Homegardens of a humid tropical region in Southeast Mexico: an example of an agroforestry cropping system in a recently established community

Roces, María Elena Alvarez-Buylla; Chavero, Elena Lazos; García-Barrios, Raúl

doi:10.1007/bf00123117

Cited by 63 publications

(32 citation statements)

References 6 publications

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“…The SUV of the HG was 19%, with 58 species mainly used for food, medicinal products, and ornamental services. The number of used species in HG was nearly the same as those measured in area with similar climate conditions corresponding to La Sierra de Misantla: Alvarez-Buylla et al [38] identified 62 species in HG systems of Balzapote, Los Tuxtlas, Veracruz. In addition, Van der Wal and Bongers [39] observed 195 species that might be explained due to a larger sample size (61 home gardens of several sizes) in the state of Tabasco, México with similar species, despite a slightly warmer climate.…”

Section: Discussionsupporting

confidence: 59%

Floristic Diversity and Cultural Importance in Agroforestry Systems on Small-Scale Farmer’s Livelihoods in Central Veracruz, México

et al. 2018

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Abstract:México is a cultural and biological megadiverse country with an increased anthropogenic pressure on its tropical landscapes. The study area was the ejido "Los Ídolos", Misantla, Central Veracruz, Mexico. The main objective of this research was to identify how the woody plant diversity of agroforestry systems contributed to the cultural, economic, and subsistence security of local farmers. Five different agroforestry systems were identified: forest gardens (FG), home gardens (HG), plantation crop combination with perennial cultivates (PC), plantation crop combinations with annual cultivates (AC), and trees on pastures (TP). FG systems had the highest floristic diversity, followed by HG and TP. Interviews with farmers showed that FG, HG, and PC systems were important for maintaining cultural identity and secure subsistence needs, while PC and TP systems were important for improving the economic situation of farmers. The FG systems contained only native species, while the proportion of exotic plants differed among the other systems. Useful exotic plants were found in the HG system. This study demonstrated that agroforestry systems such as FG were not used to their full potential, despite their high diversity of useful plants. It is recommended that farmers-assisted by institutions and representatives of local product chains-conduct feasibility studies on the marketing and promotion of products derived from specific agroforestry systems.

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Section: Discussionsupporting

confidence: 59%

Floristic Diversity and Cultural Importance in Agroforestry Systems on Small-Scale Farmer’s Livelihoods in Central Veracruz, México

et al. 2018

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“…In these gardens not only the highest total species richness, but also the highest amount of local species was found (Table 6), though the latter were often only present in low abundances. These low abundances may limit the general suitability of these urban and peri-urban gardens for in situ conservation, as also mentioned by Alvarez-Buylla Roces et al (1989) and Kehlenbeck (2007). However, the absolute value of the surveyed gardens for in situ conservation of wild and domesticated indigenous plant species could not be assessed because no list of threatened and endangered species of Niger is available.…”

Section: Contribution Of the Gardens Towards In Situ Conservation Of mentioning

confidence: 87%

“…Under humid conditions, however, plant species richness in homegardens is often much higher. A total of 602 species and a mean of 7 to 24 species per garden was found in small homegardens on Java, Indonesia (Karyono 1990) and a total of 338 species in homegardens of humid Mexico (Alvarez-Buylla Roces et al 1989).…”

Section: Discussionmentioning

confidence: 99%

Plant species richness and diversity in urban and peri-urban gardens of Niamey, Niger

et al. 2009

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Urban and peri-urban agriculture (UPA) significantly contributes to food and nutritional security of urban dwellers in many African countries. Economic and demographic pressures often lead to transformation of subsistence-oriented traditional homegardens into commercial production units. Such transformation is claimed to result in decreasing plant diversity, particularly of local species. A study was therefore undertaken in 51 gardens of Niamey, Niger, to assess the factors determining plant diversity and the suitability of UPA for in situ conservation of plant genetic resources. In each garden, the number and abundance of all human-used plant species were determined, and species density, Shannon index and Shannon evenness were calculated. In the 51 surveyed gardens, a total of 116 plant species were cultivated, most of them for the production of fruits or vegetables. Annual vegetables dominated, particularly exotic species grown for sale. In the cold season, an average of 14 species were cultivated per garden, the Shannon index was 0.96 and evenness was 0.39. Commercial gardens had a species richness similar to that of subsistence gardens, but a lower evenness (P \ 0.005), caused by the dominance of a few vegetable species. Gardens of immigrants had a lower Shannon index than those of members of the local Djerma ethnic group.Stepwise multiple regression analysis showed significant influence of various variables on plant species richness and diversity parameters: garden size (richness and Shannon index), ethnicity of the gardener (richness and evenness), gender of the gardener and cash-oriented production (evenness), household size (richness) and garden possession status (Shannon index). Cluster analysis revealed the existence of five garden types. The highest species richness and diversity, particularly of perennial and local species, was found in large, peri-urban, commercial gardens managed by relatively wealthy, elderly gardeners with large families and a regular non-agricultural income.

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“…This is indicative of an active manipulation of considerable plant diversity (see examples in Zizumbo and Colunga 1982;Alcorn 1984;Alvarez-Buylla et al 1989;Caballero 1991;Oldfield and Alcorn 1991;Casas et al 1994;Bello´n 1996;Brush and Stabinsky 1996;Nazarea 1998;Amorozo 2000;Brush 2004). However, comparisons of the variation existing in manipulated populations with variation in wild or weedy populations of relatives of crop species are rarely documented.…”

Section: Introductionmentioning

confidence: 96%

Maintenance of Phenotypic and Genotypic Diversity in Managed Populations of Stenocereus Stellatus (Cactaceae) by Indigenous Peoples in Central Mexico

et al. 2005

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The columnar cactus Stenocereus stellatus is used in Central Mexico for its edible fruits which are harvested in wild, managed in situ and cultivated populations. Management in situ of wild populations is conducted by selectively sparing and enhancing the abundance of plants with desirable phenotypes when fields are cleared for agricultural use. Cultivation of desirable phenotypes is carried out by vegetative propagation in homegardens. Effects of human management on morphological and genetic variation of S. stellatus were analyzed by comparing morphological diversity indices (MD, based on Simpson's index) and expected (H e ) heterozygosity indices from allozyme analysis, in wild, managed in situ, and cultivated populations from La Mixteca and the Tehuaca´n Valley regions. Morphological diversity was similar among regions, but populations from the wetter La Mixteca region averaged higher genetic variation (H e = 0.279) than populations from Tehuaca´n (H e = 0.265). On average, populations manipulated by people had higher levels of variation (MD = 0.479 ± 0.012, H e = 0.289 in cultivated populations; MD = 0.461 ± 0.014, H e = 0.270 in managed in situ populations) than wild populations (MD = 0.408 ± 0.017, H e = 0.253), which is apparently due to a continual introduction and replacement of plant materials in the manipulated populations. The results illustrate that human management may not only maintain but also increase both morphological and genetic diversity of manipulated plant populations in relation to that existing in the wild. Managed in situ and cultivated populations of S. stellatus are important reservoirs of variation, and are crucial for the general maintenance of diversity in wild populations. These populations may play a principal role in designing strategies for the conservation of variation of this cactus.

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Homegardens of a humid tropical region in Southeast Mexico: an example of an agroforestry cropping system in a recently established community

Cited by 63 publications

References 6 publications

Floristic Diversity and Cultural Importance in Agroforestry Systems on Small-Scale Farmer’s Livelihoods in Central Veracruz, México

Floristic Diversity and Cultural Importance in Agroforestry Systems on Small-Scale Farmer’s Livelihoods in Central Veracruz, México

Plant species richness and diversity in urban and peri-urban gardens of Niamey, Niger

Maintenance of Phenotypic and Genotypic Diversity in Managed Populations of Stenocereus Stellatus (Cactaceae) by Indigenous Peoples in Central Mexico

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