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Registros recuperados: 23
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A conceptual framework to evaluate human-wildlife interactions within coupled human and natural systems Ecology and Society
Morzillo, Anita T.; University of Connecticut; anita.morzillo@uconn.edu; de Beurs, Kirsten M.; University of Oklahoma; kdebeurs@ou.edu; Martin-Mikle, Chelsea J.; University of Oklahoma; chelseajane.martin@gmail.com.
Landscape characteristics affect human-wildlife interactions. However, there is a need to better understand mechanisms that drive those interactions, particularly feedbacks that exist between wildlife-related impacts, human reaction to and behavior as a result of those impacts, and how land use and landscape characteristics may influence those components within coupled human and natural systems. Current conceptual models of human-wildlife interactions often focus on species population size as the independent variable driving those interactions. Such an approach potentially overlooks important feedbacks among and drivers of human-wildlife interactions that result from mere wildlife presence versus absence. We describe an emerging conceptual framework...
Tipo: Peer-Reviewed Reports Palavras-chave: Coupled human and natural systems; Human-wildlife conflict; Human-wildlife interactions; Landscape ecology; Pesticides; Rodenticides; Wildlife management.
Ano: 2014
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A Fractal Landscape Realizer for Generating Synthetic Maps Ecology and Society
Hargrove, William; Oak Ridge National Laboratory; hnw@fire.esd.ornl.gov; Hoffman, Forrest M; Oak Ridge National Laboratory;; Schwartz, Paul M; ;.
A fractal landscape realizer has been developed that generates synthetic landscape maps to user specifications. The alternative landscape realizations are not identical to the actual maps after which they are patterned, but are similar statistically (i.e., the areas and fractal character of each category are replicated). A fractal or self-affine pattern generator is used to provide a spatial probability surface for each category in the synthetic map. The Fractal Realizer arbitrates contentions among categories in a way that makes it possible to preserve the fractal patterns of all the categories in the resulting synthetic landscape. Each synthetic landscape is one equally likely realization from among an infinite ensemble of possible fractal landscape...
Tipo: Peer-Reviewed Reports Palavras-chave: FRAGSTATS; Fractal Realizer; Turing Test; Categorical maps; Fractal; Landscape ecology; Neutral model; Null model; Pattern; Pseudoreplication; Realization; Simulation; Synthetic map.
Ano: 2002
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A methodological proposal for quantifying environmental compensation through the spatial analysis of vulnerability indicators. Repositório Alice
TORRESAN, F. E.; LORANDI, R..
The aim of this work was to propose a methodology for quantifying the environmental compensation through the spatial analysis of vulnerability indicators. A case study was applied for the analysis of sand extraction enterprises, in the region of Descalvado and Analândia, inland of São Paulo State, Brazil. Environmental vulnerability scores were attributed for the indicators related to erosion, hydrological resources and biodiversity loss. This methodological proposal allowed analyzing the local alternatives of certain enterprise with the objective of reducing impacts and at the same time reducing the costs of environmental compensation. The application of the methodology significantly reduced the subjectivity degree usually associated to the most of the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Environmental compensation; Environmental impact assessment; GIS; Landscape ecology; Sand mining.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/31585
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Adaptive Ecosystem Management in the Pacific Northwest: a Case Study from Coastal Oregon Ecology and Society
Gray, Andrew N; U.S. Forest Service Pacific Northwest Research Station; agray01@fs.fed.us.
Adaptive ecosystem management has been adopted as a goal for decision making by several of the land management and regulatory agencies of the U.S. government. One of the first attempts to implement ecosystem management was undertaken on the federally managed forests of the Pacific Northwest in 1994. In addition to a network of reserve areas intended to restore habitat for late-successional terrestrial and aquatic species, "adaptive management areas" (AMAs) were established. These AMAs were intended to be focal areas for implementing innovative methods of ecological conservation and restoration and meeting economic and social goals. This paper analyzes the primary ecological, social, and institutional issues of concern to one AMA in the Coast Range in...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive management; Adaptive management area; Ecosystem management; Forest ecology; Landscape ecology; Models; Monitoring; Old-growth forest; Public involvement.
Ano: 2000
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Assessing Ecological Risks at the Landscape Scale: Opportunities and Technical Limitations Ecology and Society
Kapustka, Lawrence A; ecological planning and toxicology, inc.; Larry_Kapustka@golder.com.
There is a growing awareness that ecological risk assessments (ERAs) could be improved if they made better use of ecological information. In particular, landscape features that determine the quality of wildlife habitat can have a profound influence on the estimated exposure to stressors incurred by animals when they occupy a particular area. Various approaches to characterizing the quality of habitat for a given species have existed for some time. These approaches fall into three generalized categories: (1) entirely qualitative as in suitable or unsuitable, (2) semiquantitative as in formalized habitat suitability index models, or (3) highly quantitative site-specific characterization of population demographic data such as matrix population models or...
Tipo: Peer-Reviewed article Palavras-chave: Landscape ecology; Wildlife habitat characterization; Habitat suitability index models; Ecological risk assessments.
Ano: 2005
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Book of abstracts of the IUFRO landscape ecology working group international conference: forest landscapes and global change: new frontiers in management, conservation and restoration IPB - Escola Superior Agrária
Azevedo, João (Ed.); Feliciano, Manuel (Ed.); Castro, José (Ed.); Pinto, M. Alice (Ed.).
Tipo: Book Palavras-chave: Landscape ecology; Forestry; Global change; Portugal.
Ano: 2010 URL: http://hdl.handle.net/10198/2695
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Expert and Generalist Local Knowledge about Land-cover Change on South Africa’s Wild Coast: Can Local Ecological Knowledge Add Value to Science? Ecology and Society
Chalmers, Nigel; Rhodes University, South Africa;; Fabricius, Christo; Rhodes University, South Africa; c.fabricius@ru.ac.za.
Local ecological knowledge (LEK) can shed light on ecosystem change, especially in under-researched areas such as South Africa’s Wild Coast. However, for ecosystem planning purposes, it is necessary to assess the accuracy and validity of LEK, and determine where such knowledge is situated in a community, and how evenly it is spread. Furthermore, it is relevant to ask: does LEK add value to science, and how do science and local knowledge complement one another? We assessed change in woodland and forest cover in the Nqabara Administrative Area on South Africa’s Wild Coast between 1974 and 2001. The inhabitants of Nqabara are “traditional” Xhosa-speaking people who are highly dependent on natural resources for their...
Tipo: Peer-Reviewed Reports Palavras-chave: Cultivation; Fire; GIS; Land-cover change; Landscape ecology; Local ecological knowledge; Politics; Scientific knowledge; Vegetation.
Ano: 2007
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Feral honey bees in pine forest landscapes of East Texas IPB - Escola Superior Agrária
Coulson, Robert N.; Pinto, M. Alice; Tchakerian, Maria D.; Baum, Kristen A.; Rubink, William L.; Johnston, J. Spencer.
The goal of this study was to investigate the diversity of feral honey bee races in pine forest landscapes of east Texas, subsequent to immigration of Africanized honey bees, Apis mellifera scutellata. The specific objectives were (i) to assess the immigration of A. m. scutellata into east Texas pine forest landscapes and (ii) to evaluate the suitability of the pine forest landscape to feral honey bees. This mesoscale landscape study was conducted on the Sam Houston National Forest in east Texas. Swarm traps and aerial pitfall traps were used to monitor feral honey bees. Spatial databases were used to evaluate suitability of the pine forest landscape for honey bees. Scoring mitochondrial DNA type (mitotypes), we found representatives of A. mellifera...
Tipo: ConferenceObject Palavras-chave: Honey bees; Landscape ecology.
Ano: 2004 URL: http://hdl.handle.net/10198/3809
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Forest landscapes and global change. New frontiers in management, conservation and restoration. Proceedings of the IUFRO Landscape Ecology Working Group International Conference IPB - Escola Superior Agrária
Azevedo, João (Ed.); Feliciano, Manuel (Ed.); Castro, José (Ed.); Pinto, M. Alice (Ed.).
This volume contains the contributions of numerous participants at the IUFRO Landscape Ecology Working Group International Conference, which took place in Bragança, Portugal, from 21 to 24 of September 2010. The conference was dedicated to the theme Forest Landscapes and Global Change - New Frontiers in Management, Conservation and Restoration. The 128 papers included in this book follow the structure and topics of the conference. Sections 1 to 8 include papers relative to presentations in 18 thematic oral and two poster sessions. Section 9 is devoted to a wide-range of landscape ecology fields covered in the 12 symposia of the conference. The Proceedings of the IUFRO Landscape Ecology Working Group International Conference register the growth of...
Tipo: Book Palavras-chave: Landscape ecology; Forestry.
Ano: 2010 URL: http://hdl.handle.net/10198/2692
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Fragmentation: Is the Message Clear? Ecology and Society
Bissonette, John A; Utah Cooperative Fish and Wildlife Research Unit, U.S. Geological Survey; john.bissonette@cnr.usu.edu; Storch, Ilse; Wildlife Research and Management Unit, Technical University of Munich and Max Pl; ilse.storch@t-online.de.
In this paper, we briefly discuss some of the fundamental problems arising from the inherent complexity of larger-scale ecological systems. We examine the tenuous assumption of a direct correspondence between ecological data and theory, we comment on a recent report that evaluated the efficacy of fragmentation experiments, and we briefly assess its implications for ecological research and conservation practice on the landscape scale.
Tipo: Peer-Reviewed Reports Palavras-chave: Conservation; Experimentation; Fragmentation studies; Landscape ecology.
Ano: 2002
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Global-Scale Patterns of Forest Fragmentation Ecology and Society
Riitters, Kurt; U.S. Forest Service; kriitters@fs.fed.us; Wickham, James D; U.S. Environmental Protection Agency, National Exposure Research Laboratory; wickham.james@epa.gov; O'Neill, Robert; ; eoneill@attglobal.net; Jones, K. Bruce; U.S. Environmental Protection Agency, National Exposure Research Laboratory; jones.bruce@epa.gov; Smith, Elizabeth; U.S. Environmental Protection Agency, National Exposure Research Laboratory; smith.betsy@epa.gov.
We report an analysis of forest fragmentation based on 1-km resolution land-cover maps for the globe. Measurements in analysis windows from 81 km 2 (9 x 9 pixels, “small” scale) to 59,049 km 2 (243 x 243 pixels, “large” scale) were used to characterize the fragmentation around each forested pixel. We identified six categories of fragmentation (interior, perforated, edge, transitional, patch, and undetermined) from the amount of forest and its occurrence as adjacent forest pixels. Interior forest exists only at relatively small scales; at larger scales, forests are dominated by edge and patch conditions. At the smallest scale, there were significant differences in fragmentation among continents; within continents,...
Tipo: Peer-Reviewed Reports Palavras-chave: Biogeography; Edge effect; Forest fragmentation; Geographic information systems; Global patterns; Land-cover map; Landscape ecology; Modeling; Perforated forest; Remote sensing; Satellite imagery; Spatial pattern.
Ano: 2000
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Habitat Shape, Species Invasions, and Reserve Design: Insights from Simple Models Ecology and Society
Cumming, Graeme; University of Florida; cummingg@wec.ufl.edu.
Species invasions have become a major threat to global biodiversity. We currently lack a general theory of species invasions that allows us to make useful predictions about when and where invasions will occur, whether they will be successful, and whether they will alter ecosystem function in invaded habitats. One line of enquiry in developing such a theory is to focus on the characteristics of successful invaders. A second, complementary approach is to examine habitats of interest more closely and ask how the properties of the habitat that is being invaded affect the likelihood of invasion success. In this paper, I consider the importance of habitat shape (also termed "habitat topology" or "habitat geometry") as a variable affecting the dispersal and...
Tipo: Peer-Reviewed Reports Palavras-chave: Cellular automaton model; Colonization; Connectivity; Dispersal; Habitat complexity; Habitat geometry; Habitat shape; Landscape ecology; Reaction-diffusion model; Reserve design; Reserve networks; Species invasion.
Ano: 2002
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Herbaceous plant diversity across fire created edges in continental holm oak woodlands IPB - Escola Superior Agrária
Azevedo, João; Fernández-Núñez, E.; Miguel, L.; Amado, A.; Possacos, A.; Aguiar, Carlos.
We analyzed herbaceous plants distribution across edges of holm oak (Quercus rotundifolia) woodlands created and maintained by fire in order to describe plant community structure across edges and to evaluate the role of fire in the patterning of plant diversity at the patch scale. We recorded abundance in twelve 60 m long sampling lines placed perpendicularly to the woodlands boundary at 1, 5, 10, and 20m outside and 0, 1, 5, 10, 20, and 40m inside the woodlands, using the line intercept method (2 x 10 m line parallel to the boundary). In the same locations, we measured tree and shrub cover, height and density and recorded time since last fire disturbance. Data was analysed graphically and statistically using multivariate ordination...
Tipo: ConferenceObject Palavras-chave: Holm Oak; Edges; Diversity; Fire; Landscape ecology.
Ano: 2010 URL: http://hdl.handle.net/10198/3861
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How to Set Up a Research Framework to Analyze Social–Ecological Interactive Processes in a Rural Landscape Ecology and Society
Interdisciplinary research frameworks can be useful in providing answers to the environmental challenges facing rural environments, but concrete implementation of them remains empirical and requires better control. We present our practical experience of an interdisciplinary research project dealing with non-industrial private forestry in rural landscapes. The theoretical background, management, and methodological aspects, as well as results of the project, are presented in order to identify practical key factors that may influence its outcomes. Landscape ecology plays a central role in organizing the project. The efforts allocated for communication between scientists from different disciplines must be clearly stated in order to earn reciprocal trust....
Tipo: Peer-Reviewed Reports Palavras-chave: Fragmented forest; Interdisciplinary research; Landscape ecology.
Ano: 2007
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Insight on Invasions and Resilience Derived from Spatiotemporal Discontinuities of Biomass at Local and Regional Scales Ecology and Society
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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Online Publication Enhances Integration of Current Research in the Classroom Ecology and Society
Drew, C. Ashton; North Carolina State University; cadrew@unity.ncsu.edu; Hess, George R; North Carolina State University; george_hess@ncsu.edu.
Integrating current research materials and issues into graduate courses provides students with exposure to emerging concepts and methods. New online journal formats that allow authors to include raw data and model code provide a unique opportunity to bring current research into the classroom. We developed a graduate-level landscape ecology assignment using data and code provided as appendices to an article in Conservation Ecology. Our assignment required students to engage actively with the published material, was positively reviewed by the students, and prompted valuable discussion.
Tipo: Peer-Reviewed Reports Palavras-chave: Inquiry-guided learning; Landscape ecology; Modeling; Problem-based learning; Teaching.
Ano: 2003
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Planejamento para conservação dos recursos pantaneiros. Repositório Alice
SANTOS, R. F. dos; SILVA, J. dos S. V. da; ABDON, M. de M..
Este artigo argumenta que o planejamento da paisagem é um bom caminho para obter a conservação dos recursos pantaneiros. Apresenta as razões e as direções necessárias para que esse planejamento seja realizado sob o enfoque da ecologia da paisagem. Destaca a importância de considerar a análise em diferentes escalas e a avaliação das mudanças territoriais por meio da interpretação espacial dos cenários do passado e do presente. As considerações teóricas estão exemplificadas com o estudo de caso da bacia hidrográfica do rio Taquari, que tem grande influência sobre os impactos que degradam a região pantaneira.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sistema de informação geográfica; Ecologia da paisagem; Modelagem; Pantanal; Uso da terra; Geographic information systems; Landscape ecology; Models; Land use.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/9397
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Resident perceptions of natural resources between cities and across scales in the Pacific Northwest Ecology and Society
Morzillo, Anita T.; Department of Natural Resources & the Environment, University of Connecticut; anita.morzillo@uconn.edu; Kreakie, Betty J.; US EPA Office of Research and Development, National Health and Environmental Effects Laboratory, Atlantic Ecology Division; kreakie.betty@epa.gov; Netusil, Noelwah R.; Reed College, Department of Economics; netusil@reed.edu; Yeakley, J. Alan; University of Maryland, Baltimore County, Department of Geography and Environmental Systems; yeakley@pdx.edu; Ozawa, Connie P.; Portland State University, Toulan School of Urban Studies and Planning; ozawac@pdx.edu; Duncan, Sally L.; Oregon State University, School of Public Policy; Sally.Duncan@oregonstate.edu.
As the global population becomes increasingly urban, research is needed to explore how local culture, land use, and policy will influence urban natural resource management. We used a broad-scale comparative approach and survey of residents within the Portland (Oregon)-Vancouver (Washington) metropolitan areas, USA, two states with similar geographical and ecological characteristics, but different approaches to land-use planning, to explore resident perceptions about natural resources at three scales of analysis: property level (“at or near my house”), neighborhood (“within a 20-minute walk from my house”), and metro level (“across the metro area”). At the metro-level scale, nonmetric...
Tipo: Peer-Reviewed Reports Palavras-chave: Human dimensions; Landscape ecology; Natural resources; Pacific Northwest; Perceptions; Urban ecosystems.
Ano: 2016
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Setting Biodiversity Targets in Participatory Regional Planning: Introducing Ecoprofiles Ecology and Society
Opdam, Paul; Alterra Landscape Centre, Wageningen University and Research; Department of Land Use Planning, Wageningen University; paul.opdam@wur.nl; Pouwels, Rogier; Alterra Landscape Centre, Wageningen University and Research; rogier.pouwels@wur.nl; Rooij, Sabine van; Alterra Landscape Centre, Wageningen University and Research; sabine.vanrooij@wur.nl; Vos, Claire C; Alterra Landscape Centre, Wageningen University and Research; claire.vos@wur.nl.
In highly developed regions, ecosystems are often severely fragmented, whereas the conservation of biodiversity is highly rated. Regional and local actor groups are often involved in the regional planning, but when making decisions they make insufficient use of scientific knowledge of the ecological system that is being changed. The ecological basis of regional landscape change would be improved if knowledge-based systems tailored to the cyclic process of planning and negotiation and to the expertise of planners, designers and local interest groups were available. If regional development is to be sustainable, goals for biodiversity must be set in relation to the actual and demanded patterns of ecosystems. We infer a set of prerequisites for the effective...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Biodiversity targets; Ecosystem networks; Landscape ecology; Metapopulation persistence; Multifunctional landscapes; Multi-stakeholder decision making; Regional planning; Sustainable development.
Ano: 2008
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Spatial Complexity, Resilience, and Policy Diversity: Fishing on Lake-rich Landscapes Ecology and Society
Carpenter, Stephen R; University of Wisconsin-Madison; srcarpen@wisc.edu; Brock, William A; University of Wisconsin-Madison; wbrock@ssc.wisc.edu.
The dynamics of and policies governing spatially coupled social-ecological mosaics are considered for the case of fisheries in a lake district. A microeconomic model of households addresses agent decisions at three hierarchic levels: (1) selection of the lake district from among a larger set of alternative places to live or visit, (2) selection of a base location within the lake district, and (3) selection of a portfolio of ecosystem services to use. Ecosystem services are represented by dynamics of fish production subject to multiple stable domains and trophic cascades. Policy calculations show that optimal policies will be highly heterogeneous in space and fluid in time. The diversity of possible outcomes is illustrated by simulations for a hypothetical...
Tipo: Peer-Reviewed Reports Palavras-chave: Angler dynamics; Fish habitat; Inclusive value; Lake; Lake management; Landscape ecology; Multiple attractors; Natural resource policy; Resilience; Social-ecological system; Spatial dynamics; Sport fishery; Sport fishery; Sport fishery management.
Ano: 2004
Registros recuperados: 23
Primeira ... 12 ... Última
 

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