A5000579948- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Ecology and Vegetation Dynamics Studies
- Amphibian and Reptile Biology
- African Botany and Ecology Studies
- Fire effects on ecosystems
- Conservation, Biodiversity, and Resource Management
- Wildlife Ecology and Conservation
- Forest Insect Ecology and Management
- Plant responses to elevated CO2
- Agroforestry and silvopastoral systems
- Land Use and Ecosystem Services
- Rangeland Management and Livestock Ecology
- Water Quality and Pollution Assessment
- Winter Sports Injuries and Performance
- Climate change and permafrost
- International Maritime Law Issues
- Forest Management and Policy
- Smart Materials for Construction
- Aquatic Ecosystems and Biodiversity
- Atmospheric and Environmental Gas Dynamics
- Health and Conflict Studies
- Tree Root and Stability Studies
- Ethnobotanical and Medicinal Plants Studies
- Transboundary Water Resource Management
Dana-Farber/Harvard Cancer Center
2015-2024
Harvard University
2015-2024
University of Massachusetts Amherst
2015-2024
University of Khartoum
2016-2024
Northwest A&F University
2021-2023
University of Freiburg
2017
University of British Columbia
2016
Abstract Disturbances such as outbreaks of herbivorous insects and pathogens can devastate unique habitats directly reduce biodiversity. The foundation tree species Tsuga canadensis (eastern hemlock) is declining due to infestation by the nonnative insect Adelges tsugae (hemlock woolly adelgid). decline expected elimination hemlock from northeastern U.S. forests changing forest structure, function, assemblages associated species. We assessed 10 years changes in occupancy, detection...
Herpetologists and conservation biologists frequently use convenient cost-effective, but less accurate, abundance indices (e.g., number of individuals collected under artificial cover boards or during natural objects surveys) in lieu more costly destructive, population size estimators to detect monitor size, state, trends amphibian populations. Although there are advantages disadvantages each approach, reliable requires that they be calibrated with accurate estimators. Such calibrations,...
Long-term ecological research (LTER) and monitoring programs accrue invaluable data that inform policy improve decisions enable adaptation to mitigation of environmental changes. There is great interest in identifying indicators can be monitored easily effectively yield reliable about changes forested ecosystems. However, the selection, use, validity monitor LTER remain challenging tasks for ecologists conservation biologists. Across eastern United States America, foundation tree species...
We carried out this research at Abu-Gaddaf Natural Forest Reserve (ANFR) which is located east of Blue Nile River, in State, Sudan. It aims exploring tree composition assessing their diversity indices, and ecological importance values. For survey types estimation density species the forest, we randomly distributed 97 circular sample plots (0.1 hectare (ha)). In each plot identified all trees to level, recorded frequencies computed value indices (IVI). A total 13 species, belong 12 genera...
Mangroves of the Red Sea and Gulf Aden is a regional ecosystem subgroup (level 4 unit IUCN Global Ecosystem Typology). It includes marine eco-regions Aden, Northern Central Sea, Southern extends across Saudi Arabia, Egypt, Sudan, Yemen, Eritrea, Djibouti Somalia. The biota characterized by two species true mangroves namely; Avicennia marina Rhizophora mucronata. Both are classified as Least Concern. threatened cattle grazing, oil solid wastes pollution, coastal development, heat waves...
Hemlock forests of the northeastern United States are declining due to invasive hemlock woolly adelgid (HWA) (Adelges tsugae). Hardwood species replace these forests, which affects soil properties that may influence other communities, such as red-backed salamanders (red-backs) (Plethodon cinereus). This study examined effects HWA invasion on and how this red-backs at Removal Experiment Harvard Forest, consists eight 0.8 ha plots treated with girdling simulate invasion, logging common...
Climate change scenarios project that several regions, especially in dryland areas of sub-Saharan Africa, will undergo increasing aridity and, subsequently, expanding land degradation. The study aims to investigate the effect two drying treatments on establishing and growing Hashab (Acacia senegal) Boabab (Adansonia digitata) nursery conditions. Through a 2×2 factorial experiment, seedlings grown mixture silt sand soil (2:3) were treated by irrigation intervals one or liters every three days...
The aim of this study is to investigate the impact temperature trend on glacier-mass balance, snow density, snowmelt, depth and runoff by using observations nine glacier stations that covered most China over period 1979-2013. Trend analysis showed an increasing all selected stations. On average, was at rate 0.46/10a. a negative relationship with annual balance caused decrease in balance. Results Pearson’s correlation highly significant between density (correlation coefficient (CC = -0.661...
Military coups (MCs) continue to occur in developing countries with alarming frequency; the current coup Sudan being most recent. Regardless of arguments and rationales behind coups, there is a wide global consensus that pose devastating threats countries’ development surrounding regions. In this short essay, we report our own view on impacts consequences military crackdown its effects scientists Sudan. We conclude some thoughts for future. A particular emphasis ongoing internet blockade...
Globally, mountains encompass spectacular landscapes and a great diversity of species. However, Savannah’s in Sudan have been affected by the loss due to human activities climate changes. Therefore, this study aims assess changes wildlife Jebel-Eldair Nation Park (JENP) based on only reports from patrolling activities, especially absence regular monitoring programs. Reports monthly observations during trips were used for summer season 2010 2018. Findings showed moderate high decline most...