Distribution and abundance of the Yuma clapper rail (Rallus longirostris yumanensis) in the Colorado River delta, México

Osvel Hinojosa-Huerta, Stephen DeStefano, William W Shaw

Research output: Contribution to journalArticle

24 Scopus citations


We estimated the abundance of Yuma clapper rails in the Ciénega de Santa Clara and determined the distribution of the subspecies in the Colorado River delta region in México. The maximum estimate of abundance was 6629 individuals (95% C.I. 4859-8399), assuming a response rate by rails to taped calls of 60%. Rails were widely distributed in the delta, occupying almost all marshlands dominated by cattail. As this is an endangered subspecies shared by México and the U.S., the conservation of the delta ecosystem should be the interest of both countries, especially when water management decisions upstream in the U.S. have an impact over natural areas downstream in México.

Original languageEnglish (US)
Pages (from-to)171-182
Number of pages12
JournalJournal of Arid Environments
Issue number1
Publication statusPublished - 2001



  • Call-response surveys
  • Ciénega de Santa Clara
  • Colorado River delta
  • Endangered species
  • Marsh wetlands
  • Marshbirds
  • Rallus longirostris yumanensis
  • Yuma clapper rail

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Ecology

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