Loma Linda University TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works Loma Linda University Electronic Theses, Dissertations & Projects 8-1993 Status, Distribution and Biogeography of the Birds of Paraguay Floyd E. Hayes Follow this and additional works at: https://scholarsrepository.llu.edu/etd Part of the Biology Commons Recommended Citation Hayes, Floyd E., "Status, Distribution and Biogeography of the Birds of Paraguay" (1993). Loma Linda University Electronic Theses, Dissertations & Projects. 570. https://scholarsrepository.llu.edu/etd/570 This Dissertation is brought to you for free and open access by TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. It has been accepted for inclusion in Loma Linda University Electronic Theses, Dissertations & Projects by an authorized administrator of TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. For more information, please contact
[email protected]. ABSTRACT STATUS, DISTRIBUTION AND BIOGEOGRAPHY OF THE BIRDS OF PARAGUAY by Floyd E. Hayes The Paraguay River divides the Republic of Paraguay into two distinct regions: the Chaco to the west and the Orient to the east. The relatively flat Chaco is characterized by thorn scrub forests in the west, subhumid forests in the northeast and palm savannas in the southeast. The topographically diverse Orient is characterized by campos cerrados in the northeast, savannas in the west and southwest, and humid forests elsewhere. Paraguay's climate is subtropical, with rainfall increasing roughly fourfold from west to east. Previous studies of the birds of Paraguay have focused primarily on the distribution and taxonomy of resident species. There have been no thorough reviews of the country's avifauna since 1940.