Sandy Andelman

Sandy Andelman
Wildlife Conservation Society | WCS · Center for Global Conservation

Doctor of Philosophy

About

120
Publications
77,048
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17,455
Citations
Citations since 2016
15 Research Items
7006 Citations
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201620172018201920202021202202004006008001,000
201620172018201920202021202202004006008001,000

Publications

Publications (120)
Article
Full-text available
Sustainable water resource management is a wicked problem, fraught with uncertainties, an indeterminate scope, and divergent social values and interests among stakeholders. To facilitate better management of Southeast Asia’s transboundary Sesan, Sekong and Srepok (3S) River basin, we used the Freshwater Health Index (FHI) to diagnose the basin’s cu...
Article
Identifying the underlying drivers of species’ distributional dynamics is critical for predicting change and managing biological diversity. While anthropogenic factors such as climate change can affect species distributions through time, other naturally occurring ecological processes can also have an influence. Theory predicts that interactions bet...
Article
Full-text available
Degradation of freshwater ecosystems and the services they provide is a primary cause of increasing water insecurity, raising the need for integrated solutions to freshwater management. While methods for characterizing the multi-faceted challenges of managing freshwater ecosystems abound, they tend to emphasize either social or ecological dimension...
Technical Report
Full-text available
Supporting a population of about 3.4 million people, the Sekong, Sesan and Srepok (3S) Rivers form an important sub-catchment of the lower Mekong and represent a microcosm of the challenges faced by the entire Mekong River basin. Covering just 10% of the Mekong Basin, the 3S rivers provide almost a quarter of the Mekong’s total discharge and nearly...
Technical Report
Full-text available
Supporting a population of about 3.4 million people, the Sesan, Srepok and Sekong (3S) Rivers form an important sub-catchment of the lower Mekong and represent a microcosm of the challenges faced by the entire Mekong River basin. Covering just 10% of the Mekong Basin, the 3S rivers provide almost a quarter of the Mekong's total discharge and nearly...
Poster
Full-text available
The Freshwater Health Index (FHI) is a decision support tool developed by Conservation International and partners, that helps societies manage and conserve freshwater systems. We define freshwater health as the ability to deliver water-related ecosystem services, sustainably and equitably, at the drainage basin scale. It is implicit that sustainabl...
Technical Report
Full-text available
ទន្លេសេសាន ទន្លេស្រែពក និងទន្លេសេកុង(3􀃝) បង្កើតបានជាអាងទឹក ដ៏សំខាន់នៃទន្លេមេគង្គក្រោម និងតំណាងឱ្យអាងទន្លេមេគង្គទាំងមូល ដែលអាចទ្រទ្រង់ជីវភាពរបស់ប្រជាពលរដ្ឋប្រមាណ ៣,៤ លាននាក់។ ទន្លេទាំងបីគ្របដណ្តប់ អាងទន្លេមេគង្គប្រមាណ១០% ផ្តល់ទឹកជិត មួយភាគបី(១/៣) នៃទឹកហូរចាក់សរុបចូលអាងទន្លេមេគង្គ និងផ្តល់ ដីល្បាប់ទន្លេប្រមាណជិត១៥% នាំនូវជីវជាតិដល់បឹងទន្លេសាប និង ជលផ...
Article
A vibrant, resilient and productive agricultural sector is fundamental to achieving the Sustainable Development Goals. Bringing about such a transformation requires optimizing a range of agronomic, environmental and socioeconomic outcomes from agricultural systems – from crop yields, to biodiversity, to human nutrition. However, these outcomes are...
Article
Full-text available
Quantitative indicators are a common means of assessing the complex dimensions of a sustainable freshwater system, and framing scientific knowledge for policy and decision makers. There is an abundance of indicators in use, but considerable variation in terms of what is being measured and how indicators are applied, making it difficult for end-user...
Article
Full-text available
The conservation of tropical forest carbon stocks offers the opportunity to curb climate 43 change by reducing greenhouse gas emissions from deforestation and simultaneously conserve 44 biodiversity. However, there has been considerable debate about the extent to which carbon 45 storage will provide benefits to biodiversity in part because whether...
Article
Full-text available
Extinction rates in the Anthropocene are three orders of magnitude higher than background and disproportionately occur in the tropics, home of half the world’s species. Despite global efforts to combat tropical species extinctions, lack of high-quality, objective information on mammals and birds, representing 244 species from 15 tropical forest pro...
Article
Full-text available
The conservation of tropical forest carbon stocks offers the opportunity to curb climate change by reducing greenhouse gas emissions from deforestation and simultaneously conserve biodiversity. However, there has been considerable debate about the extent to which carbon storage will provide benefits to biodiversity in part because whether forests t...
Article
Full-text available
An age-old conflict around a seemingly simple question has resurfaced: why do we conserve nature? Contention around this issue has come and gone many times, but in the past several years we believe that it has reappeared as an increasingly acrimonious debate between, in essence, those who argue that nature should be protected for its own sake (intr...
Conference Paper
Background/Question/Methods This research seeks to understand how alpha diversity, wood density, and aboveground biomass (AGB) of trees varies along an elevation gradient in Braulio Carrillo National Park in Costa Rica. Utilizing forest inventory and botanical data from 20 1-ha plots ranging from <100 m to 2800 m above sea level and remote sensin...
Article
We examined (1) the relationships between aboveground tropical forest C storage, biodiversity and environmental drivers and (2) how these relationships inform theory concerning ecosystem function and biodiversity. Experiments have shown that there is a positive relationship between biodiversity and ecosystem functioning, but intense debate exists o...
Article
Full-text available
2013. The contributions of regional knowledge networks researching environmental changes in Latin America and Africa: a synthesis of what they can do and why they can be policy relevant. Ecology and Society 18(3): ABSTRACT. We provide a synthesis of what regional scientific research networks in less developed regions of the world can do and why the...
Article
Full-text available
Landscape degradation, soil depletion, scarcity of water and fuel resources are common threats to ecosystem services, agricultural production and human livelihoods in the developing world. Observatory or monitoring networks which focus on the dynamics of coupled human-natural systems are challenged by scarce data, data heterogeneity across multiple...
Article
Full-text available
Earth's life-support systems are in flux, yet no centralized system to monitor and report these changes exists. Recognizing this, 77 nations agreed to establish the Group on Earth Observations (GEO). The GEO Biodiversity Observation Network (GEO BON) integrates existing data streams into one platform in order to provide a more complete picture of E...
Conference Paper
Background/Question/Methods This research sought to understand how alpha and beta diversity of plants vary and relate to the three-dimensional vegetation structure and functional diversity along environmental gradients in the tropical montane forests of Braulio Carrillo National Park in Costa Rica. There is growing evidence that ecosystem structu...
Conference Paper
Background/Question/Methods Despite a historical interest in the relationship between biodiversity and ecosystem functioning (BD-EF), many questions remain regarding the relationships and interactions among environmental drivers, biodiversity, and ecosystem function, particularly for tropical forest ecosystems. Our ability to predict and manage t...
Conference Paper
Background/Question/Methods Implementing the Tropical Ecology, Assessment and Monitoring (TEAM) Network - a global-scale, standardized, distributed monitoring system for biodiversity and ecosystem services presents challenges for field identification, verification and methodological quality control. At the same time, achieving adequate coverage o...
Article
Full-text available
Aim In recent years evidence has accumulated that plant species are differentially sorted from regional assemblages into local assemblages along local-scale environmental gradients on the basis of their function and abiotic filtering. The favourability hypothesis in biogeography proposes that in climatically difficult regions abiotic filtering shou...
Article
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Environmental-monitoring and observatory networks currently operating or under development at the national, regional, and global scales have the potential to provide an unprecedented understanding of our natural environment and the threats that endanger it. The breadth of these networks, as well as advances in technology (e.g., from mobile devices...
Article
Full-text available
The development of effective agricultural monitoring networks is essential to track, anticipate and manage changes in the social, economic and environmental aspects of agriculture. We welcome the perspective of Lindenmayer and Likens (J. Environ. Monit., 2011, 13, 1559) as published in the Journal of Environmental Monitoring on our earlier paper, "...
Article
Aims The long-term effects of changing fire regimes on the herbaceous component of savannas are poorly understood but essential for understanding savanna dynamics. We present results from one of the longest running (>44 years) fire experiments in savannas, the experimental burn plots (EBPs), which is located in the Kruger National Park (South Afric...
Article
Full-text available
The huge conservation interest that mammals attract and the large datasets that have been collected on them have propelled a diversity of global mammal prioritization schemes, but no comprehensive global mammal conservation strategy. We highlight some of the potential discrepancies between the schemes presented in this theme issue, including: conse...
Article
Full-text available
Terrestrial mammals are a key component of tropical forest communities as indicators of ecosystem health and providers of important ecosystem services. However, there is little quantitative information about how they change with local, regional and global threats. In this paper, the first standardized pantropical forest terrestrial mammal community...
Article
The rich ecology of tropical forests is intimately tied to their moisture status. Multi-site syntheses can provide a macro-scale view of these linkages and their susceptibility to changing climates. Here, we report pan-tropical and regional-scale analyses of tree vulnerability to drought. We assembled available data on tropical forest tree stem mor...
Article
*The rich ecology of tropical forests is intimately tied to their moisture status. Multi-site syntheses can provide a macro-scale view of these linkages and their susceptibility to changing climates. Here, we report pan-tropical and regional-scale analyses of tree vulnerability to drought. *We assembled available data on tropical forest tree stem m...
Article
Full-text available
To feed the world without further damaging the planet, Jeffrey Sachs and 24 foodsystem experts call for a global data collection and dissemination network to track the myriad impacts of different farming practices.
Article
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Quantitative measurements of changes in tropical biodiversity are sparse, despite wide agreement that maintaining biodiversity is a key conservation goal. Pan-tropical networks to systematically measure plot-level biodiversity are currently being developed to close this gap. We propose that a key component of such networks is the monitoring of huma...
Article
The reliable detection of reproductive events in free-ranging primates is usually not feasible because of the difficulty of obtaining physiological measures in the field. Utilizing a non-invasive technique, urine was collected from wild Vervet monkeys in Amboseli National Park, Kenya. Measurement of pregnanediol-3α-glucuronide levels in urine of fe...
Article
The objective of the Tropical Ecology Assessment and Monitoring Network (www.teamnetwork.org) is "To generate real time data for monitoring long-term trends in tropical biodiversity through a global network of TEAM sites (i.e. field stations in tropical forests), providing an early warning system on the status of biodiversity to effectively guide c...
Article
Full-text available
Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drough...
Article
The objective of the Tropical Ecology Assessment and Monitoring Network (www.teamnetwork.org) is "To generate real time data for monitoring long-term trends in tropical biodiversity through a global network of TEAM sites (i.e. field stations in tropical forests), providing an early warning system on the status of biodiversity to effectively guide c...
Article
Full-text available
Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drough...
Article
Full-text available
This article was submitted without an abstract, please refer to the full-text PDF file.
Article
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This article was submitted without an abstract, please refer to the full-text PDF file.
Article
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Madagascar's imperilled biota are now experiencing the effects of a new threat—climate change ([Raxworthy et al . 2008][1]). With more than 90% endemism among plants, mammals, reptiles and amphibians, the stakes are high. The pristine landscapes that allowed this exceptional biodiversity to
Article
Full-text available
In this article we use temperature and precipitation for the current period and outputs from a Global Climate Model to analyze projected future climate compared to the current conditions of the World's Protected Areas. We stratified the Global Land Cover 2000 into major latitudinal bands and broad landcover extents including forest, woodland/grassl...
Article
Full-text available
Species extinctions and the deterioration of other biodiversity features worldwide have led to the adoption of systematic conservation planning in many regions of the world. As a consequence, various software tools for conservation planning have been developed over the past twenty years. These tools implement algorithms designed to identify conserv...
Article
Full-text available
Conservation priority-setting schemes have not yet combined geographic priorities with a framework that can guide the allocation of funds among alternate conservation actions that address specific threats. We develop such a framework, and apply it to 17 of the world's 39 Mediterranean ecoregions. This framework offers an improvement over approaches...
Article
Full-text available
Theoretical analyses and experimental studies of synthesized assemblages indicate that under particular circumstances species diversity can enhance community productivity through niche complementarity. It remains unclear whether this process has important effects in mature natural ecosystems where competitive feedbacks and complex environmental inf...
Data
Characteristics of the 39 mediterranean ecoregions: total ecoregion area, projected habitat loss (%yr-1), area of natural and semi-natural habitat, area converted and area protected, cost (US$) per km-2, and information on plant species richness (6), vertebrate (‘Vert’) species richness and endemic richness (9). The number of threatened vertebrate...