Semipalmated Sandpiper

Calidris pusilla

General Status Rank: 
Sensitive
ELCODE: 
ABNNF11040
Common Name: 
Semipalmated Sandpiper
Scientific Name: 
Calidris pusilla
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Taxonomy
Group: 
Bird
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Aves
Order: 
Charadriiformes
Family: 
Scolopacidae
References: 
B004
General Biology

Economic/Human Considerations

nonhunted species
References: 
H125
Habitat
moist tundra, sandy places along rivers
References: 
B004
H125
Distribution

Ecozones

Northern Arctic, Southern Arctic, Taiga Plains, Taiga Shield
References: 
B004

Distribution

0.25 range further north in NWT than previously thought; "Breeding range in NWT covers BCR 3 region of mainland NWT and some arctic islands (Victoria and Banks). Range extent visually estimated from range map in ""Distribution of birds in NWT & Nunavut: 2009 Review"" (CWS). "
Score: 
G
References: 
B004
VJ11
Winter Distribution Description: 
southern US to South America

Number of Occurrences

widely dispersed species
References: 
H125

Area of Occupancy

possible northward expansion
Score: 
-
References: 
VJ4
VJ12
H306
A380
Population

Population Size

North American population approx. 2 260 000; >approx. 1/7 of range in NWT- 323 000 (A380)PRISM pop estimate = 98,670 which represents about 1/3 of the NWT pop range (interim Arctic PRISM shorebird results (up to 2009) provided by H306)
Score: 
FG
References: 
VJ4
VJ13
H306
A380
Trends

Trends

Large decrease in abundance since 1970, based on migration monitoring surveys, but trend shows non-linear decline and significant regional variability, so moderate reliability (Status of Birds in Canada 2014 update, unpublished data provided by H306), Declining trend in eastern population, but western and central populations may be stable or increasing.(A380)
Score: 
DG
References: 
VJ4
VJ12
H306
A380
Threats

Threats

likely limited in NWT and Nunavut
References: 
H125

Intrinsic Vulnerability

likely limited in NWT
Score: 
-
References: 
H125
General Status Rank
Rank: 
Sensitive
Status Rank Description: 
Large population decline, mostly in eastern populations. May be stable to increasing in central portion of range (NWT birds), but more information required to know trends for NWT populations specifically. Previously ranked as sensitive and no significant new data to change rank.
S Rank: 
S3S5
Decision Process Description: 
Drafted by Vicky Johnston and S. Carriere mostly based on printed material in 2000; reviewed in 2005; Reviewed in 2010;no change; Reviewed by Danica Hogan CWS in 2015, no change
Last Updated: 
February 3, 2015

References

Area of Occupancy

  • CWS Shorebird Technical Committee (1999) unpublished appendices to CSCP. CWS CWS- Johnston's files - VJ4 Return
  • Bart, J, S. Brown, B. Harrington, and RIG Morrison. (2005) Population trends of North American shorebird.. Avian Biol. X:XX (in press) - VJ12 Return
  • Rausch, Jennie (2015) shorebird biologist, CWS Yellowknife - H306 Return
  • Andres BA, Smith PA, Morrison RIG, Gratto-Trevor CL, Brown SC, and Friis, CA. (2012) Wader Study Group Bull. 119(3): 178-194.) - A380 Return

Economic Status

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Ecozones

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Habitat

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Intrinsic Vulnerability

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

NWT Known Subspecies

Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Number of Occurrences

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Population Size

CWS Shorebird Technical Committee (1999) unpublished appendices to CSCP. CWS CWS- Johnston's files - VJ4 Return
,
Morrison, RIG, BJ McCaffery, S. Skagen, B. Andres, G. Page, S. Jones, and RE Gill. (2005) Population estimates of North American shorebirds,2005. Draft MS. (CWS?) - VJ13 Return
,
Rausch, Jennie (2015) shorebird biologist, CWS Yellowknife - H306 Return
,
Andres BA, Smith PA, Morrison RIG, Gratto-Trevor CL, Brown SC, and Friis, CA. (2012) Wader Study Group Bull. 119(3): 178-194.) - A380 Return

Range Extent

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Canadian Wildlife Service (2005) NWT/Nunavut Checklist Survey Database.. , Yellowknife, NT - VJ11 Return

Short Term Trends

  • CWS Shorebird Technical Committee (1999) unpublished appendices to CSCP. CWS CWS- Johnston's files - VJ4 Return
  • Bart, J, S. Brown, B. Harrington, and RIG Morrison. (2005) Population trends of North American shorebird.. Avian Biol. X:XX (in press) - VJ12 Return
  • Rausch, Jennie (2015) shorebird biologist, CWS Yellowknife - H306 Return
  • Andres BA, Smith PA, Morrison RIG, Gratto-Trevor CL, Brown SC, and Friis, CA. (2012) Wader Study Group Bull. 119(3): 178-194.) - A380 Return

Taxonomy

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Threats

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return