نتایج جستجو برای: conservation and restoration

تعداد نتایج: 16850594  

حیدری, مهدی , فرامرزی, مرزبان ,

In most ecosystems, disturbance is an important agent of variation in community structure and composition. Determining the diversity and composition of soil seed bank is essential for designing conservation and restoration programs because it can markedly contribute to future plant communities. Despite the important role of soil seed banks in the composition of different plant communities, and...

1997
Andy P. Dobson A. D. Bradshaw A. J. M. Baker

44. J. F. Caddy and R. Mahon, FAO Fish. Tech. Pap. 347 (1995). 45. Saetersdal, Rapp. P. V. Reun. Cons. Int. Explor. Mer. 177, 505 (1980); J. Caddy and J. Gulland, Mar. Policy 7, 267 (1983); V. S. Kennedy and L. L. Breisch, J. Environ. Manage. 16, 153 (1983); A. A. Rosenberg , M. J. Fogarty, M. P. Sissenwine, J. R. Beddington, J. G. Shepherd, Science 262, 828 (1993); B. Holmes, ibid. 264, 1252 (...

Journal: :Revista de biologia tropical 2015
J Antonio Guzmán S Heiner Vega

Changes in land use are mainly a consequence of anthropogenic actions. The current agricultural and urban transformations in Costa Rica have raised questions about the effectiveness of conservation and restoration within protected areas. Herein we analyzed the patterns of land use change between three periods: 1997, 2005 and 2010 in terms of magnitude, direction, and pace through categorical ma...

Journal: :Trends in ecology & evolution 2009
Katharine N Suding Richard J Hobbs

The recognition that a system can appear resilient to changes in the environment, only to reach a critical threshold of rapid and unexpected change, is spurring work to apply threshold models in conservation and restoration. Here we address the relevance of threshold models to habitat management. Work to date indicates these concepts are highly applicable: human impacts can widen the range of h...

2015
JOHN A. WIENS

Conservation biology and restoration ecology share a common interest in maintaining or enhancing populations, communities, and ecosystems. Much could be gained by more closely integrating the disciplines, but several challenges stand in the way. Goals differ, reflecting different origins and agendas. Because resources are insufficient to meet all needs, priorities must be established. Rapid env...

2007
Jose A. Carrera Estanislao de Simon Manuel Fisac

Dr. Engineers, ICONA (Instituto National para la Conservacion de la Naturaleza), Madrid, Spain. Abstract: Management of the fragile and greatly modified ecosystems in the Spanish Mediterranean climate is complex. Rainfall occurs in a few intensive storms on rough topography. Climax vegetation is sparse forest dominated by evergreen xerophilic species. The emphases of the National Institute for ...

2002
Flávio H. C. Nunes Luiz A. C. Souza Arnaldo de Albuquerque Araújo Marcelo A. Correa

This poster describes the process of modelling and implementing a multimedia information system for CECOR-Center for Conservation and Restoration of Cultural Movable Properties. The new system includes a multimedia system which contains information about the restored objects, their materials and techniques, images generated by methods of diagnosis, results of scientific analysis, etc. The new s...

2007
Benjamin S Halpern Brian R Silliman Julian D Olden John P Bruno Mark D Bertness

© The Ecological Society of America www.frontiersinecology.org P interactions are traditionally defined as interactions in which one species benefits from the presence of another species, without harm (and, potentially, with benefit) to the latter. Common examples include mutualisms (both species benefit), commensalisms (one species benefits with no measurable effect on another species), and fa...

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