scholarly journals Chromosome Studies of Brazilian Ferns

1975 ◽  
Vol 5 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Alice F. Tryon ◽  
Hortensia P. Bautista ◽  
Izonete da Silva Araújo
Keyword(s):  
South America ◽  
Chromosome Numbers ◽  
First Record ◽  
High Polyploid ◽  
Geographic Distributions ◽  
American Tropics ◽  
Pityrogramma Calomelanos

Abstract Chromosome numbers, habitat and general geographic distributions are reported for a sample of ferns from the vicinity of Manaus. These numbers are compared with those reported for species in other regions. The report of n=ca. 154 for Schizaea incurvata is the first record of the genus in the American tropics and the others are first counts of these species in continental South America. In Lindsaea n=42 and n=ca. 84, are somewhat lower and appear to represent a line distinct from the species of the paleotropics with n=47. In Trichomanes n=32, 64 and 128 appear to be levels of polyploidy based on X=8, while n = 72 is possibly based on X=9 and suggest possible diverse lines in the genus. Pityrogramma calomelanos with n=116 is considered as an octoploid based on X=29. Our sample covering about ten percent of the pteridophytes in the area we collected, yielded numbers ranging between n=32 and n=154, and generally appears to represent high polyploid levels.

New details of the male terminalia of Diathoneura longipennis (Malloch, 1926) (Diptera, Drosophilidae)

2019 ◽  
Vol 40 (1) ◽  
pp. 45-50
Author(s):  
Carlos R. Vilela ◽  
Gerhard Bächli
Keyword(s):  
Costa Rica ◽  
South America ◽  
Late Stage ◽  
First Record ◽  
Type Locality

The male terminalia of a non-type Diathoneura longipennis (Malloch 1926) specimen,collected in Peru, were dissected and analyzed. The aedeagus and associated sclerites were found tohave been fixed at a late stage of protrusion, resulting in a different morphology, when compared to thetwo previous publications, which were fixed at earlier stages. Consequently, additional details of certainanatomical parts were observed and a better understanding of the aedeagus protruding process was attained.Diathoneura longipennis has been previously identified in San Mateo, Alajuela, Costa Rica (type locality)and Panama, and this specimen represents the first record of this species in South America.

scholarly journals First Record ofChalcodemus bicolor(Coleoptera: Curculionidae) Enemies in South America

2017 ◽  
Vol 100 (1) ◽  
pp. 211-212
Author(s):  
P. Emilio Cedeño ◽  
N. Anjos ◽  
V. A. Costa
Keyword(s):  
South America ◽  
First Record

scholarly journals First record of the invasive bee Anthidium manicatum (Hymenoptera: Megachilidae) in Chile

2015 ◽  
pp. 1-5 ◽  
Author(s):  
Jose Miguel Montalva ◽  
Mauro Ríos ◽  
Felipe Vivallo
Keyword(s):  
South America ◽  
New Record ◽  
Ecological Niche ◽  
First Record ◽  
Ecological Niche Model ◽  
Metropolitan Region ◽  
Niche Model ◽  
Invasive Range ◽  
First Time ◽  
Anthidium Manicatum

The Palearctic wool carder bee Anthidium manicatum (Linnaeus) is recorded for the first time in Chile based on eight specimens collected on Lavandula sp. (Lamiaceae) in San Bernardo, Metropolitan Region.  This new record expands the invasive range of this species in South America, confirming previous predictions based on an ecological niche model.

scholarly journals Caryospora bigenetica (Apicomplexa: Eimeriidae) in South America: new hosts and distribution records

2015 ◽  
Vol 24 (1) ◽  
pp. 101-104 ◽  
Author(s):  
Lúcio André Viana ◽  
Kamilla Costa Mecchi ◽  
Leonardo França do Nascimento ◽  
Heitor Miraglia Herrera ◽  
Paula Helena Santa-Rita ◽  
...  
Keyword(s):  
South America ◽  
Polar Granule ◽  
First Record ◽  
Stieda Body ◽  
Mato Grosso ◽  
Sporocyst Residuum ◽  
The Family ◽  
New Hosts ◽  
Crotalus Durissus ◽  
Bothrops Moojeni

The coccidian Caryospora bigenetica was first described in the snake Crotalus horridus (Viperidae) from United States of America. This study represents the first record of the occurrence of C. bigenetica in snakes in South America. Feces were sampled between November 2013 and May 2014 from 256 wild snakes maintained in scientific breeding facilities in the states of Mato Grosso do Sul (MS; n = 214) and Rio de Janeiro (RJ; n = 42), Brazil. Caryospora bigenetica was found in 14 (5.6%) snakes, all belonging to the family Viperidae. Ten Bothrops moojeni and two Crotalus durissus from MS were infected. The coccidian was also found in one C. durissus and in one Bothrops jararacussu from the state of RJ. The oocysts were spherical with a double wall, the exterior lightly mammillated, striations apparent in transverse view, 13.0 µm (12 – 14); polar granule fixed in the internal wall. Sporocysts oval or pyriform, 10.0 × 8.0 µm (9 – 11 × 8 – 9); Stieda body discoid; sub-Stieda body present; sporocyst residuum present, formed by a group of spheroid bodies between sporozoites. This study increases the number of viperid hosts of C. bigenetica and expands the geographical distribution to South America.

scholarly journals Predicting the distribution of Omalonyx (Mollusca: Pulmonata: Succineidae) species from literature review, museum databases and new sampling efforts in Brazil

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Daniel Coscarelli ◽  
Lângia C. Montresor ◽  
Philip Russo ◽  
Alan Lane de Melo ◽  
Teofânia H.D.A. Vidigal
Keyword(s):  
Literature Review ◽  
South America ◽  
Species Distribution ◽  
First Record ◽  
Neotropical Region ◽  
Bioclimatic Variables ◽  
Distributional Information ◽  
Consistent Performance ◽  
Using Data ◽  
Hydrographic Regions

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.

scholarly journals First record of tuberculosis lesions in zooarchaeological samples of otariid pinnipeds. New aspects of the pre-european origin of human tuberculosis in South America and dissemination mechanisms of Mycobacterium pinnipedii in the Southern Hemisphere

2020 ◽  
Vol 24 (3) ◽  
pp. 227-253
Author(s):  
Ricardo Bastida ◽  
Viviana Quse ◽  
María Paz Martinoli ◽  
Atilio Francisco Zangrando
Keyword(s):  
South America ◽  
Southern Hemisphere ◽  
First Record ◽  
Tierra Del Fuego ◽  
Bone Lesions ◽  
Tuberculosis Complex ◽  
European Origin ◽  
Wild Mammals ◽  
Pinniped Species ◽  
New Hypothesis

In 2003 Mycobacterium pinnipedii was described as responsible for producing tuberculosis (TB) in living otariid pinnipeds from Argentina and Australia. It is the only member of marine origin within the Mycobacterium tuberculosis Complex (MTBC), which also affects other domestic and wild mammals, and humans. Based on several pre-Columbian records of human tuberculosis in South America, in 2010-2011 a new hypothesis about the origin of this zoonosis through otariid pinnipeds arose. In 2014, this hypothesis was confirmed based on the study of ancient DNA from three mummies (700-1,000 years BP) of the Chiribaya culture (Peru). Since there were no records of TB bone lesions in zooarchaeological samples of otariid pinnipeds from South America and the rest of the world, our study aimed at examining zooarchaeological samples of pinnipeds from coastal sites of the Beagle Channel (Tierra del Fuego, Argentina), being the oldest Túnel I (6,400-4,300 years BP). A total of 4,138 vertebrae were analyzed, of which 0.46 % showed lesions compatible with TB. In addition, we propose a new hypothesis on possible mechanisms of Mycobacterium pinnipedii dissemination that would explain the transmission routes to the different otariid pinniped species of the Southern Hemisphere. Mycobacterium pinnipedii is one of the most aggressive mycobacteria of the MTBC and of high risk for humans.

scholarly journals First record of Ramphocorixa rotundocephala Hungerford, 1927 (Hemiptera, Corixidae) for Colombia

Check List ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 503-506
Author(s):  
Mabel Giovana Pimiento-Ortega ◽  
Isabella González-Gamboa ◽  
Yimy Herrera-Martínez
Keyword(s):  
North America ◽  
South America ◽  
Procambarus Clarkii ◽  
Aquatic Insect ◽  
First Record ◽  
Adult Males ◽  
Northern South America ◽  
The Town

In the course of research conducted on Procambarus clarkii (Girard, 1852) in Colombia, Ramphocorixa rotundocephala Hungerford, 1927 was collected in Güitoque Lake, outside the town of Gachantivá, Boyacá. The species was identified from the adult males found there. This species of aquatic insect occurs mostly in Central and North America, but there are also two records from Venezuela in South America. This is the first record of this species and its genus for Colombia. This finding increases this species’ known distribution on the continent and the diversity of hemipterans in northern South America.

First record in South America of Koellikerioides internogastricus (Digenea, Didymozoidae) with new host record and pathological alterations

2009 ◽  
Vol 161 (1-2) ◽  
pp. 158-161 ◽  
Author(s):  
Márcia Cristina Nascimento Justo ◽  
Rogerio Tortelly ◽  
Rodrigo Caldas Menezes ◽  
Anna Kohn
Keyword(s):  
South America ◽  
Host Record ◽  
First Record ◽  
New Host ◽  
New Host Record

scholarly journals First record in South America of Didymosulcus palati and Didymosulcus philobranchiarca (Digenea, Didymozoidae) with new hosts records and pathological alterations

2008 ◽  
Vol 103 (2) ◽  
pp. 207-210 ◽  
Author(s):  
Márcia Cristina Nascimento Justo ◽  
Rogério Tortelly ◽  
Rodrigo Caldas Menezes ◽  
Anna Kohn
Keyword(s):  
South America ◽  
First Record ◽  
New Hosts

scholarly journals Physalaemus cicada Bokermann, 1966 (Anura: Leiuperidae): distribution extension

Check List ◽  
2012 ◽  
Vol 8 (4) ◽  
pp. 630 ◽  
Author(s):  
Ronildo Alves Benício ◽  
Guilherme Ramos Da Silva ◽  
Mariluce Gonçalves Fonseca
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
First Record ◽  
Water Bodies ◽  
Temporary Water Bodies ◽  
Temporary Water

The genus Physalaemus is widely distributed over South America, east of Andes. Physalaemus cicada belongs to the Physalaemus cuvieri group, is widely distributed over the Caatinga and is usually found in lentic and/or temporary water bodies. Herein, we extend its geographical distribution providing the first record of Physalaemus cicada for Piauí state, in the municipality of Picos.

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