Max E. G. Bartels and the Javan lapwing Vanellus macropterus

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Hunting and sale of Pangolins across Sub-Saharan Africa: a preliminary analysis

Pangolins (Pholidota: Manidae) are hunted and traded for their meat and scales. We conducted preliminary analyses on the hunting and sale at markets of four species of pangolin across Sub-Saharan Africa based on data from the OFFTAKE database. Our analyses show that all four species of African pangolin are hunted and sold at markets throughout much of Sub-Saharan Africa. The proportion of pangolins as part of the total vertebrates hunted has increased significantly during the 43 years, from 1972-2014, for which we have data

MODISTools - downloading and processing MODIS remotely sensed data in R

Remotely sensed data – available at medium to high resolution across global spatial and temporal scales – are a valuable resource for ecologists. In particular, products from NASA's MODerate-resolution Imaging Spectroradiometer (MODIS), providing twice-daily global coverage, have been widely used for ecological applications. We present MODISTools, an R package designed to improve the accessing, downloading, and processing of remotely sensed MODIS data. MODISTools automates the process of data downloading and processing from any number of locations, time periods, and MODIS products. This automation reduces the risk of human error, and the researcher effort required compared to manual per-location downloads. The package will be particularly useful for ecological studies that include multiple sites, such as meta-analyses, observation networks, and globally distributed experiments. We give examples of the simple, reproducible workflow that MODISTools provides and of the checks that are carried out in the process. The end product is in a format that is amenable to statistical modeling. We analyzed the relationship between species richness across multiple higher taxa observed at 526 sites in temperate forests and vegetation indices, measures of aboveground net primary productivity. We downloaded MODIS derived vegetation index time series for each location where the species richness had been sampled, and summarized the data into three measures: maximum time-series value, temporal mean, and temporal variability. On average, species richness covaried positively with our vegetation index measures. Different higher taxa show different positive relationships with vegetation indices. Models had high R2 values, suggesting higher taxon identity and a gradient of vegetation index together explain most of the variation in species richness in our data. MODISTools can be used on Windows, Mac, and Linux platforms, and is available from CRAN and GitHub (https://github.com/seantuck12/MODISTools)

Local species assemblages are influenced more by past than current dissimilarities in photosynthetic activity

Most land on Earth has been changed by humans and past changes of land can have lasting influences on current species assemblages. Yet few globally representative studies explicitly consider such influences even though auxiliary data, such as from remote sensing, are readily available. Time series of satellite-derived data have been commonly used to quantify differences in land-surface attributes such as vegetation cover, which will among other things be influenced by anthropogenic land conversions and modifications. Here we quantify differences in current and past (up to five years before sampling) vegetation cover, and assess whether such differences differentially influence taxonomic and functional groups of species assemblages between spatial pairs of sites. Specifically, we correlated between-site dissimilarity in photosynthetic activity of vegetation (the Enhanced Vegetation Index) with the corresponding dissimilarity in local species assemblage composition from a global database using a common metric for both, the Bray-Curtis index. We found that dissimilarity in species assemblage composition was on average more influenced by dissimilarity in past than current photosynthetic activity, and that the influence of past dissimilarity increased when longer time periods were considered. Responses to past dissimilarity in photosynthetic activity also differed among taxonomic groups (plants, invertebrates, amphibians, reptiles, birds and mammals), with reptiles being among the most influenced by more dissimilar past photosynthetic activity. Furthermore, we found that assemblages dominated by smaller and more vegetation-dependent species tended to be more influenced by dissimilarity in past photosynthetic activity than prey-dependent species. Overall, our results have implications for studies that investigate species responses to current environmental changes and highlight the importance of past changes continuing to influence local species assemblage composition. We demonstrate how local species assemblages and satellite-derived data can be linked and provide suggestions for future studies on how to assess the influence of past environmental changes on biodiversity

Crop expansion and conservation priorities in tropical countries

Expansion of cropland in tropical countries is one of the principal causes of biodiversity loss, and threatens to undermine progress towards meeting the Aichi Biodiversity Targets. To understand this threat better, we analysed data on crop distribution and expansion in 128 tropical countries, assessed changes in area of the main crops and mapped overlaps between conservation priorities and cultivation potential. Rice was the single crop grown over the largest area, especially in tropical forest biomes. Cropland in tropical countries expanded by c. 48,000 km2 per year from 1999–2008. The countries which added the greatest area of new cropland were Nigeria, Indonesia, Ethiopia, Sudan and Brazil. Soybeans and maize are the crops which expanded most in absolute area. Other crops with large increases included rice, sorghum, oil palm, beans, sugar cane, cow peas, wheat and cassava. Areas of high cultivation potential—while bearing in mind that political and socio-economic conditions can be as influential as biophysical ones—may be vulnerable to conversion in the future. These include some priority areas for biodiversity conservation in tropical countries (e.g., Frontier Forests and High Biodiversity Wilderness Areas), which have previously been identified as having ‘low vulnerability’, in particular in central Africa and northern Australia. There are also many other smaller areas which are important for biodiversity and which have high cultivation potential (e.g., in the fringes of the Amazon basin, in the Paraguayan Chaco, and in the savanna woodlands of the Sahel and East Africa). We highlight the urgent need for more effective sustainability standards and policies addressing both production and consumption of tropical commodities, including robust land-use planning in agricultural frontiers, establishment of new protected areas or REDD+ projects in places agriculture has not yet reached, and reduction or elimination of incentives for land-demanding bioenergy feedstock

Non-linear changes in modelled terrestrial ecosystems subjected to perturbations

Perturbed ecosystems may undergo rapid and non-linear changes, resulting in ‘regime shifts’ to an entirely different ecological state. The need to understand the extent, nature, magnitude and reversibility of these changes is urgent given the profound effects that humans are having on the natural world. General ecosystem models, which simulate the dynamics of ecosystems based on a mechanistic representation of ecological processes, provide one novel way to project ecosystem changes across all scales and trophic levels, and to forecast impact thresholds beyond which irreversible changes may occur. We model ecosystem changes in four terrestrial biomes subjected to human removal of plant biomass, such as occurs through agricultural land-use change. We find that irreversible, non-linear responses commonly occur where removal of vegetation exceeds 80% (a level that occurs across nearly 10% of the Earth’s land surface), especially for organisms at higher trophic levels and in less productive ecosystems. Very large, irreversible changes to ecosystem structure are expected at levels of vegetation removal akin to those in the most intensively used real-world ecosystems. Our results suggest that the projected twenty-first century rapid increases in agricultural land conversion may lead to widespread trophic cascades and in some cases irreversible changes to ecosystem structure

Global offtake of wild animals from wetlands: critical issues for fish and birds

The global offtake of wild animals is valued at US$400 billion annually and supports the livelihoods of 15% of the global population. Wetlands are amongst the most important ecosystems globally, but offtake may represent a substantial pressure. This study assessed the availability of information and evaluated the offtake of wild animals from wetlands by focussing on fish and waterbirds. A literature search identified 2726 studies on wetland offtake. Scoping of these resulted in 82 studies that contained quantitative information on fish or waterbird offtake. Fishing offtake statistics for inland waters are collated nationally by some governments, but other sources of information are few. Reporting of fish offtake for species or across scales was constrained by insufficient detail, even in relatively well-documented countries such as Bangladesh. Although government hunting statistics from Europe and North America were available, there was little waterbird data from less economically developed countries. The case of Canada indicated that the species richness and composition of waterbirds taken varied between indigenous subsistence and recreational hunting communities. Hidden (unquantified) offtake, of both fish and waterbirds, hinders obtaining precise data for offtake, which may threaten the conservation of species and the sustainability of wetland ecosystems

Towards understanding interactions between Sustainable Development Goals: the role of environment–human linkages

Only 10 years remain to achieve all Sustainable Development Goals (SDGs) globally, so there is a growing need to increase the effectiveness and efficiency of action by targeting multiple SDGs. The SDGs were conceived as an ‘indivisible whole’, but interactions between SDGs need to be better understood. Several previous assessments have begun to explore interactions including synergies and possible conflicts between the SDGs, and differ widely in their conclusions. Although some highlight the role of the more environmentally-focused SDGs in underpinning sustainable development, none specifically focuses on environment-human linkages. Assessing interactions between SDGs, and the influence of environment on them, can make an important contribution to informing decisions in 2020 and beyond. Here, we review previous assessments of interactions among SDGs, apply an influence matrix to assess pairwise interactions between all SDGs, and show how viewing these from the perspective of environment-human linkages can influence the outcome. Environment, and environment-human linkages, influence most interactions between SDGs. Our action-focused assessment enables decision makers to focus environmental management to have the greatest impacts, and to identify opportunities to build on synergies and reduce trade-offs between particular SDGs. It may enable sectoral decision makers to seek support from environment managers for achieving their goals. We explore cross-cutting issues and the relevance and potential application of our approach in supporting decision making for progress to achieve the SDGs

Global goals mapping: the environment-human landscape

The UK Natural Environment Research Council (NERC), The Rockefeller Foundation (RF), and the UK Economic and Social Research Council (ESRC) recognise that the development challenges of the 21st century require both a shift in thinking and actions that prepare us for the future, while enabling more effective development interventions today. These organisations are establishing a new initiative: 'Towards a Sustainable Earth: Environment-human Systems and the UN Global Goals' (TaSE) as part of their commitment to seeing the 17 Sustainable Development Goals (also known as Global Goals) become a reality. The core premise of the TaSE initiative is that environment-human interactions must be central to all development. The TaSE initiative is convening a meeting at The Rockefeller Foundation Bellagio Centre (7-11 November 2016) to identify the major research and innovation questions relevant to the achievement of the overarching ambition of this initiative. To help focus discussions during this meeting, NERC commissioned the Sussex Sustainability Research Programme (SSRP) at the University of Sussex and the UN Environment World Conservation Monitoring Centre (UNEP-WCMC) to produce a “synthesis of past and current research and innovation relating to the policy landscape surrounding the environment-human relationships and systems that interact across the UN Global Goals”. The commissioned work is encapsulated in this report, Global Goals mapping: the environment-human landscape. For each Goal, the first part of this report summarises the role of environment-human interactions and synthesises relevant research evidence, key innovations and policies, and knowledge and research gaps. The syntheses of research evidence, key innovations and policies presented for individual Global Goals show that environment-human interactions are important for the achievement of all of the Goals. However, the number of environment-human interactions, and the extent to which these interactions need to be considered for achieving each Goal, varies among Global Goals. Although research, innovation and policy have advanced substantially since the Millennium Ecosystem Assessment, knowledge and research gaps related to environment-human interactions remain for all Goals. The Global Goals were conceived as an 'indivisible whole'. The Goals relate to and depend on each other, but relationships between Goals need to be better understood. Previous analyses have begun to explore relationships including synergies and possible conflicts between the Goals from a number of different perspectives and differ widely in their conclusions. While many highlight the role of the more environmentally-focused Goals in underpinning sustainable development, none specifically focuses on environment-human interactions, which are the focus of the TaSE initiative and crucial to the achievement of the Goals. This report uses a new analysis to suggest which relationships between Global Goals may be most influenced by environment-human interactions. It is based on a pairwise view of relationships between Goals, assessing the influence that action (research, policy, innovation and/or management) towards one Goal may have on the potential for achieving others. It highlights 20 pairwise relationships between Goals where these influences may be especially strong, and illustrates for some of these how the knowledge and research gaps identified in Part 1 are relevant to the relationships between the Goals. In reality relationships among Goals are more complex and multidimensional than a pairwise analysis can illustrate, but visualising all connections among them is challenging. Further knowledge gaps and challenges related to the trade-offs, synergies and unintended consequences of the relationships among Goals will need to be addressed to achieve all 17 Goals. In order to understand relationships among Global Goals and prioritize action, including research, it is essential to consider multiple cross-cutting factors, including: temporal and spatial scales of action and impact; context for the action, whether local or other; the (multi) directionality of the relationships among Goals; thresholds and tipping points; number and types of people affected; human behaviour; governance, institutions and power; existence and accessibility of different types of knowledge; and the feasibility of obtaining and scaling-up research results and innovations by 2030. Several approaches have attempted to tackle interconnected challenges, including nexus thinking, pathways, leverage points, indigenous and local knowledge, integrated environmental assessments and integrated modelling. However, there is a need for more work and holistic approaches to achieve all 17 Goals. The syntheses of research evidence, innovations and policies regarding environment-human interactions relevant to each Global Goal and the analysis of the relationships among Goals provide a basis for identifying priority areas for new research, innovation and policy. The Bellagio Group has a vital role to play in building on this to help the TaSE initiative identify a research, innovation and research translation agenda in support of the Global Goals