Datos para la apreciación de la flora fanerogámica del bosque tropical caducifolio de México

Rzedowski, Jerzy; Rzedowski, Graciela Calderón de

doi:10.21829/abm102.2013.229

Cited by 42 publications

(64 citation statements)

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“…All these families, except Lamiaceae, are recognized as the most diverse in dry forests around the world (Gentry 1995, Trejo 1998, Pérez-García et al 2001, Jiménez-Ramírez et al 2003, Gallardo-Cruz et al 2005. Also, although in Zoyatlan were listed 71.43 % of the genera that Rzedowski & Calderón (2013) stand out as those with the largest number of species in the TDFs of Mexico, only 10 of these genera presented ≥ 4 species; however, three of them, Dalea, Eupatorium and Salvia, are not included in that study.…”

Section: Discussionmentioning

confidence: 92%

“…Four of these five species are part of the most diverse families; while members of Fabaceae are often associated with primary and secondary vegetation, Asteraceae and Poaceae are always related to secondary vegetation (Guízar-Nolazco et al 2010, López-Sandoval et al 2010, Rzedowski & Calderón 2013. In this way composition, richness and species diversity that was found between fragments and the strata of each fragment in Zoyatlan had a great variability.…”

Section: Discussionmentioning

confidence: 95%

“…Based on studies about the flora of the mid and high Balsas of the state of Guerrero, we find that our records represent 23.43 % of the total of species known for the TDFs of the municipality of E. Neri, which ranks third in diversity for the whole country (Jiménez-Ramírez et al 2003); for the zone of Papalutla our data represent 49.27 % (Martínez- Gordillo et al 1997). Considering that this type of vegetation is most common in the Balsas, but also that it stands out for its high species richness and number of endemic species (Rzedowski, 1991b, Rzedowski & Calderón 2013 The research area has 29 % of all families registered for Balsas basin (Fernández-Nava et al 1998) and between 76 and 44 % of those reported in municipalities of the state of Guerrero that are part of the Balsas center (Jiménez-Ramírez et al 2003, Ávila-Sánchez et al 2010 and high subregions (Martínez-Gordillo et al 1997, Guízar-Nolasco et al 2010. These studies point to Fabaceae, Asteraceae and Poaceae as the richest in species; this is also the case in Zoyatlan.…”

Section: Discussionmentioning

confidence: 99%

“…Besides their great number of endemism (Rzedowski 1991b), TDFs are characterized as the richest forests of the world , Rzedowski & Calderón 2013. Unfortunately, deforestation and fragmentation caused by agriculture contribute to their degradation (Rzedowski & Calderón 1987, Trejo & Dirzo 2000, as well as other less known social and environmental threats.…”

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Vegetation of a tropical dry forest in a landscape with chronic disturbance: the case of the indigenous community of San Nicolás Zoyatlan (Guerrero, Mexico)

et al. 2017

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Background: Tropical dry forests (TDF) provide numerous environmental services to its residents; this has led them to be humanized landscapes subjected to chronic disturbance with a high risk of disappearing. Research question: To establish the relationship of vegetation structure and composition of a chronically disturbed TDF, with some environmental factors and the intensity of agricultural land use. Study site and period of research: Our study was conducted during six months (July through November) in the TDF of the community of San Nicolas Zoyatlan (Guerrero, Mexico); a territory with a history of over 500 years of agricultural use. This use has led to a complex mosaic of vegetation fragments. Methods: A selection of 36 fragments was studied to determine vegetation structure and composition as well as environmental factors. Representative plants from sampled areas were collected. Data gathered was explored with regression and multivariate statistical analysis techniques. Results: A total of 59 families, 178 genera and 279 species were recorded. Species richness varied widely among fragments, in general with a low dominance and high turnover of species. Slope was the only factor that showed a solid relationship with vegetation variables. Three groups of fragments were established and the statistical differences between them were explained by the duration of fallow. The fragments with longer fallow period showed the best conditions in vegetation variables and 66.9 % of the species were found in them. Conclusions: Composition and structure of the tropical dry forests were related to intensity of agricultural land use. Although there is a process of impoverishment, vegetation dynamics involving species of the Fabaceae, Asteraceae and Burseraceae families show a potential for their use in the environmental restoration of Zoyatlan. Keywords: Balsas watershed, chronic disturbance, composition and structure, intensity of agricultural use, potential species. ResumenAntecedentes: Los bosques tropicales secos (BTS) aportan numerosos servicios ambientales a sus habitantes, esto los ha llevado a ser paisajes humanizados sujetos a disturbio crónico con riesgo de desaparecer. Pregunta: ¿Cuál es la relación de la composición y estructura de la vegetación de un BTS sujeto a disturbio crónico, con algunos factores del medio físico y la intensidad de uso agrícola del suelo? Sitio de estudio y fecha: El estudio se realizó en la comunidad de San Nicolás Zoyatlan (Guerrero, México) durante seis meses (junio-noviembre). Este territorio cuenta con más de 500 años de uso agropecuario, lo que ha propiciado un complejo mosaico de fragmentos de vegetación. Métodos: Se muestrearon 36 fragmentos para determinar la composición y estructura de la vegetación y los factores ambientales. Se recolectó y herborizó el material botánico representativo de las áreas muestreadas. Utilizando análisis de regresión y técnicas multivariadas se establecieron, tanto relaciones entre la vegetación y los factores ambientales como grupos específicos ...

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Vegetation of a tropical dry forest in a landscape with chronic disturbance: the case of the indigenous community of San Nicolás Zoyatlan (Guerrero, Mexico)

et al. 2017

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“…The northerly Mexican dry forests, which reach the Tropic of Cancer, have high species numbers similar to the more equatorial Caatinga (1072 compared with 1112), despite being covered by far fewer surveys (33 compared with 184) ( fig. S6) and in one-third of the land area [280,000 km 2 (26)]. It is intriguing that there may be a peak in regional dry forest species richness around 20 degrees latitude ( fig.…”

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confidence: 99%

Plant diversity patterns in neotropical dry forests and their conservation implications

Dryflor¹,

Banda-R²,

Delgado‐Salinas³

et al. 2016

Science

536

259

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Seasonally dry tropical forests are distributed across Latin America and the Caribbean and are highly threatened, with less than 10% of their original extent remaining in many countries. Using 835 inventories covering 4660 species of woody plants, we show marked floristic turnover among inventories and regions, which may be higher than in other neotropical biomes, such as savanna. Such high floristic turnover indicates that numerous conservation areas across many countries will be needed to protect the full diversity of tropical dry forests. Our results provide a scientific framework within which national decision-makers can contextualize the floristic significance of their dry forest at a regional and continental scale. N eotropical seasonally dry forest (dry forest) is a biome with a wide and fragmented distribution, found from Mexico to Argentina and throughout the Caribbean (1, 2) ( Fig. 1). It is one of the most threatened tropical forests in the world (3), with less than 10% of its original extent remaining in many countries (4).Following other authors (5, 6), we define dry forest as having a closed canopy, distinguishing it from more open, grass-rich savanna. It occurs on fertile soils where the rainfall is less thañ 1800 mm per year, with a period of 3 to 6 months receiving less than 100 mm per month (5-7), during which the vegetation is mostly deciduous. Seasonally dry areas, especially in Peru and Mexico, were home to pre-Columbian civilizations, so human interaction with dry forest has a long history (8). The climates and fertile soils of dry forest regions have led to higher human population densities and an increasing demand for energy and land, enhancing degradation (9). More recently, destruction of dry forest has been accelerated by intensive cultivation of crops, such as sugar cane, rice and soy, or by conversion to pasture for cattle.Dry forest is in a critical state because so little of it is intact, and of the remnant areas, little is protected (3). For example, only 1.2% of the total Caatinga region of dry forest in Brazil is fully protected compared with 9.9% of the Brazilian Amazon (10). Conservation actions are urgently needed to protect dry forest's unique biodiversity-many plant species and even genera are restricted to it and reflect an evolutionary history confined to this biome (1).We evaluate the floristic relationships of the disjunct areas of neotropical dry forest and highlight those that contain the highest diversity and endemism of woody plant species. We also explore woody plant species turnover across geographic space among dry forests. Our results provide a framework to allow the conservation significance of each separate major region of dry forest to be assessed at a continental scale. Our analyses are based on a subset of a data set of 1602 inventories made in dry forest and related semi-deciduous forests from Mexico and the Caribbean to Argentina and Paraguay that covers 6958 woody species, which has been compiled by the Latin American and Caribbean Seasonally Dry Tropica...

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Diversity, Distribution, and Abundance of Woody Plants in a Dry Tropical Forest: Recommendations for Its Management

Argumedo-Espinoza

Ramírez

Díaz-Núñez

et al. 2018

Mexican Natural Resources Management and Biodiversity Conservation

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Datos para la apreciación de la flora fanerogámica del bosque tropical caducifolio de México

Cited by 42 publications

References 11 publications

Vegetation of a tropical dry forest in a landscape with chronic disturbance: the case of the indigenous community of San Nicolás Zoyatlan (Guerrero, Mexico)

Vegetation of a tropical dry forest in a landscape with chronic disturbance: the case of the indigenous community of San Nicolás Zoyatlan (Guerrero, Mexico)

Plant diversity patterns in neotropical dry forests and their conservation implications

Diversity, Distribution, and Abundance of Woody Plants in a Dry Tropical Forest: Recommendations for Its Management

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