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Impact of habitat type on the conservation status of tamarind (Tamarindus indica L.) populations in the W National Park of Benin

(2010) FRUITS. 65(1). p.11-19
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Abstract
Introduction. The conservation status of many wild fruit tree species that support rural people in Africa remains poorly documented despite its importance for their management. We compared the viability of tamarind (Tamarindus indica) populations, a dry land species that has nutritional, medicinal and cultural importance for rural communities, under different human-pressure levels. Materials and methods. The data relative to the tree diameter and height as well as the number of adults and stems were collected in plots of inventory and made it possible to calculate the dendrometric parameters for each targeted population, and to establish their diameter distribution. The dendrometric characteristics were analyzed by using nonparametric tests and the diameter distribution was adjusted to a truncated normal distribution. Results and discussion. Numbers of mature tamarind trees per hectare and regeneration (expressed as stem.ha(-1)) were relatively low, suggesting tamarind populations may not be self-rejuvenating. Nonetheless, significant variation occurred between habitat types (P < 0.001). Mature tree density in gallery forests [(18.2 +/- 10.1) trees.ha(-1)] was three to eight times higher than that of savannah woodlands [(5 +/- 4.5) trees.ha(-1)] and farmlands [(2.5 +/- 0.4) trees.ha(-1)]. Young plants followed the same trend, with (11.2 +/- 9.3) plants.ha(-1), (1.1 +/- 0.6) plants.ha(-1), and 0.00 plants.ha(-1), respectively. Diameter size class distributions departed from normality (P < 0.0001) and coefficient of skewness was positive irrespective of habitat type, indicating declining populations. However, median diameter values would suggest the species' populations in farmlands and savannah woodlands to be more vulnerable than those occurring in gallery forests. These findings would suggest that gallery forests best suit tamarind in situ conservation. The observed severe reduction of trees and juveniles in farmlands and woodlands may negatively impact the long-term viability of tamarind populations. Juveniles' introduction into farmlands may be needed to ensure conservation in agroforestry systems.
Keywords
resource conservation, habitats, Benin, Tamarindus indica, stand characteristics, forest inventories, anthropic influence, TIMBER FOREST PRODUCTS, PHENOTYPIC VARIATION, SPECIES COMPOSITION, SIZE DISTRIBUTIONS, SOUTH-AFRICA, TREE, REGENERATION, DOMESTICATION, DIVERSITY, COMMUNITY

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MLA
Fandohan, Adandé Belarmain, Achille Ephrem Assogbadjo, Romain Lucas Glele Kakai, et al. “Impact of Habitat Type on the Conservation Status of Tamarind (Tamarindus Indica L.) Populations in the W National Park of Benin.” FRUITS 65.1 (2010): 11–19. Print.
APA
Fandohan, A. B., Assogbadjo, A. E., Kakai, R. L. G., Sinsin, B., & Van Damme, P. (2010). Impact of habitat type on the conservation status of tamarind (Tamarindus indica L.) populations in the W National Park of Benin. FRUITS, 65(1), 11–19.
Chicago author-date
Fandohan, Adandé Belarmain, Achille Ephrem Assogbadjo, Romain Lucas Glele Kakai, Brice Sinsin, and Patrick Van Damme. 2010. “Impact of Habitat Type on the Conservation Status of Tamarind (Tamarindus Indica L.) Populations in the W National Park of Benin.” Fruits 65 (1): 11–19.
Chicago author-date (all authors)
Fandohan, Adandé Belarmain, Achille Ephrem Assogbadjo, Romain Lucas Glele Kakai, Brice Sinsin, and Patrick Van Damme. 2010. “Impact of Habitat Type on the Conservation Status of Tamarind (Tamarindus Indica L.) Populations in the W National Park of Benin.” Fruits 65 (1): 11–19.
Vancouver
1.
Fandohan AB, Assogbadjo AE, Kakai RLG, Sinsin B, Van Damme P. Impact of habitat type on the conservation status of tamarind (Tamarindus indica L.) populations in the W National Park of Benin. FRUITS. 2010;65(1):11–9.
IEEE
[1]
A. B. Fandohan, A. E. Assogbadjo, R. L. G. Kakai, B. Sinsin, and P. Van Damme, “Impact of habitat type on the conservation status of tamarind (Tamarindus indica L.) populations in the W National Park of Benin,” FRUITS, vol. 65, no. 1, pp. 11–19, 2010.
@article{2136665,
  abstract     = {Introduction. The conservation status of many wild fruit tree species that support rural people in Africa remains poorly documented despite its importance for their management. We compared the viability of tamarind (Tamarindus indica) populations, a dry land species that has nutritional, medicinal and cultural importance for rural communities, under different human-pressure levels.
Materials and methods. The data relative to the tree diameter and height as well as the number of adults and stems were collected in plots of inventory and made it possible to calculate the dendrometric parameters for each targeted population, and to establish their diameter distribution. The dendrometric characteristics were analyzed by using nonparametric tests and the diameter distribution was adjusted to a truncated normal distribution.
Results and discussion. Numbers of mature tamarind trees per hectare and regeneration (expressed as stem.ha(-1)) were relatively low, suggesting tamarind populations may not be self-rejuvenating. Nonetheless, significant variation occurred between habitat types (P < 0.001). Mature tree density in gallery forests [(18.2 +/- 10.1) trees.ha(-1)] was three to eight times higher than that of savannah woodlands [(5 +/- 4.5) trees.ha(-1)] and farmlands [(2.5 +/- 0.4) trees.ha(-1)]. Young plants followed the same trend, with (11.2 +/- 9.3) plants.ha(-1), (1.1 +/- 0.6) plants.ha(-1), and 0.00 plants.ha(-1), respectively. Diameter size class distributions departed from normality (P < 0.0001) and coefficient of skewness was positive irrespective of habitat type, indicating declining populations. However, median diameter values would suggest the species' populations in farmlands and savannah woodlands to be more vulnerable than those occurring in gallery forests. These findings would suggest that gallery forests best suit tamarind in situ conservation. The observed severe reduction of trees and juveniles in farmlands and woodlands may negatively impact the long-term viability of tamarind populations. Juveniles' introduction into farmlands may be needed to ensure conservation in agroforestry systems.},
  author       = {Fandohan, Adandé Belarmain and Assogbadjo, Achille Ephrem and Kakai, Romain Lucas Glele and Sinsin, Brice and Van Damme, Patrick},
  issn         = {0248-1294},
  journal      = {FRUITS},
  keywords     = {resource conservation,habitats,Benin,Tamarindus indica,stand characteristics,forest inventories,anthropic influence,TIMBER FOREST PRODUCTS,PHENOTYPIC VARIATION,SPECIES COMPOSITION,SIZE DISTRIBUTIONS,SOUTH-AFRICA,TREE,REGENERATION,DOMESTICATION,DIVERSITY,COMMUNITY},
  language     = {eng},
  number       = {1},
  pages        = {11--19},
  title        = {Impact of habitat type on the conservation status of tamarind (Tamarindus indica L.) populations in the W National Park of Benin},
  url          = {http://dx.doi.org/10.1051/fruits/2009037},
  volume       = {65},
  year         = {2010},
}

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