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Titolo:
Humoral immunocompetence correlates with date of egg-laying and reflects work load in female tree swallows
Autore:
Hasselquist, D; Wasson, MF; Winkler, DW;
Indirizzi:
Cornell Univ, Dept Neurobiol & Behav, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 Neurobiol & Behav, Ithaca, NY 14853 USA Cornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 Evolutionary Biol, Ithaca, NY 14853 USA
Titolo Testata:
BEHAVIORAL ECOLOGY
fascicolo: 1, volume: 12, anno: 2001,
pagine: 93 - 97
SICI:
1045-2249(200101/02)12:1<93:HICWDO>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
REPRODUCTIVE EFFORT; TACHYCINETA-BICOLOR; SEASONAL DECLINE; CLUTCH SIZE; PREVALENCE; PARASITE; STRESS; IMMUNOSUPPRESSION; ORNAMENTATION; INVESTMENT;
Keywords:
ELISA; humoral immunocompetence; life history; phenotypic quality; reproductive effort; Tachycineta bicolor; timing of breeding;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Hasselquist, D Univ Lund, Dept Anim Ecol, Ecol Bldg, S-22362 Lund, Sweden Univ Lund Ecol Bldg Lund Sweden S-22362 22362 Lund, Sweden
Citazione:
D. Hasselquist et al., "Humoral immunocompetence correlates with date of egg-laying and reflects work load in female tree swallows", BEH ECOLOGY, 12(1), 2001, pp. 93-97

Abstract

Because quality differences between individuals affect fitness, much research has attempted, with limited success, to relate physiological condition (e.g., body reserves), to differences in life history between individuals. Recently, it has been suggested that immunocompetence may reflect condition, and it thus may mediate variation in individual quality and reproductive performance and, ultimately, fitness. We measured humoral immunocompetence (HIC) by immunizing female tree swallows with a harmless antigen and measured the specific antibody responses in a novel enzyme-linked immunosorbent assay developed for passerine birds. HIC was strongly correlated with egg-laying date, an important determinant of reproductive success in female tree swallows. We also investigated the effect of increased workload on HIC by manipulating female flight costs by clipping flight feathers. Clipped females had lower HIC than nonclipped females. These data suggest that HIC is a measure that may reflect phenotypic quality and also appears to be sensitiveto increased workload in female tree swallows.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 22:58:26