Life Sciences Commons^™

Description Of Six New Cyanobacterial Species From Soil Biocrusts On San Nicolas Island, California, In Three Genera Previously Restricted To Brazil, Brian Jusko, Jeffrey R. Johansen

2024 Faculty Bibliography

As the taxonomic knowledge of cyanobacteria from terrestrial environments increases, it remains important to analyze biodiversity in areas that have been understudied to fully understand global and endemic diversity. This study was completed as part of a larger algal biodiversity study of the soil biocrusts of San Nicholas Island, California, USA. Among the taxa isolated were several new species in three genera (Atlanticothrix, Pycnacronema, and Konicacronema) which were described from, and previously restricted to, Brazil. New taxa are described herein using a polyphasic approach to cyanobacterial taxonomy that considers morphological, molecular, ecological, and biogeographical factors. Morphological data corroborated by molecular …

Susceptibility Of Wild-Caught Lutzomyia Longipalpis (Diptera: Psychodidae) Sand Flies To Insecticide After An Extended Period Of Exposure In Western São Paulo, Brazil, Mikel A. González, Melissa J. Bell, Scott A. Bernhardt, Reginaldo P. Brazil, Erin Dilger, Orin Courtenay, James G. C. Hamilton

Biology Faculty Publications

Background

In Brazil, members of the sand fly species complex Lutzomyia longipalpis transmit Leishmania infantum, a protist parasite that causes visceral leishmaniasis. Male Lu. longipalpis produce a sex pheromone that is attractive to both females and males. During a cluster randomised trial, to determine the combined effect of synthetic sex-aggregation pheromone and insecticide on Le. infantum transmission Lu. longipalpis had been continuously exposed to insecticide for 30 months. The objective of this study was to determine the effect of continuous exposure to the insecticides used in the trial on the susceptibility of Lu. longipalpis population.

Methods

During the trial …

Taxonomic Review Of The Wingmite Genus Cameronieta (Acari: Spinturnicidae) On Neotropical Bats, With A New Species From Northeastern Brazil, Juliana C. Almeida, Donald D. Gettinger, Scott Lyell Gardner

Scott L. Gardner Publications

The ectoparasitic mite genus Cameronieta (Acari: Mesostigmata: Spinturnicidae) is endemic to the New World and associated exclusively with bats of the family Mormoopidae. The genus consists of 7 species, 4 broadly distributed through the Caribbean and mainland of North and South America, and 3 species limited to the Greater Antilles archipelago. We present a brief review of the taxonomic history, redefine the genus, and consider some questions that remain concerning the biology and systematics of the group. A new species, Cameronieta almaensis n. sp., is described from the wings of Pteronotus parnellii collected from the Serra das Almas Reserve, in …

A Popular And Potentially Sustainable Fishery Resource Under Pressure-Extinction Risk And Conservation Of Brazilian Sciaenidae (Teleostei: Perciformes), Ning L. Chao, Flávia L. Frédou, Manuel Haimovici, Monica B. Peres, Beth Polidoro, Marcelo Raseira, Rosana Subira, Kent E. Carpenter

Biological Sciences Faculty Publications

Croakers (Sciaenidae) are major fishery resource in Brazil; constituting 22% of marine and 9% of freshwater fishery landings. Croakers are subject to heavy fishing pressure throughout Brazil, but habitat alteration is also an important threat to regional populations. In this regional Sciaenidae assessment, each species was analyzed for relative risk of extinction, including the identification and quantification of the impact of major threats and existing conservation measures, based on application of the Categories and Criteria of the IUCN Red List of Threatened Species. Of the 52 species of Sciaenid fishes (34 marine and 18 freshwater) present in Brazilian waters, the …

Nomenclatural Innovations In Neotropical Salicaeeae, Mac H. Alford

Faculty Publications

Macrothumia M. H. Alford is described as a new genus of Salicaceae based on Neosprucea kuhlmannii Steamer from Brazil. The deciduous perianth, papillate leaf teeth, presence of receptacular disk glands, and analyses of plastid DNA data Suggest that the new genus is more closely related to Ahernia Merrill and Pleuranthodendron. L. O. Williams than to Banara Aublet or Neosprucea Sleuruer. The monotypic genus Aphaerema Miers of Brazil and Argentina is transferred to Abatia Ruiz & Pavon, based on analyses of plastid DNA sequences and on the lack of morphological discontinuities between the genera. Because the name Abatia spicata (Turczaninow) …

Convergent Habitat Segregation Of Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae) In Southeastern Brazil And Florida, Marieta A H Braks, Ricardo Lourenco-De-Oliveira, Steven A. Juliano, Nildimar A. Honorio, L Philip Lounibos

Faculty Publications – Biological Sciences

During the rainy season of 2001, the incidence of the dengue vectors Aedes aegypti and Ae. albopictus was examined in different habitats of two cities (Rio de Janeiro and Nova Iguacu) in Rio de Janeiro State, Brazil, and in two cities (Palm Beach and Boca Raton) in Florida. Oviposition trap collections were performed in urban, suburban, and rural habitats in both areas. Our hypothesis that the abundances and frequencies of occurrence of Ae. aegypti and Ae albopictus are affected in opposite ways by increasing urbanization was only partially supported. City, habitat, and their interaction significantly affected the abundance of both …

Decoupling Between Bacteria And The Surf-Zone Diatom Asterionellopsis Glacialis At Cassino Beach, Brazil, Paulo C. Abreu, Leonardo R. Rorig, Virginia Garcia, Clarisse Odebrecht, Bopaiah Biddanda

Peer-reviewed scientific publications

The surf-zone diatom Asterionellopsis glacialis (Castracane) Round attains extremely high abundances (up to 109 cells l–1) and chl a concentrations (up to 1.5 mg chl a l–1), forming darkbrown patches in Cassino Beach, southern Brazil. Several lines of evidence from this study indicate a decoupling between A. glacialis and heterotrophic bacteria. For instance, despite the high abundance of diatoms, associated high levels of chl a and rates of dissolved organic carbon (DOC) production by A. glacialis, bacterial abundance at Cassino Beach was extremely low (0.03 to 0.7 × 106 cells ml–1) compared to the nearby estuarine waters, adjacent coastal waters …