California Condor (Gymnogyps californianus)

2020 ◽  
Author(s):  
Myra Finkelstein ◽  
Zeka Kuspa ◽  
Noel F. Snyder ◽  
N. John Schmitt
2015 ◽  
Author(s):  
Myra Finkelstein ◽  
Zeka Kuspa ◽  
Noel F. Snyder ◽  
N. John Schmitt

2002 ◽  
Author(s):  
Noel F. Snyder ◽  
N. John Schmitt

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Andreína Pacheco ◽  
Chris N. Parish ◽  
Timothy J. Hauck ◽  
Roberto F. Aguilar ◽  
Ananias A. Escalante

Abstract The endangered California Condor (Gymnogyps californianus) is the largest New World Vulture in North America. Despite recovery program success in saving the species from extinction, condors remain compromised by lead poisoning and limited genetic diversity. The latter makes this species especially vulnerable to infectious diseases. Thus, taking advantage of the program of blood lead testing in Arizona, condor blood samples from 2008 to 2018 were screened for haemosporidian parasites using a nested polymerase chain reaction (PCR) protocol that targets the parasite mitochondrial cytochrome b gene. Plasmodium homopolare (Family Plasmodiidae, Order Haemosporida, Phylum Apicomplexa), was detected in condors captured in 2014 and 2017. This is the first report of a haemosporidian species infecting California Condors, and the first evidence of P. homopolare circulating in the Condor population from Arizona. Although no evidence of pathogenicity of P. homopolare in Condors was found, this study showed that the California Condors from Arizona are exposed to haemosporidian parasites that likely are spilling over from other local bird species. Thus, active surveillance should be an essential part of conservation efforts to mitigate the impact of infectious diseases, an increasingly recognized cause of global wildlife extinctions worldwide, particularly in avian populations considered vulnerable or endangered.


2015 ◽  
Author(s):  
Myra Finkelstein ◽  
Zeka Kuspa ◽  
Noel F. Snyder ◽  
N. John Schmitt

1987 ◽  
Vol 28 (3) ◽  
pp. 415-426 ◽  
Author(s):  
David W. Steadman ◽  
Norton G. Miller

AbstractA humerus, coracoid, and pedal phalanx of the California Condor, Gymnogyps californianus, were recovered from the Hiscock Site in western New York, in an inorganic stratum containing wood that is 11,000 radiocarbon years old. Associated vertebrates include mastodont, wapiti, and caribou. Pollen and plant macrofossils from the sediments indicate a spruce-jack pine woodland and a local, herb-dominated wetland community. Historic records (all from western North America) and previous late Pleistocene fossils of the California Condor are associated mainly with warm-temperate climates and floras. The New York fossils show that this bird was able to live in a colder climate and in a boreal, coniferous setting at a time when appropriate food (large mammal carrion) was available. The California Condor, which survives only in captivity, has suffered a greater reduction in geographical range than previously suspected. Much of this reduction in range probably occurred ca. 11,000 yr B.P. when the extinction many North American large mammals resulted in severely reduced availability of food for the California Condor and other large scavenging birds.


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