Abstract
Traditionally, numerous criteria have been used for selecting valuable areas for the establishment of nature reserves. In most cases these criteria are applied indiscriminately with the assumption that their generalized use gives them universal validity. In this study we test the value of different variables (area and shape of patches of natural vegetation, degree of internal fragmentation, and diversity of habitats at the periphery of patches) at the landscape level as indicators of plant richness and diversity, and relative abundance of native plants, in a group of natural vegetation relicts ranging from 0.004 km2 to 1.027 km2 and surrounded by sub-urban and industrial settings. Species richness, diversity, and number of native and exotic species increased with the area of the patches. The shape of the patch was the second most important variable to influence species richness and diversity. The number of exotic species increased with increasing numbers of native plants. Thus, patch size and plant richness should be carefully used for selecting conservation areas because it could result in choosing places threatened by the presence of exotics. Many of the other variables analysed showed no effects on biodiversity at the temporal and geographic scales considered. Ignoring these outcomes could result in choosing sub-optimal areas. We recommend the critical use of general criteria considering the selection process as an opportunity to evaluate the relevance of each criterion at the local level.
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References
Barrett NE, Barrett JP (1997) Reserve design and the new conservation theory. In: Pickett STA, Ostfeld RS, Shachak M and Likens GE (eds) The ecological basis of conservation, chapter 19. Chapman and Hall, New York, USA
Belbin L (1995) A multivariate approach to the selection of biological reserves. Biodivers Conserv 4:951–963
Burgos J, Vidal A (1951) Los climas de la República Argentina según la nueva clasificación de Thorntwite. Meteoros I (1)
Cabeza M, Moilanen A (2001) Design of reserve networks and the persistence of biodiversity. Trends Ecol Evol 16(5):242–248
Chaneton EJ, Perelman SB, Omacini M, Leon RJC (2002) Grazing, environmental heterogeneity, and alien plant invasions in temperate Pampa grasslands. Biol Invas 4(1–2):7–24
Coblentz BE (1990) Exotic organisms: a dilemma for conservation biology. Conserv Biol 4:261–265
Dellafiore C (1997) Distribución y abundancia del Venado de las Pampas en la provincia de San Luis, Argentina. Dissertation, Universidad Nacional de Córdoba, Córdoba, Argentina
Ecological Consulting Inc. (1998) CAMRIS – Sistema de Mapeo e Inventario de Recursos Asistido por Computadora
Elton C (1958) The ecology of invasions by animals and plants. Methuen, London, UK
Fritts S, Carbyn L (1995) Population viability, nature reserves, and the outlook for gray wolf conservation in North America. Restor Ecol 3:26–38
GISP (2006) South America invaded. The growing threat of invasive alien species. Global invasive species program. Cape Town, South Africa
Götmark F, Nilsson C (1992) Criteria used for protection of natural areas in Sweden 1909–1986. Conserv Biol 6:220–232
Hobbs RJ, Huenneke LF (1992) Disturbance, diversity, and invasion: implications for conservation. Conserv Biol 6:324–337
IUCN (1997) Conserving vitality and diversity. In: Rubec CDA, Lee GO (eds) Proceedings of the world conservation congress workshop on alien invasive species. Ottawa, Canada
IUCN (2000) IUCN Guidelines for the prevention of biodiversity loss caused by alien invasive species. Prepared by the Invasive Species Specialist Group. Approved by the 51st Meeting of the IUCN Council, Gland, Suiza
Kershaw M, Mace G, Williams PH (1995) Threatened status, rarity, and diversity as alternative selection measures for protected areas: a test using afrotropical antelopes. Conserv Biol 9:324–355
Kunin WE (1997) Sample shape, spatial scale and species counts: implications for reserve design. Biol Conserv 82:369–376
Lamberson R, Noon B, Voss C, Mckelvey K (1994) Reserve design for territorial species: the effects of patch size and spacing on the viability of the northern spotted owl. Conserv Biol 8:185–196
Lonsdale WM (1999) Global patterns of plant invasion and the concept of invasibility. Ecology 80(5):1522–1536
Macdonald IAW, Loope LL, Usher MB and Hamann O (1989) Wildlife conservation and the invasion of natural reserves by introduced species: a global perspective. In: Drake JA, Mooney HA, di Castri F, Groves RH, Kruger FJ, Rejmanek M, Williamson M (eds) Biological invasions: a global perspective, SCOPE 37, chapter 9. John Wiley, New York, USA
Margules CR, Pressey RL, Nicholls AO (1991) Selecting nature reserves. In: Margules CR, Austin PM (eds) Nature conservation: cost effective biological surveys and data analysis, chapter 14. CSIRO, Melbourne, Australia
Mueller-Dombois D, Ellenberg E (1974) Aims and methods of vegetation ecology. John Wiley and Sons, New York, Chichester, Brisbane, Toronto
Myers JH, Bazely DR (2003) Ecology and control of introduced plants. Cambridge University Press, Cambridge, UK
Nebbia AJ, Zalba SM (2002) Relicts of natural vegetation in the coast of Bahía Blanca (Buenos Aires, Argentina): their potential for establishing a nature reserve. In: Annals 29th International Symposium on Remote Sensing of the Environment, Buenos Aires, 8–12 April 2002
Primack R, Rozzi R, Feisinger P, Dirzo R, Massardo F (2001) Fundamentos de conservación biológica, perspectivas latinoamericanas. Fondo de Cultura Económica, México
Rothley KD, Berger CN, Gonzalez C, Webster EM, Rubenstein DI (2003) Combining strategies to select reserves in fragmented landscapes. Conserv Biol 18:1121–1131
Sabatini MC, Rodríguez Iglesia RM (2001) A global context for the evolution and current status of protected areas in Argentina. Nat Areas J 21:274–281
Saunders DA, Hobbs RJ (1991) The role of corridors in conservation: what do we know and where do we go? In: Saunders DA, Hobbs RJ (eds) Nature conservation 2: the role of corridors. Surrey Beatty and Sons, Chipping Norton, NSW
Sax DF (2002) Native and naturalized plant diversity are positively correlated in scrub communities of California and Chile. Divers Distrib 8:193–210
Schonewald-Cox C (1988) Boundaries in the protection of nature reserves. BioScience 38(7):480–486
SMN (1981) Estadísticas climatológicas 1951–1970. Servicio Meteorológico Nacional, Fuerza Aérea Argentina. Buenos Aires
Soulé ME (ed.) (1989) Viable populations for conservation. Cambridge University Press, Cambridge, UK
Spellerberg I (1992) Evaluation and assessment for conservation. Chapman and Hall, New York, USA
Strittholt J, Boerner R (1995) Applying biodiversity gap analysis in regional nature reserve design for the edge of Appalachia, Ohio (USA). Conserv Biol 9:1492–1506
Tilman D (1999) The ecological consequences of changes in biodiversity: a search for general principles. Ecology 80:1455–1474
Usher MB, Brown AC, Bedford SE (1992) Plant species richness in farm woodlands. Forestry 65(1):1–13
Wiens JA (1997) The emerging role of patchiness in conservation biology. In: Pickett STA, Ostfeld RS, Shachak M, Likens GE (eds) The ecological basis of conservation, chapter 7. Chapman and Hall, New York, USA
Williams P, Gibbons D, Margules C, Rebelo A, Humphries C, Pressey R (1996). A comparison of richness hotspots, rarity hotspots, and complementary areas for conserving the diversity of british birds. Conserv Biol 10:155–175
Wittenberg R, Cock MJW (2001) Invasive alien species: a toolkit for best prevention and management practices. CABI Publishing, Wallingford, Oxon, UK
Acknowledgements
We wish to express our thanks to Pamela Geddes who kindly help in the revision of this manuscript. This work received financial support from the CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas).
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Nebbia, A.J., Zalba, S.M. Designing nature reserves: traditional criteria may act as misleading indicators of quality. Biodivers Conserv 16, 223–233 (2007). https://doi.org/10.1007/s10531-006-9139-1
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DOI: https://doi.org/10.1007/s10531-006-9139-1