scholarly journals Recent bald eagle breeding range expansion in Manitoba

Blue Jay ◽  
2010 ◽  
Vol 68 (1) ◽  
Author(s):  
Rudolf Koes
Keyword(s):  
Range Expansion ◽  
Bald Eagle ◽  
Breeding Range

Breeding Range Expansion of Taiga Merlins (Falco columbarius columbarius) in Wisconsin Reflects Continental Changes

2014 ◽  
Vol 48 (2) ◽  
pp. 182-188 ◽  
Author(s):  
Jenna A. Cava ◽  
Andy D. Richardson ◽  
Eugene A. Jacobs ◽  
Robert N. Rosenfield
Keyword(s):  
Range Expansion ◽  
Breeding Range

scholarly journals Territorial Behavior of Short-eared Owls, Asio flammeus, at more than 1000 km North of their Current Breeding Range in Northeastern Canada: Evidence of Range Expansion?

2010 ◽  
Vol 124 (1) ◽  
pp. 58
Author(s):  
Jean-François Therrien
Keyword(s):  
Climate Change ◽  
Range Expansion ◽  
Territorial Behavior ◽  
The Arctic ◽  
Eastern Canada ◽  
Breeding Range ◽  
North Eastern ◽  
Asio Flammeus

A pair of Short-eared Owls was observed throughout the summer of 2008 showing territorial behavior more than 1000 km north of their known breeding range in north-eastern Canada. These observations might be related to high lemming densities and/or climate change occurring in the Arctic.

Breeding Range Expansion of Bell's Vireo in Grand Canyon, Arizona

The Condor ◽  
1983 ◽  
Vol 85 (4) ◽  
pp. 499 ◽  
Author(s):  
Bryan T. Brown ◽  
Steven W. Carothers ◽  
R. Roy Johnson
Keyword(s):  
Range Expansion ◽  
Grand Canyon ◽  
Breeding Range

BREEDING RANGE EXPANSION BY CAVE SWALLOWS (PETROCHELIDON FULVA) IN TEXAS

2006 ◽  
Vol 51 (2) ◽  
pp. 203-209 ◽  
Author(s):  
Karl L. Kosciuch ◽  
Cheryl G. Ormston ◽  
Keith A. Arnold
Keyword(s):  
Range Expansion ◽  
Breeding Range ◽  
Petrochelidon Fulva

scholarly journals Successful Long-Distance Breeding Range Expansion of a Top Marine Predator

2021 ◽  
Vol 9 ◽  
Author(s):  
Robert William Henry ◽  
Scott A. Shaffer ◽  
Michelle Antolos ◽  
María Félix-Lizárraga ◽  
David G. Foley ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Range Expansion ◽  
Large Scale ◽  
Remote Sensing Data ◽  
Habitat Characteristics ◽  
Eastern Pacific ◽  
Boundary Current ◽  
Central Pacific ◽  
Long Distance ◽  
Breeding Range

Little is known about the effects of large-scale breeding range expansions on the ecology of top marine predators. We examined the effects of a recent range expansion on the breeding and foraging ecology of Laysan albatrosses (Phoebastria immutabilis). Laysan albatrosses expanded from historical breeding colonies in the Central Pacific Ocean to the Eastern Pacific Ocean around central Baja California, Mexico, leading to a 4,000-km shift from colonies located adjacent to the productive transition zone in the Central Pacific to colonies embedded within the eastern boundary current upwelling system of the Eastern Pacific California Current. We use electronic tagging and remote sensing data to examine the consequences of this range expansion on at-sea distribution, habitat use, foraging habitat characteristics, and foraging behavior at sea by comparing birds from historic and nascent colonies. We found the expansion resulted in distinct at-sea segregation and differential access to novel oceanographic habitats. Birds from the new Eastern Pacific colony on Guadalupe Island, Mexico have reduced ranges, foraging trip lengths and durations, and spend more time on the water compared to birds breeding in the Central Pacific on Tern Island, United States. Impacts of the range expansion to the post-breeding season were less pronounced where birds maintained some at-sea segregation but utilized similar habitat and environmental variables. These differences have likely benefited the Eastern Pacific colony which has significantly greater reproductive output and population growth rates. Laysan albatrosses have the plasticity to adapt to distinctly different oceanographic habitats and also provide insight on the potential consequences of range shifts to marine organisms.

scholarly journals Breeding range expansion of barnacle and brent geese in the Russian European North

1992 ◽  
Vol 11 (2) ◽  
pp. 41-46 ◽  
Author(s):  
A. V. Filchagov ◽  
V. V. Leonovich
Keyword(s):  
Range Expansion ◽  
Breeding Range ◽  
European North

Recent breeding range expansion of the endangered Snail Kite (Rostrhamus sociabilis) in Florida

2020 ◽  
Vol 132 (1) ◽  
pp. 183
Author(s):  
Caroline L. Poli ◽  
Sarah J. Dudek ◽  
Brian M. Jeffrey ◽  
Ellen P. Robertson ◽  
Robert J. Fletcher
Keyword(s):  
Range Expansion ◽  
Snail Kite ◽  
Breeding Range ◽  
Rostrhamus Sociabilis
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