Species concepts and species delimitation.
- K. de Queiroz
- Biology, Environmental ScienceSystematic Biology
A unified species concept can be achieved by treating existence as a separately evolving metapopulation lineage as the only necessary property of species and the former secondary species criteria as different lines of evidence relevant to assessing lineage separation.
The genome of the green anole lizard and a comparative analysis with birds and mammals
Comparative gene analysis shows that amniote egg proteins have evolved significantly more rapidly than other proteins, and an anole phylogeny resolves basal branches to illuminate the history of their repeated adaptive radiations.
Ernst Mayr and the modern concept of species
- K. de Queiroz
- BiologyProceedings of the National Academy of Sciences…
- 25 April 2005
Reconciliation of incompatible species definitions and the development of a unified species concept require rejecting the interpretation of various contingent properties of metapopulation lineages, including intrinsic reproductive isolation in Mayr's definition, as necessary properties of species.
Niche lability in the evolution of a Caribbean lizard community
It is found that evolutionary divergence overcomes niche conservatism: closely relatedspecies are no more ecologically similar than expected by random divergence and some distantly related species are Ecologically similar, leading to a community in which the relationship between ecological similarity and phylogenetic relatedness is very weak.
A Phylogenetic, Biogeographic, and Taxonomic study of all Extant Species of Anolis (Squamata; Iguanidae)
A phylogenetic analysis of all 379 extant species of Anolis, with new phylogenetic data for 139 species including new DNA data for 101 species is presented, using the resulting estimates as a basis for defining anole clade names under the principles of phylogenetic nomenclature and to examine the biogeographic history of anoles.
Toward a phylogenetic system of biological nomenclature.
Species names in phylogenetic nomenclature.
Here, 13 methods for naming species in the context of phylogenetic nomenclature are contrasted with each other and with Linnaean binomials and a fundamental dichotomy among the proposed methods distinguishes those that retain the entire binomial of a preexisting species name fromThose that retain only the specific epithet.
Different species problems and their resolution.
- K. de Queiroz
- Environmental ScienceBioessays
The proposals in question provide the opportunity for biology to move beyond debates about the definition of the species category and focus on estimating the boundaries and numbers of species as well as studying the diverse processes involved in their origin and persistence.
Partial characterization and anticoagulant activity of a heterofucan from the brown seaweed Padina gymnospora.
- T. M. Silva, L. G. Alves, E. L. Leite
- ChemistryBrazilian journal of medical and biological…
- 1 April 2005
Structural analysis indicates that 3-O-sulfation at C-3 of 4-alpha-L-fucose 1-> units is responsible for the anticoagulant activity of the polymer, indicating that the brown algae Padina gymnospora contain different fucans.
Phenetic Clustering in Biology: A Critique
Phenetic clustering, the forming of hierarchical nonoverlapping groups strictly according to degree of similarity, has serious shortcoming as it is commonly used in biology and rests on a questionable assumption of correspodence between similarity and recency of common ancestry.