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Efecto acumulativo de agentes estresantes múltiples sobre los corales hermatípicos de la región noroccidental de Cuba OceanDocs
González Díaz, S. P..
En las últimas décadas ha ocurrido un deterioro acelerado de los arrecifes de coral debido al efecto sinérgico de impactos naturales y antrópicos. En consecuencia, el objetivo de la tesis es evaluar los efectos acumulativos producidos por agentes estresantes múltiples y que impactan de forma simultánea los corales hermatípicos. Para ello se estimaron indicadores ecológicos en los niveles de comunidad y población. Los resultados obtenidos en esta investigación evidencian cambios en la estructura de las comunidades de corales que se asocian con el impacto antrópico directo existente a lo largo de la costa noroccidental de Cuba y que disminuye en la dirección este-oeste. Los indicadores ecológicos referidos a las tallas de los corales, muestran...
Tipo: Theses and Dissertations Palavras-chave: Coral reefs; Agents; Sedimentation; Eutrophication.
Ano: 2010 URL: http://hdl.handle.net/1834/5385
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Framing Sustainability in a Telecoupled World Ecology and Society
Liu, Jianguo; Michigan State University, USA; liuji@msu.edu; Hull, Vanessa; Michigan State University, USA; hullvane@csis.msu.edu; Batistella, Mateus; EMBRAPA Satellite Monitoring, Campinas, SP, Brazil; mb@cnpm.embrapa.br; DeFries, Ruth; Columbia University, USA; rd2402@columbia.edu; Dietz, Thomas; Michigan State University, USA; tdietz@msu.edu; Fu, Feng; Massachusetts Institute of Technology, USA; fufengenergy@gmail.com; Hertel, Thomas W.; Purdue University, USA; hertel@purdue.edu; Izaurralde, R. Cesar; University of Maryland, USA; cesar.izaurralde@pnnl.gov; Lambin, Eric F.; Stanford University, USA; elambin@stanford.edu; Li, Shuxin; Michigan State University, USA; lishu@msu.edu; McConnell, William J.; Michigan State University, USA; mcconn64@msu.edu; Moran, Emilio F.; Michigan State University, USA; moranef@msu.edu; Naylor, Rosamond; Stanford University, USA; Roz@stanford.edu; Ouyang, Zhiyun; Chinese Academy of Sciences, Beijing, China; zyouyang@rcees.ac.cn; Polenske, Karen R.; Massachusetts Institute of Technology, USA; krp@mit.edu; Reenberg, Anette; University of Copenhagen, Copenhagen, Denmark; Ar@geogr.ku.dk; Simmons, Cynthia S.; Michigan State University, USA; simmo108@msu.edu; Verburg, Peter H.; Institute for Environmental Studies, VU University Amsterdam, Netherlands; Peter.Verburg@ivm.vu.nl; Vitousek, Peter M.; Stanford University, USA; vitousek@leland.stanford.edu; Zhang, Fusuo; China Agricultural University, Beijing, China; zhangfs@cau.edu.cn; Zhu, Chunquan; International Union for Conservation of Nature, China; caomu1963@126.com.
Interactions between distant places are increasingly widespread and influential, often leading to unexpected outcomes with profound implications for sustainability. Numerous sustainability studies have been conducted within a particular place with little attention to the impacts of distant interactions on sustainability in multiple places. Although distant forces have been studied, they are usually treated as exogenous variables and feedbacks have rarely been considered. To understand and integrate various distant interactions better, we propose an integrated framework based on telecoupling, an umbrella concept that refers to socioeconomic and environmental interactions over distances. The concept of telecoupling is a logical extension of research on...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Agents; Causes; Coupled human-environment systems; Coupled human and natural systems; Coupled social-ecological systems; Dispersal; Distant interactions; Effects; Feedbacks; Flows; Globalization; Investment; Knowledge transfer; Migration; Socioeconomic and environmental interactions; Species invasion; Sustainability; Technology transfer; Teleconnection; Telecoupling; Trade; Transnational land deals; Water transfer.
Ano: 2013
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Homeland Security and the Rules of International Trade AgEcon
Kerr, William A..
International trade law is very clear: national security concerns take precedent over any commitments in trade agreements. In response to the terrorist attacks in New York and Washington on September 11, 2001, the United States and other countries have been putting in place new anti-terrorist measures, many of which will act to inhibit international trade. As with any measure that inhibits international trade, these new measures will provide an economic benefit to domestic vested interests in importing countries. Guarding against the possibility of terrorist acts is by nature a speculative activity, and it is difficult to refute the need for the anti-terrorist measures put in place by governments. As a result, trading partners may be frustrated by what...
Tipo: Journal Article Palavras-chave: Agents; Capture; Cost; Essential security interests; Homeland security; National security; Protectionism; Terrorism; International Relations/Trade.
Ano: 2004 URL: http://purl.umn.edu/23852
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Manual do agente comunitario de desenvolvimento rural. Infoteca-e
PORTO, E. R.; MENELAU, A. da S.; RAMOS, G. de L.; BARBOSA, C. A. V.; OLIVEIRA, M. F. de; MAURÍCIO, A. J. de H..
bitstream/item/136347/1/ID-11271.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Agente comunitario; Pernambuco; Communities; Agents; Cartilha.; Desenvolvimento Rural.; Rural development..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/136804
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