Annual survival of house finches in relation to west nile virus

Anne R. Pellegrini, Stan Wright, William Reisen, Beatrix Treiterer, Holly B Ernest

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

From 2001 to 2008, we estimated probabilities of survival and encounter of adult House Finches (Carpodacus mexicanus) breeding at Stone Lakes National Wildlife Refuge, Sacramento County, California, from capture-recapture data on birds trapped with mist nets and ground traps. Our primary objectives were to determine when West Nile virus (WNV, Flaviviridae, Flavivirus) arrived at the site and if survivorship changed after this arrival. We monitored viral activity by screening blood samples from House Finches for WNV antibodies with an enzyme immunoassay and by testing mosquito pools for viral RNA. WNV arrived after the breeding season in late 2004, so we compared data from 2001-2004 (pre-WNV) to that from 2005-2008 (post-WNV). We found a decrease in annual survival following the arrival of WNV (pre-WNV, 0.59; post WNV, 0.47), which, if representative, may have contributed to the reported decline in the abundance of this species in northern California.

Original languageEnglish (US)
Pages (from-to)233-238
Number of pages6
JournalCondor
Volume113
Issue number1
DOIs
StatePublished - Feb 2011

Fingerprint

West Nile virus
immunoassay
mosquito
survivorship
breeding season
Flaviviridae
refuge
antibody
RNA
Flavivirus
blood
enzyme immunoassays
breeding
enzyme
bird
Culicidae
conservation areas
lake
traps
survival rate

Keywords

  • Adult survival
  • Carpodacus mexicanus
  • House Finch
  • Mark-recapture
  • West Nile virus

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Annual survival of house finches in relation to west nile virus. / Pellegrini, Anne R.; Wright, Stan; Reisen, William; Treiterer, Beatrix; Ernest, Holly B.

In: Condor, Vol. 113, No. 1, 02.2011, p. 233-238.

Research output: Contribution to journalArticle

Pellegrini, Anne R. ; Wright, Stan ; Reisen, William ; Treiterer, Beatrix ; Ernest, Holly B. / Annual survival of house finches in relation to west nile virus. In: Condor. 2011 ; Vol. 113, No. 1. pp. 233-238.
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