Results 21 to 30 of about 69,851 (348)
Delimiting Species in Recent Radiations [PDF]
Systematic Biology, 2007 Despite considerable effort from the systematics community, delimiting species boundaries in recent radiations remains a daunting challenge. We argue that genealogical approaches, although sometimes useful, may not solve this important problem, because recently derived species often have not had sufficient time to achieve monophyly. Instead, we suggest
H Bradley, Shaffer, Robert C, Thomson
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PPNID : a reference database and molecular identification pipeline for plant-parasitic nematodes [PDF]
, 2020 Motivation: The phylum Nematoda comprises the most cosmopolitan and abundant metazoans on Earth and plant-parasitic nematodes represent one of the most significant nematode groups, causing severe losses in agriculture.
Bert, Wim +5 more
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Ecology and Evolution, 2021 DNA barcoding and DNA‐based species delimitation are major tools in DNA taxonomy. Sampling has been a central debate in this context, because the geographical composition of samples affects the accuracy and performance of DNA barcoding.
Daniel Lukic +4 more
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Species Delimitation and Global Biosecurity [PDF]
Evolutionary Bioinformatics, 2011 Species delimitation directly impacts on global biosecurity. It is a critical element in the decisions made by national governments in regard to the flow of trade and to the biosecurity measures imposed to protect countries from the threat of invasive species.
Boykin, LM +3 more
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Integrative species delimitation helps to find the hidden diversity of the leaf-litter frog Ischnocnema manezinho (Garcia, 1996) (Anura, Brachycephalidae), endemic to the southern Atlantic Forest [PDF]
PeerJ, 2023 Background The delimitation of cryptic species is a challenge for biodiversity conservation. Anurans show high cryptic diversity levels, and molecular species delimitation methods could help identify putative new species.
Caroline Batistim Oswald +4 more
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Species Delimitation with Gene Flow [PDF]
Systematic Biology, 2016 Species are commonly thought to be evolutionarily independent in a way that populations within a species are not. In recent years, studies that seek to identify evolutionarily independent lineages (i.e., to delimit species) using genetic data have typically adopted multispecies coalescent approaches that assume that evolutionary independence is formed ...
Nathan D, Jackson +3 more
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BMC Ecology and Evolution, 2022 Background Delimiting species across a speciation continuum is a complex task, as the process of species origin is not generally instantaneous. The use of genome-wide data provides unprecedented resolution to address convoluted species delimitation cases,
Victor Julio Piñeros +5 more
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European Journal of Taxonomy, 2022 Initial analyses of DNA barcode data from Norwegian populations attributed to the water mite Lebertia porosa Thor, 1900 revealed large genetic divergence and potentially cryptic species-level diversity.
Valentina Tyukosova +3 more
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Limitations of Species Delimitation Based on Phylogenetic Analyses: A Case Study in the Hypogymnia hypotrypa Group (Parmeliaceae, Ascomycota). [PDF]
PLoS ONE, 2016 Delimiting species boundaries among closely related lineages often requires a range of independent data sets and analytical approaches. Similar to other organismal groups, robust species circumscriptions in fungi are increasingly investigated within an ...
Xinli Wei +7 more
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Using phylogenetic and coalescent methods to understand the species diversity in the Cladia aggregata complex (Ascomycota, Lecanorales). [PDF]
PLoS ONE, 2012 The Cladia aggregata complex is one of the phenotypically most variable groups in lichenized fungi, making species determination difficult and resulting in different classifications accepting between one to eight species.
Sittiporn Parnmen +5 more
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