Data Zone
The site was identified as internationally important for bird conservation in 2021 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Northern Bobwhite Colinus virginianus | NT | resident (2017) | 129 birds | B1a |
| Wood Stork Mycteria americana | LC | passage (2011) | 900 birds | A4, B3a |
| White Ibis Eudocimus albus | LC | breeding (2011) | 6,000 birds | A4, B3a |
| Reddish Egret Egretta rufescens | NT | resident (2015) | 829 birds | A4, B1a, B3a |
| Snowy Egret Egretta thula | LC | breeding (2011) | 10,500 birds | A4, B3a |
| Magnificent Frigatebird Fregata magnificens | LC | resident (2017) | 8,000 birds | A4, B3a |
| Neotropical Cormorant Nannopterum brasilianum | LC | breeding (2011) | 13,000 birds | B3a |
| Semipalmated Plover Charadrius semipalmatus | LC | winter (2010–2015) | 9,120 birds | A4, B3a |
| Snowy Plover Charadrius nivosus | NT | winter (2010) | 170 birds | B1a |
| Red Knot Calidris canutus | NT | winter (2018) | 532 birds | B1a, B3a |
| Semipalmated Sandpiper Calidris pusilla | NT | winter (2013) | 4,010 birds | B1a |
| Western Sandpiper Calidris mauri | LC | winter (2018) | 54,188 birds | A4, B3a |
| Short-billed Dowitcher Limnodromus griseus | VU | winter (2018) | 4,300 birds | A4, B3a |
| Willet Tringa semipalmata | LC | winter (2018) | 8,519 birds | A4, B3a |
| Greater Yellowlegs Tringa melanoleuca | NT | winter (2018) | 4,930 birds | A4, B3a |
| Black Skimmer Rynchops niger | LC | winter (2018) | 740 birds | B3a |
| Common Gull-billed Tern Gelochelidon nilotica | LC | winter (2011) | 80 birds | B3a |
| Black Tern Chlidonias niger | LC | passage (2011) | 20,000 birds | A4, B3a |
| Elegant Tern Thalasseus elegans | NT | winter (2018) | 30 birds | B1a |
| Royal Tern Thalasseus maximus | LC | winter (2013) | 200 birds | B3a |
| Turkey Vulture Cathartes aura | LC | passage (2011) | 104,850 birds | A4, B3a |
| Broad-winged Hawk Buteo platypterus | LC | passage (2011) | 65,330 birds | A4, B3a |
| Swainson's Hawk Buteo swainsoni | LC | passage (2011) | 75,920 birds | A4, B3a |
| Lilac-crowned Amazon Amazona finschi | EN | resident (2018) | 23 birds | A1 |
| Orange-fronted Parakeet Eupsittula canicularis | VU | resident (2019) | 373 birds | A1 |
| Cinnamon-tailed Sparrow Peucaea sumichrasti | NT | resident (2020) | 221 birds | B1a |
| Eastern Meadowlark Sturnella magna | NT | resident (2020) | 152 birds | B1a |
| Rose-bellied Bunting Passerina rositae | NT | resident (2016) | 94 birds | B1a |
| A4iv Species group - soaring birds/cranes | n/a | winter (2011) | 247,000 birds | B3c |
| A4iii Species group - waterbirds | n/a | winter (2018) | 73,209 birds | B3b |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2021. The most recent assessment (2013) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2013 | not assessed | very high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | unknown | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Energy production and mining | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Agricultural expansion and intensification | likely in short term (<4 years) | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | high |
| Transportation and service corridors | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of area covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | very low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1995 | La Sepultura | Reserva de la Biosfera (Ia) | 2 |
| 2002 | Playa de Puerto Arista | Santuario (II) | <1 |
| 2006 | La Sepultura | UNESCO-MAB Biosphere Reserve (UA) | 2 |
| 2007 | El Bejucal y la Chichihua | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2010 | El Cordón del Retén | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2010 | (Parcela) 70 Z-1 P1-1 (Ejido Chivela) | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2012 | Área de Uso Común del Núcleo Agrario El Barrio de La Soledad | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2012 | Parcela N° 349 Z-l P1/1 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2012 | San José de Los Amates | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2014 | Parcela No 221 Z-1 P1/1 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2014 | Parcela No 262 Z-1 P1/1 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2014 | Parcela No 22 Z-1 P1/1 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2014 | Parcela No 93 Z-1 P1/1 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2015 | Los Naranjos | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2015 | El Diamante | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2016 | La Herradura | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| 2017 | Zona de Uso Común 1 y 2 | Área Destinada Voluntariamente a la Conservación (VI) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | 40 | Gallery & riparian; Mangrove; Montane broadleaf evergreen; Palm forest; Pine; Pine-oak; Temperate deciduous; Tropical deciduous; Tropical lowland evergreen; Tropical semi-deciduous |
| Grassland | 7 | Second-growth & grazed |
| Savanna | 5 | |
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) |
| Land use | % of IBA |
|---|---|
| agriculture | 31 |
| urban/industrial/transport | 1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Istmo de Tehuantepec - Mar Muerto (Mexico). Downloaded from
https://datazone.birdlife.org/site/factsheet/istmo-de-tehuantepec--mar-muerto-iba-mexico on 23/12/2024.