Open access copy available
Canal blocking strategies for hydrological restoration of degraded tropical peatlands in Central Kalimantan, IndonesiaBackgroundIn the 1990s, the Government of Indonesia sponsored the construction of thousands of km of canals in 1 million Ha of peatlands of Central Kalimantan to drain the peatlands for conversion to agriculture. The project over-drained the peatlands, leaving it unusable agriculturally and subject to fires and subsidence. Existing efforts to dam the canals to return the water table to previous levels have failed. Open access copy available |
Land Cover Change in Colombia: Surprising Forest Recovery Trends between 2001 and 2010backgroundThis study mapped annual land-use and land-cover from 2001 to 2010 in Colombia using MODIS (250 m) products coupled with reference data from high spatial resolution imagery (QuickBird) in Google Earth. Research Goals & MethodsThe authors evaluated land cover change at four spatial scales: country, biome, ecoregion, and municipality. Open access copy available |
Effects of Invasive Alien Plants on Fire RegimesBackgroundThis article considers how invasive plant species affect native ecosystems by altering fuel properties, fire behavior and fire regime characteristics. These may impact the ability of a site to restore to its previous state. Open access copy available |
Variation in the Population Structure Between a Natural and a Human-Modified Forest for a Pioneer Tropical Tree Species not Restricted to Large GapsBackgroundThe study was conducted in a permanent plot in a primary forest at Caetetus Ecological Station (CES), and in an early successional forest adjacent to the state reserve at Torrão de Ouro Farm, state of São Paulo, Southeast Brazil. This forest originally covered nearly the entire plateau in the state of São Paulo, and it is currently the most threatened forest in the State due to past fragmentation. Open access copy available |
Teak (Tectona grandis Linn. f): Its Natural Distribution and Related FactorsbackgroundThis paper provides an introduction to the distribution and growth of teak in its natural habitat in India, Burma, Thailand and Laos. Open access copy available |
Drug Policy as Conservation Policy: Narco-DeforestationBackgroundCentral America exploded into prominence as a drug trafficking corridor in the last decade. The authors document that an unprecedented flow of cocaine into Central America “coincided with a period of extensive forest loss”. The authors discuss the evidence that supports the idea that "trafficking of drugs (principally cocaine) has become a crucial—and overlooked—accelerant of forest loss” in Central America. Open access copy available |
Sixty-Seven Years of Land-Use Change in Southern Costa RicaBackgroundHabitat loss and fragmentation of forests are among the biggest threats to biodiversity and associated ecosystem services in tropical landscapes. This paper uses the vicinity of the Las Cruces Biological Station in southern Costa Rica as a regional case study to comment on seven decades of land-use change in one of the most intensively studied sites in the Neotropics. Open access copy available |
Functional Diversity Changes during Tropical Forest SuccessionbackgroundThis paper evaluates changes in species richness and functional diversity during tropical secondary forest succession following shifting cultivation in Chiapas, Mexico. It examines whether speces richness is a good predictor of functional diversity. Research Goals & MethodsFunctional diversity was calculated based on a combination of nine functional traits and two individual traits important for primary production: specific leaf area and carbon sequestration (wood density). Open access copy available |
Identifying Hotspots of Deforestation and Reforestation in Colombia (2001–2010): Implications for Protected AreasbackgroundThis article uses satellite imagery, MODIS MOD13Q1 Vegetation Indices 250 , the Virtual Interpretation of EarthWeb-Interface Tool (VIEW-IT) to conduct a land-use analysis of Colombia, mapping trends and "hotspot" areas of deforestation and of reforestation from 2001 to 2010. Research Goals & MethodsThe authors identify four hotspots of deforestation (clustered particularly in lowlands in the north of the country) and four of reforestation, mainly in the Andes highlands. Open access copy available |
The Role of Silvopastoral Systems in the Rehabilitation of Andean Stream HabitatsbackgroundThis article discusses the prevalence and impact of cattle grazing in the Andean region of Colombia. It asserts that ranching drastically alters the oxygen demand of and pH of streams, increases algae growth, and reduces light penetration. Ranching also damages stream flow and riverbanks, leading to higher erosion and run-off. Grasslands on previously forested areas have led to compaction of soil so that there is less infiltration leading to more run-off, floods due to increased speeds and volume, and less water in the streams during the dry season. Open access copy available |
