Populations, Genetic Variation, and the Delimitation of Phylogenetic Species

Davis, Jerrold I.; Nixon, Kevin C.

doi:10.2307/2992584

Cited by 214 publications

(274 citation statements)

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“…Nevertheless, given the extensive discussion of the application of monophyly criteria to species questions (e.g. Wiley 1981, De Queiroz and Donoghue 1990, Davis and Nixon 1992, Graybeal 1995, Wiley and Mayden 2000, as well as the complications that they introduce into real-world applications, we were less concerned about their exclusion. The ESC, which does not specify a criterion of monophyly, avoids this complication, but otherwise coincides fairly closely with the PSC .…”

Section: Chlorospingusmentioning

confidence: 99%

An alternative species taxonomy of the birds of Mexico

Navarro‐Sigüenza

Peterson

2004

Biota Neotrop.

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Extensive debate has surrounded the application of alternative species concepts in Ornithology. The biological species concept (BSC) and phylogenetic species concept (PSC) have typically been set in opposition, with extensive debate on the relative merits of each. An alternative is the evolutionary species concept (ESC), which offers a perspective similar to that of the PSC, yet with several significant differences. To date, no major avifauna has been examined and compared among taxonomic viewpoints. Herein, we develop an alternative phylogenetic/evolutionary species taxonomy to the current BSC treatment for the more than 1000 bird species of Mexico. A total of 135 biological species was divided to produce a total of 323 phylogenetic/evolutionary species, 122 of which represent "new" endemic forms in Mexico. Key words: Species concepts, avifauna, Mexico ResumenGran debate ha rodeado la aplicación de conceptos de especie alternativos en la Ornitología. El concepto biológico de especie (CBE) y el concepto filogenético de especie (CFE) han estado típicamente en contraposición, existiendo mucha discusión acerca de las ventajas relativas de cada uno. Una alternativa es el concepto evolutivo de especie (CEE), que ofrece una perspectiva similar a la del CFE, aunque con algunas diferencias importantes. A la fecha, no se ha examinado y comparado alguna avifauna regional desde el punto de vista del CBE y de los conceptos alternativos. En este trabajo desarrollamos una taxonomía alternativa a la existente en la actualidad bajo el CBE para las más de 1000 especies de aves de México. Un total de 135 especies biológicas fue dividido hasta producir un total de 323 especies filogenético/evolutivas, 122 de las cuales son "nuevas" formas endémicas al país. Mayr and Short 1970;AOU 1983AOU , 1998, alternative species concepts have been introduced to avian taxonomy only relatively recently (Cracraft 1983). Specifically, the phylogenetic species concept (PSC) was introduced to ornithology in a series of controversial papers (Cracraft 1983, McKitrick and Zink 1988, Zink and McKitrick 1995, sparking acrimonious discussion and debate (e.g. Amadon and Short 1992). In contrast to the BSC's emphasis on reproductive isolation, the PSC identifies as species taxa those populations that are monophyletic lineages made diagnosable by the presence of unique characters or character combinations. PalabrasAn alternative concept that has been all but ignored in ornithology (see Prum 1994) is the evolutionary species concept (ESC). Originally proposed by Simpson (1961), this concept was revisited by Wiley (1978), and discussed in detail in more recent contributions (Wiley and Mayden 2000). The ESC focuses on broad issues of theoretical importance: lineage independence, "identity," and evolutionary tendencies. These issues relate to those on which the BSC and PSC focus-lineage independence refers loosely to reproductive isolation, and identity to diagnosability. Evolutionary tendencies focus on the true Grail of an understanding of species-a...

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Section: Chlorospingusmentioning

confidence: 99%

An alternative species taxonomy of the birds of Mexico

Navarro‐Sigüenza

Peterson

2004

Biota Neotrop.

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“…Confidence of nodes in the tree was tested by calculating decay indices as the number of extra steps necessary for a monophyletic dade not to be unequivocally supported in the strict consensus tree (Bremer, 1988). Population aggregation analysis was performed according to Davis & Nixon (1992). Total substitution rates were calculated using the Kimura 2-parameter model (Kimura, 1980).…”

Section: Samplingmentioning

confidence: 99%

“…Population aggregation analysis is a method designed to diagnose phylogenetic species (Davis & Nixon, 1992). If no character distinguishes two local populations, these belong to the same species.…”

Section: Population Aggregation Analysismentioning

confidence: 99%

“…It is also possible, under the assumptions of the phylogenetic species concept (Davis & Nixon, 1992) where a species is defined as a population or group of populations diagnosable by a unique combination of character states, to carry out systematic analyses using these markers. Thus, DNA sequences can be used in the phylogenetic analysis of closely related species or populations to identify shared derived characters using individuals as terminal units in the analysis (Vrana & Wheeler, 1992).…”

Section: Introductionmentioning

confidence: 99%

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Mitochondrial DNA sequence variation and phylogeography of Pimelia darkling beetles on the Island of Tenerife (Canary Islands)

et al. 1996

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Four morphological taxa of the beetle genus Pimelia (Coleoptera, Tenebrionidae) are known to exist on the Atlantic island of Tenerife. We have obtained DNA sequences for 61 individuals from these taxa across the island for a 200 bp long fragment of the mitochondrial COl gene. In addition, a restriction site polymorphism in the nuclear rRNA ITS-i sequence was identified and screened in a sample of these individuals using the enzyme 4n21. The results were analysed using approaches which allow inferences to be made about the population genetic structure and the mitochondrial genealogy of these closely related beetles. The mtDNA haplotype distribution and the estimates of sequence divergence revealed the presence of two ancient mtDNA lineages which coincide with the disjunct volcanic evolution of the island. The ITS-i polymorphism was found to be diagnostic of these two lineages. However, the morphological and mitochondrial phylogenies were found to be discordant. We argue that this is possibly the result of rapid morphological change, produced by selection in different habitats, which has been recently superimposed on an older mitochondrial DNA divergence.

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“…In regard to the PSC, definition is the most commonly accepted: 'the smallest diagnosable cluster of individual organisms within which there is a parental pattern of ancestry and descent'. This has been further refined to a group of populations with shared and fixed character combinations that represent minimal units appropriate for cladistic analysis (Davis and Nixon, 1992;Groves, 2004). In this sense, it is not so much a 'species concept' but a criterion for the diagnosis of species (Mayr, 1996;Goldstein and DeSalle, 2000).…”

Section: Systematics Theory and Backgroundmentioning

confidence: 99%

Taxonomic Tapestries: The Threads of Evolutionary, Behavioural and Conservation Research

2015

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Populations, Genetic Variation, and the Delimitation of Phylogenetic Species

Cited by 214 publications

References 0 publications

An alternative species taxonomy of the birds of Mexico

An alternative species taxonomy of the birds of Mexico

Mitochondrial DNA sequence variation and phylogeography of Pimelia darkling beetles on the Island of Tenerife (Canary Islands)

Taxonomic Tapestries: The Threads of Evolutionary, Behavioural and Conservation Research

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