Diversidad de aves en la subcuenca del río Cupatitzio, Michoacán, México

Abstract

Este trabajo actualiza y resume el conocimiento de la diversidad de aves de la subcuenca del río Cupatitzio en Michoacán, México. Recopilamos información de 8,967 registros con la que elaboramos una lista de 301 especies de 52 familias de aves, que representan el 53.7% de las especies y el 68.4% de las familias conocidas para el estado de Michoacán. En esta subcuenca se ha registrado casi el 70% de las especies de aves mexicanas endémicas registradas para la entidad. La mayoría de las especies corresponde a las residentes permanentes (221), le siguen las visitantes de invierno (75), las residentes de verano (3), y dos registros accidentales. Identificamos 87 especies prioritarias que tienen alguna categoría de endemismo y que se enlistan en la Norma Oficial Mexicana (NOM-059-SEMARNAT-2010). Adicionamos nuevos registros para el estado y la extensión en sus límites de distribución para ocho especies: la garceta rojiza (Egretta rufescens), la paloma morada (Patagioenas flavirostris), el tapacamino prío (Nyctiphrynus mcleodii), el bienparado norteño (Nyctibius jamaicensis), la cotorra serrana occidental (Rhynchopsitta pachyrryncha), el chipe gusanero (Helmitheros vermivorum), el chipe rabadilla rufa (Oreothlypis luciae) y el chipe de roca (Basileuterus lachrymosus). La información sobre la biodiversidad presente en el área ha sido la base para generar propuestas con visión integral y multidisciplinaria para intentar solucionar la problemática ambiental y social de la subcuenca.

Unusual Bird Reports from the Trans-Pecos District of Chihuahua, Mexico, Including Five New Additions to the State of Chihuahua

“…The avifaunal records reported in this study from the Chihuahuan Desert and the Sierra Madre Occidental biogeographic provinces coincide in part with the species occurrences published for neighboring states of Sonora (Russell and Monson 1998, Villaseñor-Gómez et al 2010), Coahuila (Gómez de Silva 2003a, Ruvalcaba-Ortega and González-Rojas 2009, Miller et al 2018, Texas Zimmer 1998, Lockwood andFreeman 2014), and New Mexico (Williams 2022). The information presented in this paper (new distributional data and pub-lished literature) can help elucidate unusual biogeographical patterns contrasting with historical accounts of Chihuahua's avifauna (e.g., Howell and Webb 1995).…”

“…Two adults were observed and photographed at Vado de Meoqui on 24 February 2019 (J. Robles; eBird, https://ebird.org/averaves/checklist/ S53180385). Although it had not been historically recorded in Sonora (Russell and Monson 1998), there are now several records in that state (municipality of Puerto Peñasco; Villaseñor-Gómez et al 2010). These records suggest an ongoing expansion of the species' winter range in inland Mexico (Gómez de Silva 2003b, 2004a, 2005b, Gómez de Silva et al 2010.…”

“…45 on 28 April 1972 (DMNH 25221;Hubbard and Crossin 1974) and an individual in the municipality of Batopilas on 27 January 1999 (R. Cannings; eBird, https://ebird.org/ checklist/S2229596). The species was considered hypothetical in Sonora by Russell and Monson (1998), but there are now 2 spring records and 1 winter record there (Villaseñor-Gómez et al 2010). The species is a rare migrant in the western portion of Texas Zimmer 1998, Lockwood andFreeman 2014) Erickson et al 2013).…”

“…The species was not mapped in interior western Mexico by Howell and Webb (1995), but there are at least 3 previous Chihuahua records: singles observed along the Rio San Pedro, municipality of Janos, on 5 January 2003 (Dieni et al 2003, Gómez de Silva 2003b, in the municipality of Cusihuiriachi on 17 May 2014 (E. Bergen; eBird, https:// ebird.org/checklist/S18432588), and at Rancho Tres Papalotes, municipality of Janos, on 26 April 2018 (J. Streit; eBird, https://ebird.org/check list/S44978643). The Gray Catbird was mentioned as hypothetical in Sonora by Russell and Monson (1998), but it is now known as an accidental transient in that state (Villaseñor-Gómez et al 2010). It is a very rare to casual winter visitor in western Texas Zimmer 1998, Lockwood andFreeman 2014).…”

Population trends and viability of the critically endangered Cozumel Curassow: a 25-year perspective

“…Despite the importance of long-term systematic population monitoring of endangered bird species, few assessments are long-term, representative, and comparable (Villaseñor-Gómez and Santana 2003). Therefore, the relevance of monitoring the Cozumel Curassow through three evaluations over 25 years makes this study unique and could be fundamental in the development of conservation proposals for other cracids or Neotropical species.…”