scholarly journals Overwintering strategies of migratory birds: a novel approach for estimating seasonal movement patterns of residents and transients

2016 ◽  
Vol 53 (4) ◽  
pp. 1035-1045 ◽  
Author(s):  
Viviana Ruiz-Gutierrez ◽  
William L. Kendall ◽  
James F. Saracco ◽  
Gary C. White
2020 ◽  
Vol 7 ◽  
Author(s):  
Chun-I Chiang ◽  
Ming-Tsung Chung ◽  
Jen-Chieh Shiao ◽  
Pei-Ling Wang ◽  
Tin-Yam Chan ◽  
...  

1990 ◽  
Vol 68 (6) ◽  
pp. 1288-1291 ◽  
Author(s):  
Catherine Frazer ◽  
Jerry R. Longcore ◽  
Daniel G. McAuley

We monitored the movements of 97 female and 15 male juvenile American black ducks (Anas rubripes) in the vicinity of Moosehom National Wildlife Refuge in eastern Maine and southwestern New Brunswick from September through mid-December, 1985–1987. Movements were described by estimating home ranges and radial movements from the primary roost marsh. Overall home range sizes averaged 4987 ha (range 54 – 28 070 ha), and maximum distances moved from the roost averaged 9.9 km (range 0.9–42.8 km). Home ranges were linear (linearity index 2.8), and home range area and distance of movements from the roost both increased monthly. Ducks that used >15% riverine habitat had larger home ranges and moved greater distances from the roost than ducks using <15% riverine wetlands. Movements did not differ between ducks usually alone and those usually in flocks. Juvenile black ducks moved in small flocks and were often alone (34% of 355 observations). Most ducks showed fidelity to one roost-marsh complex from September until migration in late November. Daily and seasonal movement patterns were similar to those predicted for refuging systems.


2000 ◽  
Author(s):  
B.L. Tiller ◽  
R.K. Zufelt ◽  
S. Turner ◽  
L.L. Cadwell ◽  
L. Bender ◽  
...  

1982 ◽  
Vol 9 (3) ◽  
pp. 373 ◽  
Author(s):  
GJE Hill

A 2-y study was made of seasonal movement patterns of the eastern grey kangaroo, Macropus giganteus Shaw, in the Warwick district of south-eastern, and the Bollon district of south-western, Queensland. Faecal pellet counts were used to obtain indices of kangaroo usage of cleared country adjacent to cover. Kangaroos were sensitive to changes in forage status, particularly pasture phenology. As quality and quantity of forage reserves declined, animals made progressively greater use of cleared areas. This resulted in marked seasonal changes in distribution patterns. Of the variables quantified (rainfall, soil moisture storage and pasture growth), rainfall provided the best correlations with kangaroo usage of cleared country, explaining 55% (P = 0.002) of the variation in distribution at Warwick and 91% (P = 0.001) of that at Bollon.


2005 ◽  
Vol 134 (5) ◽  
pp. 1400-1409 ◽  
Author(s):  
Angela C. Benson ◽  
Trent M. Sutton ◽  
Robert F. Elliott ◽  
Thomas G. Meronek

1989 ◽  
Vol 18 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Martin Aluja ◽  
Ronald J. Prokopy ◽  
Joseph S. Elkinton ◽  
Francis Laurence

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