Results 31 to 40 of about 4,051 (172)

Cross-border malaria in the triple border region between Brazil, Venezuela and Guyana [PDF]

open access: yesScientific Reports, 2022
AbstractThe state of Roraima, in Brazil, has recently seen an increase in the number of reported Plasmodium falciparum infections believed to be imported from neighboring countries. The objective of this study was to determine the prevalence of Plasmodium species among patients attending malaria health posts in Roraima and quantify the infections ...
Rispah Abdallah   +6 more
openaire   +3 more sources

Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)

open access: yesZooKeys, 2018
Recent collecting efforts in the Neotropics have led to the discovery of numerous new species and lineages of aquatic beetles. Here, three new genera are described to accommodate fifteen new species of water scavenger beetles of the subfamily ...
Jennifer C. Girón   +1 more
doaj   +3 more sources

Revision of the water scavenger beetle genus Notionotus Spangler, 1972 in the Neotropical Region (Coleoptera, Hydrophilidae, Enochrinae) [PDF]

open access: yesZooKeys, 2022
The Neotropical species of the water scavenger beetle genus Notionotus Spangler, 1972 are revised using an integrative taxonomic approach combining morphology with DNA sequence data from two genes.
Liza M. González-Rodríguez   +1 more
doaj   +3 more sources

Revision of the Neotropical water scavenger beetle genus Tobochares Short & García, 2007 (Coleoptera, Hydrophilidae, Acidocerinae)

open access: yesZooKeys, 2017
The genus Tobochares Short & García, 2007 is revised. A combination of morphological and molecular data provide support for ten distinct species. Five new species are described: T. canaliculatus sp. n. (Venezuela), T. canthus sp. n.
Alex T. Kohlenberg   +1 more
doaj   +3 more sources

Revision of the Neotropical caddisfly genus Itauara Müller, 1888 (Trichoptera, Glossosomatidae)

open access: yesZooKeys, 2011
 Systematics of the genus Itauara Müller, 1888 are reviewed. A generic diagnosis, illustrations, and descriptions are provided for males. The genus can be identified by several features of the male genitalia including an extremely reduced ...
Desiree Robertson, Ralph Holzenthal
doaj   +1 more source

Genetic Connectivity of the West Indian Manatee in the Southern Range and Limited Evidence of Hybridization With Amazonian Manatees

open access: yesFrontiers in Marine Science, 2021
The Antillean subspecies of the West Indian manatee is classified as endangered by the International Union for the Conservation of Nature (IUCN) Red List.
Fábia de Oliveira Luna   +10 more
doaj   +1 more source

New species of Bidessonotus Régimbart, 1895 with a review of the South American species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini)

open access: yesZooKeys, 2016
The South American species of the New World genus Bidessonotus Régimbart, 1895 are reviewed with descriptions of seven new species. This brings the total number of valid Bidessonotus species to 37, making it the largest Bidessini genus in the New World ...
Kelly Miller
doaj   +3 more sources

Range extension of Diclidurus scutatus (Chiroptera, Emballonuridae) to southwestern Amazonia [PDF]

open access: yesActa Amazonica, 2017
Diclidurus scutatus is an aerial insectivore bat endemic of South America and considered rare throughout its distribution range. We present the first record of this species in Rondônia State, northern Brazil, expanding its distribution more than 1000 km ...
Roberto Leonan Morim NOVAES   +2 more
doaj   +1 more source

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

open access: yesNordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes   +4 more
wiley   +1 more source

Cladocerans (Crustacea, Branchiopoda) from Mount Roraima, Venezuela, with new records for this country and the Neotropical region [PDF]

open access: yesActa Limnologica Brasiliensia
Aim Venezuela, located in the north of South America, has ecosystems with great potential for diversity. Among these ecosystems, Mount Roraima located at the border of Venezuela, Brazil, and Guyana, stands out.
Vinícius Vilela Carvalho   +3 more
doaj   +1 more source

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