scholarly journals Geographical distribution of Austrolebias monstrosus (Huber, 1995), A. elongatus (Steindachner, 1881) and A. vandenbergi (Huber, 1995) (Teleostei: Cyprinodontiformes), with comments on the biogeography and ecology of Rivulidae in Pampasic and Chaco floodplains

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1945 ◽  
Author(s):  
Felipe Alonso ◽  
Pablo Andrés Calviño ◽  
Guillermo Enrique Terán ◽  
Ignacio García
Keyword(s):  
Geographical Distribution ◽  
New Record ◽  
Chaco Region ◽  
Entre Rios ◽  
Semi Arid ◽  
Arid Chaco

We present a new record for Austrolebias elongatus from Gualeguaychú, in Entre Ríos province, Argentina, based on new fieldwork and a revision of material deposited in national ichthyological collections. We also give evidence on the erroneous records of Austrolebias monstrosus and A. vandenbergi from Ituzaingó, Corrientes province, as well as present additional records from Salta province for those species. Material previously determined as A. elongatus from Santiago del Estero is attributed to A. monstrosus. We restrict the distribution of these two species to Semi-arid Chaco Region in Argentina, Paraguay and Bolivia.

scholarly journals Paleoenvironmental reconstruction of the semi-arid Chaco region of Argentina based on multiproxy lake records over the last six hundred years

2019 ◽  
Vol 524 ◽  
pp. 85-100
Author(s):  
Flavio Cesar Speranza ◽  
Santiago Giralt ◽  
Liliana Concepción Lupo ◽  
Julio José Kulemeyer ◽  
Elizabeth de los Ángeles Pereira ◽  
...  
Keyword(s):  
Paleoenvironmental Reconstruction ◽  
Chaco Region ◽  
Semi Arid ◽  
Arid Chaco

Land-use change affects the diversity and functionality of soil bacterial communities in semi-arid Chaco region, Argentina

2022 ◽  
Vol 172 ◽  
pp. 104362
Author(s):  
Emilce Viruel ◽  
Cecilia A. Fontana ◽  
Edoardo Puglisi ◽  
Jose A. Nasca ◽  
Natalia R. Banegas ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Bacterial Communities ◽  
Soil Bacterial Communities ◽  
Chaco Region ◽  
Soil Bacterial ◽  
Semi Arid ◽  
Arid Chaco

Una nueva localidad almeriense de Phyllariopsis purpurascens (C. Agardh) Henry et South

2005 ◽  
Vol 30 ◽  
pp. 176
Author(s):  
Diego Moreno ◽  
Julio De la Rosa ◽  
Pedro Sánchez Castillo ◽  
Antonio Flores-Moya
Keyword(s):  
Iberian Peninsula ◽  
Geographical Distribution ◽  
New Record

A new record of Phyllariopsis purpurascens (C. Agardh) Henry et South from AlmeríaPalabras clave. Phyllariopsis, corología, Península Ibérica.Key words. Phyllariopsis, geographical distribution, Iberian Peninsula.

Agriculture expansion and deforestation in seasonally dry forests of north-west Argentina

2005 ◽  
Vol 32 (2) ◽  
pp. 140-148 ◽  
Author(s):  
H. RICARDO GRAU ◽  
N. IGNACIO GASPARRI ◽  
T. MITCHELL AIDE
Keyword(s):  
Global Trends ◽  
North West ◽  
Conservation Policies ◽  
Seasonally Dry ◽  
The North ◽  
Agriculture Expansion ◽  
Soybean Price ◽  
Different Levels ◽  
Semi Arid ◽  
Arid Chaco

In Argentina, deforestation due to agriculture expansion is threatening the Semi-arid Chaco, one of the largest forested biomes of South America. This study focuses on the north-west boundary of the Argentine Semi-arid Chaco, where soybean is the most important crop. Deforestation was estimated for areas with different levels of soil and rainfall limitation for agriculture between 1972 and 2001, with a finer analysis in three periods starting in 1984, which are characterized by differences in rainfall, soybean price, production cost, technology-driven yield and national gross domestic product. Between 1972 and 2001, 588 900 ha (c. 20% of the forests) were deforested. Deforestation has been accelerating, reaching >28 000 ha yr−1 after 1997. The initial deforestation was associated with black bean cultivation following an increase in rainfall during the 1970s. In the 1980s, high soybean prices stimulated further deforestation. Finally, the introduction of soybean transgenic cultivars in 1997 reduced plantation costs and stimulated a further increase in deforestation. The domestic economy had little association with deforestation. Although deforestation was more intense in the moister (rainfall >600 mm yr−1) areas, more than 300 000 ha have already been deforested in the drier areas, suggesting that climatic limitations are being overcome by technological and genetic improvement. Furthermore, more than 300 000 ha of forest occur in sectors without major soil and rainfall limitations. If global trends of technology, soybean markets and climate continue, and no active conservation policies are applied, vast areas of the Chaco will be deforested in the coming decades.

scholarly journals Geographical distribution potential of Atta vollenweideri Forel in the province of Entre Rios (Argentina)

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Julián Alberto Sabattini ◽  
Hugo Raul Zerda ◽  
Rafael Alberto Sabattini ◽  
Cristian Savino
Keyword(s):  
Geographical Distribution ◽  
Distribution Potential ◽  
Entre Rios

scholarly journals The first country record of the Mexican Blind Snake, Anomalepis mexicanus Jan, 1860 (Serpentes, Anomalepididae), in Colombia

Check List ◽  
2018 ◽  
Vol 14 (6) ◽  
pp. 1047-1052
Author(s):  
Juliett M. González-Carvajal ◽  
Guido Fabian Medina-Rangel ◽  
Luis Eduardo Rojas-Murcia
Keyword(s):  
Geographical Distribution ◽  
New Record ◽  
Single Specimen ◽  
Straight Line

We report the first Colombian record of the Blind Snake Anomalepis mexicanus Jan, 1860, based on a single specimen from Cantagallo municipality, department of Bolívar. Our new record fills a large gap and extends this species’ geographical distribution by approximately 630 km in a straight line east-southeast from its nearest previously known Panamanian locality, and approximately 1295 km in a straight-line north-northeast from its nearest previously known Peruvian locality. 

Larval Taxonomy and Distribution of Genus Hydropsyche (Trichoptera: Hydropsychidae) in Northwestern Algeria

Zootaxa ◽  
2021 ◽  
Vol 4915 (4) ◽  
pp. 481-505
Author(s):  
SOUMYA BEMMOUSSAT-DEKKAK ◽  
KARIMA ABDELLAOUI-HASSAINE ◽  
MICHEL SARTORI ◽  
JOHN C. MORSE ◽  
CARMEN ZAMORA-MUÑOZ
Keyword(s):  
Geographical Distribution ◽  
North Africa ◽  
New Record ◽  
Taxonomic Key

The main purpose of our paper is to document genus Hydropsyche (Trichoptera: Hydropsychidae) in northwestern Algeria and to provide the larval descriptions of the species set. Larvae, pupae, and imagines were collected from 14 sampling sites over a five-year period (2014–2019). Eight Hydropsyche species have been identified, with Hydropsyche siltalai being a new record for Algeria and North Africa, and Hydropsyche pellucidula a new record for Algeria. A comparison of our checklist with those of the Moroccan Rif and Europe is provided, as well as the geographical distribution of each species. This Algerian Hydropsyche species revision provides precise and reliable taxonomic characters for distinguishing larvae of the species, and a taxonomic key is proposed for their identification. In addition, information regarding their distribution is included. 

scholarly journals Bombacoideae, Byttnerioideae, Grewioideae and Helicterioideae (Malvaceae s.l.) in the Raso da Catarina Ecoregion, Bahia, Brazil

2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Jéssica Batista Lima ◽  
Massimo Giuseppe Bovini ◽  
Adilva de Souza Conceição
Keyword(s):  
Geographical Distribution ◽  
New Record ◽  
Identification Key ◽  
Reproductive Phenology ◽  
Floristic Survey ◽  
Taxonomic Treatment ◽  
Caatinga Biome

Abstract: This work presents a floristic survey of the subfamilies Bombacoideae, Byttnerioideae, Grewioideae and Helicterioideae (Malvaceae s.l.) in the Raso da Catarina Ecoregion (RCE), Bahia, Brazil. The samples analyzed were collected from September 2013 to May 2015. The analyses were supplemented with dried collections kept in the herbaria: ALCB, HRB, HUEFS, HUNEB, HST, IPA, PEUFR, R and RB. The identifications were based mainly on specialized bibliographies, protologues, types and herbaria collections. Ten genera and 22 species of the subfamilies were recorded, nine endemic to Brazil. Waltheria L. was the most representative genus with five species, followed by Ceiba Mill. and Melochia L. with three species each, Helicteres L., Luehea Willd., Pachira Aubl. and Pseudobombax Dugand presented two species each and other genera were represented by one species each. Among the species recorded, Luehea candicans Mart. represents a new record for the Caatinga biome. The species most commonly found in the study area were Helicteres velutina K.Schum., Melochia tomentosa L., Waltheria brachypetala Turcz., W. indica L. and W. rotundifolia Schrank. The taxonomic treatment includes identification key, descriptions, illustrations, photos, geographical distribution, reproductive phenology and comments about all studied species. Keywords: biodiversity, Caatinga, morphology, semiarid, taxonomy.

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