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| Registros recuperados: 172 | |
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| Tucker, Catherine M.; Indiana University, Bloomington, Indiana; tuckerc@indiana.edu; Randolph, J. C.; Indiana University, Bloomington, Indiana; randolph@indiana.edu; Evans, Tom; Indiana University, Bloomington, Indiana; evans@indiana.edu; Andersson, Krister P.; University of Colorado, Boulder, Colorado;; Persha, Lauren; Indiana University, Bloomington, Indiana;; Green, Glen M.; Indiana University, Bloomington, Indiana;. |
| A significant challenge in the assessment of forest management outcomes is the limited ability to compare forest conditions quantitatively across ecological zones. We propose an approach for comparing different forest types through the use of reference forests. We tested our idea by drawing a sample of 42 forests from the Midwest USA, Mexico, Guatemala, Honduras, Brazil, Bolivia, Uganda, and Nepal. We grouped these forests by shared characteristics and selected a reference forest to serve as a baseline for each forest type. We developed an index of disturbances using ratios of several forest measurements to assess differences between each study forest and its reference forest. None of the study forests was known to have been impacted by major natural... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Biophysical factors; Comparative analysis; Forest management; Institutions; Multidisciplinary methodology; Reference forests. |
| Ano: 2008 |
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| Sutherland, William J.; Conservation Science Group, Department of Zoology, University of Cambridge; w.sutherland@zoo.cam.ac.uk; Gardner, Toby; Conservation Science Group, Department of Zoology, University of Cambridge; tobyagardner@gmail.com; Bogich, Tiffany L.; Princeton University, Ecology & Evolutionary Biology; tbogich@princeton.edu; Bradbury, Richard B.; Conservation Science Department, Royal Society for the Protection of Birds;; Clothier, Brent; New Zealand Plant & Food Research, Climate Lab;; Jonsson, Mattias; Department of Ecology, Swedish University of Agricultural Sciences;; Kapos, Val; United Nations Environment Programme World Conservation Monitoring Centre;; Lane, Stuart N.; Institute of Hazard, Risk and Resilience, Science Laboratories;; Schroeder, Martin; Department of Ecology, Swedish University of Agricultural Sciences; martin.schroeder@slu.se; Spalding, Mark; The Nature Conservancy and Conservation Science Group, Department of Zoology, University of Cambridge; mspalding@TNC.ORG; Spencer, Tom; Cambridge Coastal Research Unit, Department of Geography, University of Cambridge;; White, Piran C. L. ; Environment Department, University of York;; Dicks, Lynn V.; Conservation Science Group, Department of Zoology, University of Cambridge; lvd22@cam.ac.uk. |
| The major task of policy makers and practitioners when confronted with a resource management problem is to decide on the potential solution(s) to adopt from a range of available options. However, this process is unlikely to be successful and cost effective without access to an independently verified and comprehensive available list of options. There is currently burgeoning interest in ecosystem services and quantitative assessments of their importance and value. Recognition of the value of ecosystem services to human well-being represents an increasingly important argument for protecting and restoring the natural environment, alongside the moral and ethical justifications for conservation. As well as understanding the benefits of ecosystem services, it is... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Climate regulation; Policy making; Pollination; Regulating services; Solution scanning; Water regulation. |
| Ano: 2014 |
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| Cooper, Caren B; Cornell Lab of Ornithology; cbc25@cornell.edu; Dickinson, Janis; Cornell Lab of Ornithology;; Phillips, Tina; Cornell Lab of Ornithology;; Bonney, Rick; Cornell Lab of Ornithology;. |
| Human activities, such as mining, forestry, and agriculture, strongly influence processes in natural systems. Because conservation has focused on managing and protecting wildlands, research has focused on understanding the indirect influence of these human activities on wildlands. Although a conservation focus on wildlands is critically important, the concept of residential area as an ecosystem is relatively new, and little is known about the potential of such areas to contribute to the conservation of biodiversity. As urban sprawl increases, it becomes urgent to construct a method to research and improve the impacts of management strategies for residential landscapes. If the cumulative activities of individual property owners could help conserve... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Citizen science; Cumulative effects; Residential landscapes; Urban ecology. |
| Ano: 2007 |
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| Folke, Carl; Stockholm Resilience Centre, Stockholm University; Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences; carl.folke@beijer.kva.se. |
| Overfishing has historically caused widespread stock collapses in the Southern Ocean. Until recently, illegal, unreported, and unregulated (IUU) fishing threatened to result in the collapse of some of the few remaining valuable fish stocks in the region and vulnerable seabird populations. Currently, this unsustainable fishing has been reduced to less than 10% of former levels. We describe and analyze the emergence of the social-ecological governance system that made it possible to curb the fisheries crisis. For this purpose, we investigated the interplay between actors, social networks, organizations, and institutions in relation to environmental outcomes. We drew on a diversity of methods, including qualitative interviews, quantitative social network and... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: CCAMLR; Governance; IUU fishing; Marine ecology; Southern Ocean; Toothfish. |
| Ano: 2013 |
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| Green areas, also known as green infrastructure or urban vegetation, are vital to urbanites for their critical roles in mitigating urban heat island effects and climate change and for their provision of multiple ecosystem services and aesthetics. Here, I provide a high spatial resolution snapshot of the green cover distribution of the city of San Juan, Puerto Rico, by incorporating the use of morphological spatial pattern analysis (MSPA) as a tool to describe the spatial pattern and connectivity of the city’s urban green areas. Analysis of a previously developed IKONOS 4-m spatial resolution classification of the city of San Juan from 2002 revealed a larger area of vegetation (green areas or green infrastructure) than previously estimated by... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Green areas; Green infrastructure; Morphological spatial pattern analysis (MSPA); Spatial pattern analysis; Urban forests; Urban green area characterization; Urban vegetation. |
| Ano: 2014 |
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| Young, Oran R.; University of California at Santa Barbara, Bren School; young@bren.ucsb.edu; Lambin, Eric F.; University of Louvain; lambin@geog.ucl.ac.be; Alcock, Frank; New College of Florida; falcock@ncf.edu; Haberl, Helmut; Institute of Social Ecology; Helmut.Haberl@uni-klu.ac.at; Karlsson, Sylvia I.; Finland Futures Research Centre; sylvia.karlsson@tukkk.fi; McConnell, William J.; LUCC Focus 1 Office; wjmcconn@indiana.edu; Myint, Tun; CIPEC; tmyint@indiana.edu; Polsky, Colin; Clark University; cpolsky@clarku.edu; Ramakrishnan, P. S.; Jawaharlal Nehru University; psrama@jnuniv.ernet.in; Schroeder, Heike; University of California at Santa Barbara; schroeder@bren.ucsb.edu; Scouvart, Marie; University of Louvain; scouvart@geog.ucl.ac.be; Verburg, Peter H; Wageningen University; Peter.Verburg@wur.nl. |
| The challenge confronting those seeking to understand the institutional dimensions of global environmental change and patterns of land-use and land-cover change is to find effective methods for analyzing the dynamics of socio-ecological systems. Such systems exhibit a number of characteristics that pose problems for the most commonly used statistical techniques and may require additional and innovative analytic tools. This article explores options available to researchers working in this field and recommends a strategy for achieving scientific progress. Statistical procedures developed in other fields of study are often helpful in addressing challenges arising in research into global change. Accordingly, we start with an assessment of some of the enhanced... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Land change; Institutions; Methodology; Analysis; Socio-ecological systems; Statistical techniques. |
| Ano: 2006 |
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| Angeler, David G; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; david.angeler@slu.se; Allen, Craig R; U.S. Geological Survey, Nebraska Cooperative Fish and Wildlife Research Unit; School of Natural Resources, University of Nebraska, Lincoln; allencr@unl.edu; Johnson, Richard K; Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment; richard.johnson@slu.se. |
| Understanding the social and ecological consequences of species invasions is complicated by nonlinearities in processes, and differences in process and structure as scale is changed. Here we use discontinuity analyses to investigate nonlinear patterns in the distribution of biomass of an invasive nuisance species that could indicate scale-specific organization. We analyze biomass patterns in the flagellate Gonyostomum semen (Raphidophyta) in 75 boreal lakes during an 11-year period (1997-2007). With simulations using a unimodal null model and cluster analysis, we identified regional groupings of lakes based on their biomass patterns. We evaluated the variability of membership of individual lakes in regional biomass groups. Temporal trends in local and... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Algal blooms; Alternative states; Biological invasions; Boreal lakes; Complex adaptive systems; Discontinuities; Landscape ecology; Panarchy; Resilience. |
| Ano: 2012 |
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| Freyer, Bernhard; University of Natural Resources and Life Sciences (BOKU); bernhard.freyer@boku.ac.at; Bingen, Jim; Michigan State University, USA; bingen@msu.edu; Paxton, Rebecca; University of Natural Resources and Life Sciences (BOKU); Rebecca.Paxton@boku.ac.at. |
| In a continuously expanding, globalizing, and industrializing organic market, organic consumers confront increasing complexity in organic product representation, labeling, and information that challenges how they build trust in organic products. We present a conceptual framework to analyze how consumers might build and practice trust in the organic agrifood chain. We asked specifically about the role of multicriteria assessment tools (MCATs) for trust building. We identified three consumer trust types: uninformed trust in labels (type 1); informed trust in extensive information, control, and certification (type 2); and informed and engaged trust in forms of close farmer–consumer relationships (type 3). Three concepts of... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Ethics; Governance; Multicriteria assessment tools; Organic farming; Reflexivity; Reflectivity; Systems thinking; Trust. |
| Ano: 2014 |
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| Morse, Nathaniel B.; Department of Natural Resources and the Environment, University of New Hampshire; Earth Systems Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire; nat.morse@unh.edu; Pellissier, Paul A.; Department of Natural Resources and the Environment, University of New Hampshire; Earth Systems Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire; pellissier.paul@gmail.com; Cianciola, Elisabeth N.; Department of Natural Resources and the Environment, University of New Hampshire; epf28@wildcats.unh.edu; Brereton, Richard L.; Department of Natural Resources and the Environment, University of New Hampshire; rich.brereton@gmail.com; Sullivan, Marleigh M.; Department of Natural Resources and the Environment, University of New Hampshire; sullivanm12@gmail.com; Shonka, Nicholas K.; Department of Natural Resources and the Environment, University of New Hampshire; nkw9@wildcats.unh.edu; Wheeler, Tessa B.; Department of Natural Resources and the Environment, University of New Hampshire; tbq2@wildcats.unh.edu; McDowell, William H.; Department of Natural Resources and the Environment, University of New Hampshire; Bill.McDowell@unh.edu. |
| Ecologists have developed terminology to distinguish ecosystems based on the degree of human alteration. To this end, ecosystems can be characterized as “novel ecosystems,” “impacted ecosystems,” or “designed ecosystems,” depending on the role of human management in ecosystem development and effects on ecosystem properties. Properly classifying an ecosystem as novel, impacted, or designed has critical implications for its conservation and management, but a broadly applicable definition for a “novel ecosystem” does not exist. We have provided a formal definition of “novel ecosystem” that facilitates its use in practical applications and have described four... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Ecosystem management; Novel ecosystem; Resilience; Restoration; Threshold. |
| Ano: 2014 |
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| van Staveren, Martijn F.; Environmental Policy Group, Wageningen University; martijn.vanstaveren@wur.nl; van Tatenhove, Jan P. M.; Environmental Policy Group, Wageningen University; jan.vantatenhove@wur.nl. |
| Several of the world's largest deltas have recently been conceptualized as social-ecological delta systems. Although such conceptualizations are valuable in emphasizing complex interaction between social actors and ecological processes in deltas, they do not go into specific dynamics that surround technological developments in the hydraulic domain. By drawing from concepts originating in socio-technical systems research, we stress the importance of technology, particularly the domain of hydraulic engineering, in shaping a delta’s future. Based on two geographically distinct cases of flood management infrastructure in the Dutch delta, we demonstrate the influence of existing hydraulic works, in mutual interaction with social responses and... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Adaptive delta management; Delta trajectory; Flood management; Hydraulic engineering; Path dependency; Social-ecological systems; Technological lock-in. |
| Ano: 2016 |
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| Ecological restoration has been mainstreamed in international biodiversity policies in the last five years. I analyze statements about restoration in three international policies: the Convention for Biodiversity Strategic Plan 2011-2020 and Aichi Biodiversity Targets, the Convention for Biodiversity Decision XI/16 on ecosystem restoration, and the European Union’s Biodiversity Strategy to 2020. I argue that restoration functions at three different levels in these policies: as an objective, as a target, and as a tool. Because restoration appears at all three levels, the policies encourage counting all restoration activity as meeting the objectives of the policy regardless of the activity’s actual effect on ecosystem services or... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Convention on Biological Diversity; Ecological restoration; European Union; Policy. |
| Ano: 2015 |
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| Registros recuperados: 172 | |
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