Results 81 to 90 of about 66,546 (238)

An account on the taxonomy and molecular diversity of a marine rock-pool dweller, Tigriopus fulvus (Copepoda, Harpacticoida) [PDF]

open access: yes, 2019
The copepod genus Tigriopus Norman, 1869 is distributed worldwide in coastal rock pools and it is currently considered to include 14 valid species.
Eduardo Belda   +4 more
core   +1 more source

The phylogeography and incidence of multi-drug resistant typhoid fever in sub-Saharan Africa

open access: yesNature Communications, 2018
There is paucity of data regarding the geographical distribution, incidence, and phylogenetics of multi-drug resistant (MDR) Salmonella Typhi in sub-Saharan Africa.
S. E. Park   +69 more
semanticscholar   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

open access: yesIbis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza   +4 more
wiley   +1 more source

Considerations and distributional innovations for some taxa of the genus Parapholis (Poaceae) in the Adriatic basin with special reference to Parapholis strigosa, for which a new infraspecific taxon is proposed

open access: yesNatural History Sciences
The distribution of Parapholis strigosa (Dumort.) C.E.Hubb. in the Adriatic basin has been analysed. After the investigations by Hylander and Runemark, further collections were made, particularly during the years 1991-2002, and in 2017-2018 limited to ...
Piero Cuccuini   +2 more
doaj   +1 more source

A novel taxon selection method, aimed at minimizing recombination, clarifies the discovery of a new sub‐population of Helicobacter pylori from Australia

open access: yesEvolutionary Applications, 2020
We present a novel method for taxon selection, the aim being to minimize problems arising from highly recombinant species such as Helicobacter pylori.
Binit Lamichhane   +4 more
doaj   +1 more source

Conservation of the critically endangered frog Telmatobufo bullocki in fragmented temperate forests of Chile : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Conservation Biology at Massey University, Albany, New Zealand [PDF]

open access: yes, 2015
Amphibians are currently facing several threats and are suffering severe population declines and extinction worldwide. Telmatobufo bullocki (Anura: Calyptocephalellidae) is one of the rarest and most endangered amphibian species in Chile's temperate ...
Moreno-Puig, Virginia
core  

Speciation of European bullheads (Cottus spp.): The next problem for taxonomy of northern freshwater fishes

open access: yesJournal of Fish Biology, EarlyView.
Abstract High morphological and ecological diversity displayed by European bullheads led Freyhof et al. (2005) to describe 15 nominal species. However, the basis for declaring these nominal species is contentious due to a lack of rigorous statistical analysis of morphological variations among populations, limitations in the inferences made from ...
David S. Murray   +3 more
wiley   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

First insight of genetic diversity, phylogeographic relationships, and population structure of marine sponge Chondrosia reniformis from the eastern and western Mediterranean coasts of Tunisia

open access: yesEcology and Evolution, 2022
Despite the strategic localization of Tunisia in the Mediterranean Sea, no phylogeographic study on sponges has been investigated along its shores. The demosponge Chondrosia reniformis, descript only morphologically along Tunisian coasts, was chosen to ...
Maha Moussa   +4 more
doaj   +1 more source

Landscape attributes governing local transmission of an endemic zoonosis: rabies virus in domestic dogs [PDF]

open access: yes, 2018
Landscape heterogeneity plays an important role in disease spread and persistence, but quantifying landscape influences and their scale dependence is challenging.
Biek, Roman   +7 more
core   +1 more source

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