scholarly journals Fisheries, life-history and conservation status of the catfish pirá Conorhynchos conirostris (Ostariophysi: Siluriformes) in Brazil

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Alexandre Lima Godinho ◽  
Hugo Pereira Godinho

ABSTRACT Pirá, Conorhynchos conirostris (Valenciennes, 1840), a large migratory catfish endemic to the São Francisco River (SFR), is listed as threatened in the red lists of both Brazil and the state of Minas Gerais. Although fishing for pirá has been prohibited, it is still an important fishery resource, particularly in the middle SFR. We used historical and current occurrence and abundance data regarding pirá to determine if it meets the IUCN criteria of a threatened species. Pirá occurs in the main course of the SFR as well as in its major tributaries. Unlike the most well-known migratory fishes of the SFR, pirá does not use floodplain lakes as nurseries. In the first half of the 20th century, pirá occurred from the upper to the lower SFR. Currently, it is most abundant in the middle SFR, and is rare in the upper SFR and even rarer in the sub-middle SFR. Pirá has not been captured in the lower SFR since around the mid-1980’s. Despite the reduction in its geographic distribution, we did not find evidence to justify considering pirá as threatened. Thus, we recommend that it be removed from the red lists of Brazil and the state of Minas Gerais.

Phytotaxa ◽  
2013 ◽  
Vol 135 (1) ◽  
pp. 43 ◽  
Author(s):  
MARCOS SOBRAL

Eight Brazilian Atlantic Rainforest species are described and illustrated: Calyptranthes santalucia, Eugenia barrana, E. culicina, E. lacistema, E. viscacea, Myrcia basicordata, M. monoclada and Myrciaria evanida. Calyptranthes santalucia, from the state of Espírito Santo, is related to C. brasiliensis, differing for its acute leaves and pauciflorous inflorescences; Eugenia barrana, from the states of Minas Gerais and Bahia, is related to E. chlorophylla, but has smaller leaves and larger flowers; Eugenia culicina, from the state of Pernambuco, is related to E. roseiflora, differing through the smaller petioles, adaxially sulcate lateral veins, pilose flowers and larger fruits; Eugenia lacistema, from Bahia, is related to E. platyphylla, differing by the inflorescences with lignified bracts and smaller pedicels;  Eugenia viscacea, from Bahia, is related to E. ellipsoidea, differing through the inflorescences with densely imbricate bracts and smaller pedicels; Myrcia basicordata, from Espírito Santo, is related to M. pubescens, but presents applanate glabrous twigs and glabrous and sessile leaves with cordate base; Myrcia monoclada, from Bahia, is related to M. riodocensis, but has larger leaves and pentamerous flowers, and Myrciaria evanida, from Espírito Santo and Minas Gerais, resembles M. floribunda, differing by the vanishing secondary veins and smaller flowers. The new species are also evaluated as to their conservation status according to IUCN criteria. Additionally, the synonymization of Eugenia apiocarpa under E. astringens and of Eugenia pleurantha under E. umbellata and the lectotypification of Eugenia ellipsoidea are proposed.


Check List ◽  
2013 ◽  
Vol 9 (4) ◽  
pp. 847 ◽  
Author(s):  
Marco Antônio de Amorim Peixoto ◽  
João Victor Andrade Lacerda ◽  
Carla Da Silva Guimarães ◽  
Bruno Teixeira ◽  
Emanuel Teixeira Da Silva ◽  
...  

Myersiella microps (Duméril and Bibron, 1841) is considered data deficient (DD) in the State of Minas Gerais, Southeastern Brazil. Herein we provide new records and a geographic distribution map of this Poorly known species. These data provide valuable information for a conservation status assessment of M. microps.


2017 ◽  
Vol 57 (1) ◽  
pp. 1
Author(s):  
Adriana Restrepo ◽  
Julian A. Velasco ◽  
Juan M. Daza

IUCN Red Lists have been a valuable tool to prioritize conservation plans in endemic neotropical frogs. However, many areas in this region are poorly known in terms of their diversity and endemism. Based on examined museum specimens of the threatened species Pristimantis penelopus we revised its geographic distribution and determined the habitat suitability using niche modeling techniques. Using a mitochondrial fragment of COI gene, we determine the phylogenetic position and the extent of the genetic variation across its distribution in Colombia. We present the first records of P. penelopus for the Cordillera Oriental, the western versant of Cordillera Occidental and the northern portion of the Cauca river basin. Based on the molecular phylogenetic analysis, Pristimantis penelopus belongs to the P. ridens series sensu Padial et al. (2014). The mean of intraspecific genetic variation is 2.1% and the variation among population ranges between 2.3 and 3.5%. The genetic distance between the western populations and the Magdalena Valley populations suggests a potential phylogeographic break in northwestern Antioquia. We expand the realized distribution by 258 kilometers north, 200 km east and 223 km northwest. Based on our results and according to the IUCN criteria we propose a new category for the species and highlight the need to increase the surveys in poorly known regions to better understand the geographic distribution and conservation status of listed species.


Check List ◽  
2011 ◽  
Vol 7 (2) ◽  
pp. 128
Author(s):  
Emanuel Teixeira da Silva ◽  
Paula Leão Ferreira ◽  
Patrícia Da Silva Santos ◽  
Renato Neves Feio

Herein, we report new records of the treefrogs Dendropsophus anceps and Itapotihyla langsdorffii for the state of Minas Gerais, southeastern Brazil. Both species are known from several localities in the Atlantic Rainforest domain, but their presence in state of Minas Gerais is restricted to few localities. The present records reinforce the importance of field surveys for improving the knowledge about the geographic distribution and conservation status of Brazilian amphibians.


Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1296 ◽  
Author(s):  
Eduardo P. Fernandez ◽  
Miguel Avila Moraes ◽  
Gustavo Martinelli

Glaziophyton Franch. is a monotypic bamboo genus (G. mirabile Franch.), narrowly endemic to the Campos de Altitude in the state of Rio de Janeiro, southeast Brazil. Five occurrence sites are known, but one is considered locally extinct and, at two sites, the species has not been recollected for several years. Due to its restricted geographical range G. mirabile is classified as a threatened species. In this study we report two new populations. These new records might change the species conservation status and the category of its extinction risk.


2002 ◽  
Vol 50 (1) ◽  
pp. 1 ◽  
Author(s):  
Mark A. Burgman

Despite the fact that the most changes in lists of threatened species reflect changes in knowledge rather than changes in conservation status, the lists continue to provide social and legal mandates for conservation; they are used to report on the state of the environment and to guide the allocation of scarce resources. There is a substantial under-representation of non-vascular species in threatened plant lists, reflected in an absence of documented extinctions among fungi and algae. Turnover in the composition of extinct flora lists in Australia suggests that the lists of threatened species may not be sufficiently reliable to form the basis for reporting on the state of the environment. They are of limited use in distinguishing between levels of threat and may not be a reliable guide for the allocation of scarce conservation resources among plant species. Systems for listing threatened species create a feedback loop, responsive to the subjective preferences of scientists, largely unresponsive to underlying true threats, self-perpetuating and accentuating bias with each iteration. Other tools, including formal decision approaches and the acquisition of new kinds of data, are needed to fill the roles.


Phytotaxa ◽  
2021 ◽  
Vol 494 (1) ◽  
pp. 129-136
Author(s):  
GENILSON ALVES DOS REIS E SILVA ◽  
JIMI NAOKI NAKAJIMA

A new species, Calea arachnoidea, which belongs to Calea sect. Meyeria, is hereby described and illustrated. This species occurs in the Serra Negra region, located in the southern portion of the “Zona da Mata” in the state of Minas Gerais, southeastern Brazil. Calea arachnoidea resembles C. quadrifolia, C. heteropappa and C. semirii, and its relationships with these species are discussed and an identification key for the species of C. sect. Meyeria in the state of Minas Gerais is provided. Additionally, photographs, a distribution map, comments about habitat and conservation status are provided.


Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 394 ◽  
Author(s):  
Patrícia Da Silva Santos ◽  
Emanuel Teixeira da Silva ◽  
Bruno Henrique Barbosa Felhberg ◽  
Marcus Thadeu Teixeira Santos ◽  
Paulo Christiano De Anchietta Garcia

In this study we report the first record of the giant torrent frog Megaelosia apuana in the state of Minas Gerais, southeastern Brazil. The finding of this species at Reserva Particular do Patrimônio Natural (RPPN) Mata do Sossego, municipality of Simonésia, east of Minas Gerais extends its geographic distribution by 120 km from the type locality, and 45 km northwest from its westernmost known record. A geographic distribution map is presented. 


Zootaxa ◽  
2018 ◽  
Vol 4422 (1) ◽  
pp. 1 ◽  
Author(s):  
RICARDO PALACIOS-AGUILAR ◽  
OSCAR FLORES-VILLELA

We present an updated checklist of the amphibians and reptiles for the state of Guerrero, Mexico. This list is based on bibliographic records, the revision of scientific collections and the authors’ field notes. The herpetofauna of the state includes 259 species (78 amphibians, 181 reptiles), of which three are introduced. The conservation status of all native species was assessed using three independent systems (NOM-059, IUCN and EVS). Finally, the geographic distribution of amphibians and reptiles is discussed in the context of both the biogeographic provinces within the state and the influence of road location on specimen collection patterns.  


2021 ◽  
Vol 46 (4) ◽  
pp. 1011-1015
Author(s):  
Priscila Orlandini ◽  
Inês Cordeiro ◽  
Jone Clebson Ribeiro Mendes ◽  
Antônio Campos-Rocha ◽  
Vinicius Castro Souza

Abstract— A new species of Phyllanthus with phylloclades endemic to the State of Bahia is described here. Phyllanthus dracaenoides can be recognized for its peculiar habit that resembles a species of Dracaena, a very unusual height of up to 7 m, the plagiotropic phylloclades spirally arranged, and its vermiform cincinni. Notes on its habitat, taxonomic affinity, conservation status, geographic distribution, illustrations, and photographs are provided.


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