Bruce Young

Bruce Young
NatureServe · Conservation Science

PhD

About

105
Publications
87,869
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15,878
Citations

Publications

Publications (105)
Article
Full-text available
Comprehensive assessments of species’ extinction risks have documented the extinction crisis and underpinned strategies for reducing those risks. Global assessments reveal that, among tetrapods, 40.7% of amphibians, 25.4% of mammals and 13.6% of birds are threatened with extinction. Because global assessments have been lacking, reptiles have been o...
Article
Full-text available
Comprehensive assessments of species’ extinction risks have documented the extinction crisis and underpinned strategies for reducing those risks. Global assessments reveal that, among tetrapods, 40.7% of amphibians, 25.4% of mammals and 13.6% of birds are threatened with extinction. Because global assessments have been lacking, reptiles have been o...
Article
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species is central in biodiversity conservation, but insufficient resources hamper its long-term growth, updating, and consistency. Models or automated calculations can alleviate those challenges by providing standardised estimates required for assessments, or prioriti...
Article
Full-text available
Continental- and regional-scale assessments of gaps in protected area networks typically use relatively coarse range maps for well documented species groups, creating uncertainty about the fate of unexamined biodiversity and providing insufficient guidance for land managers. By building habitat suitability models for a taxonomically diverse group o...
Article
Full-text available
The Convention on Biological Diversity’s post-2020 Global Biodiversity Framework will probably include a goal to stabilize and restore the status of species. Its delivery would be facilitated by making the actions required to halt and reverse species loss spatially explicit. Here, we develop a species threat abatement and restoration (STAR) metric...
Data
The data presented in this article are related to the research article entitled “Progress on National Biodiversity Indicator Reporting and Prospects for Filling Indicator Gaps in Southeast Asia ” (Han et al., 2020). We examined quantifiable information about biodiversity indicators from the most recent two national reports (i.e., 4th in 2010 and 5t...
Article
Full-text available
Assessing the vulnerability of species to climate change serves as the basis for climate-adaptation planning and climate-smart conservation , and typically involves an evaluation of exposure, sensitivity, and adaptive capacity (AC). AC is a species' ability to cope with or adjust to changing climatic conditions, and is the least understood and most...
Data
Data on Indicators used in Southeast Asian nations’ 4th and 5th National Reports to the Convention on Biological Diversity
Article
Full-text available
The data presented in this article are related to the research article entitled “Progress on National Biodiversity Indicator Reporting and Prospects for Filling Indicator Gaps in Southeast Asia ” (Han et al., 2020). We examined quantifiable information about biodiversity indicators from the most recent two national reports (i.e., 4th in 2010 and 5t...
Article
Full-text available
With tremendous biodiversity but increasing threats, Southeast Asia faces challenges in meeting its commitments to the Convention on Biological Diversity’s 2020 Aichi Targets. The use of indicators to monitor, evaluate and guide conservation progress is increasingly urgent. We quantified indicator use by 10 Southeast Asian governments in the 4th an...
Article
Indicators are necessary to monitor national progress toward commitments made to the Convention on Biological Diversity (CBD), but countries often struggle to mobilize quantitative indicators for many biodiversity targets. Assessing the extent to which countries are using measurable indicators from global and national sources by surveying 5th Natio...
Article
Indicators are necessary to monitor national progress toward commitments made to the Convention on Biological Diversity (CBD), but countries often struggle to mobilize quantitative indicators for many biodiversity targets. Assessing the extent to which countries are using measurable indicators from global and national sources by surveying 5th Natio...
Article
Outside of protected areas, environmental regulation is a vital policy tool for conserving at-risk species. An underappreciated potential for citizen science is to augment locality databases used in regulatory review to provide greater certainty to regulatory decisions. To characterize current use of citizen science data in regulatory review, we su...
Article
Full-text available
Assessing species' vulnerability to climate change is a prerequisite for developing effective strategies to conserve them. The last three decades have seen exponential growth in the number of studies evaluating how, how much, why, when, and where species will be impacted by climate change. We provide an overview of the rapidly developing field of c...
Article
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Preserving the evolutionary history and ecological functions that different species embody, in addition to species themselves, is a growing concern for conservation. Recent studies warn that conservation priority regions identified using species diversity differ from those based on phylogenetic or functional diversity. However, spatial mismatches i...
Article
Full-text available
Global variation in species richness is widely recognized, but the explanation for what drives it continues to be debated. Previous efforts have focused on a subset of potential drivers, including evolutionary rate, evolutionary time (maximum clade age of species restricted to a region), dispersal (migration from one region to another), ecological...
Article
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Increasing attention to pollinators and their role in providing ecosystem services has revealed a paucity of studies on long-term population trends of most insect pollinators in many parts of the world. Because targeted monitoring programs are resource intensive and unlikely to be performed on most insect pollinators, we took advantage of existing...
Data
Summary of model selection for 21 species of hawkmoths. Indicated are the number and, in brackets, the weight of evidence (AICw) corresponding to each model selected in the best model set. Model numbers correspond to models in S2 Table. Models shown were generated using the full set of records for each species. (DOCX)
Data
Multicollinearity among model predictor variables assessed using variance inflation factors. (DOCX)
Data
Candidate models explaining the reporting rate of hawkmoths. Numbers correspond to numbers in S3 Table. Only models selected in the best predictor set of at least one species are shown. All models also included a spatial random effect of county. (DOCX)
Article
Full-text available
Conservationists are increasingly concerned about North American bats due to the arrival and spread of the White-nose Syndrome (WNS) disease and mortality associated with wind turbine strikes. To place these novel threats in context for a group of mammals that provides important ecosystem services, we performed the first comprehensive conservation...
Article
Examining the biogeography of body size is crucial for understanding how animal communities are assembled and maintained. In tetrapods, body size varies predictably with temperature, moisture, productivity seasonality and topographical complexity. Although millennial-scale human pressures are known to have led to the extinction of primarily large-b...
Article
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...
Book
Full-text available
Predicting climate change impacts on biodiversity is a major scientific challenge, but doing so is important for assessing extinction risk, developing conservation action plans, providing guidance for laws and regulations, and identifying the mechanisms and patterns of impact to inform climate change adaptation. In the few decades since the threat...
Article
Full-text available
Knowledge products comprise assessments of authoritative information supported by standards , governance, quality control, data, tools, and capacity building mechanisms.
Data
Unique visitors per year to knowledge products’ websites. (DOCX)
Data
Calculation of the cost of achieving pre-defined baselines by 2020. All extrapolations were derived through data from the sample compiled in the study and projections provided by each knowledge product team. (DOCX)
Data
Currency conversions and accounting for inflation. Costs were provided in British Pounds (GBP), US Dollars (US$), Euros (EUR), Australian Dollars (AUD), and Swiss Francs (CHF) of the year when the investment took place. We accounted for inflation by calculating the value of the currency in 2014 and then we transformed all currencies to US Dollars (...
Data
Extrapolated one-off costs costs per funding source between 1979 and 2013 for all four knowledge products. Extrapolated one-off costs costs per cost categories between 1979 and 2013 for all four knowledge products. (DOCX)
Data
Summary of data collection for all four knowledge products. The table summarises which costs were collected for each of the four knowledge products and how much of the total number of assesments, available in December 2013, these represent. In cases where 100% of the costs were not collected, the total sum for each knowledge product was increased p...
Article
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p>Although the Eastern Tropical Pacific is well known for its diverse fauna, the seabirds occurring off Costa Rica’s Pacific coast have received little scientific attention. With seabirds now the fastest declining avian group, a better understanding of seabird diversity and abundance in this region is urgently needed. We report on observations of C...
Article
Full-text available
Two processes for regional environmental assessment are currently underway: the Global Environment Outlook (GEO) and Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES). Both face constraints of data, time, capacity, and resources. To support these assessments, we disaggregate three global knowledge products according to their...
Article
Full-text available
The effects of climate change on biodiversity are increasingly well documented, and many methods have been developed to assess species' vulnerability to climatic changes, both ongoing and projected in the coming decades. To minimize global biodiversity losses, conservationists need to identify those species that are likely to be most vulnerable to...
Article
Full-text available
New tools and approaches are becoming available for wildlife conservation managers to help support climate adaptation activities, but few studies have documented how practitioners have applied these tools and perceive their utility. We surveyed the literature and users of the NatureServe Climate Change Vulnerability Index (CCVI), a tool that is wid...
Article
Full-text available
Recognizing the imperiled status of biodiversity and its benefit to human well-being, the world's governments committed in 2010 to take effective and urgent action to halt biodiversity loss through the Convention on Biological Diversity's “Aichi Targets”. These targets, and many conservation programs, require monitoring to assess progress toward sp...
Article
Full-text available
1.Despite efforts in data collection, missing values are commonplace in life-history trait databases. Because these values typically are not missing randomly, the common practice of removing missing data not only reduces sample size, but also introduces bias that can lead to incorrect conclusions. Imputing missing values is a potential solution to...
Article
Full-text available
Effective and targeted conservation action requires detailed information about species, their distribution, systematics and ecology as well as the distribution of threat processes which affect them. Knowledge of reptilian diversity remains surprisingly disparate, and innovative means of gaining rapid insight into the status of reptiles are needed i...
Article
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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...
Article
Full-text available
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...
Data
Sources of species locality data and expert reviewer list.
Data
Enlarged map of SE Peru; Vertebrate Endemism & Ecological Systems.
Data
Species distribution modeling, Ecological System mapping, endemism and irreplaceability, gap analysis.
Article
... Citation: Comer , PJ, B . Young , K . Schulz , G . Kittel, B . Unnasch, D. Braun, G . Hammerson, L. Smart, H. Hamilton, S. Auer, R. Smyth, and J . Hak.. 2012. Climate Change Vulnerability and Adaptation Strategies for Natural Communities : Piloting methods in the Mojave and Sonoran ...
Technical Report
Full-text available
Motivated by the need for a means to rapidly assess the vulnerability of species to climate change, NatureServe developed a Climate Change Vulnerability Index. The Index uses a scoring system that integrates a species’ predicted exposure to climate change within an assessment area and three sets of factors associated with climate change sensitivity...
Article
Full-text available
The tropical Andes 1 harbor extraordinary biological and cultural diversity, contained in a mosaic of ecosystems (Josse et al. 2009). The region's complex topography, coupled with elevational and latitudinal gradients, results in varied physical conditions that create unique habitats and barriers for species movement. Temporal variability of climat...
Article
Full-text available
Using data for 25,780 species categorized on the International Union for Conservation of Nature Red List, we present an assessment of the status of the world's vertebrates. One-fifth of species are classified as Threatened, and we show that this figure is increasing: On average, 52 species of mammals, birds, and amphibians move one category closer...
Conference Paper
Full-text available
Background/Question/Methods Resource managers increasingly seek to identify which species are most vulnerable to climate change-induced declines. To meet this need, we developed a practical, multifaceted rapid assessment tool, the "climate change vulnerability index." The index considers climate change exposure and species sensitivity. Exposure is...
Article
Full-text available
Seeking more precise knowledge of avian endemism on the east slope of the Andes in Peru and Bolivia, one of the most diverse faunal regions on Earth, we used distribution models based on locality records and 10–12 uncorrelated environmental variables to map the distributions of 115 species. Both maximum-entropy and deductive models reveal three are...
Article
Full-text available
Book review of Stuart et al. (2008) "Threatened amphibians of the world".