in time (Santos-Pereira et al 2011) and space (Juncá 2006;Ferreira et al 2012). Species lists (Wachlevski and Rocha 2010;Telles et al 2012;Affonso et al 2014;AlmeidaGomes et al 2014;Crivellari et al 2014) typically constitute an essential first step for the monitoring of the fauna of specific habitats and the assessment of the status of species and their populations, which can be used to guide conservation decision-making (Pimenta et al 2005), especially considering that most strategies are based on local species richness (Rocha et al 2003) and on the extinction risk of different species (Miller et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Anuran species of the Salto Morato Nature Reserve in Paraná, southern Brazil: review of the species list

Santos-Pereira¹,

Milani²,

Barata-Bittencourt³

et al. 2016

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Abstract:We provide an updated checklist of the anurans of the Salto Morato Nature Reserve (SMNR), Paraná, southern Brazil, including information on species endemism, conservation status, habitat use, and reproductive modes. We sampled the study area between February 2013 and July 2015, using Visual Encounter Surveys, totaling 700 hours of sampling effort. We supplement our primary data with secondary data (published papers and voucher specimens), and through these, we found a total of 54 anuran species representing 23 genera and 10 families. All the frogs recorded are endemic to the Atlantic Forest. Although no species has been listed as Endangered on the Red Lists of Paraná state, Brazil, and the IUCN, five are classified as Data Deficient. Most of the species recorded were arboreal (55.5%), a third were terrestrial (33.3%), and the remainders were rheophilic (11.1%). We identified 18 different reproductive modes, with types 1 (lay eggs in lentic water where the tadpoles develop) and 23 (direct development of terrestrial eggs) being the most common. Our findings indicate that the SMNR currently has the greatest diversity of anuran species and reproductive modes of any area in southern Brazil.

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Section: Introductionmentioning

confidence: 99%

Anuran species of the Salto Morato Nature Reserve in Paraná, southern Brazil: review of the species list

Santos-Pereira¹,

Milani²,

Barata-Bittencourt³

et al. 2016

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“…A difference in the precipitation levels at this site was also evaluated, with an increase of 40 mm in mean annual precipitation every 100 m at elevation [124]. Studies on litter anurans of the Atlantic Rainforest, including Brachycephalus, have shown that population densities are particularly affected by air humidity, air temperature, and altitude [52,55,78,90]. This climatic dependence and its relationship with the altitude gradient raises concerns for the long-term conservation of Brachycephalus species that occur in mountains with a restricted altitudinal amplitude.…”

Section: Discussionmentioning

confidence: 99%

Conservation Status of Brachycephalus Toadlets (Anura: Brachycephalidae) from the Brazilian Atlantic Rainforest

2019

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The number of described anurans has increased continuously, with many newly described species determined to be at risk. Most of these new species inhabit hotspots and are under threat of habitat loss, such as Brachycephalus, a genus of small toadlets that inhabits the litter of the Brazilian Atlantic Rainforest. Of 36 known species, 22 were described in the last decade, but only 11 have been assessed according to the IUCN Red List categories, with just one currently listed as Critically Endangered. All available data on occurrence, distribution, density, and threats to Brachycephalus were reviewed. The species extent of occurrence was estimated using the Minimum Convex Polygon method for species with three or more records and by delimiting continuous areas within the altitudinal range of species with up to two records. These data were integrated to assess the conservation status according to the IUCN criteria. Six species have been evaluated as Critically Endangered, five as Endangered, 10 as Vulnerable, five as Least Concern, and 10 as Data Deficient. Deforestation was the most common threat to imperiled Brachycephalus species. The official recognition of these categories might be more readily adopted if the microendemic nature of their geographical distribution is taken into account.

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“…In contrast, only Haddadus binotatus was recorded exclusively in the forest environment. In general, it is known that H. binotatus is an important component of the communities of litter anurans, being abundant in some areas of the Atlantic Forest (e.g., Rocha et al 2007, Almeida-Gomes et al 2010, Oliveira et al 2013.…”

Section: Discussionmentioning

confidence: 99%

Diversity and Distribution of Anurans From Mata Das Flores State Park, Espírito Santo, Southeastern Brazil

et al. 2019

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The scarcity of information on anurans to many areas makes it difficult to delimit new conservation areas with higher relevance to the taxa, and therefore, knowledge of community composition and the study of ecological specialties are of fundamental importance for the conservation of the biodiversity. We studied the anuran community of Mata das Flores State Park (MFSP), located in the municipality of Castelo, Espírito Santo state, Southeastern Brazil, evaluating the richness, composition, abundance, and distribution of anurans species. We sampled the MFSP from March/2017 to January/2018, with four occasions during this time period. We performed sampling at night in six plots of 250 meters distributed along the MFSP area, three plots in flooded environments and three plots in forest environments. We sampled the anurans using the active search method, with visual and auditory sampling. During each transect, the plot was surveyed by two observers. We recorded 226 individuals from 18 species of anurans, distributed in six families. The composition and abundance of the anuran species differed between the plots located near the flooded areas and those located in forest areas of the MFSP. Our study is the first to provide data from the MFSP anuran community and our results point to a worrying scenario for the biodiversity of the area, due to the diverse anthropic impacts and presence of the exotic species Lithobates catesbeianus. The Park is an important forest fragment, being continuous to the ecological corridor Pedra Azul-Forno Grande, but it is the conservation unit that suffers the most impacts due to its proximity to urban areas. Thus, long-term studies are necessary, mainly to quantify and evaluate the effects of these impacts on local fauna.

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Environmental humidity and leaf-litter depth affecting ecological parameters of a leaf-litter frog community in an Atlantic Rainforest area

Cited by 17 publications

References 33 publications

Anuran species of the Salto Morato Nature Reserve in Paraná, southern Brazil: review of the species list

Anuran species of the Salto Morato Nature Reserve in Paraná, southern Brazil: review of the species list

Conservation Status of Brachycephalus Toadlets (Anura: Brachycephalidae) from the Brazilian Atlantic Rainforest

Diversity and Distribution of Anurans From Mata Das Flores State Park, Espírito Santo, Southeastern Brazil

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