Worrying News for Brazilian Caatinga: Prevalence of <i>Batrachochytrium dendrobatidis</i> in Amphibians

Benício, Ronildo Alves; Carvalho, Tamilie; Barbosa, Maria D. R.; Costa, Janiella de M; Silva, Felipe Cavalcanti Carneiro da; Fonseca, Mariluce Gonçalves

doi:10.1177/1940082919892626

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…Puschendorf et al 2009;Seimon et al 2015;Flechas et al 2017;Miller et al 2018;Bacigalupe et al 2019). However, ecological relationships among hosts and parasites are complex and the outcomes of their interactions vary in association with global environmental variables but also with the complexity of the biological community at the local scale (Benício et al 2019. Indeed, this relationship seems to be generally non-linear and that high biodiversity may dilute parasite occurrence (Halliday and Rohr 2019).…”

Section: Discussionmentioning

confidence: 99%

Modelling the amphibian chytrid fungus spread by connectivity analysis: towards a national monitoring network in Italy

et al. 2021

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The emerging amphibian disease, Batrachochytrium dendrobatidis (Bd), is driving population declines worldwide and even species extinctions in Australia, South and Central America. In order to mitigate effects of Bd on amphibian populations, high-exposed areas should be identified at the local scale and effective conservation measures should be planned at the national level. This assessment is actually lacking in the Mediterranean basin, and in particular in Italy, one of the most relevant amphibian diversity hotspots in the entire region. In this study, we reviewed the available information on Bd in Italy, and conducted a 5-year molecular screening on 1274 individual skin swabs belonging to 18 species. Overall, we found presence of Bd in 13 species and in a total of 56 known occurrence locations for peninsular Italy and Sardinia. We used these occurrence locations and climate data to model habitat suitability of Bd for current and future climatic scenarios. We then employed electric circuit theory to model landscape permeability to the diffusion of Bd, using a resistance map. With this procedure, we were able to model, for the first time, the diffusion pathways of Bd at the landscape scale, characterising the main future pathways towards areas with a high probability of Bd occurrence. Thus, we identified six national protected areas that will become pivotal for a nationally-based strategic plan in order to monitor, mitigate and possibly contrast Bd diffusion in Italy.

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Section: Discussionmentioning

confidence: 99%

Modelling the amphibian chytrid fungus spread by connectivity analysis: towards a national monitoring network in Italy

et al. 2021

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“…It is important to highlight this fungus was already detected in northeastern Brazil, sometimes inside some protected areas (e.g. Carvalho et al 2017, Amorim et al 2019, close localities to near SCNP in Piauí state (Benício et al 2019). Therefore, it is also important to investigate the anuran diversity in this protected area considering the amphibian declines worldwide.…”

Section: Despite the Differences In Phytogeographic Units Between Setementioning

confidence: 93%

Anurans of Sete Cidades National Park, Piauí state, northeastern Brazil

et al. 2020

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The Sete Cidades National Park is located in the Brazilian municipalities of Piracuruca and Brasileira, Piauí state, in a transitional zone between the Caatinga and Cerrado biomes. Studies on its herpetofauna were limited to anuran distribution notes and a snake checklist. Thus, here we present an unpublished species list of anurans from Sete Cidades National Park, Piauí state, northeastern Brazil. We recorded one of the two highest species richness for all northeastern National Parks, and also increased the geographic distribution of one species in the state of Piauí. Most species observed are common of both Caatinga and Cerrado biomes or have wide distribution in Brazil. The anuran assemblage of Sete Cidades National Park is more similar to those registered at the Delta do Parnaíba Environmental Protection Area, Ceará, Piauí and Maranhão states, and Ubajara National Park, Ceará state. These results increase our knowledge on anuran diversity in northeastern Brazil, providing basic information for management and conservation actions of an important Brazilian National Park.

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“…Several studies have described some type of anomaly in amphibians and its importance in the decline of populations (e.g., Ouellet, 2000;Cohen Jr., 2001;Kiesecker et al, 2004;Henle et al, 2017a;Herek et al, 2020). Although Rhinella diptycha and R. mirandaribeiroi are nationally assessed as least concern (ICMBio, 2018), locally populations have been recorded with high rates of fungi occurrences (Bd), parasites and anomalies (Benício et al, 2019;Benício et al, 2022;this study). The combination of the high vulnerability of amphibians to diseases and their pathogens, the records of anomalies and the risk of extinction of local populations reinforce the importance of natural history studies to better understand these relationships and their consequences.…”

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confidence: 95%

Malformations in Amphibians (Anura: Bufonidae) From Northeastern Brazil

Alves de Sousa,

Gonçalves Fonseca,

Alves Benício

2023

Rev Latin Herp

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Anomalies in natural amphibian populations have been reported for over 400 species from around the world. ese anomalies are dif cult to register and their observations are still scarce for most species and regions, due mainly to their fortuitous nature. Here, we present three new records of morphological anomalies in bufonids from northeastern Brazil. is is the rst study to report ocular anomalies (anophthalmy and cataract) in Rhinella diptycha and the rst report of an anomaly in Rhinella mirandaribeiroi in Brazil.

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Worrying News for Brazilian Caatinga: Prevalence of Batrachochytrium dendrobatidis in Amphibians

Cited by 9 publications

References 29 publications

Modelling the amphibian chytrid fungus spread by connectivity analysis: towards a national monitoring network in Italy

Modelling the amphibian chytrid fungus spread by connectivity analysis: towards a national monitoring network in Italy

Anurans of Sete Cidades National Park, Piauí state, northeastern Brazil

Malformations in Amphibians (Anura: Bufonidae) From Northeastern Brazil

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