Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation

The interactions between climate and land-use change are dictating the distribution of flora and fauna and reshuffling biotic community composition around the world. Tropical mountains are particularly sensitive because they often have a high human population density, a long history of agriculture,...

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Autores:
Tipo de recurso:
Fecha de publicación:
2019
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/24159
Acceso en línea:
https://doi.org/10.1111/gcb.14618
https://repository.urosario.edu.co/handle/10336/24159
Palabra clave:
Agriculture
Forest dynamics
Land cover
Land use
Modis
Regeneration
Satellite imagery
Vegetation dynamics
Andes
Colombia
Biodiversity
Colombia
Ecosystem
Forest
Satellite imagery
South america
Tree
Tropic climate
Validation study
Biodiversity
Colombia
Ecosystem
Forests
Satellite imagery
South america
Trees
Tropical climate
Agriculture
Coupled natural human systems
Expert validation
Forest loss and regeneration
Modis satellite imagery
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License
Abierto (Texto Completo)
id EDOCUR2_1aaa5c5c965882a0ae8feaada7977e71
oai_identifier_str oai:repository.urosario.edu.co:10336/24159
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
dc.title.spa.fl_str_mv Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
title Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
spellingShingle Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
Agriculture
Forest dynamics
Land cover
Land use
Modis
Regeneration
Satellite imagery
Vegetation dynamics
Andes
Colombia
Biodiversity
Colombia
Ecosystem
Forest
Satellite imagery
South america
Tree
Tropic climate
Validation study
Biodiversity
Colombia
Ecosystem
Forests
Satellite imagery
South america
Trees
Tropical climate
Agriculture
Coupled natural human systems
Expert validation
Forest loss and regeneration
Modis satellite imagery
title_short Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
title_full Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
title_fullStr Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
title_full_unstemmed Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
title_sort Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
dc.subject.keyword.spa.fl_str_mv Agriculture
Forest dynamics
Land cover
Land use
Modis
Regeneration
Satellite imagery
Vegetation dynamics
Andes
Colombia
Biodiversity
Colombia
Ecosystem
Forest
Satellite imagery
South america
Tree
Tropic climate
Validation study
Biodiversity
Colombia
Ecosystem
Forests
Satellite imagery
South america
Trees
Tropical climate
Agriculture
Coupled natural human systems
Expert validation
Forest loss and regeneration
Modis satellite imagery
topic Agriculture
Forest dynamics
Land cover
Land use
Modis
Regeneration
Satellite imagery
Vegetation dynamics
Andes
Colombia
Biodiversity
Colombia
Ecosystem
Forest
Satellite imagery
South america
Tree
Tropic climate
Validation study
Biodiversity
Colombia
Ecosystem
Forests
Satellite imagery
South america
Trees
Tropical climate
Agriculture
Coupled natural human systems
Expert validation
Forest loss and regeneration
Modis satellite imagery
description The interactions between climate and land-use change are dictating the distribution of flora and fauna and reshuffling biotic community composition around the world. Tropical mountains are particularly sensitive because they often have a high human population density, a long history of agriculture, range-restricted species, and high-beta diversity due to a steep elevation gradient. Here we evaluated the change in distribution of woody vegetation in the tropical Andes of South America for the period 2001–2014. For the analyses we created annual land-cover/land-use maps using MODIS satellite data at 250 m pixel resolution, calculated the cover of woody vegetation (trees and shrubs) in 9,274 hexagons of 115.47 km 2 , and then determined if there was a statistically significant (p  and lt; 0.05) 14 year linear trend (positive—forest gain, negative—forest loss) within each hexagon. Of the 1,308 hexagons with significant trends, 36.6% (n = 479) lost forests and 63.4% (n = 829) gained forests. We estimated an overall net gain of ~500,000 ha in woody vegetation. Forest loss dominated the 1,000–1,499 m elevation zone and forest gain dominated above 1,500 m. The most important transitions were forest loss at lower elevations for pastures and croplands, forest gain in abandoned pastures and cropland in mid-elevation areas, and shrub encroachment into highland grasslands. Expert validation confirmed the observed trends, but some areas of apparent forest gain were associated with new shade coffee, pine, or eucalypt plantations. In addition, after controlling for elevation and country, forest gain was associated with a decline in the rural population. Although we document an overall gain in forest cover, the recent reversal of forest gains in Colombia demonstrates that these coupled natural-human systems are highly dynamic and there is an urgent need of a regional real-time land-use, biodiversity, and ecosystem services monitoring network. © 2019 The Authors. Global Change Biology Published by John Wiley and Sons Ltd
publishDate 2019
dc.date.created.spa.fl_str_mv 2019
dc.date.accessioned.none.fl_str_mv 2020-05-26T00:09:24Z
dc.date.available.none.fl_str_mv 2020-05-26T00:09:24Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1111/gcb.14618
dc.identifier.issn.none.fl_str_mv 13652486
13541013
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/24159
url https://doi.org/10.1111/gcb.14618
https://repository.urosario.edu.co/handle/10336/24159
identifier_str_mv 13652486
13541013
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 2126
dc.relation.citationIssue.none.fl_str_mv No. 6
dc.relation.citationStartPage.none.fl_str_mv 2112
dc.relation.citationTitle.none.fl_str_mv Global Change Biology
dc.relation.citationVolume.none.fl_str_mv Vol. 25
dc.relation.ispartof.spa.fl_str_mv Global Change Biology, ISSN:13652486, 13541013, Vol.25, No.6 (2019); pp. 2112-2126
dc.relation.uri.spa.fl_str_mv https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065473675&doi=10.1111%2fgcb.14618&partnerID=40&md5=6886f2fec1550a9fbde9344cf761cae3
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.acceso.spa.fl_str_mv Abierto (Texto Completo)
rights_invalid_str_mv Abierto (Texto Completo)
http://purl.org/coar/access_right/c_abf2
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Blackwell Publishing Ltd
institution Universidad del Rosario
dc.source.instname.spa.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.spa.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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spelling 7ee4a2dd-f583-4705-ab97-a6b5e21db1b647e898e4-24c7-4801-b065-06b268a0a86de4ff060c-b61d-426b-9544-8f21ed4830c00df8362d-a288-4940-a2f0-ce4bc43d5649da6739af-a128-4e9a-acf3-8582d8bc762815100dfc-413c-4cdf-9194-c22244553128010670dd-3cf0-45c7-ba38-4345920b09ee260528f5-626f-4901-8799-9432c40cff75e1b54d1f-181e-4f65-acc6-d156a87d80d71fa480d2-0585-4522-a0b6-2b98b8395691d476c139-7dec-40f2-b27f-309d4507a6f90ba82243-2a08-4d16-b443-72653de11a3ff5f607a5-b745-4a3e-9b82-016e28435ca752699585600dd624653-9788-468c-b44d-9572069c17fe3b7a0e6b-75fe-4893-99b8-c7c7b98669165fcc6254-cfaf-403c-9bfb-5e22dd985c102020-05-26T00:09:24Z2020-05-26T00:09:24Z2019The interactions between climate and land-use change are dictating the distribution of flora and fauna and reshuffling biotic community composition around the world. Tropical mountains are particularly sensitive because they often have a high human population density, a long history of agriculture, range-restricted species, and high-beta diversity due to a steep elevation gradient. Here we evaluated the change in distribution of woody vegetation in the tropical Andes of South America for the period 2001–2014. For the analyses we created annual land-cover/land-use maps using MODIS satellite data at 250 m pixel resolution, calculated the cover of woody vegetation (trees and shrubs) in 9,274 hexagons of 115.47 km 2 , and then determined if there was a statistically significant (p  and lt; 0.05) 14 year linear trend (positive—forest gain, negative—forest loss) within each hexagon. Of the 1,308 hexagons with significant trends, 36.6% (n = 479) lost forests and 63.4% (n = 829) gained forests. We estimated an overall net gain of ~500,000 ha in woody vegetation. Forest loss dominated the 1,000–1,499 m elevation zone and forest gain dominated above 1,500 m. The most important transitions were forest loss at lower elevations for pastures and croplands, forest gain in abandoned pastures and cropland in mid-elevation areas, and shrub encroachment into highland grasslands. Expert validation confirmed the observed trends, but some areas of apparent forest gain were associated with new shade coffee, pine, or eucalypt plantations. In addition, after controlling for elevation and country, forest gain was associated with a decline in the rural population. Although we document an overall gain in forest cover, the recent reversal of forest gains in Colombia demonstrates that these coupled natural-human systems are highly dynamic and there is an urgent need of a regional real-time land-use, biodiversity, and ecosystem services monitoring network. © 2019 The Authors. Global Change Biology Published by John Wiley and Sons Ltdapplication/pdfhttps://doi.org/10.1111/gcb.146181365248613541013https://repository.urosario.edu.co/handle/10336/24159engBlackwell Publishing Ltd2126No. 62112Global Change BiologyVol. 25Global Change Biology, ISSN:13652486, 13541013, Vol.25, No.6 (2019); pp. 2112-2126https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065473675&doi=10.1111%2fgcb.14618&partnerID=40&md5=6886f2fec1550a9fbde9344cf761cae3Abierto (Texto Completo)http://purl.org/coar/access_right/c_abf2instname:Universidad del Rosarioreponame:Repositorio Institucional EdocURAgricultureForest dynamicsLand coverLand useModisRegenerationSatellite imageryVegetation dynamicsAndesColombiaBiodiversityColombiaEcosystemForestSatellite imagerySouth americaTreeTropic climateValidation studyBiodiversityColombiaEcosystemForestsSatellite imagerySouth americaTreesTropical climateAgricultureCoupled natural human systemsExpert validationForest loss and regenerationModis satellite imageryWoody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validationarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Aide, T. MitchellGrau, H. RicardoGraesser, JordanAndrade?Nuñez, Maria JoseAráoz, EzequielBarros, Ana P.Campos?Cerqueira, MarconiChacon?Moreno, EulogioCuesta, FranciscoEspinoza, RaulPeralvo, ManuelPolk, Molly H.Rueda, XimenaSánchez Andrade, AdrianaYoung, Kenneth R.Zarbá, LucíaZimmerer, Karl S.10336/24159oai:repository.urosario.edu.co:10336/241592022-05-02 07:37:17.318061https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co