Análisis fitosociológico de los saladares y manglares de Baja California, México

Delgadillo, José; Peinado, Manuel; Cruz, Marcelino de la; Martinez-Parras, Jose Ma.; Alcaraz, Francisco; Torre, Antonio de la

doi:10.21829/abm19.1992.645

Cited by 23 publications

(16 citation statements)

References 10 publications

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“…The literature consulted was Gentry (1978), Wiggins (1980), Gould & Moran (1981), Perry (1991), Delgadillo (1992), Lenz (1992), León de la Luz & Coria (1992), Turner et al (1995) and Moran (1996). The lists from these publications were compared with Beauchamp (1986), Hickman (1993) and Martin et al (1998), in order to exclude those species that are present outside the study region.…”

Section: Geographic Informationmentioning

confidence: 99%

Endemic regions of the vascular flora of the peninsula of Baja California, Mexico

Riemann¹,

Ezcurra

2007

J Vegetation Science

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Question: Can we recognize areas of high endemism and high endemic richness, using data from collections, and what are the ecological variables that best explain these areas? Location: Peninsula of Baja California, Mexico. Methods: We analysed the distribution of 723 endemic vascular plants species along the peninsula of Baja California and neighbouring islands distributed in 218 cartographic cells 15’ x 20’ in size. By means of a residual analysis, we identified areas of significantly high endemic species richness, and we calculated the degree of endemicity (or rarity) in each cell by giving to each species a weight factor inversely proportional to the land area it covers. Results: Nine regions of high‐endemicity and/or high endemic species richness were found. Discussion and conclusions: The analyses of rarity and endemic species richness showed two contrasting scenarios: High endemicity values in oceanic and sky islands accounts for a high number of species with a restricted distribution, promoted most likely by genetic isolation and high environmental heterogeneity. High endemic richness along the peninsular coast is related to ecotonal transition along vegetation types. After correcting for collection effort (i.e. the number of specimens collected within a cell), we found the phytogeographic region and altitudinal heterogeneity to be the variables that best predicted endemic richness. Both high endemism and high endemic richness have distinct geographic patterns within our study region. The nine endemic regions provide elements for priority definitions in future conservation programs.

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Section: Geographic Informationmentioning

confidence: 99%

Endemic regions of the vascular flora of the peninsula of Baja California, Mexico

Riemann¹,

Ezcurra

2007

J Vegetation Science

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“…In light of this vegetation heterogeneity, there have been multiple attempts to characterize and name the coastal scrub habitat of northwestern Baja California: Thorne (1976) designated it as maritime desert scrub; Heady et al (1977) and Mooney (1977) called it succulent scrub; Kirkpatrick and Hutchinson (1977) and Axelrod (1978) identified the region as Diegan coastal sage vegetation; and Delgadillo (1998) referred to it as coastal succulent scrub. Most recently this habitat has been referred to as maritime succulent scrub (Minnich and Franco-Vizcaíno 1998;Barbour et al 2007;Rundel 2007;Harper et al 2010).…”

Section: Introductionmentioning

confidence: 99%

The Flora of Greater San Quintín, Baja California, Mexico (2005–2010)

Vanderplank¹

2011

aliso

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The plants of San Quintín (Baja California, Mexico) were documented through intensive fieldwork and collection of herbarium specimens to create a checklist of species. The region is located near the southernmost extent of the California Floristic Province, and the flora is influenced by the adjacent desert to the south. A total of 435 plant taxa were documented, of which 82% are native plants. Almost one in three native plant taxa in Greater San Quintín is a sensitive species, here documented as rare and/or locally endemic, and many taxa have yet to be evaluated fully for rarity and threats. Four major habitats were identified, and a checklist is presented for each. Shell middens and vernal pools represent micro-habitats with unique species that also warrant conservation consideration. All habitats in Greater San Quintín are threatened by human activity, and agricultural water use practices are unsustainable. There is a pressing need for conservation of the natural areas that remain in this unique but heavily impacted region. The El Socorro Dunes and the volcanic bay are of particular conservation value with several narrowly endemic taxa. As a transitional area in a global biodiversity hotspot, Greater San Quintín is home to many species on the edge of their ranges and may be of critical importance to biodiversity conservation in a changing climate. RESUMENSe documentó la presencia de las plantas que se encuentran en San Quintín (Baja California, México) a través de trabajo de campo intensivo y la colecta de especímenes de herbario, con el objeto de generar un listado de especies de la zona. La regió n se encuentra cercana al límite sur de la Provincia Florística de California y la flora está influenciada por el desierto que se encuentra en su parte meridional. En total, 435 taxa fueron documentados, de los cuales 82% son plantas nativas. Alrededor de una de cada tres plantas nativas en San Quintín y sus á reas adyacentes es una especie sensible, documentada es este estudio como rara y/o endémica localmente, pero aú n quedan por evaluar la rareza y el estado de conservació n de varios taxa. Se identificaron cuatro há bitats principales y se presenta un listado florístico para cada uno. Los concheros y las charcas temporales representan microhá bitats con especies ú nicas que también merecen ser consideradas para efectos de conservació n. Todos los há bitats de San Quintín y sus á reas adyacentes se encuentran amenazados por actividades humanas y el uso del agua para la agricultura no es sustentable. Existe una necesidad urgente de conservar las á reas naturales que quedan en esta regió n, que aunque es ú nica ha sido fuertemente impactada. Las dunas de El Socorro y la zona de la bahía volcá nica tienen un valor particular de conservació n, ya que poseen muchos taxones endémicos a á reas muy restringidas. Al ser una á rea de transició n en un ''hotspot'' de biodiversidad, la zona de San Quintín y sus alrededores es el hogar de poblaciones de muchas especies que se hallan en el límite de sus rangos de dist...

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“…The geographically nearest phytosociological studies dealing with this kind of vegetation are those carried out by Peinado et al (1994aPeinado et al ( , 1994bPeinado et al ( , 1995aPeinado et al ( , 1995bPeinado et al ( , 1997Peinado et al ( , 2005Peinado et al ( , 2006Peinado et al ( , 2008Peinado et al ( , 2011 on the Pacific coast (USA and Mexico) and a number of others in Mexico (Delgadillo et al 1992;Barber et al 2001;Cano et al 2012), the Antilles (Foucault 1981), Cuba (Samek & Moncada 1971;Borhidi et al 1979Borhidi et al , 1983Borhidi 1987Borhidi , 1991Borhidi , 1996Reyes & Acosta 2003, 2007a, 2007b, Brazil (Bolò s et al 1991), Colombia (Cuatrecasas 1934(Cuatrecasas , 1958Cortés-Castillo & RangelChurio 2011) and Peru, Paraguay, Bolivia and Venezuela (Galán de Mera & Navarro 1992;Galán de Mera 1995, 2001Galán de Mera & Linares Perea 2008).…”

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confidence: 99%

Study of the vegetation in the Multiple Use Natural Reserve of Monterrico (Guatemala)

García-Fuentes

Castillo-Cabrera

Dávila-Pérez

et al. 2013

Plant Biosystems - An International Journal Dealing with all As

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Análisis fitosociológico de los saladares y manglares de Baja California, México

Abstract: -

Cited by 23 publications

References 10 publications

Endemic regions of the vascular flora of the peninsula of Baja California, Mexico

Endemic regions of the vascular flora of the peninsula of Baja California, Mexico

The Flora of Greater San Quintín, Baja California, Mexico (2005–2010)

Study of the vegetation in the Multiple Use Natural Reserve of Monterrico (Guatemala)

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