Changes in Trumpeter Swan (Cygnus buccinator) Activities from Winter to Spring in the Greater Yellowstone Area

1997 ◽  
Vol 138 (1) ◽  
pp. 208 ◽  
Author(s):  
John R. Squires ◽  
Stanley H. Anderson
Keyword(s):  
Cygnus Buccinator ◽  
Greater Yellowstone Area ◽  
Greater Yellowstone ◽  
Trumpeter Swan

scholarly journals Transmission of Brucellosis from Elk to Cattle and Bison, Greater Yellowstone Area, USA, 2002–2012

2013 ◽  
Vol 19 (12) ◽  
pp. 1992-1995 ◽  
Author(s):  
Jack C. Rhyan ◽  
Pauline Nol ◽  
Christine Quance ◽  
Arnold Gertonson ◽  
John Belfrage ◽  
...  
Keyword(s):  
Greater Yellowstone Area ◽  
Greater Yellowstone

scholarly journals Multistate occupancy modeling improves understanding of amphibian breeding dynamics in the Greater Yellowstone Area

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
William R. Gould ◽  
Andrew M. Ray ◽  
Larissa L. Bailey ◽  
David Thoma ◽  
Rob Daley ◽  
...  
Keyword(s):  
Occupancy Modeling ◽  
Greater Yellowstone Area ◽  
Greater Yellowstone

scholarly journals Phenotypic Dimensions of Reproductive Isolation Between Northern and Melissa Blue Butterflies in the Rocky Mountains

2011 ◽  
Vol 33 ◽  
pp. 101-105
Author(s):  
Zachariah Gompert
Keyword(s):  
Reproductive Isolation ◽  
Biological Diversity ◽  
Butterfly Species ◽  
General Importance ◽  
Greater Yellowstone Area ◽  
Single Character ◽  
Character Variation ◽  
Greater Yellowstone ◽  
Species Speciation

Biological diversity results from speciation, which generally involves the splitting of an ancestral species into descendant species due to adaptation to different niches or the evolution of reproductive incompatibilities (Coyne and Orr 2004). The diverse flora and fauna of the world, including the native inhabitants of the Greater Yellowstone Area (GYA), exist as a result of the speciation process. The central role speciation plays in generating biological diversity imbues importance to our understanding of this process. The general importance of a thorough understanding of speciation is amplified because of the current high rates of extinction on the planet. This is because a long term solution to the present extinction crisis will require maintaining the processes that create species (speciation) not simply preventing extinction. However, many central questions regarding speciation remain to be answered. One fundamental question in speciation research is whether diverging species are isolated (i.e., prevented from interbreeding) due to differences in one, a few, or many characters and whether each of these character differences results from different alleles at a few or many genes. For example, speciation and reproductive isolation might involve divergence along multiple phenotypic axes, such as mate preference, habitat use or preference, and phenology (the timing of life-cycle events). Alternatively, isolation could result from differentiation of a single character. I propose to address this question by assessing patterns of variation for a suite of characters across a hybrid zone between two butterfly species. This is possible because patterns of character variation across hybrids zones allow for inferences about reproductive isolation (Barton and Hewitt 1985).

scholarly journals Phenotypic Dimensions of Reproductive Isolation Between Northern and Melissa Blue Butterflies in the Rocky Mountains

2009 ◽  
Vol 32 ◽  
pp. 97-100
Author(s):  
Zachariah Gompert
Keyword(s):  
Reproductive Isolation ◽  
Biological Diversity ◽  
Butterfly Species ◽  
General Importance ◽  
Greater Yellowstone Area ◽  
Single Character ◽  
Character Variation ◽  
Greater Yellowstone ◽  
Species Speciation

Biological diversity results from speciation, which generally involves the splitting of an ancestral species into descendant species due to adaptation to different niches or the evolution of reproductive incompatibilities (Coyne and Orr 2004). The diverse flora and fauna of the world, including the native inhabitants of the Greater Yellowstone Area (GYA), exist as a result of the speciation process. The central role speciation plays in generating biological diversity imbues importance to our understanding of this process. The general importance of a thorough understanding of speciation is amplified because of the current high rates of extinction on the planet. This is because a long term solution to the present extinction crisis will require maintaining the processes that create species (speciation) not simply preventing extinction. However, many central questions regarding speciation remain to be answered. One fundamental question in speciation research is whether diverging species are isolated (i.e., prevented from interbreeding) due to differences in one, a few, or many characters and whether each of these character differences results from different alleles at a few or many genes. For example, speciation and reproductive isolation might involve divergence along multiple phenotypic axes, such as mate preference, habitat use or preference, and phenology (the timing of life-cycle events). Alternatively, isolation could result from differentiation of a single character. I propose to address this question by assessing patterns of variation for a suite of characters across a hybrid zone between two butterfly species. This is possible because patterns of character variation across hybrids zones allow for inferences about reproductive isolation (Barton and Hewitt 1985).

scholarly journals Saving the Trumpeter Swan

Oryx ◽  
1951 ◽  
Vol 1 (4) ◽  
pp. 195-197
Author(s):  
Freda Davies
Keyword(s):  
Twentieth Century ◽  
North American ◽  
Cygnus Buccinator ◽  
Trumpeter Swan

Around the turn of the twentieth century, North American conservationists embarked on an intensive campaign to prevent the Trumpeter Swan (Cygnus buccinator) from following the Passenger Pigeon into extinction.

scholarly journals Zinc Toxicosis in a Free-flying Trumpeter Swan (Cygnus buccinator)

2004 ◽  
Vol 40 (4) ◽  
pp. 769-774 ◽  
Author(s):  
James W. Carpenter ◽  
Gordon A. Andrews ◽  
W. Nelson Beyer
Keyword(s):  
Cygnus Buccinator ◽  
Trumpeter Swan
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