Patterns of parasite abundance and distribution in island populations of Galápagos endemic birds

Diego Santiago-Alarcon, Noah K Whiteman, Patricia G. Parker, Robert E. Ricklefs, Gediminas Valkiunas

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Parasite life-history characteristics, the environment, and host defenses determine variation in parasite population parameters across space and time. Parasite abundance and distribution have received little attention despite their pervasive effects on host populations and community dynamics. We used analyses of variance to estimate the variability of intensity, prevalence, and abundance of 4 species of lice (Insecta: Phthiraptera) infecting Galápagos doves and Galápagos hawks and 1 haemosporidian parasite (Haemosporida: Haemoproteidae) infecting the doves across island populations throughout their entire geographic ranges. Population parameters of parasites with direct life cycles varied less within than among parasite species, and intensity and abundance did not differ significantly across islands. Prevalence explained a proportion of the variance (34%), similar to infection intensity (33%) and parasite abundance (37%). We detected a strong parasite species-by-island interaction, suggesting that parasite population dynamics is independent among islands. Prevalence (up to 100%) and infection intensity (parasitemias up to 12.7%) of Haemoproteus sp. parasites varied little across island populations.

Original languageEnglish (US)
Pages (from-to)584-590
Number of pages7
JournalJournal of Parasitology
Volume94
Issue number3
DOIs
StatePublished - Jun 2008
Externally publishedYes

Fingerprint

Islands
Birds
parasite
Parasites
bird
parasites
birds
Population
Phthiraptera
doves
Columbidae
Population Dynamics
Haemosporida
population dynamics
Hawks
distribution
Psocodea
Haemoproteus
louse
Parasitemia

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology
  • Microbiology

Cite this

Patterns of parasite abundance and distribution in island populations of Galápagos endemic birds. / Santiago-Alarcon, Diego; Whiteman, Noah K; Parker, Patricia G.; Ricklefs, Robert E.; Valkiunas, Gediminas.

In: Journal of Parasitology, Vol. 94, No. 3, 06.2008, p. 584-590.

Research output: Contribution to journalArticle

Santiago-Alarcon, Diego ; Whiteman, Noah K ; Parker, Patricia G. ; Ricklefs, Robert E. ; Valkiunas, Gediminas. / Patterns of parasite abundance and distribution in island populations of Galápagos endemic birds. In: Journal of Parasitology. 2008 ; Vol. 94, No. 3. pp. 584-590.
@article{c82571bec86244e49e43d65bc0d34b77,
title = "Patterns of parasite abundance and distribution in island populations of Gal{\'a}pagos endemic birds",
abstract = "Parasite life-history characteristics, the environment, and host defenses determine variation in parasite population parameters across space and time. Parasite abundance and distribution have received little attention despite their pervasive effects on host populations and community dynamics. We used analyses of variance to estimate the variability of intensity, prevalence, and abundance of 4 species of lice (Insecta: Phthiraptera) infecting Gal{\'a}pagos doves and Gal{\'a}pagos hawks and 1 haemosporidian parasite (Haemosporida: Haemoproteidae) infecting the doves across island populations throughout their entire geographic ranges. Population parameters of parasites with direct life cycles varied less within than among parasite species, and intensity and abundance did not differ significantly across islands. Prevalence explained a proportion of the variance (34{\%}), similar to infection intensity (33{\%}) and parasite abundance (37{\%}). We detected a strong parasite species-by-island interaction, suggesting that parasite population dynamics is independent among islands. Prevalence (up to 100{\%}) and infection intensity (parasitemias up to 12.7{\%}) of Haemoproteus sp. parasites varied little across island populations.",
author = "Diego Santiago-Alarcon and Whiteman, {Noah K} and Parker, {Patricia G.} and Ricklefs, {Robert E.} and Gediminas Valkiunas",
year = "2008",
month = "6",
doi = "10.1645/GE-1351R.1",
language = "English (US)",
volume = "94",
pages = "584--590",
journal = "Journal of Parasitology",
issn = "0022-3395",
publisher = "American Society of Parasitologists",
number = "3",

}

TY - JOUR

T1 - Patterns of parasite abundance and distribution in island populations of Galápagos endemic birds

AU - Santiago-Alarcon, Diego

AU - Whiteman, Noah K

AU - Parker, Patricia G.

AU - Ricklefs, Robert E.

AU - Valkiunas, Gediminas

PY - 2008/6

Y1 - 2008/6

N2 - Parasite life-history characteristics, the environment, and host defenses determine variation in parasite population parameters across space and time. Parasite abundance and distribution have received little attention despite their pervasive effects on host populations and community dynamics. We used analyses of variance to estimate the variability of intensity, prevalence, and abundance of 4 species of lice (Insecta: Phthiraptera) infecting Galápagos doves and Galápagos hawks and 1 haemosporidian parasite (Haemosporida: Haemoproteidae) infecting the doves across island populations throughout their entire geographic ranges. Population parameters of parasites with direct life cycles varied less within than among parasite species, and intensity and abundance did not differ significantly across islands. Prevalence explained a proportion of the variance (34%), similar to infection intensity (33%) and parasite abundance (37%). We detected a strong parasite species-by-island interaction, suggesting that parasite population dynamics is independent among islands. Prevalence (up to 100%) and infection intensity (parasitemias up to 12.7%) of Haemoproteus sp. parasites varied little across island populations.

AB - Parasite life-history characteristics, the environment, and host defenses determine variation in parasite population parameters across space and time. Parasite abundance and distribution have received little attention despite their pervasive effects on host populations and community dynamics. We used analyses of variance to estimate the variability of intensity, prevalence, and abundance of 4 species of lice (Insecta: Phthiraptera) infecting Galápagos doves and Galápagos hawks and 1 haemosporidian parasite (Haemosporida: Haemoproteidae) infecting the doves across island populations throughout their entire geographic ranges. Population parameters of parasites with direct life cycles varied less within than among parasite species, and intensity and abundance did not differ significantly across islands. Prevalence explained a proportion of the variance (34%), similar to infection intensity (33%) and parasite abundance (37%). We detected a strong parasite species-by-island interaction, suggesting that parasite population dynamics is independent among islands. Prevalence (up to 100%) and infection intensity (parasitemias up to 12.7%) of Haemoproteus sp. parasites varied little across island populations.

UR - http://www.scopus.com/inward/record.url?scp=47349118300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=47349118300&partnerID=8YFLogxK

U2 - 10.1645/GE-1351R.1

DO - 10.1645/GE-1351R.1

M3 - Article

C2 - 18605785

AN - SCOPUS:47349118300

VL - 94

SP - 584

EP - 590

JO - Journal of Parasitology

JF - Journal of Parasitology

SN - 0022-3395

IS - 3

ER -