Industrial Development Effects on the Ecology of a Pacific Mexican Estuary

Ibarra-Obando, Silvia E.; Escofet, Anamaría

doi:10.1017/s0376892900011498

Cited by 25 publications

(30 citation statements)

References 10 publications

(8 reference statements)

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“…Para una síntesis de las características oceanográficasy ecológicas, así como desarrollo histórico de su uso, ver Ibarra-Obando y Escofet (1987).…”

Section: El Estero Deunclassified

“…El desarrollo industrial, iniciado en 1984, fue evaluado por Ibarra-Obando y Escofet (1987), en una interpretaci6n que involucró, entre otra información existente, parte de los datos sobre aves que integran esta contribución.…”

Section: El Estero Deunclassified

“…El cuerpo de agua principal posiblemente retiene aún el patrón de circulación original, aunque el dique ha intervenido ligeramente el canal central. El desvío de dicho canal, requerido para dar lugar al resto del proyecto, es la amenaza latente que pende sobre la integridad del estero, dada la dependencia funcional que existe entre los diferentes biotipos y el régimen de humectación (Ibarra-Obando y Escofet, 1987).…”

Section: El Estero Deunclassified

“…Escofet A. et al -El Estero of the oceanographic and ecological characteristics as well as the historie development of its use, see Ibarra-Obando and Escofet (1987).…”

Section: El Estero Dementioning

confidence: 99%

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The Punta Banda Estuary (Baja California, Mexico) As An Avifauna Habitat

Escofet¹,

Salinas²,

Arredondo³

1988

Cienc. Mar.

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RESUMENEntre septiembre de 1984 y agosto de 1985 se realizaron mensualmente observaciones cualitativas de las aves presentes en el Estero de Punta Banda (Baja California, México), en siete habitats diferentes y cinco sitios de observación. Se registraron 49 especies marinas y 20 terrestres, que se agrupan en seis y ocho grupos funcionales respectivamente. Considerando los habitats, el mayor número de especies (30) se registró en la marisma baja y los planos fangosos, siguiendo la marisma alta (27) dunas (23), superficie del agua dentro del dique construído por la industria petrolera (22) marisma media (21) y superficie del agua fuera del dique (18). Considerando los sitios de observación, el mayor número de especies se registró en la cabeza (44), siguiendo las localidades intermedias (40, 33 y 18) y la boca (12). Los elencos de especies en cada habitat y sitio de observación mostraron poca o nula similitud entre sl. Durante otoño-invierno se observó mayor número de especies que en primavera-verano, con similitud sólo dentro de los elencos de mayo-julio y los de marzo-abril. Se registraron cuatro especies consideradas en peligro de extinción (Rallus longirosttis Ievipes, Stema antillatum browni, Pelecanus ticidentalis califomicus y Passerculus sandwichensis beldingi). La riqueza de especies de aves en el Estero de Punta Banda está estrechamente ligada a la variedad de habitats, y a la especificidad mostrada por las aves en el uso de los mismos. El 60% de las especiesutilizan sólo uno o dos habitats. La Riqueza Beta mostró que, en promedio, se incorporan siete especies por cada nuevo habitat considerado.La Diversidad Regional superó, con un promedio de 44 especies, a la Diversidad Local. Las consecuencias previsibles de cualquier reducción de la diversidad de habitats deben ser consideradas prioritariamente en los planes de desarollo de la zona. Considering the habitats, the largest number of species (30) was recorded in lower marsh and mud-flats, followed by high marsh (27), dunes (23) water surface within the dike (22) mid-marsh (21), and water surface outside the dike (18). Considering the observation sites, the largest number of species was recorded at the head of the estuary (44), followedby the intermediate sites (40, 33 and 18), and in the mouth (12). Little or no similarity was found between groups of species recorded in each habitat and observation site. The number of species was higher in fall and winter than during spring and summer; only the May-July and March-April assemblages were similar. Four of the recorded species are considered in danger of extinction (Ralks longirostris levipes, Stema antilkuum browni, Pelecanus occidentalis califomicus, and Passerculus sandwichensis beldingi). Bird species diversity in the Punta Banda Estuary is tightly linked to habitat diversity as well as to habitat specificity shown by birds. 60% of the species were recorded in only one or two types of habitats. Beta Richness showed that seven species are added to the biota when each different habitat is considered. Region...

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“…Para una síntesis de las características oceanográficasy ecológicas, así como desarrollo histórico de su uso, ver Ibarra-Obando y Escofet (1987).…”

Section: El Estero Deunclassified

“…Escofet A. et al -El Estero of the oceanographic and ecological characteristics as well as the historie development of its use, see Ibarra-Obando and Escofet (1987).…”

Section: El Estero Dementioning

confidence: 99%

See 2 more Smart Citations

The Punta Banda Estuary (Baja California, Mexico) As An Avifauna Habitat

Escofet¹,

Salinas²,

Arredondo³

1988

Cienc. Mar.

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“…Coastal lagoons of the Southern California Current System, especially Estero de Punta Banda, meet the very shallow low-runoff criteria during non-El Niño years (Galindo-Bect et al 1999). This lagoon is relatively unmodified and represents an important habitat for fishes and birds (Ibarra-Obando & Escofet 1987).…”

Section: Introductionmentioning

confidence: 99%

Annual phytoplankton production in a coastal lagoon of the southern California Current System

Montes-Hugo¹,

Alvarez-Borrego²,

Gaxiola‐Castro³

2004

Mar. Ecol. Prog. Ser.

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The effect of tidal exclusion on salt marsh vegetation in Baja California, M�xico

Ibarra-Obando

Poumian-Tapia

1991

Wetlands Ecol Manage

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Changes in salt marsh vegetation were analyzed over a two-year period (November 1984-November 1986 following the construction of a dike in the southwest corner of Punta Banda Estuary, Baja California, Mrxico.Changes included: increased interstitial soil salinity, reduced soil moisture, increased mortality of Spartina foliosa and decreased middle marsh species diversity due to the elimination of annual and short-lived species.The sea-side edge of the middle marsh shifted its boundary to a lower elevation. By the end of 1986, dominant species were Salicornia virginica, Batis maritima and Frankenia grandifolia. By October 1988, only a few patches of S. foliosa persisted at the water edge, and it appeared that the community was not yet stable. The potential future of the estuary is evaluated.

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Industrial Development Effects on the Ecology of a Pacific Mexican Estuary

Cited by 25 publications

References 10 publications

The Punta Banda Estuary (Baja California, Mexico) As An Avifauna Habitat

The Punta Banda Estuary (Baja California, Mexico) As An Avifauna Habitat

Annual phytoplankton production in a coastal lagoon of the southern California Current System

The effect of tidal exclusion on salt marsh vegetation in Baja California, M�xico

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