Conservation Planning in Anthropogenic Landscapes

Echeverry, James Rodríguez

doi:10.19080/ecoa.2019.01.555552

ECOA

2019

DOI: 10.19080/ecoa.2019.01.555552

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Conservation Planning in Anthropogenic Landscapes

James Rodríguez Echeverry¹

Abstract: Landscape-scale conservation planningLandscape-scale conservation planning is closely related to the field of landscape ecology. Over the last decade, I have seen an increased emphasis on landscape perspectives in environmental planning at multiple scales because maintaining and restoring key landscape elements at multiple spatial scales may be critical in sustaining a wide range of ecosystem functions and services. Consequently, landscape-scale conservation planning offers

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Cited by 2 publications

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Assessing the Landscape Pattern and Population Status of the Timber Species Mansonia altissima A. Chev. For Restoration Purposes in Moist Semi-Deciduous Forest

Wédjangnon

Hountondji

Ouinsavi

2020

Journal of Landscape Ecology

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AbstractMansonia altissima A. Chev., a redwood producer species in tropical Africa, occurs as one small, isolated population in a highly anthropized landscape in Republic of Benin. We accessed the landscape pattern and population status to inform restauration action for the species. We established 20 one-ha permanent plots divided in 320 subplots (25 m × 25 m) in-situ and counted and measured M. altissima plants with diameter ≥ 1cm at base and 1.30 m above ground (DBH) in February 2017, 2018 and 2019. Based on the main disturbance factors, such as fire, human-caused damage to seedlings, harvesting of wood for fuel, and agriculture, we assigned the plots to one of three disturbance levels: poor, moderate, and strong. We grouped the plants into four life stages according to diameter size (cm): seedling (1 ≤ DBH < 5), sapling (5 ≤ DBH < 10), premature (10 ≤ DBH < 20), and mature (DBH ≥ 20). We used Landsat data of years 1986, 2002 and 2017 to quantify and analyze landscape changes and fragmentation. Results showed that the landscape was dramatically changed and fragmented between 2002 and 2017 due to disturbance increase. Semi-deciduous forest (SDF) containing M. altissima decreased, whereas woodlands and savannas increased. SDF was severely fragmented and disaggregated. In plots with strong disturbance, mortality rate was higher, whereas in plots with poor disturbance, it was lower and recruitment was highest. Mortality rate differed significantly among life stages and disturbance levels. Experimental restoration is required to identify locations where the species can establish young viable populations. Fire and other anthropogenic disturbance have to be controlled to ensure this natural population can provide seeds for restoration and conservation projects.

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Assessing the Landscape Pattern and Population Status of the Timber Species Mansonia altissima A. Chev. For Restoration Purposes in Moist Semi-Deciduous Forest

Wédjangnon

Hountondji

Ouinsavi

2020

Journal of Landscape Ecology

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State of the Landscape and Dynamics of Loss and Fragmentation of Forest Critically Endangered in the Tropical Andes Hotspot: Implications for Conservation Planning

Rodríguez-Echeverry¹,

Leiton²

2021

Journal of Landscape Ecology

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Currently, there is no precise information on the degree of transformation of Tropical Andes hotspot landscape and native ecosystems due to the intensification of agricultural and urban land-use. Proper knowledge of these changes would provide crucial information for planning conservation strategies. We evaluated the impact of the intensification of agricultural and urban land-use on the Inter-Andean Dry Forest and Tropical Montane Forest, both of which are categorized as Critically Endangered, and the state of the landscape in the High Rio Guayllabamba watershed, Ecuador, during the periods 1991–2005 and 2005–2017. The evaluation was carried out using Landsat satellite images of 30 x 30 m pixels and landscape metrics. We found an advanced state of landscape transformation. Since the 1990s, the loss of both ecosystems was largely caused by the conversion of forest to agriculture, resulting in substantial changes in the spatial configuration of these ecosystems. From 1991 to 2017, 19.8 % and 16.1 % of Inter-Andean Dry Forest and Tropical Montane Forest respectively, were converted to agriculture. The loss of Inter-Andean Dry Forest was 28 % and the number of forest patches increased by more than 150%. The loss of Tropical Montane Forest was 16.5 % and the number of forest patches increased by more than 300 %. The largest loss and fragmentation of forest cover occurred from 1991 to 2005. We suggested planning landscape-scale conservation, using the patch-corridor-matrix model. This model is appropriate given the current configuration of the landscape studied, with Inter-Andean Dry Forest and Tropical Montane Forest restricted to small patches sparsely distributed across the landscape.

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Conservation Planning in Anthropogenic Landscapes

Cited by 2 publications

References 8 publications

Assessing the Landscape Pattern and Population Status of the Timber Species Mansonia altissima A. Chev. For Restoration Purposes in Moist Semi-Deciduous Forest

Assessing the Landscape Pattern and Population Status of the Timber Species Mansonia altissima A. Chev. For Restoration Purposes in Moist Semi-Deciduous Forest

State of the Landscape and Dynamics of Loss and Fragmentation of Forest Critically Endangered in the Tropical Andes Hotspot: Implications for Conservation Planning

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