Ensenada de La Paz

 
Ensenada de La Paz

Description

Ensenada de la Paz is located on the southeast coast of the Baja California peninsula. The site lies on federal government lands. For shorebirds
migrating throughout the peninsula, Ensenada de La Paz is the last feeding ground in the southbound migration and the first in the northbound migration. In general there is little surf, thus making it possible for sediment to accumulate in the southern section of the inlet and form a flood plain where shorebirds feed. The southwest portion of the Ensenada de La Paz, known as Chametla-El Centenario salt marsh, is a flood plain strongly influenced by tides, with more than 1000 linear meters of wetlands exposed during spring tides, which makes the prime feeding site for shorebirds. The tides in this region are mixed semidiurnal; the prevailing winds are northeasterly from October to March and southeasterly from April to September.

More than 20,000 shorebirds use the Chametla-El Centenario portion of the site during the year, the Western Sandpiper (Calidris mauri) being the most abundant. In addition, more than 1% of the biogeographic populations of five species can be found here: Snowy Plover (Charadrius alexandrinus, 1.1%), Wilson’s Plover (Charadrius wilsonia, 10.6%), Semipalmated Plover (Charadrius semipalmatus, 1.8%), Whimbrel (Numenius phaeopus, 1.0%), and Marbled Godwit (Limosa fedoa, 1.1%). Also common, although in lesser numbers, are: the Willet (Catoptrophorus semipalmatus), Whimbrel (Numenius phaeopus), Least Sandpiper (Calidris minutilla), and dowitcher (Limnodromus spp.).

Ensenada de La Paz, which includes Chametla-El Centenario, is Mexican Important Bird Area (IBA) 93, placed category G-1 (global). This is the highest category that can be assigned and is due to the presence of nests of the California Least Tern (Sterna antillarum browni), a subspecies in danger of extinction.

On the other hand, financing is currently being sought for special projects dealing with the protection of nature in general and shorebirds in particular.
Site Facts

Country, State,
Province/Region:
Baja California Sur,
Mexico


Relative Location:
The inlet is on the southeast coast of the Baja California peninsula, opening onto the Gulf of California. The city of La Paz is adjacent to the WHSRN site.


Latitude/Longitude:
24º 06' 0.8" N, 110º 25' 24"


Category:
Regional site


Basis for Designation:
More than 20,000 shorebirds use the site every year. More than 1% of the biogeographic populations of the Snowy Plover (Charadrius alexandrinus), Semipalmated Plover (Charadrius semipalmatus), Whimbrel (Numenius phaeopus), and Marbled Godwit (Limosa fedoa) have been recorded there.


Size:
194 hectares/479 acres

Joined:
March, 2006


Site Owner/Steward:

Federal Government, ejidos (a system of communal land tenure in Mexico).


Site Partners:

Secretaria de Medio Ambiente y Recursos Naturales (SEMARNAT), the Universidad Autónoma de Baja California Sur


Human Population within 100 km

180,000 inhabitants


Contact:

Roberto Carmona
beauty@uabcs.mx,

Adriana del Moral Romero
acdmr@uabcs.mx