Irrigation canals in a semi-arid agricultural landscape surrounded by wetlands: Their role as a habitat for birds during the breeding season

Traditional water supply systems in semi-arid agrarian ecosystems, mainly irrigation canals, contribute to the diversity of the landscape and influence the composition of species. To evaluate their effect on bird communities in the breeding season, we selected a rural area in southeastern Spain, where an intricate and extensive network of irrigation canals and cultivated areas is located between two wetlands declared as Natural Parks. Birds were counted at representative points distributed throughout the canal network at which we recorded several variables related to the physical features, the vertical and horizontal structure of associated vegetation, reed development (Phragmites australis) and land use in the neighboring areas. We detected 37 bird species, most of which were also breeding in the wetlands nearby. We used Hierarchical Partitioning analyses to identify the variables most strongly related to the probability of the presence of selected species and species richness. Vegetation cover and height close to the canals, together with reed development, were the most important types of variables explaining species presence and richness. We found that current management practices for reeds in canals are not well-suited for biodiversity conservation. We therefore propose alternatives that could be implemented in the area in cooperation with stakeholders.

Propostes d'intervenció en la Glorieta d'Elx en la celebració del primer centenari de la formació d'aquest espai públic. Llonja de la Plaça de Baix, 3-31 d'agost del 1990

En este opúsculo se presentan el texto y los dibujos de las cuatro propuestas de reconstrucción de la Glorieta de Elche (uno de los espacios urbanos centrales más emblemáticos de la ciudad), proyectadas por el arquitecto municipal Gaspar Jaén i Urban en 1990 y sometidas a la opinión de la ciudadanía. De este anteproyecto salió el documento proyectual definitivo que sirvió para las obras realizadas en la Glorieta en 1995-1996. Esta actuación se inscribía dentro de la política de los ayuntamientos españolas en las décadas de los ochenta y primeros noventa de recualificar "democráticamente" el espacio urbano asolado por la especulación de los años sesenta y setenta, durante el franquismo.

The Effects of wastewater treatment facilities on wetlands in the Midwest /

Mode of access: Internet.

Louisiana wetlands prospectus: conclusions, recommendations, and proposals.

Includes bibliographical references.

Nuclear and chemical safety, Y2K issues : hearing before the Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Sixth Congress, first session, February 24, 1999.

Shipping list no.: 99-0276-P.

The U.S. Fish and Wildlife Service's National Wetlands Inventory Project /

Mode of access: Internet.

Wetlands of the United States : current status and recent trends /

Mode of access: Internet.

Wetlands of Rhode Island /

Mode of access: Internet.

Coastal wetlands of the United States : an accounting of a valuable national resource /

Mode of access: Internet.

Inland wetlands of the United States : evaluated as potential registered natural landmarks /

Mode of access: Internet.

A Field guide to the wetlands of Illinois.

Includes index.

A Field guide to the wetlands of Illinois.

Includes index.

Habitat parameters of the Hine's Emerald Dragonfly : using temperatures loggers to assess hydrological regime in wetlands supporting the larval states, Lockport Prairie section 206 project, final report /

"Submitted to: the U.S. Fish and Wildlife Service" -- cover