Estructura de la comunidad y asociación de las aves acuáticas con la heterogeneidad espacial del complejo lagunar Bahía Magdalena-Almejas, Baja California Sur, México

Zárate-Ovando, Bulmara; Palacios, Eduardo; Reyes-Bonilla, Héctor
March 2008
Revista de Biología Tropical;mar2008, Vol. 56 Issue 1, p371
Academic Journal
To test the hypothesis that spatial heterogeneity determines waterbird diversity in a coastal wetland, we compared waterbird density, diversity, and species composition among various habitats and landscapes units in Bahía Magdalena-Almejas, Baja California Sur, Mexico. Based on diversity patterns and bird distribution, we assessed the effect of coastal development on the waterbird community structure. To gather information on habitat features and waterbird populations we conducted waterbird censuses in 329 habitat segments along the internal coastline of the study area, from February 2002 to February 2003. We performed non-parametric analyses to test the null hypothesis of no diference on waterbird density, and diversity among landscape units and seasons. The species composition was evaluated using ordination techniques. Waterbird density was higher in winter and autumn in the three lagoons of the study area, particularly in the insular coast, sandy beach and dunes; it was higher in the few segments of antropic sustrate. Diversity was significantly higher in mangrove habitat along the peninsular coast, and in mangrove-dunes association on the insular coast. Although modification of coastal natural habitat and boat transit disturbance had no influence on waterbird density or diversity, the highest richness of waterbirds occurred in well preserved areas. Species composition analysis showed differences between Santo Domingo Channel and Magdalena Bay. Pelagic and mangrove habitat had a species composition difference higher than those associations in other habitats. Such differences in species assemblages by habitat and landscape units suggest that communities are structured according to the range of available natural resources in structurally complex habitats, and that dominant piscivorous waterbird species were favored in this community.


Related Articles

  • Temporal changes to the abundance and community structure of migratory waterbirds in Santragachhi Lake, West Bengal, and their relationship with water hyacinth cover. Khan, T. N. // Current Science (00113891);12/10/2010, Vol. 99 Issue 11, p1570 

    A study carried out during 1998-2009 showed that migratory waterbirds of Santragachhi wetland, in the vicinity of Kolkata, have declined by more than 55% over a 12-year period, and three important species have abandoned the wetland. These changes were associated with the reduction of the surface...

  • WET AND WONDERFUL. Gordon, David George // National Geographic World;Jun2000, Issue 298, p5 

    Reports that a variety of waterbirds are flocking to Prespa Park in southeastern Europe. What caused the loss of some wetlands; Background information on the park.

  • Size-related movements of Rhabdosargus sarba in three different environments and their influence on estimates of von Bertalanffy growth parameters. Hesp, S. A.; Hall, N. G.; Potter, I. C. // Marine Biology;Mar2004, Vol. 144 Issue 3, p449 

    In temperate, marine waters on the lower west coast of Australia, Rhabdosargus sarba settles in unvegetated nearshore areas and then, as it increases in size, moves progressively to nearby seagrass beds and then to exposed unvegetated nearshore areas and finally to areas around reefs where...

  • Especies nuevas del género Gibberula (Mollusca: Cystiscidae) de Cuba y Venezuela. Espinosa, José; Ortea, Jesús; Caballer, Manuel // Revista Mexicana de Biodiversidad;2011, Vol. 82 Issue 1, p85 

    Three new species of marine molluscs are described. Gibberula palmasola new species, collected in vegetation associated with rocks surrounded by soft sediments in a coastal lagoon surrounded by mangroves in Guanahacabibes Peninsula, Cuba, and characterized by a black head and typical...

  • Alfords Point Bridge to ease congestion.  // Building Economist;Sep2008, p4 

    The article announces the completion and opening of the Alfords Point Bridge, two parallel bridges that cross the Georges River between Alfords Point and Padstow Heights in Sydney, New South Wales. The bridges were constructed to separate opposing moving traffic in order to ease traffic...

  • RELATIONSHIP BETWEEN MICROENVIRONMENT OF MANGROVE FORESTS AND EPIPHYTIC FERN SPECIES RICHNESS ALONG THE PAN YI RIVER, THAILAND. Hayasaka, D.; Kimura, N.; Fujiwara, K.; Thawatchai, W.; Nakamura, T. // Journal of Tropical Forest Science;Apr2012, Vol. 24 Issue 2, p265 

    To clarify the habitat dependency of epiphytic ferns in mangrove forests, we surveyed their species composition and habitat requirements along the Pan Yi River, Thailand. In a multiple regression analysis, the Shannon-Wiener diversity index of epiphytic ferns was most strongly related to the...

  • Mangroves Enhance Reef Fish Abundance at the Caribbean Regional Scale. Serafy, Joseph E.; Shideler, Geoffrey S.; Araújo, Rafael J.; Nagelkerken, Ivan // PLoS ONE;11/4/2015, Vol. 10 Issue 10, p1 

    Several studies conducted at the scale of islands, or small sections of continental coastlines, have suggested that mangrove habitats serve to enhance fish abundances on coral reefs, mainly by providing nursery grounds for several ontogenetically-migrating species. However, evidence of such...

  • Local Rehabilitation Effort Aims to Find Beauty Beneath the Blight. Glidden, Stephanie R. // San Diego Business Journal;4/21/2014, Vol. 35 Issue 16, p38 

    The article reports on the collaboration of three major community organizations for the rehabilitation of Bandar Salaam, an affordable-rental community, as well as the restoration of the natural habitat of the Auburn Creek area in Fox Canyon in San Diego, California.

  • Density of waterbirds in relation to habitats of Pichavaram mangroves, Southern India. Sandilyan, S.; Kathiresan, K. // Journal of Coastal Conservation (Springer Science & Business Med;Apr2015, Vol. 19 Issue 2, p131 

    Tropical mangroves are one of vital coastal systems which support migratory and resident waterbird species round the year. Globally the potential of mangrove habitats in relation to support waterbirds is poorly understood. We examined density of waterbirds in five different habitats: mudflats,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics