scholarly journals A revised and updated checklist of Monogononta rotifers from Argentina

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1942 ◽  
Author(s):  
Noelia S. Ferrando ◽  
María C. Claps
Keyword(s):  
Buenos Aires ◽  
Water Bodies ◽  
Buenos Aires Province ◽  
Lotic Environments ◽  
First Time

We provide here a checklist of species of Monogononta rotifers from lentic and lotic environments in Argentina, 25 years after the initial catalogue compiled by Susana B. José de Paggi. This new inventory now includes the reports on rotifers documented in 93 studies produced after 1990. The majority of the investigations were carried out in three of the 24 Argentine provinces. In addition, the presence of 13 species in samples from three water bodies within Buenos Aires province are now cited here for the first time in Argentina. In this updated checklist, a total of 351 species are catalogued, the majority being representatives of the Lecanidae, Brachionidae, and Lepadellidae.

scholarly journals Water Footprint and Virtual Water Trade of Maize in the Province of Buenos Aires, Argentina

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1769
Author(s):  
Maria Macarena Arrien ◽  
Maite M. Aldaya ◽  
Corina Iris Rodriguez
Keyword(s):  
Buenos Aires ◽  
Water Footprint ◽  
Local Level ◽  
Virtual Water ◽  
Buenos Aires Province ◽  
Pollution Load ◽  
Basin Scale ◽  
Water Volumes ◽  
Water Scarce ◽  
First Time

Agriculture is the largest fresh water consuming sector, and maize is the most produced and consumed crop worldwide. The water footprint (WF) methodology quantifies and evaluates the water volumes consumed and polluted by a given crop, as well as its impacts. In this work, we quantified for the first time the green WF (soil water from precipitation that is evapotranspired) and the green virtual water exports of maize from Buenos Aires province, Argentina, during 2016–2017, due to the relevance of this region in the world maize trade. Furthermore, at local level, we quantified the green, blue (evapotranspired irrigation), and grey (volume of water needed to assimilate a pollution load) WF of maize in a pilot basin. The green WF of maize in the province of Buenos Aires ranged between 170 and 730 m3/ton, with the highest values in the south following a pattern of yields. The contribution of this province in terms of green virtual water to the international maize trade reached 2213 hm3/year, allowing some water-scarce nations to ensure water and water-dependent food security and avoid further environmental impacts related to water. At the Napaleofú basin scale, the total WF of rainfed maize was 358 m3/ton (89% green and 11% grey) and 388 m3/ton (58% green, 25% blue, and 17% grey) for the irrigated crop, showing that there is not only a green WF behind the exported maize, but also a Nitrogen-related grey WF.

DIFFUSE TERMITINAE NESTS SHED LIGHT ON THE AFFINITIES OF LAETOLICHNUS KWEKAI (KRAUSICHNIDAE)

Palaios ◽  
2021 ◽  
Vol 36 (3) ◽  
pp. 122-127
Author(s):  
LILIANA F. CANTIL ◽  
JORGE F. GENISE ◽  
JUAN L. FARINA ◽  
SEBASTIÁN LUPO ◽  
DARÍO PORRINI ◽  
...  
Keyword(s):  
Buenos Aires ◽  
Complex Structure ◽  
Coastal Dunes ◽  
Field Studies ◽  
Buenos Aires Province ◽  
South American ◽  
First Time ◽  
New Evidence ◽  
Semiarid Shrublands ◽  
Shed Light

ABSTRACT The insect trace fossil Laetolichnus kwekai, which is composed of a small chamber extending to slender cylinders at each end, was tentatively included in the ichnofamily Krausichnidae as termite nests. New evidence presented here provides information to validate these inferences. A more complex structure formed by interconnected Laetolichnus was recently found in the same Pliocene deposits (Laetoli, Tanzania) as the isolated specimens reported previously. Our study confirms inclusion of Laetolichnus in Krausichnidae and supports the inference that it represents a nest of a social insect. Neoichnological field studies in the coastal dunes of Buenos Aires Province, Argentina, were undertaken to refine further the nature of these affinities. Survey of the dune surface revealed abundant loose fragments of termite nests of a size and shape comparable to that of L. kwekai. The fragile nests constructed by Onkotermes brevicorniger, which are described here in detail for the first time, enable us to interpret the fossil structures. They consist of connected chambers similar to the interconnected Laetolichnus. These were frequently exposed and broken by wind action resulting in loose fragments similar to the isolated Laetolichnus. The Celliforma ichnofacies represented at Laetoli, which contains L. kwekai, indicates arid or semiarid shrublands and woodlands. The distribution of O. brevicorniger also corresponds to arid and semiarid shrublands and dry woodlands of Argentina. Although the African termite producer of L. kwekai and the South American Onkotermes would be phylogenetically unrelated, the analogous structures probably reflect convergent nesting behaviors as an adaptation to similar arid to semiarid environmental conditions.

Review of the Sarcophaginae (Diptera: Sarcophagidae) of Buenos Aires Province (Argentina), with a key and description of a new species

Zootaxa ◽  
2010 ◽  
Vol 2575 (1) ◽  
pp. 1 ◽  
Author(s):  
PABLO RICARDO MULIERI ◽  
JUAN CARLOS MARILUIS ◽  
LUCIANO DAMIÁN PATITUCCI
Keyword(s):  
Life History ◽  
New Species ◽  
Buenos Aires ◽  
Junior Synonym ◽  
Buenos Aires Province ◽  
Adult Males ◽  
Males And Females ◽  
First Time ◽  
A New Species

Thirty-nine species of Sarcophaginae are recorded from Buenos Aires Province (Argentina). A new species, Microcerella asymmetrica sp. nov., is described. Females of Oxysarcodexia bicolor Lopes, O. marina Hall, and Sarcophaga (Lipoptilocnema) koehleri Blanchard are described for the first time. Four nomenclatorial actions are reported: Sarcohelicobia elegans Blanchard is established as a new junior synonym of Nephochaetopteryx cyaneiventris Lopes, and lectotypes are designated for Oxysarcodexia delpontei Blanchard [a junior synonym of Oxysarcodexia paulistanensis (Mattos)], Sarcophaga argentina Brèthes [a junior synonym of Sarcophaga (Liopygia) argyrostoma (Robineau-Desvoidy)], and Neobellieria brethesi Blanchard [a junior synonym of Sarcophaga (Neobellieria) polistensis Hall]. Blaesoxipha (Tephromyia) hospes (Aldrich), Peckia (Euboettcheria) florencioi (Prado & Fonseca), Ravinia advena (Walker), R. aureopyga (Hall) and Sarcodexia lambens (Wiedemann) are newly recorded from Buenos Aires Province, and Udamopyga percita is newly recorded from Argentina. A key is presented to the adult males and females of 36 of the 39 species of Sarcophaginae recorded from Buenos Aires province. Notes on distribution, biology, life history and host records are also given.

scholarly journals New record for the distribution of the colonial hydroid Cordylophora caspia (Pallas, 1771) (Cnidaria: Hydrozoa) in Argentina

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1515
Author(s):  
Maria Irene Deserti ◽  
Alicia Haydeé Escalante ◽  
Fabián Horacio Acuña
Keyword(s):  
Invasive Species ◽  
New Record ◽  
Buenos Aires ◽  
External Morphology ◽  
Buenos Aires Province ◽  
Wide Range ◽  
Ecological Problems ◽  
First Time ◽  
Colonial Hydroid ◽  
Cordylophora Caspia

Cordylophora caspia is a colonial, athecate hydroid inhabiting both in freshwater and brackish habitats. Its global distribution is in part due to its ability to tolerate a wide range of salinity. It is considered an invasive species and its control is widely studied because of the industrial and ecological problems it causes in many environments. We report for the first time the occurrence of this hydrozoan in Nahuel Rucá Lake (Buenos Aires province, Argentina) with some notes on its internal and external morphology.

Local trusts and forced heirship (Commentary to the “CRO” case)  C. R. O. c/C. O. N. y otros s/nulidad de acto jurídico (22 October 2019) Court: Civil and Commercial Law, Chamber of Appeals of Necochea (Buenos Aires Province—Argentina)

2020 ◽  
Author(s):  
Nicolas Malumian
Keyword(s):  
Latin America ◽  
South America ◽  
Buenos Aires ◽  
Civil Law ◽  
Case Law ◽  
Recent Case ◽  
Buenos Aires Province ◽  
Commercial Law ◽  
Sharia Law ◽  
First Time

Abstract This recent case is a leading case relating to local trusts and forced heirship. Forced heirship is a restriction to the liberty to write a will and determine the destiny of his/her future estate by the testator. It can be found in all South America (not in Latin America from Panama to México) and in most Civil Law countries in Europe, besides similar restrictions under sharia law. The way to avoid these restrictions has been the creation of a foreign trust over foreign assets. Although authors have long analyzed whether a local trust allows the avoidance of local forced heirship rules over local assets, there has been no case law in this respect (at least since the inclusion of the trust in Argentine law in 1995). In short, this is the first time a local trust over local assets has been under the scrutiny of the courts to determine if there is a violation of forced heirship.

A new species of Hippomonavella (Bryozoa: Cheilostomata) from the Holocene and Recent of Argentina and Uruguay (Southwest Atlantic)

Zootaxa ◽  
2020 ◽  
Vol 4728 (1) ◽  
pp. 143-148 ◽  
Author(s):  
J. LÓPEZ-GAPPA ◽  
M.G. LIUZZI ◽  
C. PEREYRA
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Small Proportion ◽  
Buenos Aires ◽  
Buenos Aires Province ◽  
Southwest Atlantic ◽  
The Holocene ◽  
The Third ◽  
First Time ◽  
A New Species

Hippomonavella charrua n. sp. is introduced based on material from the continental shelf off Uruguay. Bilaminar fragments of this species were also found in mid-Holocene deposits of Destacamento Río Salado Member, Canal de las Escobas Formation (Buenos Aires Province, Argentina), ca. 6,000 yr BP. Hippomonavella charrua n. sp. resembles H. brasiliensis Ramalho, Muricy & Taylor, 2008, but differs from this species in its more triangular and protruding avicularia occurring in just a small proportion of zooids. Hippomonavella charrua n. sp. is the third species of the genus with both fossil and Recent representatives. The tatiform ancestrula and the early astogeny are described for the first time in a species of Hippomonavella. 

scholarly journals Ischnura ultima Ris, 1908 (Odonata: Coenagrionidae): new records from southern South America

Check List ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 187
Author(s):  
Javier Muzón ◽  
Alejandro Del Palacio ◽  
Lía Ramos
Keyword(s):  
South America ◽  
Buenos Aires ◽  
New Records ◽  
Buenos Aires Province ◽  
Southern South America ◽  
Endemic Areas ◽  
First Time

Ischnura ultima Ris, 1908 is recorded for the first time from Buenos Aires Province, Argentina, 750 km southeast from the southernmost previous known localities (Córdoba Province). This finding supports a stronger biogeographical relationship between the southern hills of Buenos Aires (surrounded by the Pampas lowlands) and the Monte province. In addition, this record supports the odonate endemic areas scheme previously proposed for Argentina.

scholarly journals Fossil record of a Characiform in the Monte Hermoso Formation (lower Pliocene), Buenos Aires, Argentina. Palaeobiogeographical implications

2021 ◽  
Author(s):  
Sergio BOGAN ◽  
Federico AGNOLIN ◽  
Juan Marcos MIRANDE
Keyword(s):  
Fossil Record ◽  
Buenos Aires ◽  
Indirect Evidence ◽  
Middle Pleistocene ◽  
Buenos Aires Province ◽  
Present Contribution ◽  
Southern Boundary ◽  
Pampean Region ◽  
First Time ◽  
Late Middle Pleistocene

The fossil record of fishes from the Farola de Monte Hermoso locality (lower Pliocene) in the southern Buenos Aires province, Argentina, shows an unusual composition. The locality at the southern boundary of the Brazilian Ichthyogeographic Realm. However, its fossil record is composed of fossil fishes that are not necessarily related to Brazilian lineages, namely indeterminate siluriforms, trichomycterid catfishes, and percomorphaceans. The aim of the present contribution is to describe and report for the first time isolated specimens belonging to Characidae fishes. In the Pampean region the fossil record of characids is restricted to Oligosarcus Günther, 1864 sp. from the late-middle Pleistocene. The present finding fills a temporal gap between the Paleogene and Quaternary reports and indicates that Brazilian fish lineages were present in the area by early Pliocene times, and may constitute an indirect evidence of the evolution of the basins in the southern Pampean Area.

scholarly journals Short communication: Presence of Fusarium graminearum sensu stricto associated with triticale (× Triticosecale Wittmack) in Argentina

2020 ◽  
Vol 18 (1) ◽  
pp. e10SC02
Author(s):  
María I. Dinolfo ◽  
Mauro Martínez ◽  
Eliana Castañares ◽  
Sebastián A. Stenglein
Keyword(s):  
Fusarium Head Blight ◽  
Fusarium Graminearum ◽  
Short Communication ◽  
Buenos Aires ◽  
Sensu Stricto ◽  
Buenos Aires Province ◽  
Head Blight ◽  
Field Samples ◽  
Triticosecale Wittmack ◽  
First Time

Aim of study: To report the occurrence of Fusarium graminearum sensu stricto (s.s.) on triticale grains from field samples in Argentina and the potential mycotoxin production for these isolates.Area of study: Buenos Aires province, ArgentinaMaterial and methods: A total of 40 samples from different crops (barley, rye, triticale, and wheat) showing Fusarium head blight symptoms were taken during 2017/2018 harvest season. Colonies with colour and mycelium similar to Fusarium were taken and were morphologically and molecularly identified. The potential to produce deoxynivalenol, 15-acetyl deoxynivalenol and zearalenones was determined. Also, the Koch´s postulates were used to evaluate the pathogenic capacity of the F. graminearum s.s. isolates in triticale.Main results: Two Fusarium isolates were identified morphologically as F. graminearum, which were confirmed molecularly by PCR using the specific Fg16 F/R primers pair and by sequencing red and tri101 genes. The sequences obtained were compared with those available in the NCBI database using BLAST tools, showing 99-100% homology with those belonging to F. graminearum s.s. The results demonstrated that F. graminearum s.s. isolates were pathogenic when triticale spikes were inoculated by spraying under greenhouse conditions.Research highlights: To our knowledge, this is the first time that the presence of F. graminearum s.s. is reported associated with triticale in Argentina.

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