scholarly journals Sublethal Lead Exposure Alters Movement Behavior in Free-Ranging Golden Eagles

2017 ◽  
Vol 51 (10) ◽  
pp. 5729-5736 ◽  
Author(s):  
Frauke Ecke ◽  
Navinder J. Singh ◽  
Jon M. Arnemo ◽  
Anders Bignert ◽  
Björn Helander ◽  
...  
2010 ◽  
Vol 46 (2) ◽  
pp. 532-540 ◽  
Author(s):  
Jennifer Marie McLelland ◽  
Clio Reid ◽  
Kate McInnes ◽  
Wendi D. Roe ◽  
Brett D. Gartrell
Keyword(s):  

Author(s):  
J. Lizardo Cruz-Romo ◽  
Martin Sánchez-Vilchis ◽  
Víctor Sánchez-Cordero ◽  
Robert K. Murphy ◽  
Ismael Cruz-Molina ◽  
...  

ABSTRACT The southern limit of the Golden Eagle's (Aquila chrysaetos) breeding range in North America is Mexico, where the eagle is the national symbol yet designated as a threatened, high priority species for conservation action. Movement information needed for conserving Mexico's Golden Eagles is sparse; knowledge of dispersal from natal areas is essential to understand the eagle's ecology and help provide for its management. Using satellite telemetry data, we analyzed movements of three males and one female from central Mexico during their first year of life; we documented (1) timing and distance of initial dispersal movements, (2) total distance traveled and maximum distance from natal site by month of age following fledging, and (3) size of areas (based on 95% adaptive local convex hulls) across which eagles ranged following initial dispersal. Individual eagles dispersed from their natal areas between mid-September and mid-November, at 6–8 mo of age. Monthly total distance traveled by males reached approximately 350–1350 km at 8–11 mo; the female's peak monthly travel was 3000 km, at age 7 mo. Monthly proximity to natal sites by individuals at ages 8–12 mo was relatively constant, averaging 17.9 km (SD = 5.7) to 129.1 km (SD = 11.3). After dispersal, the monthly ranging areas overall increased during the first year of life for all eagles, especially the female, due mainly to multiple long-distance excursions. Our data suggest that movement behavior of juvenile Golden Eagles from Mexico is mostly similar to that of conspecifics from nonmigratory populations elsewhere. Our study may help serve as a foundation for future work to better understand movement dynamics and resource selection by Mexico's Golden Eagles.


2021 ◽  
Vol 57 (4) ◽  
Author(s):  
Janetta Kelly ◽  
Michelle Carstensen ◽  
Erik C. Hildebrand ◽  
Lindsey Long

Ecotoxicology ◽  
2015 ◽  
Vol 24 (4) ◽  
pp. 735-745 ◽  
Author(s):  
Hebe Ferreyra ◽  
Pablo M. Beldomenico ◽  
Krysten Marchese ◽  
Marcelo Romano ◽  
Andrea Caselli ◽  
...  

Author(s):  
Robert Domenech ◽  
Adam Shreading ◽  
Philip Ramsey ◽  
Michael McTee
Keyword(s):  

PLoS ONE ◽  
2011 ◽  
Vol 6 (4) ◽  
pp. e17656 ◽  
Author(s):  
Terra R. Kelly ◽  
Peter H. Bloom ◽  
Steve G. Torres ◽  
Yvette Z. Hernandez ◽  
Robert H. Poppenga ◽  
...  

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