Dung Beetle and Terrestrial Mammal Diversity in Forests, Indigenous Agroforestry Systems and Plantain Monocultures in Talamanca, Costa Rica

Harvey, Célia A.; González, Jorge A.; Somarriba, Eduardo

doi:10.1007/s10531-005-2088-2

Cited by 150 publications

(128 citation statements)

References 47 publications

(54 reference statements)

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“…In Costa Rica, Harvey et al (2006) found that dung beetle species richness was greatest in forests, intermediate in cocoa agroforestry systems, and lowest in plantain monocultures, while mammal species richness was higher in forests than in either cocoa agroforestry systems or plantain monocultures. In a study in Cameroon, Lawton et al (1998) assessed whether changes in species richness of different groups of organisms (birds, soil nematodes and several arthropod groups) over a disturbance gradient from near primary forest to fallow vegetation were correlated.…”

Section: Representativeness Of Groupsmentioning

confidence: 99%

Plant and bird diversity in rubber agroforests in the lowlands of Sumatra, Indonesia

Danielsen²,

et al. 2007

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Plant and bird diversity in the Indonesian jungle rubber agroforestry system was compared to that in primary forest and rubber plantations by integrating new and existing data from a lowland rain forest area in Sumatra. Jungle rubber gardens are low-input rubber (Hevea brasiliensis) agroforests that structurally resemble secondary forest and in which wild species are tolerated by the farmer. As primary forests have almost completely disappeared from the lowlands of the Sumatra peneplain, our aim was to assess the contribution of jungle rubber as a land use type to the conservation of plant and bird species, especially those that are associated with the forest interior of primary and old secondary forest. Speciesaccumulation curves were compiled for terrestrial and epiphytic pteridophytes, trees and birds, and for subsets of 'forest species' of terrestrial pteridophytes and birds. Comparing jungle rubber and primary forest, groups differed in relative species richness patterns. Species richness in jungle rubber was slightly higher (terrestrial pteridophytes), similar (birds) or lower (epiphytic pteridophytes, trees, vascular plants as a whole) than in primary forest. For subsets of 'forest species' of terrestrial pteridophytes and birds, species richness in jungle rubber was lower than in primary forest. For all groups, species richness in jungle rubber was generally higher than in rubber plantations. Although species conservation in jungle rubber is limited by management practices and by a slash-and-burn cycle for replanting of about 40 years, this forest-like land use does support species diversity in an impoverished landscape increasingly dominated by monoculture plantations.

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Section: Representativeness Of Groupsmentioning

confidence: 99%

Plant and bird diversity in rubber agroforests in the lowlands of Sumatra, Indonesia

Danielsen²,

et al. 2007

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“…Exotics species are the most expensive in the locality due to their diversification in services: source of Non-timber forest products (NTFPs), medicinal values, firewood, soil fertility, sufficient shades etc. It is for this reason that they are more abundant in these systems compared to native species which, according to the cocoa farmers interviewed, render little services (essentially economic) compared to exotic species and the difficulty to remove them when diameter are important [9][10][11][12][13].…”

Section: Specific Diversitymentioning

confidence: 99%

“…These systems are an alternative to conventional agriculture [10], economic, sociocultural capital, a source of more and diversified benefits and incomes [11][12][13][14][15]. Moreover, more studies have shown that, CAF are recognized for their ability to store important quantities of carbon, thus providing remarkable potential to fight against climate change [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, more studies have shown that, CAF are recognized for their ability to store important quantities of carbon, thus providing remarkable potential to fight against climate change [16][17][18][19]. However, the fluctuation in the price of cocoa in the world markets and the increase in the purchase prices of this raw material amongst rural households encourages them to extend their cocoa farms at the detriment of natural ecosystems [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Biodiversity and Carbon Stock in the SODECAO Agroforestry System of Center Region of Cameroon: Case of Talba Locality

Nadege¹

2017

AJAF

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Abstract:This study was carried out in typical SODECAO (Cocoa Development Company) agroforestry systems of Talba locality (Central region of Cameroon). The objective was to assess the role of typical SODECAO agroforestry systems in the conservation of biodiversity and the climate change mitigation. Trees inventories of diameter ≥10 cm and all cocoa trees were carried out in 40 plots of 25 m x 25 m. Cocoa Agroforests (CAF) sampled were stratified in three age classes (≥10, 10-20 and 20 years represented by young, middle and old cocoa agroforests respectively). Their aboveground biomass was estimated using allometric equations. A total of 21 trees species belonging to 19 genera and 14 families were inventoried. Of the total number of species of trees recorded, 24% were threatened looking at their IUCN (International Union for Conservation of Nature) status. Indeed, 9 species (43%) were indigenous and 12 (57%) exotic. The biodiversity indices values found were: Shannon (2.7), Pielou (0.7) and Simpson (0.9). The estimation of the specific wealth varied from 73-81% in CAF. The abundance of cocoa shrubs and associated tree species were estimated to 1104 stems ha -1 and 77 stems ha -1 respectively. The total carbon stock was 100 Mg Cha -1 . Cocoa shrubs and associated tree species carbon stock were 30 and 70 Mg Cha -1 respectively. According to the three age classes considered, there were a significantly differences between their carbon stocks (ANOVA, p <0.05). SODECAO cocoa agroforestry systems could be recognized amongst one of the major issues of international negotiations for the fight against climate change.

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“…Scientists and politicians are increasingly aware of agroforestry's role in biodiversity conservation in both tropical and temperate regions. The importance of agroforestry in biodiversity conservation has been highlighted recently by numerous authors (Harvey, González, & Somarriba, 2006;McNeely, 2004;Schroth et al, 2004). Shibu (2009) indicated that agroforestry plays five fundamental roles in biodiversity conservation: a) provides habitat to perturbation tolerant species; b) permits preservation of germplasm of sensitive species; c) helps to reduce habitat destruction, providing more productive and sustainable alternatives to conventional (i. e. modern) agricultural systems that require increasingly more land; d) supplies connectivity through corridors between habitat remnants, creating an integrating net that increases the conservation of flora and fauna; and e) provides services in erosion control and groundwater recharge, preventing habitat degradation and loss.…”

Section: Biodiversity Conservationmentioning

confidence: 99%

Environmental services from tropical agroforestry systems

Casanova‐Lugo¹,

Ramírez-Avilés²,

Parsons³

et al. 2016

rchscfa

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T he purpose of this review is to discuss the role of agroforestry systems in providing environmental services, including more diverse and sustainable agricultural production, increased carbon stocks and enhanced biodiversity conservation, plus improved soil fertility, methane emission mitigation, and water and air quality. There is evidence that agroforestry systems have an important role in providing environmental services, as approximately 20 % of the world's population, primarily in rural and urban areas of developing countries, depends directly on agroforestry products. The adoption of agroforestry contributes to reduced greenhouse gas emissions (carbon dioxide and methane), diminishes the pressure on vulnerable ecosystems, and improves the livelihoods of rural communities.Resumen E l propósito de esta revisión es discutir el papel de los sistemas agroforestales en la prestación de servicios ambientales, incluyendo producción agrícola más diversificada y sostenible, aumento de reservas de carbono, conservación de la biodiversidad, mejora de la fertilidad del suelo, mitigación de emisiones de metano y calidad del agua y aire. Existe evidencia de que los sistemas agroforestales juegan un papel importante en la prestación de servicios ambientales, ya que aproximadamente 20 % de la población mundial, sobre todo las zonas rurales y urbanas de los países en desarrollo, depende directamente de los productos agroforestales. La adopción de sistemas agroforestales contribuye a reducir las emisiones de gases de efecto invernadero (dióxido de carbono y metano), disminuye la presión sobre los ecosistemas vulnerables y mejora las condiciones de vida de las comunidades rurales. Palabras clave:Biodiversidad, captura de carbono, emisiones de metano, fertilidad del suelo, conservación del agua.

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Dung Beetle and Terrestrial Mammal Diversity in Forests, Indigenous Agroforestry Systems and Plantain Monocultures in Talamanca, Costa Rica

Cited by 150 publications

References 47 publications

Plant and bird diversity in rubber agroforests in the lowlands of Sumatra, Indonesia

Plant and bird diversity in rubber agroforests in the lowlands of Sumatra, Indonesia

Biodiversity and Carbon Stock in the SODECAO Agroforestry System of Center Region of Cameroon: Case of Talba Locality

Environmental services from tropical agroforestry systems

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