Demography and Lifetime Reproductive Success in the Polygynous Great Reed Warbler

Hasselquist, Dennis

doi:10.3838/jjo.44.181

Cited by 15 publications

(14 citation statements)

References 34 publications

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“…Despite being a long-distance migrant, the great reed warbler shows a high degree of philopatry to our study sites, and the majority of birds that do disperse settle at nearby breeding sites (Hasselquist 1995;Bensch et al 1998;. In previous studies we have found low levels of genetic variation in the great reed warbler population at Lake Kvismaren, which probably is a consequence of the recent founder event and the birds' philopatric habit (Bensch et al 1994(Bensch et al , 2000Bensch and Hasselquist 1999;Hansson et al 2000a).…”

Section: Study Species and Populationmentioning

confidence: 96%

“…data), and, if the recombination processes do not differ substantially between birds and mammals, the LD in our study population should be higher than in the human studies where the bottleneck took place hundreds (800-1600) of generations ago (Reich et al 2001;Stephens et al 2001). Furthermore, Swedish great reed warblers exhibit some other properties that generally create and promote LD (Houle 1989;Hartl and Clark 1997;Lynch and Walsh 1998): local populations are small and patchily distributed (Hasselquist 1995;, there is restricted dispersal between populations , and the presence of two distinct mitochondrial DNA lineages in the region, representing western and eastern European haplotypes, respectively (Bensch and Hasselquist 1999), suggests mixing of birds originating from genetically differentiated populations.…”

Section: How Important Is Ld For Hfcs In Natural Populations?mentioning

confidence: 99%

“…This measure is a good estimate of survival for two reasons: (1) in most passerines, a high proportion of the birds die during their first year of life, that is, from the nestling stage to their first spring (e.g., see Wheelwright and Mauck 1998). We estimate that Ͼ70% of great reed warbler nestlings die during this period (Hasselquist 1995;Bensch et al 1998;. (2) A high proportion of the surviving offspring are philopatric (about 50%; Hasselquist 1995; Bensch et al 1998;.…”

Section: Dataset Of Dyads Of Siblingsmentioning

confidence: 99%

“…Leary et al 1987;Bierne et al 1998). Furthermore, the demographic history of the species in the region, with a founder event in the early 1960s and a rapid population expansion during the 1970s and 1980s (Hasselquist 1995;Hansson et al 2000a, makes it possible that much LD occurs in the population (cf. Reich et al 2001;Stephens et al 2001).…”

Section: Heterozygosity-survival Associations In Great Reed Warblersmentioning

confidence: 99%

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Does Linkage Disequilibrium Generate Heterozygosity-Fitness Correlations in Great Reed Warblers?

et al. 2004

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Abstract. Heterozygosity-fitness correlations (HFCs) at noncoding genetic markers are commonly assumed to reflect fitness effects of heterozygosity at genomewide distributed genes in partially inbred populations. However, in populations with much linkage disequilibrium (LD), HFCs may arise also as a consequence of selection on fitness loci in the local chromosomal vicinity of the markers. Recent data suggest that relatively high levels of LD may prevail in many ecological situations. Consequently, LD may be an important factor, together with partial inbreeding, in causing HFCs in natural populations. In the present study, we evaluate whether LD can generate HFCs in a small and newly founded population of great reed warblers (Acrocephalus arundinaceus). For this purpose dyads of full siblings of which only one individual survived to adult age (i.e., returned to breed at the study area) were scored at 19 microsatellite loci, and at a gene region of hypothesized importance for survival, the major histocompatibility complex (MHC). By examining siblings, we controlled for variation in the inbreeding coefficient and thus excluded genome-wide fitness effects in our analyses. We found that recruited individuals had significantly higher multilocus heterozygosity (MLH), and mean d 2 (a microsatellite-specific variable), than their nonrecruited siblings. There was a tendency for the survivors to have a more diverse MHC than the nonsurvivors. Single-locus analyses showed that the strength of the genotype-survival association was especially pronounced at four microsatellite loci. By using genotype data from the entire breeding population, we detected significant LD between five of 162 pairs of microsatellite loci after accounting for multiple tests. Our present finding of a significant within-family multilocus heterozygosity-survival association in a nonequilibrium population supports the view that LD generates HFCs in natural populations.Key words. Heterozygosity, inbreeding depression, linkage disequilibrium, major histocompatibility complex, microsatellite.Received June 19, 2003. Accepted December 11, 2003 Correlations between heterozygosity at a set of molecular markers and fitness-associated traits have been detected in several natural and experimental populations over the last decades (Allendorf and Leary

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Section: Study Species and Populationmentioning

confidence: 96%

Section: How Important Is Ld For Hfcs In Natural Populations?mentioning

confidence: 99%

Section: Dataset Of Dyads Of Siblingsmentioning

confidence: 99%

Section: Heterozygosity-survival Associations In Great Reed Warblersmentioning

confidence: 99%

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Does Linkage Disequilibrium Generate Heterozygosity-Fitness Correlations in Great Reed Warblers?

et al. 2004

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“…About 15% of birds born in this population return to breed there Hasselquist 1995); this proportion is relatively high compared to many migratory songbird populations, thus making it possible to obtain a reasonable number of individuals measured both as nestlings and as adults. We used two measures as estimates of nestling growth and developmental condition: body mass and the length of the innermost primary wing feather.…”

Section: Introductionmentioning

confidence: 99%

Nestling growth and song repertoire size in great reed warblers: evidence for song learning as an indicator mechanism in mate choice

Nowicki

Hasselquist

Bensch

et al. 2000

Proc. R. Soc. Lond. B

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172

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Females of many songbird species show a preference for mating with males that have larger song repertoires, but the advantages associated with this preference are uncertain. We tested the hypothesis that song complexity can serve as an indicator of male quality because the development of the brain regions underlying song learning and production occurs when young birds typically face nutritional and other stresses, so that song re£ects how well a male fared during post-hatch development. A key prediction of this hypothesis is that variation in nestling condition should correspond to variation in the adult song repertoires of individuals. We used data from a long-term study of the great reed warbler (Acrocephalus arundinaceus) to test this prediction, correlating two measures of nestling development with subsequent repertoire size of males. We found that the length of the innermost primary feather, a standard measure of development, signi¢cantly predicted ¢rst-year repertoire size. The relationship between repertoire size and body mass was nearly signi¢cant, in spite of the large variance inherent in this measure. These data support the idea that song may provide females with information about a male's response to developmental stress, which in turn is expected to correlate with indirect or direct bene¢ts she might receive.

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Brood sex ratios, female harem status and resources for nestling provisioning in the great reed warbler ( Acrocephalus arundinaceus )

Westerdahl

Bensch

Hansson

et al. 2000

Behavioral Ecology and Sociobiology

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Demography and Lifetime Reproductive Success in the Polygynous Great Reed Warbler

Cited by 15 publications

References 34 publications

Does Linkage Disequilibrium Generate Heterozygosity-Fitness Correlations in Great Reed Warblers?

Does Linkage Disequilibrium Generate Heterozygosity-Fitness Correlations in Great Reed Warblers?

Nestling growth and song repertoire size in great reed warblers: evidence for song learning as an indicator mechanism in mate choice

Brood sex ratios, female harem status and resources for nestling provisioning in the great reed warbler ( Acrocephalus arundinaceus )

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