Ecology and Conservation of the Cactus Ferruginous Pygmy-owl in Arizona, Issue 43
U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2000 - Birds - 68 pages
This report is the result of a cooperative effort by the Rocky Mountain Research Station and the USDA Forest Service Region 3, with participation by the Arizona Game and Fish Department and the Bureau of Land Management. It assesses the state of knowledge related to the conservation status of the cactus ferruginous pygmy-owl in Arizona. The population decline of this owl has been attributed to the loss of riparian areas before and after the turn of the 20th century. Currently, the cactus ferruginous pygmy-owl is chiefly found in southern Arizona in xeroriparian vegetation and wellstructured upland desertscrub. The primary threat to the remaining pygmy-owl population appears to be continued habitat loss due to residential development. Important information gaps exist and prevent a full understanding of the current population status of the owl and its conservation needs.
What people are saying - Write a review
We haven't found any reviews in the usual places.
A Historical Perspective on the Population Decline
The Status of the Cactus Ferruginous PygmyOwl in Arizona
3 other sections not shown
Other editions - View all
Abbate Altar Valley American Birds Arizona Game avian Bendire Biology breeding Breninger 1898 cactus ferruginous pygmy cactus ferruginous pygmy-owl call point Canyon cavities Chapter Condor Corman Coronado National Forest cottonwood density desert desertscrub detected eastern screech owls ecology endangered ferruginous pygmy-owl Glaucidium Fish and Wildlife Fish Department flycatcher Forest Service Game and Fish Gila River Johnson Kenedy counties located lower San Pedro mesquite bosques Mexico Meyer de Schauensee Millsap nest boxes Oberholser 1974 Organ Pipe Cactus Phoenix Pipe Cactus National population decline PR PREF prey Proudfoot 1996 Proudfoot and Beasom Proudfoot unpubl pygmy-owl Glaucidium brasilianum pygmy-owl in Arizona recorded Richardson unpubl riparian riparian areas riparian habitat saguaros Salt River San Pedro River Santa Cruz River Sonora species survey effort survey protocol Tech Tellman Texas A&M University tion trees U.S. Department U.S. Fish understory University of Arizona V4 section Verde River Wildlife Service willow