scholarly journals The genus Anisancylus Pilsbry, 1924 (Planorboidea, Ancylinae) in South America: species distribution and new records

Check List ◽  
2017 ◽  
Vol 13 (4) ◽  
pp. 267-275
Author(s):  
Ximena M. C. Ovando ◽  
Caroline S. Richau ◽  
Sonia B. Santos
Mammalia ◽  
2020 ◽  
Vol 84 (2) ◽  
pp. 150-161
Author(s):  
Analía Laura Giménez ◽  
Mauro Ignacio Schiaffini

AbstractVespertilionid species are widely distributed in South America. They are highly diverse, with physiological and behavioral adaptations which allow them to extend their distributions into temperate areas. In Patagonia, this family is represented by seven species in three genera (Histiotus, Lasiurus and Myotis). In this study, we analyzed the distribution of two vespertilionid species, Lasiurus villosissimus and Myotis dinellii, including new southernmost records, and their relationship with environmental variables. Two different spatial scales were analyzed: a continental approach for species distribution analyses (South America), and local trapping of bats in northwestern Chubut province, Argentina. We present new southern limits for L. villosissimus and M. dinellii, and included new records for Patagonian bats. The big hoary bat L. villosissimus was recorded as the largest bat inhabiting Patagonia, relating it as a bat mainly inhabiting low, humid and temperate/warm areas. The little yellow bat M. dinellii, instead, is the smallest mammal and the smallest bat recorded in Patagonia to date, related mainly with dry, mid-altitude and temperate/warm areas.


Mammalia ◽  
2015 ◽  
Vol 79 (3) ◽  
Author(s):  
Marcus Vinicius Brandão ◽  
Guilherme Siniciato Terra Garbino ◽  
Leandro Perez Godoy ◽  
Leandro Alves da Silva ◽  
Wanieulli Pascoal

Abstractis a marsupial with unique morphological and ecological characteristics. Owing mainly to its semi-aquatic habits, it is rarely collected by conventional methods, being consequently underrepresented in scientific collections. Its distribution in South America is currently considered disjunct, with a north-west and a south-east portion, and a large gap of more than one thousand kilometers that comprises central Amazonia and a large portion of the Cerrado. On the basis of four museum specimens and two photographed live animals, we present six new records for the species. These records extend the species’ distribution, showing that its range is continuous from southern Amazonia and through Cerrado gallery forests, to the southern portion of its range in southeastern South America. Most known records of


2010 ◽  
Vol 2010 ◽  
pp. 1-3 ◽  
Author(s):  
Eduardo Fernando dos Santos ◽  
Fernando Barbosa Noll

Knowledge about the species distribution ofEpipompilusKohl, 1884, is largely based on the records from the species description. Recent efforts in South American bodiversity studies indicate that knowledge about the distribution ofEpipompilusspecies in the region is in an early stage. Two new records ofE. aztecuswere obtained for the semideciduous Atlantic Forest, in central Brazil, and one record for the Amazonian Forest in northern Brazil, indicating that its distribution extends between Central and South America. The new records ofE. excelsuswere obtained mainly from the Atlantic Forest highlands, indicating that this species is commonly found in the southeastern South American Central Plateau and restricted to forest ecosystem of this region.


Zootaxa ◽  
2017 ◽  
Vol 4238 (2) ◽  
pp. 268 ◽  
Author(s):  
CLAUDIA MOLINA-ZULUAGA ◽  
ESTEFANY CANO ◽  
ADRIANA RESTREPO ◽  
MARCO RADA ◽  
JUAN M. DAZA

The glassfrog genus Cochranella, with nine recognized species, is distributed in the lowlands and mid elevation of the Neotropical forests, from Nicaragua to Bolivia (Guayasamin et al. 2009; Twomey et al. 2014). Four species are trans-Andean—C. granulosa (Taylor 1949) occurs in the lowlands and mountains, at mid elevation, of Central America, C. litoralis (Ruiz-Carranza & Lynch 1996) and C. mache Guayasamin & Bonaccorso 2004 occur in the Pacific lowlands and the western cloud forests of Colombia and Ecuador, and C. euknemos (Savage & Starrett 1967) occurs both in Central America and South America (northwestern Colombia).—The other five species have cis-Andean distributions in the Amazonian slopes and lowlands, from Colombia to Bolivia: C. nola Harvey 1996, C. guayasamini Twomey, Delia & Castroviejo-Fisher 2014, C. resplendens (Lynch & Duellman 1973), C. erminea Torres-Gastello, Suárez-Segovia & Cisneros-Heredia 2007, and C. phryxa Aguayo-Vedia & Harvey 2006. In Colombia, C. resplendens is known from the foothills of the Amazon versant in Caquetá (Malambo et al. 2013) and Putumayo (Lynch & Duellman 1973; Ruiz-Carranza et al. 1996). The species is also known from Ecuador (Lynch & Duellman 1973) and Peru (Twomey et al. 2014). Here, we report two new records of Cochranella resplendens, extending the species distribution beyond the Amazonian lowlands into the northern Cordillera Central in Colombia. 


Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1631
Author(s):  
Walfrido Moraes Tomas ◽  
Rafael Morais Chiaravalotti ◽  
André Restel Camilo ◽  
Gabriel Oliveira de Freitas

The Scorpion mud turtle (Kinosternon scorpioides) is the chelonian species with the largest distribution range in the Neotropics. The species is reportedly distributed as two disjunct populations in South America: the Amazonian and the Chacoan populations. We present new records of K. s. scorpioides which represent an expansion of the species distribution, with the first records for the Upper Paraguay River basin, the first records for the Mato Grosso do Sul state, Brazil, as well as an evidence that the two previously documented populations area not disjunct.


2010 ◽  
Vol 42 (6) ◽  
pp. 727-737 ◽  
Author(s):  
David J. GALLOWAY

AbstractAspiciliopsis macrophthalma, Placopsis fusciduloides, P. gelidioides and P. tararuana are reported for the first time from southern South America. New records for 13 species of Placopsis in southern South America are reported, and a revised key to 22 species of Placopsis and A. macrophthalma in the region is given.


2021 ◽  
pp. 1-8
Author(s):  
Thaísa Araújo ◽  
Helena Machado ◽  
Dimila Mothé ◽  
Leonardo dos Santos Avilla

Abstract Climatic and environmental changes, as well as human action, have been cited as potential causes for the extinction of megafauna in South America at the end of the Pleistocene. Among megamammals lineages with Holarctic origin, only horses and proboscideans went extinct in South America during this period. This study aims to understand how the spatial extent of habitats suitable for Equus neogeus and Notiomastodon platensis changed between the last glacial maximum (LGM) and the middle Holocene in order to determine the impact that climatic and environmental changes had on these taxa. We used species distribution modeling to estimate their potential extent on the continent and found that both species occupied arid and semiarid open lands during the LGM, mainly in the Pampean region of Argentina, southern and northeastern Brazil, and parts of the Andes. However, when climate conditions changed from dry and cold during the LGM to humid and warm during the middle Holocene, the areas suitable for these taxa were reduced dramatically. These results support the hypothesis that climatic changes were a driving cause of extinction of these megamammals in South America, although we cannot rule out the impact of human actions or other potential causes for their extinction.


Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 430-478
Author(s):  
LURDIANA D. BARROS ◽  
MARCELO R. PAIM ◽  
VERÔNICA KREIN ◽  
VICTOR CARABAJAL ◽  
MARCELA N. BRANDÃO ◽  
...  

Several stink bugs in the subfamily Pentatominae are crop pests or have the potential to damage plants of economic importance. In the Brazilian state of Rio Grande do Sul, where agriculture plays a major role in the economy, the knowledge about pest stink bugs is fragmented and, in some instances, outdated. This work provides a summary of Pentatominae species recorded in Rio Grande do Sul feeding on the four most important grain crops for the state, i.e. soybean, rice, maize, and wheat, plus canola, an emerging crop. This survey is enhanced with new records from scientific collections, a short diagnosis for each species, distribution maps, an identification key, and carefully illustrated to allow for species recognition in the field. With this work, we aim to reunite the scattered knowledge of the group in one single revision, and provide a useful tool for identifying the pest stink bugs of Rio Grande do Sul. 


2011 ◽  
Vol 9 (3) ◽  
pp. 571-578 ◽  
Author(s):  
Oscar Lasso-Alcalá ◽  
Jorge L. S. Nunes ◽  
Carlos Lasso ◽  
Juan Posada ◽  
Ross Robertson ◽  
...  

We examined 308 specimens of the Indo-Pacific blenniid Omobranchus punctatus deposited in four museum collections, and analyzed data on their collection locations to assess its invasion on the Atlantic coast of Central and South America. This species occurs in shoreline estuarine and marine habitats in the Indo-West Pacific. Previous sampling and recent records in the Tropical West Atlantic from 1930 to 2004 produced 20 records for: Panamá, Colombia, Venezuela, Trinidad and Brazil. In this work, we provide data on 17 new records for the Gulfs of Venezuela and Paria in Venezuela, as well as four records for Maranhão and Pará states in NE Brazil. The temporal pattern of collections (1930 - 2009) and the proximity of most localities to ports and zones of ship traffic indicate that O. punctatus was initially introduced to the Atlantic by ships travelling from India to Trinidad. Within Brazil the introduction is linked to shipping connected to petroleum platforms. In Maranhão and Pará the introduction may have occurred as a result of fish sheltering in fouling on hulls of ships moving between ports around the mouth of the Amazon River. Alternatively, the spread of this species along of the American coast may reflect the expansion of the range of O. puntactus through larval dispersal in northward flowing currents. We recommend monitoring of this introduced species, and studies of its ecology in West Atlantic areas.


2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Daniel Coscarelli ◽  
Lângia C. Montresor ◽  
Philip Russo ◽  
Alan Lane de Melo ◽  
Teofânia H.D.A. Vidigal

Abstract Accurate distributional information is crucial for studies on systematics, biodiversity and conservation. To improve the knowledge regarding the geographical distribution of Omalonyx in South America, we present updated information based on data from a literature review, institutional collections and malacological surveys. All this information composed the dataset used to predict species distribution employing the Maximum Entropy Algorithm (MaxEnt). The model was run using data on species distribution, altitude and bioclimatic variables (WorldClim database). The model had consistent performance, and areas presenting similar conditions to areas where the species were recorded were considered areas of occurrence. The predicted occurrence areas included those that were already surveyed and those that are considered potential occurrence areas. The results demonstrate that the genus has widespread distribution in the Neotropical region and occurs in the tropical, temperate and arid regions of South America and Lesser Antilles. Omalonyx spp. were recorded in all South American countries and hydrographic regions. However, in some countries, there were only isolated records (ex: Colombia and Ecuador). Here, we also present the first record of Omalonyx spp. in four Brazilian States (Acre, Rondônia, Piaui, and Amapá). The genus was found in all hydrographic regions within Brazil and among 27 federative unities; it was absent from only two unities (Roraima State and Distrito Federal). This work contributes to the knowledge on Omalonyx spp. distribution and provides an important basis for the work of ecologists and taxonomists.


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