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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
Black Swift Cypseloides niger	VU	breeding	2021	32 individuals	A1
Sierra Madre Sparrow Xenospiza baileyi	EN	resident	2017	117 individuals	A1

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 (2013) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Residential and commercial development	likely in short term (within 4 years)	some of area/population (10-49%)	very rapid to severe deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	No management planning has taken place	Some limited conservation initiatives are in place	negligible

Year	Protected Area	Designation	% overlap with IBA
1917	Desierto de los Leones	Parque Nacional	1
1936	Insurgente Miguel Hidalgo y Costilla	Parque Nacional	1
1937	El Tepozteco	Parque Nacional	6
1938	Lomas de Padierna	Parque Nacional	<1
1939	Insurgente José María Morelos	Parque Nacional	1
1947	Lagunas de Zempoala	Parque Nacional	3
1947	Cumbres del Ajusco	Parque Nacional	<1
1980	Zempoala - La Bufa Otomí-Mexica	Parque Ecológico Turístico Rcreativo	14
1988	Corredor Biológico Chichinautzin	Área de Protección de Flora y Fauna	16
1989	Parque Ecológico de la Ciudad de México	Zona Sujeta a Conservación Ecológica	1
2006	San Nicolás Totolapan	Reserva Ecológica Comunitaria	2
2007	San Miguel Topilejo	Reserva Ecológica Comunitaria	6
2010	Milpa Alta	Área Comunitaria de Conservación Ecológica	5
2010	San Miguel Ajusco	Reserva Ecológica Comunitaria	1
2010	San Bernabe de Ocotepec	Reserva Ecológica Comunitaria	<1

Habitat1	Habitat detail	% of IBA
Forest	Montane broadleaf evergreen, Pine, Pine-oak, Tropical coniferous, Tropical deciduous	69

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	29
rangeland/pastureland	10
urban/industrial/transport	minor (<10)
forestry	-

Tenencia de la tierra: Ejidal y privada.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Sur del Valle de México (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/sur-del-valle-de-méxico-iba-mexico on 23/11/2024.