Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T02:46:30.688Z Has data issue: false hasContentIssue false
  • English
  • Français

Invasibility Patterns of Knotgrass (Paspalum distichum) in Portuguese Riparian Habitats

Published online by Cambridge University Press:  20 January 2017

Francisca C. Aguiar ,
M. Teresa Ferreira ,
António Albuquerque  and
Ivan Bernez
Francisca C. Aguiar*
Affiliation:
Instituto Superior de Agronomia; Departamento de Engenharia Florestal, Tapada da Ajuda, 1349-017 Lisbon, Portugal
M. Teresa Ferreira
Affiliation:
Instituto Superior de Agronomia; Departamento de Engenharia Florestal, Tapada da Ajuda, 1349-017 Lisbon, Portugal
António Albuquerque
Affiliation:
Instituto Superior de Agronomia; Departamento de Engenharia Florestal, Tapada da Ajuda, 1349-017 Lisbon, Portugal
Ivan Bernez
Affiliation:
Laboratoire d' Ecologie et Sciences Phytosanitaires, ENSAR, 65 Rue de Saint-Brieuc, 35042 Rennes, France
*
Corresponding author's E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Spatial patterns of the exotic riverine knotgrass (Paspalum distichum L.) were examined in Mediterranean river basins in Southwestern Iberia. The major goals of this study were to assess the degree of invasibility of riparian habitats by this species and to determine the influence of environmental factors and human-induced disturbances that this knotgrass has on both the landscape and the habitat scales. The present study demonstrates the ability of knotgrass to invade riparian habitats in Portuguese freshwater ecosystems. However, most of the spatial variation of the knotgrass cover seemed to be driven by local factors, such as fine sediment enrichment and the fragmentation of riparian woods, and by other anthropogenic interferences in relation to both the fluvial system and the surrounding landscape.

Keywords

KnotgrassPaspalum distichum L. # PASDSExotic specieshuman disturbancesenvironmental variablesPASDSMediterranean basin
Type
Symposium
Information
Weed Technology , Volume 19 , Issue 3 , September 2005 , pp. 509 - 516
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Aguiar, F., Moreira, I., and Ferreira, M. T. 1996. A percepção da vegetação aquática infestante pelas entidades gestoras dos recursos hídricos (English abstract title: Perception of aquatic weed problems in Portugal by water resources managers). Rev. Cienc. Agrar. 19:35–56.Google Scholar
Aguiar, F. C., Ferreira, M. T., and Moreira, I. 2001. Exotic and native vegetation establishment following channelization of a western Iberian river. Regul. Rivers Res. Manag. 17:509–526.Google Scholar
Braun-Blanquet, J. 1932. Plant Sociology: The Study of Plant Communities (English translation). New York: McGraw-Hill.Google Scholar
Costa, J. C., Capelo, J., Espírito-Santo, M. D., Lous&atilde, M., Monteiro, A., Mesquita, S., Vasconcelos, M. T., and Moreira, I. 1999. Plant communities of the lagoons of the Portuguese Coastal Superdistrict—a multivariate approach. Hydrobiologia 415:67–75.Google Scholar
Dawson, F. H. and Kern-Hansen, U. 1978. Aquatic weed management in natural streams: the effect of shade by the marginal vegetation. Verh. Internat. Verein. Limnol. 20:1429–1434.Google Scholar
DiTomaso, J. M. and Healy, E. A. 2002. Aquatic and Riparian Weeds of the West. Publ. 3421. Oakland, CA: University of California Agriculture and Natural Resources.Google Scholar
Ferreira, M. T., Albuquerque, A., Aguiar, F. C., and Catarino, L. F. 2001. Seasonal and yearly variations of macrophytes in a southern Iberian river. Verh. Internat. Verein. Limnol. 27:3833–3837.Google Scholar
Ferreira, M. T., Albuquerque, A., Aguiar, F. C., and Sidorkewicz, N. 2002. Assessing reference sites and ecological quality of river plant assemblages from an Iberian basin using a multivariate approach. Arch. HydroBiol. 155:121–145.Google Scholar
Ferreira, M. T. and Moreira, I. S. 1995. The invasive component of a river flora under the influence of Mediterranean agricultural systems. in Pysek, P., Prach, K., Rejmanek, M., and Wade, M., eds. Plant Invasions— General Aspects and Special Problems. Amsterdam: SPB Academic. Pp. 117–127.Google Scholar
Franco, J. A. and Rocha-Afonso, M. L. 1980. Distribuição em Portugal das principais infestantes. in Proceeding of the I Congresso de Fitiatria e Fitofarmacologia, Lisboa. Pp. 1–22.Google Scholar
Franco, J. A. and Rocha-Afonso, M. L. 1998. Nova Flora de Portugal (Continente e Açores). 3. Gramineae. Lisboa: Escolar Editora.Google Scholar
Gasith, A. and Resh, V. H. 1999. Streams in Mediterranean climate regions: abiotic influences and biotic responses to predictable seasonal events. Annu. Rev. Ecol. Syst. 30:51–81.Google Scholar
Guillerm, J. L., Le Floc'h, E., Maillet, J., and Boulet, C. 1990. The invading weeds within the Western Mediterranean Basin. in di Castri, F., Hansen, A. J., and Debussche, M., eds. Biological Invasions in Europe and in the Mediterranean Basin. Dordrecht: Kluwer. Pp. 61–84.Google Scholar
Huang, W. Z., Hsiao, A. I., and Jordan, L. 1987. Effects of temperature, light and certain growth regulation substances on sprouting, rooting and growth of single-node rhizome and shoot segments of Paspalum distichum L. Weed Res. 27:57–67.Google Scholar
Le Floc'h, E. 1991. Invasive plants of the Mediterranean Basin. in Groves, R. H. and de Castri, F., eds. Biogeography of the Mediterranean Invasions. Cambridge, U.K.: Cambridge University Press. Pp. 67–80.CrossRefGoogle Scholar
Liu, S. H., Hsiao, A. I., and Quick, W. A. 1991. The influence of leaf blade, nutrients, water and light on the promotion of axillary bud growth of isolated single-node stem segments of Paspalum distichum L. Weed Res. 31:385–394.Google Scholar
McIntyre, S. and Lavorel, S. 1994. Predicting richness of native, rare and exotic plants in response to habitat and disturbance variables across a variegated landscape. Conserv. Biol. 8:521–531.CrossRefGoogle Scholar
Ministério do Ambiente. 1999. Decreto-Lei n° 565/99 de 21-12-1999, Espé cies não indígenas da flora e da fauna. Diário Repub. I Ser. A. 295:9100–9114.Google Scholar
Mouw, J. E. B. and Alaback, P. B. 2003. Putting floodplain hyperdiversity in a regional context: an assessment of terrestrial-floodplain connectivity in a montane environment. J. Biogeogr. 30:87–103.CrossRefGoogle Scholar
P-Clima. 1999. Software Provedor de Dados Climatológicos para Portugal. Version 1.2. Aguiar, R., ed. Projecto ALTENER XVII/4.1013/Z/96-092. Lisbon, Portugal: INETI/DER.Google Scholar
Planty-Tabacchi, A. M., Tabacchi, E., Naiman, R. J., De Ferrari, C., and Décamps, H. 1996. Invasibility of species-rich community in riparian zones. Conserv. Biol. 10:598–607.Google Scholar
Raunkiaer, C. 1934. The Life Forms of Plants and Statistical Geography. Oxford, UK: Clarendon.Google Scholar
Sampaio, G. 1909. Flora Portuguesa. Porto: Imprensa Moderna.Google Scholar
Silva, A. R. P. 1940. O género Paspalum em Portugal. Agron. Lusit. 2:5–23.Google Scholar
Strahler, A. N. 1957. Quantitative analysis of watershed geomorphology. Trans. Am. Geophys. Union 38:913–920.Google Scholar
Vasconcelos, T., Tavares, M., and Gaspar, N. 1999. Aquatic plants in the rice fields of the Tagus Valley, Portugal. Hydrobiologia 415:59–65.Google Scholar