scholarly journals Geographic distribution, habitat use and vocalizations of the leaf-litter frog Ischnocnema henselii (Anura: Brachycephalidae) in the subtropical Atlantic Forest

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Elaine Maria Lucas ◽  
Veluma Ialú Molinari De Bastiani ◽  
Rodrigo Lingnau

Data on geographic distribution and ecology are essential when defining the conservation status of a species. Herein, we present new information about the geographic distribution, habitat and advertisement call of Ischnocnema henselii, an endemic species of the southern Atlantic Forest. We conducted this study in forest fragments in the state of Santa Catarina, Southern Brazil, from January 2008 to November 2012. We recorded I. henselii in eight fragments over 100 ha in size, both inside and outside conservation units. We often observed less than 20 males in calling activity. The calling activity was daytime and nighttime, and more intense in the rain. We observed individuals perched on vegetation, on leaves or branches, on the leaf litter or under tree trunks. Duration of advertisement calls ranged from 14.71 ± 1.68 s (n = 11 calls) and interval between notes was 0.22 ± 0.13 s (n = 99 notes). We observed that the advertisement calls had a feature that we call "alternating modulation" in the amplitude of the notes. We suggest that further bioacoustic studies should analyze the relevance of this alternating modulation, to understand its role in communication. Although I. henselii is a habitat specialist, it is currently considered a common species, classified as Least Concern by Brazilian and IUCN lists. In the region studied, characterized by small and isolated remnants of the Atlantic Forest, I. henselii is not an abundant species and its spatial distribution is always associated with wet forest fragments. The increasing degradation of forest remnants in this region causes microclimatic and structural changes that may compromise the permanence of strictly forest and moisture-dependent species for reproduction, such as I. henselii.

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Renato A. F. de Lima ◽  
Alexandre A. Oliveira ◽  
Gregory R. Pitta ◽  
André L. de Gasper ◽  
Alexander C. Vibrans ◽  
...  

AbstractTropical forests are being deforested worldwide, and the remaining fragments are suffering from biomass and biodiversity erosion. Quantifying this erosion is challenging because ground data on tropical biodiversity and biomass are often sparse. Here, we use an unprecedented dataset of 1819 field surveys covering the entire Atlantic Forest biodiversity hotspot. We show that 83−85% of the surveys presented losses in forest biomass and tree species richness, functional traits, and conservation value. On average, forest fragments have 25−32% less biomass, 23−31% fewer species, and 33, 36, and 42% fewer individuals of late-successional, large-seeded, and endemic species, respectively. Biodiversity and biomass erosion are lower inside strictly protected conservation units, particularly in large ones. We estimate that biomass erosion across the Atlantic Forest remnants is equivalent to the loss of 55−70 thousand km2 of forests or US$2.3−2.6 billion in carbon credits. These figures have direct implications on mechanisms of climate change mitigation.


Zootaxa ◽  
2006 ◽  
Vol 1334 (1) ◽  
pp. 1 ◽  
Author(s):  
ANTONIO DE PADUA ALMEIDA ◽  
ARIADNE ANGULO

Adults and tadpoles of a new species of the genus Leptodactylus are described from southeastern Brazil. Leptodactylus thomei sp.nov. can be found amidst the leaf litter within cocoa plantations along the northern coastal region of the state of Espírito Santo. It can be distinguished from other species of the Leptodactylus marmoratus group by its advertisement call, which is described, together with agonistic calls, and compared to advertisement calls of other species of the group that occur in southern and southeastern Brazil. The systematics of associated populations is discussed.


2019 ◽  
Vol 18 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Marcos R. Bornschein ◽  
Mario M. Rollo Jr. ◽  
Marcio R. Pie ◽  
André E. Confetti ◽  
Luiz F. Ribeiro

Redescription of the advertisement call of Brachycephalus tridactylus (Anura: Brachycephalidae). Miniaturized frogs of the genus Brachycephalus have restricted geographical distributions throughout the Atlantic Forest. Ecological data for most species are scarce and advertisement calls have been described for only 12 of the 36 known species, including B. tridactylus. The considerable duration of note length of the advertisement call of B. tridactylus has been mentioned in comparative studies of vocalizations in Brachycephalus. The single original recording of B. tridactylus, together with recordings made in March 2016 at the type locality, were analyzed to document any variation and redescribe the advertisement call of the species. In the recent recordings of B. tridactylus, the average length of the call is 50.8 s and the call is composed of 10–13 notes emitted at a note rate of 3.7–8.3 notes per min. The notes are isolated and composed of 1–3 pulses, with the note duration varying from 0.002–0.021 s. These values are not consistent with the original description of the call of B. tridactylus. The note duration is 89% shorter and the original description does not include notes with 1–3 pulses. The notes of B. tridactylus have few pulses, whereas those of B. ephippium have several. The advertisement call of B. tridactylus differs from that of B. albolineatus and B. mirissimus by having only isolated notes.


2021 ◽  
Vol 12 ◽  
Author(s):  
Paulo Sérgio Bernarde ◽  
Manuela Berto Pucca ◽  
Ageane Mota-da-Silva ◽  
Wirven Lima da Fonseca ◽  
Marllus Rafael Negreiros de Almeida ◽  
...  

The two-striped forest-pitviper (Bothrops bilineatus) is an arboreal snake that is currently represented by two subspecies (B. b. bilineatus and B. b. smaragdinus) that comprise a species complex, and its distribution is in the Amazon and the Atlantic Forest. The rarity of encounters with this snake is reflected in the low occurrence of cases of snakebites throughout its geographic distribution and the resulting low number of published clinical reports. However, in some areas, B. bilineatus proves to be more frequent and causes envenomations in a greater proportion. Herein, we review the main aspects of the species complex B. bilineatus, including its biology, ecology, taxonomy, morphology, genetic and molecular studies, geographic distribution, conservation status, venom, pathophysiology and clinical aspects, and epidemiology. In addition, the different antivenoms available for the treatment of envenomations caused by B. bilineatus are presented along with suggestions for future studies that are needed for a better understanding of the snakebites caused by this snake.


Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 507 ◽  
Author(s):  
Juliana Peres ◽  
José Eduardo Simon

This study provides the first record of Physalaemus maximus in the state of Espírito Santo, southeastern Brazil. Physalaemus maximus was recorded in the Municipality of Castelo (1100 m a.s.l.), where it was observed in explosive reproduction in an Atlantic Forest remnant on 06 January 2010. The advertisement call of P. maximus consisted of a single multipulsed note, with carrier frequency emitted in 1,250 Hz and mean duration of 2.10 s. The record from Castelo extends in approximately 140 km eastward from the previous geographic distribution admitted for the species.


Check List ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 1283-1287
Author(s):  
Luiz Armando de Araújo Góes-Neto ◽  
Alexandre Salino

This is the first voucher-based record of Selaginella conduplicata Spring in the Brazilian Atlantic Forest and the Brazilian Northeast. This species was considered restricted to the Amazon Basin, and here we report its occurrence beyond the Amazonian limits, expanding its distribution. Illustrations of the diagnostic characters of the species, information of geographic distribution and conservation status are presented. Besides, we present description as well as taxonomic and nomenclatural comments.


Phytotaxa ◽  
2020 ◽  
Vol 474 (2) ◽  
pp. 99-118
Author(s):  
MARIANA DE OLIVEIRA BÜNGER ◽  
FIORELLA FERNANDA MAZINE ◽  
JOÃO RENATO STEHMANN

Eugenia section Phyllocalyx, a mainly Brazilian Atlantic Forest group of 16 species, is revised based on a study of over 2000 plant collections. The relationships of Eugenia sect. Phyllocalyx to other sections in Eugenia are discussed. All species are described and comments about geographic distribution and morphology are provided. An identification key and notes about its conservation status are also presented. Lectotypes are chosen for six species and second-step lectotypification is proposed for two species.


Phytotaxa ◽  
2020 ◽  
Vol 458 (2) ◽  
pp. 173-181
Author(s):  
ALICIA MARQUES TORRES ◽  
MARCOS JOSÉ DA SILVA ◽  
WESLEY PATRÍCIO FREIRE DE SÁ CORDEIRO ◽  
SARAH MARIA ATHIÊ-SOUZA ◽  
MARGARETH FERREIRA DE SALES

Two new species, Phyllanthus itamarajuensis and P. tuberculatus (Phyllanthaceae), currently restricted to the Atlantic Forest of Bahia State, Brazil, are described and illustrated. Phyllanthus itamarajuensis is distinguished by having long styles (2–2.2 mm long) associated with subshrubby habit, discretely asymmetrical basal leaves, and anthers with vertical dehiscence. Phyllanthus tuberculatus is characterized by glabrous leaves, a long pistillate pedicel (18–20 mm long), flowers of both sexes 5-merous, disk of the staminate flowers with five obtriangular segments with tuberculated surfaces, each being separated by a deep recess, and each with a central pore, anthers with non-divergent thecae, and a patelliform pistillate disk. The systematic position of both new species is discussed, and comments are provided on their morphological relationships, geographic distribution, conservation status, environmental preferences, and phenology.


2021 ◽  
Vol 9 ◽  
Author(s):  
Jonatas Tavares ◽  
Roberto Novaes ◽  
Iuri Veríssimo ◽  
Maria Alice Kuzel ◽  
Sócrates da Costa-Neto ◽  
...  

The Pedra Branca Forest is located in a highly-urbanised region of the central portion of Rio de Janeiro City, comprises the largest urban forest on the continent and is isolated from other Atlantic Forest remnants. The local flora and fauna are protected by three conservation units (Pedra Branca State Park, Prainha Municipal Natural Park and Guaratiba State Biological Reserve) and one biological station (Fiocruz Atlantic Forest Biological Station—EFMA). Here, we provide an updated list of the bat fauna for the remnant. The results are based on samplings at EFMA and literature data from Pedra Branca State Park and Prainha Natural Park. The three sampling sites combined resulted in 31 species, 23 genera and four families. Phyllostomidae was the richest family with 24 species, followed by Vespertilionidae with five species (3%) and Molossidae and Noctilionidae with one species. The local bat fauna was predominantly composed of species with a broad geographic distribution.


2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Sandra Mara Sabedot Bordin ◽  
Marcelo Monteiro ◽  
Valéria Wesner Ferreira ◽  
Junir Antonio Lutinski ◽  
Everton Nei Lopes Rodrigues

Abstract: This study aimed to present a list of the species of frugivorous butterflies occurring in Atlantic Forests, in the Conservation Units: National Forest of Chapecó (FLONA), Ecological Station of Mata Preta (ESEC) and State Park of Araucárias (PAEAR) and adjacent forest fragments, located in the western region of the state of Santa Catarina. Three samplings were conducted between December 2017 and March 2018, totaling 24 days of collection in each sampling area. Van Someren-Rydon traps were used to capture frugivorous butterflies. There were 4,231 frugivorous butterflies belonging to four subfamilies, 12 tribes and 49 species. In all, 37 species of frugivorous butterflies were sampled in FLONA and 29 in adjacent forest fragments. In ESEC, 29 species and 33 in adjacent forest fragments. In PAEAR, 33 species and 28 in adjacent forest fragments. Of the total species registered, 15 species are new records for the state of Santa Catarina and 11 are new records for the western region of the state. The most abundant species for FLONA were: Manataria hercyna (Hübner, 1821) and Hermeuptychia sp. In ESEC, were Hermeuptychia sp. and Yphthimoides ordinaria (Freitas, Kaminski & Mielke, 2012). In PAEAR, greater abundance of Forsterinaria quantius (Godart, 1824) and Eryphanes reevesii (Doubleday, 1849) were verified. For the adjacent forest fragments to Conservation Units, there was a greater abundance of Hermeuptychia sp., Moneuptychia soter (Butler, 1877), Morpho epistrophus (Fabricius, 1796) e Forsterinaria quantius (Godart, 1824). Satyrinae presented higher richness (S = 34) and abundance (90.58%) in all areas sampled. The rarefaction and extrapolation curves for the Conservation Units and adjacent forest fragments showed a greater rise in the FLONA and PAEAR sampling units and their adjacent forest fragments. The estimated sampling coverage for Conservation Unit and forest fragments was above 97%. The richness calculated through the Jackknife 1 estimator, for the FLONA and PAEAR samplings, presented a value of 50.75 and 37.09, respectively. The fauna of frugivorous butterflies from this region, first investigated in areas of Conservation Units, showed to be expressive and well represented in the Atlantic Forest Biome, indicating its potential as a refuge for biodiversity.


Sign in / Sign up

Export Citation Format

Share Document