|
Wildlife, Animals, and Plants
|
|
WILDLIFE DISTRIBUTION AND OCCURRENCE
WILDLIFE SPECIES: Aythya valisineria | Canvasback
GENERAL DISTRIBUTION :
Canvasbacks breed from central Alaska and northern Yukon to western
Ontario and south to southeastern Alaska; and locally in inland areas to
northeastern California across to northern Utah, central New Mexico,
northernwestern Iowa, and southern Ontario. They winter from along the
Pacific Coast from the central Aleutians and southeastern Alaska south
to Baja California; from Arizona and New Mexico to the Great Lakes; and,
along the Atlantic Coast from New England south to the Gulf Coast and
Mexico [3,8]. Canvasbacks also occasionally winter in Cuba, Bermuda,
and Guatemala [12].
ECOSYSTEMS :
FRES10 White-red-jack pine
FRES11 Spruce-fir
FRES16 Oak-gum-cypress
FRES17 Elm-ash-cottonwood
FRES23 Fir-spruce
FRES28 Western hardwoods
FRES36 Mountain grasslands
FRES37 Mountain meadows
FRES38 Plains grasslands
FRES39 Prairie
FRES40 Desert grasslands
FRES41 Wet grasslands
FRES42 Annual grasslands
STATES :
| AL |
AK |
AZ |
AR |
CA |
CO |
CT |
DE |
FL |
GA |
| HI |
ID |
IL |
IN |
IA |
KS |
KY |
LA |
ME |
MD |
| MA |
MI |
MN |
MS |
MO |
MT |
NE |
NV |
NH |
NJ |
| NM |
NY |
NC |
ND |
OH |
OK |
OR |
PA |
RI |
SC |
| SD |
TN |
TX |
UT |
VT |
VA |
WA |
WV |
WI |
WY |
| AB |
BC |
MB |
NB |
NF |
NT |
NS |
ON |
PE |
PQ |
| SK |
YT |
|
|
|
|
|
|
|
|
BLM PHYSIOGRAPHIC REGIONS :
1 Northern Pacific Border
2 Cascade Mountains
3 Southern Pacific Border
4 Sierra Mountains
5 Columbia Plateau
6 Upper Basin and Range
7 Lower Basin and Range
8 Northern Rocky Mountains
9 Middle Rocky Mountains
10 Wyoming Basin
11 Southern Rocky Mountains
12 Colorado Plateau
13 Rocky Mountain Piedmont
14 Great Plains
15 Black Hills Uplift
16 Upper Missouri Basin and Broken Lands
KUCHLER PLANT ASSOCIATIONS :
K047 Fescue - oatgrass
K048 California steppe
K049 Tule marshes
K050 Fescue - wheatgrass
K051 Wheatgrass - bluegrass
K054 Grama - tobosa prairie
K057 Galleta - three-awn shrubsteppe
K063 Foothills prairie
K064 Grama - needlegrass - wheatgrass
K065 Grama - buffalograss
K066 Wheatgrass - needlegrass
K067 Wheatgrass - bluestem - needlegrass
K068 Wheatgrass - grama - buffalograss
K069 Bluestem - grama prairie
K070 Sandsage - bluestem prairie
K072 Sea oats prairie
K073 Northern cordgrass prairie
K074 Bluestem prairie
K075 Nebraska Sandhills prairie
K076 Blackland prairie
K077 Bluestem - sacahuista prairie
K078 Southern cordgrass prairie
K079 Palmetto prairie
K080 Marl - everglades
K088 Fayette prairie
K092 Everglades
K094 Conifer bog
K105 Mangrove
SAF COVER TYPES :
95 Black willow
106 Mangrove
222 Black cottonwood - willow
235 Cottonwood - willow
SRM (RANGELAND) COVER TYPES :
NO-ENTRY
PLANT COMMUNITIES :
Canvasbacks are found on marshes or large lakes scattered throughout
boreal forests, on mixed prairies, and on the drier shortgrass prairies
[1]. Within these plant associations, canvasbacks often inhabit shallow
prairie marshes surrounded by bulrushes (Scirpus spp.), cattails (Typha
spp.), sedges (Carex spp.), reeds (Phragmites spp.), and other similar
emergent vegetation [1,8].
Canvasback nests are often located in pure stands of hardstem bulrush
(Scirpus acutus) or in hardstem bulrush mixed with cattail, burreed
(Sanguisorba spp.), or sedges [1,7]. In prairie pothole areas, cattails
are commonly used for nesting cover. At Lousana, Alberta, 29 percent of
canvasback nests were among flooded willows (Salix spp.); at Redvers,
Saskatchewan, 9 percent were among willows. On the Saskatchewan Delta,
most nests were located in reed [1].
During winter, beds of wild celery (Vallesniria spp.) in fresh water
habitats are heavily utilized by canvasbacks as are pondweeds
(Potamogeton spp.), widgeongrass (Ruppia maritima), and eelgrass
(Zostera marina) in more brackish areas. In the interior of the
continent, lakes and marshes with heavy growths of pondweeds and wild
celery provide major concentration points for canvasbacks [8].
REFERENCES :
NO-ENTRY
Related categories for Wildlife Species: Aythya valisineria
| Canvasback
|
 |
