BREEDING CONDITIONS REPORT, 2006


RESPONDENT

Christian Dau

SITE NAME

Naskonat Peninsula, Yukon-Kuskokwim Delta, Alaska, USA

Contact details (phone/fax//e-mail//address):
907-786-3908/907-786-3641 // Christian_Dau@fws.gov // U.S. Fish and Wildlife Service, Migratory Bird Management Division, Mail Stop 201, 1011 E. Tudor Road, Anchorage, AK 99503-6199, USA

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:

19.06

2


WEATHER CONDITIONS

Season phenology: late

Weather conditions:

Snow melt and habitat availability was late in 2006 in comparison to the near average spring phenology in 2005 and early phenology in 2003 and 2004. Weather and habitat conditions, although delayed, were favorable prior to hatch and good waterbird productivity is expected. Flowering dates for Carex spp., Petasites frigidus, Cornus canadensis were 2-5 days later than in 2005. Green-up of Salix ovalifolia and Hippuris vulgaris was 10 days later than in 2005 as was the first large mosquito emergence on 17 June.

 

Season temperature:
Season humidity:
Date of 50% snow-cover:
Date of ice-break on rivers:
Date of final loss of snow:

BIOTIC CONDITIONS

Rodents abundance evaluation:

low

Breeding conditions:

Hatch of geese was a minimum of 10 days later than in 2005, following our departure from the field on 19 June. All waterfowl clutch sizes were down from 2005 except for Cackling Geese which was similar in 2006. Arctic fox tracks were scarce but present throughout the 25-30 km2 area surveyed and were more common than in 2005. Fox predation on nesting waterbirds appeared low. The only hatching observed prior to our departure was a Lesser Sandhill Crane on 16 June and a Semi-palmated Sandpiper on 17-18 June.
Very few Red Phalarope and Ruddy Turnstones were observed providing continuing documentation that abundance of these species is below historic levels.
 

Rodent dynamics:

No microtines were observed and there was little over-winter sign indicating their presence.

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

 

FAUNA IN STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYes    
lemmingsNo    
volesNo    
wadersYes hatching  
geeseYes hatching  
cranesYes hatching  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Recommended citation

Dau, C.P., Norment, C.J. (2006). Breeding conditions report for Naskonat Peninsula, Yukon-Kuskokwim Delta, Alaska, USA, 2006. ARCTIC BIRDS: an international breeding conditions survey. (Online database). Eds. M.Soloviev, P.Tomkovich. . Updated 11 Dec. 2008. Accessed .

 more on citation guidelines

 

HOME PAGE