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Introduction
Skills and Expertise
Additional affiliations
May 2001 - October 2015
NatureServe - Arlington, United States
Position
- Senior Research Ecologist
August 1993 - August 1995
Publications
Publications (51)
Our data shows that the protection of 80% of the Amazon is necessary and possible,
but above all, urgent. If the current trend of deforestation continues, the Amazon as we
know it today would not reach 2025. This report presents ten compelling conclusions resulting from the comparison of the status of the Priority Areas by territorial management re...
Documenting temporal trends in the extent of ecosystems is essential to monitoring their
status but combining this information with the degree of protection helps us assess the effectiveness of societal actions for conserving ecosystem diversity and related ecosystem services. We demonstrated indicators in the Tropical Andes using both potential (...
This Report provides a comprehensive, objective, open, transparent, systematic, and rigorous scientific assessment of the state of the Amazon’s ecosystems, current trends, and their implications for the long-term well-being of the region, as well as opportunities and policy relevant options for conservation and sustainable development.
The Science Panel for the Amazon (SPA) is an unprecedented initiative convened under the auspices of the United Nations Sustainable Development Solutions Network (SDSN). The SPA is composed of over 200 preeminent scientists and researchers from the eight Amazonian countries, French Guiana, and global partners. These experts came together to debate,...
This Report provides a comprehensive, objective, open, transparent, systematic, and rigorous scientific assessment of the state of the Amazon’s ecosystems, current trends, and their implications for the long-term well-being of the region, as well as opportunities and policy relevant options for conservation and sustainable development.
Indigenous Territories (ITs) with less centralized forest governance than Protected Areas (PAs) may represent cost-effective natural climate solutions to meet the Paris agreement. However, the literature has been limited to examining the effect of ITs on deforestation, despite the influence of anthropogenic degradation. Thus, little is known about...
Indigenous Territories (ITs) and Community Managed Protected Areas (PAs) with less restriction on forest use than integral PAs may represent cost-effective natural climate solutions to meet the Paris agreement. However, the literature has been limited to examining the effect of ITs and Community Managed PAs on deforestation, despite the influence o...
Documenting changes in ecosystem extent and protection is essential to understanding status of biodiversity and related ecosystem services and have direct applications to measuring Essential Biodiversity Variables, Targets under the Convention on Biological Diversity (CBD), and IUCN Red List of Ecosystems. We developed both potential and current di...
Maintaining the abundance of carbon stored aboveground in Amazon forests is central to any comprehensive climate stabilization strategy. Growing evidence points to indigenous peoples and local communities (IPLCs) as buffers against large-scale carbon emissions across a nine-nation network of indigenous territories (ITs) and protected natural areas...
Forests of the Americas and the Caribbean are undergoing rapid change as human populations increase and land use intensifies. We applied the IUCN Red List of Ecosystems (RLE) criteria and simple cost-efficiency analyses to provide the first regional perspective on patterns of relative risk integrated across multiple threats. Based on six indicators...
La preocupación por los efectos del cambio climático ha provocado el desarrollo de
nuevas metodologías con el fin de producir evidencias para la discusión sobre los mejores
medios para la conservación de los stocks de carbono forestal. Los mecanismos
internacionales como REDD+ (Reducción de Emisiones por Deforestación y
Degradación) se apoyan en el...
The purpose of the EcoVeg classification approach is to describe the diversity of terrestrial ecosystems across the globe and inform decisions about conservation and resource management. The approach provides the scientific basis for the U.S. National Vegetation Classification, Canadian National Vegetation Classification and NatureServe's Internati...
El bosque de la cuenca del Río Amazonas, bosque tropical continuo más extenso del mundo, almacena grandes cantidades de carbono, alberga pueblos indígenas y colonos, y provee servicios ecosistémicos de importancia global. A pesar de varias iniciativas, la deforestación, una de las principales fuentes de emisiones antropogénicas de gases de efecto i...
La Cuenca Amazónica, incluida la Región Amazónica Ecuatoriana (RAE), es reconocida por los servicios ecosistémicos que brinda tanto a sus pobladores como al resto de la población mundial, por su alta biodiversidad, la contribución de sus bosques a la estabilidad climática global, y por su riqueza humana y cultural. Así mismo son conocidas la defore...
Developing indicators for monitoring biodiversity, as called for by the Convention on Biological Diversity and 2020 Aichi Targets, is challenging in many countries due to data and capacity gaps. One proposed solution is to disaggregate global datasets to generate national-level indicators for countries where these values do not exist, but to date t...
An ecological vegetation classification approach has been developed in which a combination of vegetation attributes (physiognomy, structure, and floristics) and their response to ecological and biogeographic factors are used as the basis for classifying vegetation types. This approach can help support international, national, and subnational classi...
El área de estudio comprende 1.249.281 km2 en los que se han identificado 84 sistemas ecológicos distintos, lo cual se explica por el extenso gradiente latitudinal y la gran diversidad de ambientes o regiones ecológicas incluidos en esta geografía, tales como: laderas montañosas andinas húmedas y nubladas, valles interandinos xéricos, mesetas sedim...
Se han identificado 84 sistemas ecológicos distintos, lo cual se explica por el extenso gradiente latitudinal y la gran diversidad de ambientes o regiones ecológicas incluidos en esta geografía, tales como: laderas montañosas andinas húmedas y nubladas, valles interandinos xéricos, mesetas sedimentarias y colinas del subandino, la penillanura amazó...
This publication explains features and range of applications of the United States National Vegetation Classification (USNVC).
A vegetation classification approach is needed that can describe the diversity of terrestrial ecosystems and their transformations over large time frames, span the full range of spatial and geographic scales across the globe, and provide knowledge of reference conditions and current states of ecosystems required to make decisions about conservation...
The alliance is "A vegetation classification unit containing one or more associations, and defined by a characteristic range of species composition, habitat conditions, physiognomy, and diagnostic species, typically at least one of which is found in the uppermost or dominant stratum of the vegetation. Alliances reflect regional to subregional clima...
We summarized the scientific basis for EcoVeg, a physiognomic–floristic– ecological classification approach that applies to existing vegetation, both cultural (planted and dominated by human processes) and natural (spontaneously formed and dominated by non-human ecological processes). It provides a framework that can: • describe vegetation types at...
AimNational and international policy frameworks, such as the European Union's Renewable Energy Directive, increasingly seek to conserve and reference ‘highly biodiverse grasslands’. However, to date there is no systematic global characterization and distribution map for grassland types. To address this gap, we first propose a systematic definition...
Current economic growth models encourage natural resource-rich countries to become suppliers of raw materials for growing capital markets which severely affect conditions of large natural areas such as the western Amazon Basin, one of the most biodiverse regions on Earth. The process will accelerate as this region becomes more accessible with the d...
Current economic growth models encourage natural resource-rich countries to become suppliers of raw materials for growing capital markets which severely affect conditions of large natural areas such as the western Amazon Basin, one of the most biodiverse regions on Earth. The process will accelerate as this region becomes more accessible with the d...
Terrestrial ecosystems and vegetation of Africa were classified and mapped as part of a larger effort and global protocol (GEOSS – the Global Earth Observation System of Systems), which includes an activity to map terrestrial ecosystems of the earth in a standardized, robust, and practical manner, and at the finest possible spatial resolution. To m...
Background: The Andes-Amazon basin of Peru and Bolivia is one of the most data-poor, biologically rich, and rapidly changing areas of the world. Conservation scientists agree that this area hosts extremely high endemism, perhaps the highest in the world, yet we know little about the geographic distributions of these species and ecosystems within co...
The Andes-Amazon basin of Peru and Bolivia is one of the most data-poor, biologically rich, and rapidly changing areas of the world. Conservation scientists agree that this area hosts extremely high endemism, perhaps the highest in the world, yet we know little about the geographic distributions of these species and ecosystems within country bounda...
Endemic species model results.
Gap analysis results.
Sources of species locality data and expert reviewer list.
Ecological system accuracy assessment.
Enlarged map of SE Peru; Vertebrate Endemism & Ecological Systems.
Species distribution modeling, Ecological System mapping, endemism and irreplaceability, gap analysis.
Background/Question/Methods The U.S. National Vegetation Classification (USNVC) has recently been completely revised through the Federal Geographic Data Committee (FGDC) Vegetation Subcommittee. That committee, representing a partnership between federal agencies, the Ecological Society of America’s Vegetation Panel, NatureServe, and other organizat...
Este documento es el resultado del trabajo interinstitucional de la
Secretaría General de la Comunidad Andina, el Programa Regional
ECOBONA de Intercooperation, el Proyecto Páramo Andino de
CONDESAN, el Programa BioAndes, NatureServe, EcoCiencia, el Instituto
de Investigación de Recursos Biológicos Alexander von Humboldt, el
Instituto de Ciencias A...
Standardized terrestrial ecosystems of South America were mapped using a biophysical stratification approach, and employing an ecological systems classification recently developed for Latin America and the Caribbean. The classification effort involved the development of diagnostic criteria and names for describing expert-derived ecological systems....
In the coastal range of western Ecuador, we established a one-hectare plot in dry, semideciduous forest at 320–365 m elevation (l°26'S 80°41'W). Within the plot, we recorded all trees ≥ 5 cm dbh. There were present 538 trees and 655 stems with a total basal area of 7.5 m2. Taxonomically the trees represented 37 species and 22 families. Ampelocera s...
During six weeks of fieldwork at nine localities
along the Pacific coast of Ecuador from
Esmeraldas to Arenillas (Fig. 1), the Rapid
Assessment Program (RAP) team of Conservation
International inventoried plants, birds,
mammals, amphibians and reptiles. The results
of these surveys confirm that while the
region’s plant and animal communities are
no...
