SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Roberts, S. M.; Hursthouse, Michael B.; Coles, Simon J.; Barkley, J. V.; Gregory, R. J. H.; Hibbs, D. E..

Palavras-chave: C~14~H~24~BrNO~2~Si; Organic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/105/

97SRC237

Butler, Ian R.; Coles, Simon J.; Hursthouse, Michael B..

bis(1,3-Benzothiazole-2-thiolato-S)-mercury(ii)

Palavras-chave: C~25~H~15~ClFeO~2~; Organometallic; Iron compounds; Ferrocene compounds.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/1039/

Sammon, C.; Raper, E. S.; Mansor, R.; Hursthouse, Michael B.; Hibbs, D. E.; Constable, C. P.; Coles, Simon J.; Bell, N. A..

Dibromo-bis(1,3-thiazolidine-2-thione)-mercury(ii)

Palavras-chave: C~14~H~8~HgN~2~S~4~; Inorganic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/225/

Sammon, C.; Raper, E. S.; Mansor, R.; Hursthouse, Michael B.; Hibbs, D. E.; Constable, C. P.; Coles, Simon J.; Bell, N. A..

Palavras-chave: C~6~H~10~Br~2~HgN~2~S~4~; Inorganic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/96/

97SRC027 (991)

Butler, Ian. R.; Coles, Simon J.; Hursthouse, Michael B..

bis(1,3-Benzothiazole-2-thiolato-S)-mercury(ii)

Palavras-chave: C~17~H~11~BrFeMoO~6~; Organometallic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/766/

Sammon, C.; Raper, E. S.; Mansor, R.; Hibbs, D. E.; Constable, C. P.; Bell, N. A.; Coles, Simon J.; Hursthouse, Michael B..

2-Bromo-3-hydroxy-6-cyano-6-(t-butyldimethylsiloxy)bicyclo(3.2.0)heptane

Palavras-chave: C~14~H~8~HgN~2~S~4~; Inorganic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/97/

Hibbs, D. E.; Hursthouse, Michael B.; Coles, Simon J.; Barkley, J. V.; Roberts, S. M.; Gregory, R. J. H..

1-(2,2-bis(Pyrid-2-yl)ethenyl)ferrocene

Palavras-chave: C~14~H~24~BrNO~2~Si; Organic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/155/

Tucker, J. H. R.; Hursthouse, Michael B.; Coles, Simon J.; Carr, J. D..

7-Chloro-6-cyano-6-hydroxybicyclo(3.2.0)hept-2-ene

Palavras-chave: C~22~H~18~FeN~2~; Organometallic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/90/

Hibbs, D. E.; Hursthouse, Michael B.; Coles, Simon J.; Barkley, J. V.; Roberts, S. M.; Gregory, R. J. H..

Palavras-chave: C~8~H~8~ClNO; Organic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/104/

97SRC016 (988)

Pelter, Andy; Hibbs, Dai E.; Hursthouse, Michael B..

Palavras-chave: C~26~H~26~BrNO; Organic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/791/

97SRC009(984)

Butler, Ian. R.; Coles, Simon J.; Hursthouse, Michael B..

Palavras-chave: C~24~H~18~Fe; Organometallic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/765/

97SRC241 (337)

Gabbut, C.D.; Hepworth, John D.; Hibbs, Dai. E.; Hursthouse, Michael B.; Lamond, Steven J..

Using Ants as bioindicators: Multiscale Issues in Ant Community Ecology

Palavras-chave: C~28~H~20~O~8~; Organic.

Ano: 1997

URL: http://ecrystals.chem.soton.ac.uk/792/

Andersen, Alan; Wildlife and Ecology, CSIRO Tropical Ecosystems Research Centre; Alan.Andersen@terc.csiro.au.

Ecological patterns and processes are characteristically scale dependent, and research findings often cannot be translated easily from one scale to another. Conservation biology is challenged by a lack of congruence between the spatial scales of ecological research (typically involving small plots) and land management (typically involving whole landscapes). Here, I discuss spatial scaling issues as they relate to an understanding of ant communities and, consequently, their use as bioindicators in land management. Our perceptions of fundamental patterns and processes in ant communities depend on scale: taxa that are behaviorally dominant at one scale are not necessarily so at others, functional groups recognized at one scale are often inappropriate for...

Tipo: Peer-Reviewed Reports

Palavras-chave: Ants; Biodiversity surrogacy; Bioindicators; Community; Diversity patterns; Functional groups; Multiscale; Spatial scale..

Ano: 1997

Bridging the Gap between Ecology and Resource Management

Pulliam, Ron; ; pulliam@ecology.uga.edu.

Tipo: Peer-Reviewed Reports

Ano: 1997

Commentary on Gordon Baskerville's Perspective

Gallopin, Gilberto C; Economic Commission for Latin America and the Caribbean, Environment and Human S; ggallopin@eclac.cl.

Tipo: Peer-Reviewed Reports

Ano: 1997

Commentary on Gordon Baskerville's Perspective

Fujii, Koichi; university; fujiiko@sakura.cc.tsukuba.ac.jp.

Tipo: Peer-Reviewed Reports

Ano: 1997

Commentary on Gordon Baskerville's Perspective

Franklin, Jerry; University of Washington; jff@u.washington.edu.

Tipo: Peer-Reviewed Reports

Ano: 1997

The Multifaceted Aspects of Ecosystem Integrity

De Leo, Giulio A; Agenzia Regionale per la Protezione dell' Ambiente; deleo@dsa.unipr.it; Levin, Simon A; Princeton University; slevin@eno.princeton.edu.

The need to reduce human impacts on ecosystems creates pressure for adequate response, but the rush to solutions fosters the oversimplification of such notions as sustainable development and ecosystem health. Hence, it favors the tendency to ignore the complexity of natural systems. In this paper, after a brief analysis of the use and abuse of the notion of ecosystem health, we address the problem of a sound definition of ecosystem integrity, critically review the different methodological and conceptual approaches to the management of natural resources, and sketch the practical implications stemming from their implementation. We show thatthere are merits and limitations in different definitions of ecosystem integrity, for each acknowledges different...

Tipo: Peer-Reviewed Reports

Palavras-chave: Adaptive management; Biodiversity; Complexity and stability; Conservation strategies; Disturbance anthropogenic; Disturbance natural; Ecosystem integrity; Ecosystem functioning; Ecosytem structure; Natural resource management; Resilience; Sustainable development..

Ano: 1997

Detecting Critical Scales in Fragmented Landscapes

Keitt, Timothy; State University of New York at Stony Brook; Timothy.Keitt@StonyBrook.Edu; Urban, Dean L; Duke University; deanu@pinus.env.duke.edu; Milne, Bruce T; University of New Mexico; bmilne@sevilleta.unm.edu.

We develop methods for quantifying habitat connectivity at multiple scales and assigning conservation priority to habitat patches based on their contribution to connectivity. By representing the habitat mosaic as a mathematical "graph," we show that percolation theory can be used to quantify connectivity at multiple scales from empirical landscape data. Our results indicate that connectivity of landscapes is highly scale dependent, exhibiting a marked transition at a characteristic distance and varying significantly for organisms with different dispersal behavior. More importantly, we show that the sensitivity and importance of landscape pattern is also scale dependent, peaking at scales associated with the percolation transition. In addition, the...

Tipo: Peer-Reviewed Reports

Palavras-chave: Connectivity; Conservation in fragmented landscapes; Dispersal; Fragmentation; Habitat connectivity vs. dispersal distance; Landscape; Landscape graphs; Metapopulation; Percolation; Quantifying habitat connectivity at multiple scales; "stepping stone" patch; Strix occidentalis lucida..

Ano: 1997

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