Mapping, Remote Sensing, and GIS
Spatial density patterns of herbivore response to seasonal dynamics in the tropical deciduous forest of central IndiaBackgroundStrong seasonality of dry tropical forests causes variations in vegetation and therefore food resources for animals. This study investigates the seasonal distribution patterns between summer and winter of four ungulate species (Rusa unicolor, Axis axis, Bocephalus tragocamelus, and Sus scrofa) in the Panna Tiger Reserve in India. Ungulates tend to gravitate towards areas that are cooler with more vegetation, and at higher elevations. Available with subscription or purchase |
Out of steady state: Tracking canopy gap dynamics across Brazilian AmazonBackgroundCanopy gaps are a regular characteristic of natural or anthropogenic disturbance in forested landscapes. Gap-creating disturbances often result in a forest mosaic with patches of varying successional stages. Many species in tropical forests depend on these canopy gaps for regeneration. Field monitoring of canopy gaps can be difficult due to time constraints and plot size, making tropical gap dynamics an understudied topic. Available with subscription or purchase |
A tree-based approach to biomass estimation from remote sensing data in a tropical agricultural landscapeIntroductionDue to increasing agricultural landcover throughout the world, it is critical to develop methods that estimate above ground biomass and carbon in order to accurately monitor terrestrial carbon stocks and predicting carbo dynamics. This paper claims that while active remote sensing data may be a means to achieve these estimates, the plot-based methods may not be suitable for these agricultural areas. Thus, the authors seek an alternative. Available with subscription or purchase |
The biogeochemical heterogeneity of tropical forestsBackgroundThis paper states that there has been a breadth of knowledge in relation to the biodiversity of tropical forests but limited about on the abiotic diversity, particularly biogeochemical effects. These later factors are becoming increasingly important to understand due to human perturbations in these forests. Open access copy available |
Leverage points for improving global food security and the environmentBACKGROUNDMeeting global food demands is still a challenge, yet agriculture has been one of the main driving forces of greenhouse gas emissions. Hence, this study focused on identifying small regions, actions that can be taken and crops with a potential of increasing global yields, with an efficient system of food delivery and reducing the negative impacts of agriculture on the environment. Open access copy available |
Asymmetric density dependence shapes species abundances in a tropical tree communityBackgroundThis study examined the question: why are some species common in tropical rainforests while others are rare? Goals & MethodsThe research, which used a computer modeling approach to analyze data from 20,000 1-meter squared plots, examined the degree to which being close to another individual of the same species affected the studied individual's overall abundance. Available with subscription or purchase |
Advances in remote sensing technology and implications for measuring and monitoring forest carbon stocks and changeBackgroundUsing satelite images to monitor forest cover has advanced significantly in the past few decades but it still requires time to move into operation readiness. This article contributes to this progress through discussing how new technologies (i.e. improved satelite images and Lidar) can be used to improve monitoring of above ground carbon estimates. It specifically focusses on using Lidar technology and how moving Lidar devices from moving planes to satelite equipment could improve Carbon stock estimates. Open access copy available |
National Potential and Priority Maps for Tree-Based Landscape Restoration in EthiopiabackgroundThis technical report was created by Ethiopia's Ministry of Environment, Forest, and Climate Change (MEFCC) and the World Resources Institute (WRI) as a first step in Ethiopia's large-scale forest restoration efforts aimed to improve livelihoods and address climate change. Open access copy available |
Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South KoreaBackgroundSouth Korea's reforestation efforts since the 1950s have been evaluated for changes in biomass, area, and growing stock, but little has been done to study the phenology changes (seasonal changes) and photosynthetic activity, which will help in the preparation of new forest management in light of climate change. Open access copy available |
A tree-based approach to biomass estimation from remote sensing data in a tropical agricultural landscapebackgroundDue to increased global dominance of agricultural lands in the tropics, methods to establish biomass and carbon in agricultural areas are necessary for monitoring and modeling global C stocks. Since tropical agriculture often includes some tree cover, the study seeks to develop above ground biomass estimates using landscape-scale surveys with LiDAR in comparison to plot-level data. Available with subscription or purchase |
