Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortes

Grismer, L.; Powell, Jerry S.

doi:10.1525/california/9780520224179.001.0001

Cited by 102 publications

(160 citation statements)

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“…Type localities are identified by large yellow or light circles. The range map was compiled using a number of published (Baxter and Stone, 1980; Committee on the Status of Endangered Wildlife in Canada, 2002;Environment Yukon, 2005;Green and Gregory, 2007;Grismer, 2002;Hammerson, 1999;Stebbins, 2003;Thompson et al, 2004) or online (http://www.alaskaherps.info/; http://imnh.isu.edu/ digitalatlas; http://www.wdfw.wa.gov/wlm/gap/dataprod.htm) sources and expert advice.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA evolution in the Anaxyrus boreas species group

Goebel

Ranker

Corn

et al. 2009

Molecular Phylogenetics and Evolution

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Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA evolution in the Anaxyrus boreas species group

Goebel

Ranker

Corn

et al. 2009

Molecular Phylogenetics and Evolution

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“…Most of the proposed species boundaries within the P. coronatum complex occur at junctions separating different ecological regions in Baja California (7), which implies that ecological diversification has played a critical role during lineage formation in this system. Ecological divergence represents an important stage during the process of lineage separation that has become increasingly feasible to quantify by using geographical information systems (GIS), and it is furthermore now possible to integrate these data within a phylogeographic framework (8)(9)(10).…”

mentioning

confidence: 99%

Quantifying ecological, morphological, and genetic variation to delimit species in the coast horned lizard species complex ( Phrynosoma )

Leaché

Koo

Spencer

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

202

160

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Lineage separation and divergence form a temporally extended process whereby populations may diverge genetically, morphologically, or ecologically, and these contingent properties of species provide the operational criteria necessary for species delimitation. We inferred the historical process of lineage formation in the coast horned lizard (Phrynosoma coronatum) species complex by evaluating a diversity of operational species criteria, including divergence in mtDNA (98 specimens; 2,781 bp) and nuclear loci (RAG؊1, 1,054 bp; BDNF 529 bp), ecological niches (11 bioclimatic variables; 285 unique localities), and cranial horn shapes (493 specimens; 16 landmarks). A phylogenetic analysis of mtDNA recovers 5 phylogeographic groups arranged latitudinally along the Baja California Peninsula and in California. The 2 southern phylogeographic groups exhibit concordance between genetic, morphological, and ecological divergence; however, differentiation is weak or absent at more recent levels defined by phylogeographic breaks in California. Interpreting these operational species criteria together suggests that there are 3 ecologically divergent and morphologically diagnosable species within the P. coronatum complex. Our 3-species taxonomic hypothesis invokes a deep coalescence event when fitting the mtDNA genealogy into the species tree, which is not unexpected for populations that have diverged recently. Although the hypothesis that the 3 phylogeographic groups distributed across California each represent distinctive species is not supported by all of the operational species criteria evaluated in this study, the conservation status of the imperiled populations represented by these genealogical units remains critical.evolution ͉ geometric morphometrics ͉ niche modeling ͉ phylogeography ͉ speciation

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“…Probablemente esta dicotomía es debido a la presencia de dos zonas de transición escalonadas o quizá una extensa transición como muestran la distribución de herpetofauna (Grismer, 1994(Grismer, , 2002 o plantas de la familia Acanthaceae (Daniel, 1997) o Leguminosae . Ante la falta de argumentos determinantes, optamos por mantener los límites propuestos por Shreve (1951), ajustándolos aproximadamente a la cuota altitudinal de 350 m, desde el sur de San Pedro Mártir hasta Bahía de los Ángeles.…”

Section: Transición En Los Desiertos Costeros Del Golfo Deunclassified

“…En nuestra opinión en la región central de la península tiene lugar la transición del área peninsular con lluvias predominantemente veraniegas (sur y este) e invernales (costa noroeste), con la impronta biogeográfi ca generada por la existencia de un brazo de mar (Riddle et al, 2000), por lo que constituye una zona de compleja transición norte-sur en la distribución de múltiples grupos de especies (Turner et al, 1995;Álvarez-Castañeda y Patton, 1999;Grismer, 2002;Zink, 2002). Decidimos establecer las fronteras entre el Desierto Central y el Desierto de Vizcaíno con base en el cambio topográfi co que ocurre entre ambas regiones, en combinación con la distribución del cirio (Fouquieria columnaris), que expresaría las fronteras del Desierto Central.…”

Section: Transición En Los Desiertos Costeros Del Golfo Deunclassified

Ecorregiones de la península de Baja California: Una síntesis

2010

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<p>La singularidad biológica de la península de Baja California ha capturado el interés de los naturalistas por largo tiempo. Fruto de ello ha sido la publicación de una rica variedad de interpretaciones geográficas de su escenario ecológico y biogeográfico. Aunque coincidentes en un marco común general, presentan también numerosas discrepancias. En este trabajo se revisa exhaustivamente la literatura publicada sobre el tema con el objeto de identificar las fronteras o zonas de transición que presentan mayor diversidad o discrepancia. Se sometió el diagnóstico al examen y discusión de un taller de expertos, el cual contó con el apoyo de un sistema de información geográfica, generando decisiones consensuadas. Los resultados se presentan en un mapa de regiones ecológicas de la península de Baja California como una síntesis del estudio e interpretación sobre las ecorregiones naturales de la península de Baja California.</p>

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Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortes

Cited by 102 publications

References 0 publications

Mitochondrial DNA evolution in the Anaxyrus boreas species group

Mitochondrial DNA evolution in the Anaxyrus boreas species group

Quantifying ecological, morphological, and genetic variation to delimit species in the coast horned lizard species complex ( Phrynosoma )

Ecorregiones de la península de Baja California: Una síntesis

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