Data Zone
The site was identified as important 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Northern Bobwhite Colinus virginianus | NT | resident | 2020 | 48 individuals | B1a |
| American White Pelican Pelecanus erythrorhynchos | LC | winter | 2018 | 1,685 individuals | B3a |
| Eastern Meadowlark Sturnella magna | NT | resident | 2017 | 170 individuals | B1a |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2021) may differ.
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2021. The most recent assessment (2022) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2022 | favourable | high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | good | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Forest | good (> 90%) | good (> 90%) | favourable |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Agricultural expansion and intensification | happening now | some of area/population (10-49%) | moderate to rapid deterioration | high |
| Natural system modifications | happening now | some of area/population (10-49%) | moderate to rapid deterioration | high |
| Transportation and service corridors | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Energy production and mining | likely in long term (beyond 4 years) | small area/few individuals (<10%) | slow but significant deterioration | low |
| Residential and commercial development | happening now | small area/few individuals (<10%) | no or imperceptible deterioration | low |
| Biological resource use | happening now | small area/few individuals (<10%) | no or imperceptible deterioration | low |
| Pollution | happening now | small area/few individuals (<10%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Some of site covered (10-49%) | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | The conservation measures needed for the site are being comprehensively and effectively implemented | medium |
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 2004 | Sistema Lagunar Alvarado | Ramsar Site, Wetland of International Importance | 65 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Forest | Mangrove | 12 |
| Land use | % of IBA |
|---|---|
| agriculture | 74 |
| forestry | 12 |
| urban/industrial/transport | 1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Humedales de Alvarado (Mexico). Downloaded from
https://datazone.birdlife.org/site/factsheet/humedales-de-alvarado-iba-mexico on 23/11/2024.