Leucocytozoon grusi sp. n. (Sporozoa: Leucocytozoidae) from a Sandhill Crane, Grus canadensis (L.)

1974 ◽  
Vol 60 (2) ◽  
pp. 359 ◽  
Author(s):  
Gordon F. Bennett ◽  
Rasul A. Khan ◽  
A. Gillian Campbell
Keyword(s):  
Grus Canadensis ◽  
Sandhill Crane

Host–Parasite Behavioral Interactions in a Recently Introduced, Whooping Crane Population

2015 ◽  
Vol 6 (1) ◽  
pp. 220-226 ◽  
Author(s):  
Richard S. King ◽  
Patrick C. McKann ◽  
Brian R. Gray ◽  
Michael S. Putnam
Keyword(s):  
Reproductive Performance ◽  
Black Flies ◽  
Behavioral Differences ◽  
Whooping Crane ◽  
Black Fly ◽  
Grus Canadensis ◽  
Sandhill Crane ◽  
Conservation History ◽  
Whooping Cranes ◽  
Sandhill Cranes

Abstract The whooping crane Grus americana has a long conservation history, but despite multiple attempts across North America, introduction success is lacking. Recently introduced, captively reared whooping cranes have had periods of poor reproductive performance in central Wisconsin that sometimes coincided with black fly (Diptera: Simuliidae) emergences. Sandhill crane Grus canadensis reproductive performance in central Wisconsin is approximately double that of whooping cranes. We used comfort behaviors as a measure of black fly harassment to infer whether behavioral differences existed between nesting sandhill cranes and nesting whooping cranes and between successful and unsuccessful whooping crane pairs. To further explore the interaction between black flies and incubating whooping cranes, we examined differences in behaviors between incubating birds and their off-nest mates. Compared to their off-nest mates, incubating whooping cranes exhibited elevated comfort behaviors, suggesting a bird at a nest may experience greater harassment from black flies. Sandhill cranes had elevated head-flicks over whooping cranes. Whooping cranes exhibited more head-rubs than sandhill cranes, and successful whooping crane pairs had elevated head-rubs over pairs that deserted their nests. Behavioral differences between sandhill cranes and whooping cranes as well as differences in reproductive performance, could be explained by exposure to local breeding conditions. Whereas sandhill cranes have nested in the area for hundreds, if not thousands, of years, whooping cranes were only recently introduced to the area. Behavioral differences between the species as well as those between successful and unsuccessful whooping crane pairs could also be explained by the effect of captive exposure, which could affect all whooping crane introductions.

scholarly journals Sandhill Crane, Grus canadensis, Nesting in the Yorkton Wetland Complex, Saskatchewan

2003 ◽  
Vol 117 (2) ◽  
pp. 224
Author(s):  
Ann M. Burke
Keyword(s):  
Open Water ◽  
Adult Mortality ◽  
Grus Canadensis ◽  
Scirpus Acutus ◽  
Sandhill Crane ◽  
Mate Change ◽  
Wetland Complex ◽  
Total Productivity ◽  
Sandhill Cranes ◽  
Hunting Mortality

Surveys for Sandhill Cranes (Grus canadensis) were conducted near Yorkton, Saskatchewan during the summers of 1995, 1996 and 1997. Seven nesting territories were identified and habitat measurements were taken at six nests. All nests were located in the emergent deep marsh zone of open water marshes within residual stands of Hardstem Bulrush (Scirpus acutus). Seven eggs were measured in four nests. Estimated hatching dates ranged from 20 May to 9 June. Total productivity for the three years was 0.80 chick per breeding pair (12 offspring fledged by 15 pairs). Individual pair productivity was impacted by disturbance, mate change, adult mortality, and predation. Hunting mortality may also impact the population.

Incubation Period of the Sandhill Crane, Grus canadensis tabida

The Auk ◽  
1950 ◽  
Vol 67 (4) ◽  
pp. 513-513
Author(s):  
Lawrence H. Walkinshaw
Keyword(s):  
Incubation Period ◽  
Grus Canadensis ◽  
Sandhill Crane ◽  
Grus Canadensis Tabida

scholarly journals Mycobacterium avium SEROTYPE 1 INFECTION IN A SANDHILL CRANE (Grus canadensis)

1977 ◽  
Vol 13 (1) ◽  
pp. 40-42 ◽  
Author(s):  
CHARLES O. THOEN ◽  
ELMER M. HIMES ◽  
RICHARD E. BARRETT
Keyword(s):  
Mycobacterium Avium ◽  
Grus Canadensis ◽  
Sandhill Crane ◽  
Serotype 1

Integrating microsatellite and pedigree analyses to facilitate the captive management of the endangered Mississippi sandhill crane (Grus canadensis pulla)

Zoo Biology ◽  
2011 ◽  
Vol 31 (3) ◽  
pp. 322-335 ◽  
Author(s):  
Jessica R. Henkel ◽  
Kenneth L. Jones ◽  
Scott G. Hereford ◽  
Megan L. Savoie ◽  
S.P. Leibo ◽  
...  
Keyword(s):  
Captive Management ◽  
Grus Canadensis ◽  
Sandhill Crane

scholarly journals Evidence of avian-mediated long distance dispersal in American tardigrades

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5035 ◽  
Author(s):  
Matthew J. Mogle ◽  
Scott A. Kimball ◽  
William R. Miller ◽  
Richard D. McKown
Keyword(s):  
Bird Species ◽  
Distribution Patterns ◽  
Long Distance Dispersal ◽  
Long Distance ◽  
Neotropical Migrant ◽  
Grus Canadensis ◽  
Sandhill Crane ◽  
Migrant Birds ◽  
North And South

Terrestrial tardigrades, commonly known as “water bears”, are part of a phylum of microscopic, aquatic invertebrates famous for cryptobiosis and space travel, but little is known about their modes of dispersal on Earth. Wind is assumed, but not truly demonstrated, to be the major method of global dispersal. Yet, some water bear distribution patterns cannot be explained by patterns of prevailing winds. Mammals and birds have been proposed as potential animal vectors. Importantly, most nearctic-neotropical migrant birds move north and south, with many crossing the equator, whereas prevailing winds move west to east or east to west but do not cross the equator. When multiplied by billions of birds over tens of millions of years, if the ectozoochory of tardigrades by birds is true then both regional and intercontinental patterns can be better explained. To test for the potential role of birds in tardigrade dispersal, the nests of 10 species for birds were examined. Seventy percent of nests were positive for tardigrades, demonstrating that some birds are in a position for transference. The carcasses of eight birds (six species) found dead from window strikes and a Sandhill Crane (Grus canadensis) found dead during routine surveys were also examined. Of the birds examined, 66% yielded tardigrades from two classes, three orders, and five species, including juveniles, adults, and eggs, suggesting that many bird species are potential vectors for many species of tardigrades. Our data support the hypothesis of avian-mediated long distance dispersal of tardigrades and provide evidence that further investigation is warranted.

scholarly journals New Summer Areas and Mixing of Two Greater Sandhill Crane Populations in the Intermountain West

2015 ◽  
Vol 7 (1) ◽  
pp. 141-152 ◽  
Author(s):  
Daniel P. Collins ◽  
Blake A. Grisham ◽  
Courtenay M. Conring ◽  
Jeffrey M. Knetter ◽  
Warren C. Conway ◽  
...  
Keyword(s):  
Colorado River ◽  
Rocky Mountain ◽  
River Valley ◽  
Private Lands ◽  
Grus Canadensis ◽  
Sandhill Crane ◽  
Sandhill Cranes ◽  
Wildlife Refuges ◽  
Lower Colorado River ◽  
Mountain Population

Abstract Population delineation throughout the annual life cycle for migratory birds is needed to formulate regional and national management and conservation strategies. Despite being well studied continentally, connectivity of sandhill crane Grus canadensis populations throughout the western portion of their North American range remains poorly described. Our objectives were to 1) use global positioning system satellite transmitter terminals to identify summer distributions for the Lower Colorado River Valley Population of greater sandhill cranes Grus canadensis tabida and 2) determine whether intermingling occurs among any of the western greater sandhill crane populations: Rocky Mountain Population, Lower Colorado River Valley Population, and Central Valley Population. Capture and marking occurred during winter and summer on private lands in California and Idaho as well as on two National Wildlife Refuges: Cibola and Sonny Bono Salton Sea National Wildlife Refuges. A majority of marked greater sandhill cranes summered in what is established Lower Colorado River Valley Population breeding areas in northeastern Nevada and southwestern Idaho. A handful of greater sandhill cranes summered outside of traditional breeding areas in west-central Idaho around Cascade Reservoir near Donnelly and Cascade, Idaho. For example, a greater sandhill crane colt captured near Donnelly in July 2014 survived to winter migration and moved south to areas associated with the Rocky Mountain Population. The integration of the greater sandhill crane colt captured near Donnelly provides the first evidence of potential intermingling between the Lower Colorado River Population and Rocky Mountain Population. We suggest continued marking and banding efforts of all three western populations of greater sandhill cranes will accurately delineate population boundaries and connectivity and inform management decisions for the three populations.

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