Toward Integrated Analysis of Human Impacts on Forest Biodiversity: Lessons from Latin America

Newton, Adrian C.; Cayuela, Luis; Echeverría, Cristián; Armestó, Juan J.; Castillo, Rafael F. del; Golicher, Duncan; Geneletti, Davide; González‐Espinosa, Mario; Huth, Andreas; López‐Barrera, Fabiola; Malizia, Lucio R.; Manson, Robert H.; Premoli, Andrea C.; Ramírez‐Marcial, Neptalí; Benayas, José María Rey; Rüger, Nadja; Smith‐Ramírez, Cecilia; Williams‐Linera, Guadalupe

doi:10.5751/es-02847-140202

Cited by 44 publications

(43 citation statements)

References 89 publications

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“…For example, in Chile, evidence was found of a positive feedback between the processes of forest fragmentation and anthropogenic disturbance within patches, the latter occurring at higher intensity in smaller patches (Echeverría et al, 2007). Results from both study areas highlighted the value of ecological succession theory to understanding the impacts of habitat fragmentation on forest biodiversity, enabling testable predictions to be made (Newton et al, 2009). These predictions are currently being further tested in Latin American dryland forests (Newton, 2008), a global conservation priority (Miles et al, 2006).…”

Section: Use Of Remote Sensing In Landscape Ecology: Case Studiesmentioning

confidence: 99%

“…Incorporation of field data and expert knowledge signifi cantly increased the accuracy of image classifi cation, and enabled the spatial dynamics of land-cover change to be related to impacts on biodiversity. These analyses also provided insights into relevant ecological theory relating to human impacts on forest biodiversity, specifically with respect to phenomena such as habitat fragmentation and edge effects (Newton et al, 2009). For example, in Chile, evidence was found of a positive feedback between the processes of forest fragmentation and anthropogenic disturbance within patches, the latter occurring at higher intensity in smaller patches (Echeverría et al, 2007).…”

Section: Use Of Remote Sensing In Landscape Ecology: Case Studiesmentioning

confidence: 99%

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Remote sensing and the future of landscape ecology

Newton

Hill

Echeverría

et al. 2009

Progress in Physical Geography: Earth and Environment

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126

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Landscape ecology focuses on the analysis of spatial pattern and its relationship to ecological processes. As a scientific discipline, landscape ecology has grown rapidly in recent years, supported by developments in GIS and spatial analysis techniques. Although remote sensing data are widely employed in landscape ecology research, their current and potential roles have not been evaluated critically. To provide an overview of current practice, 438 research papers published in the journal Landscape Ecology for the years 2004—2008 were examined for information about use of remote sensing. Results indicated that only 36% of studies explicitly mentioned remote sensing. Of those that did so, aerial photographs and Landsat satellite sensor images were most commonly used, accounting for 46% and 42% of studies, respectively. The predominant application of remote sensing data across these studies was for thematic mapping purposes. This suggests that landscape ecologists have been relatively slow to recognize the potential value of recent developments in remote sensing technologies and methods. The review also provided evidence of a frequent lack of key detail in studies recently published in Landscape Ecology , with 75% failing to provide any assessment of uncertainty or error relating to image classification and mapping. It is suggested that the role of remote sensing in landscape ecology might be strengthened by closer collaboration between researchers in the two disciplines, by greater integration of diverse remote sensing data with ecological data, and by increased recognition of the value of remote sensing beyond land-cover mapping and pattern description. This is illustrated by case studies drawn from Latin America (focusing on forest loss and fragmentation) and the UK (focusing on habitat quality for woodland birds). Such approaches might improve the analytical and theoretical rigour of landscape ecology, and be applied usefully to issues of outstanding societal interest, such as the impacts of environmental change on biodiversity and ecosystem services.

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Section: Use Of Remote Sensing In Landscape Ecology: Case Studiesmentioning

confidence: 99%

Section: Use Of Remote Sensing In Landscape Ecology: Case Studiesmentioning

confidence: 99%

Remote sensing and the future of landscape ecology

Newton

Hill

Echeverría

et al. 2009

Progress in Physical Geography: Earth and Environment

Self Cite

126

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“…In many areas, native forests are being subjected to intensive human disturbance, through activities such as cutting, burning and browsing by livestock. Such processes can result in forest clearance, degradation and fragmentation, and consequent loss of biodiversity (Newton 2007b;Newton et al 2009). An important element of this biodiversity is the tree species that form a key functional and structural component of forest communities.…”

Section: Introductionmentioning

confidence: 99%

Status, distribution and use of threatened tree species in the walnut-fruit forests of Kyrgyzstan

Orozumbekov

Cantarello

Newton

2014

Forests, Trees and Livelihoods

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Information is lacking on the status of threatened tree species in Central Asia. This paper aims to provide preliminary information for 10 fruit and nut tree species of Kyrgyzstan. A field survey was conducted throughout the range of walnut-fruit forests in this country, supported by a socio-economic survey. Results indicated that species differed markedly in abundance. Whereas Malus sieversii was found in all locations, four species (Crataegus pontica, Pistacia vera, Pyrus korshinskyi and Sorbus persica) were only found in a minority (#30%) of sites. Four species showed evidence of a bimodal distribution of stem diameters, which could be attributed to fuelwood harvesting, as indicated by the socio-economic survey. A majority of respondents reported a decline in the available grazing resource, a decline in the availability of harvested fruits and an increase in time required to collect fuelwood over the past decade. These results suggest that unsustainable land-use practices may be impacting negatively on populations of threatened fruit tree species. These results highlight the need to regulate local forest use to ensure that threatened fruit and nut tree species are effectively conserved, and the need for targeted actions to conserve the most threatened species, such as P. korshinskyi.

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“…However, these lost habitats could have provided ecological services to agricultural environments and if the value of tropical forests to natural pest control were more widely recognized, small-rural landowners of forest might be more likely to protect, even restore, adjacent woodlands. At a governmental level, informed politicians would be in a stronger position to legislate and enforce conservation measures (Newton et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Pest management through tropical tree conservation

et al. 2014

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Tropical trees can provide various ecological services to adjacent agricultural environments, including maintaining and amplifying the numbers of beneficial insects. In Mexico, certain tree species harbor a diverse guild of hymenopteran parasitoids that attack pest fruit flies (Diptera: Tephritidae) and are at the same time sources of valuable hardwood timber. Indigenous trees and their associated fauna are slowly disappearing due to forest clearance and the expansion of crop monocultures. Here we explore the relationship among pest and non-pest fruit flies, their fruit-hosts and parasitoids in the context of mango orchards and surrounding patches of uncultivated vegetation and propose a novel mechanism to use these associations in favor of conservation purposes and pest management. Trees of conservation biological control interest are classified as: (1) parasitoid multiplier plants, species that serve as alternate hosts for key fruit fly pests when their commercial hosts are not available, but in which they are unusually vulnerable to parasitism; (2) parasitoid reservoir plants, native or introduced trees in whose fruits non-pest fruit flies serve as hosts to generalist parasitoids that are able to attack pest tephritids in other species of commercially grown fruit; and (3) -014-0636-3 introduced species that are not economically important locally, but which harbor fruit flies that would be pests in other circumstances and that serve as hosts for parasitoids of the important pests in the vicinity. Protection, multiplication and dissemination of such tree species has the potential to increase the number of naturally produced fruit fly parasitoids and could assist in the management of tephritid pests in areas where destruction of forests has impoverished the historical sources of fruit fly natural enemies. Tropical forest conservation may help resource-poor farmers reduce crop losses, increase biodiversity within fruit-growing regions and conserve native forests for both conservation purposes and commercial use of native hardwoods.123 Biodivers Conserv (2014) 23:831-853 DOI 10.1007/s10531

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Toward Integrated Analysis of Human Impacts on Forest Biodiversity: Lessons from Latin America

Cited by 44 publications

References 89 publications

Remote sensing and the future of landscape ecology

Remote sensing and the future of landscape ecology

Status, distribution and use of threatened tree species in the walnut-fruit forests of Kyrgyzstan

Pest management through tropical tree conservation

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