Genetic and phenotypic variation among geographically isolated populations of the globally threatened Dupont’s lark Chersophilus duponti

García, Jesús T.; Suárez, Francisco; Garza, Vicente; Calero‐Riestra, María; Hernández, Jorge; Pérez‐Tris, Javier

doi:10.1016/j.ympev.2007.06.022

Cited by 38 publications

(51 citation statements)

References 44 publications

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“…Besides, Moroccan and Spanish populations are clearly separated in two distinct genetic clusters. These results support the hypothesis that the Mediterranean Sea acts as a major barrier against gene flow for this species (García et al, 2008).…”

Section: Differences In Genetic Patterns Between Continentssupporting

confidence: 88%

“…A recent phylogenetic study showed that the Spanish populations are isolated from the Moroccan ones (García et al, 2008). Moreover, the restrictive habitat selection patterns (Garza et al, 2004;Vögeli et al, 2010), low dispersal and high site fidelity Vögeli et al, 2008) suggest that current Spanish populations could be also demographically isolated.…”

Section: Introductionmentioning

confidence: 99%

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Restricted gene flow and genetic drift in recently fragmented populations of an endangered steppe bird

Méndez

Tella

Godoy

2011

Biological Conservation

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a b s t r a c t Identifying the genetic processes derived from habitat fragmentation is critical for the conservation of endangered species. We conducted an integrated analysis of genetic patterns in the endangered Dupont's lark (Chersophilus duponti), a circum-Mediterranean songbird threatened by the loss and fragmentation of natural steppes in recent decades. After sampling all the remaining Spanish populations and the two closest North African ones, we found that the Mediterranean Sea acts as a major barrier against gene flow and that recent habitat fragmentation is isolating Spanish populations at different spatial scales. While we found a historical signal of gene flow among Spanish regions, a coalescent model supported that the ancestral panmictic population is evolving into several different units in the absence of current gene flow, genetic drift being more intense in the smaller and more isolated populations. Moreover, small-scale spatial autocorrelation analyses showed that genetic differentiation is also acting within populations. The spatial genetic structure, significant levels of inbreeding and high relatedness within patches raise concerns on the viability of most of the extant populations. We highlight the urgency for steppe patches to be protected, expanded and reconnected, considering the genetic clusters identified here rather than the previously considered eco-geographic regions occupied by the species. Meanwhile, translocations could be considered as a complementary, faster management action to attenuate the crowding and genetic effects of population fragmentation and the extinction risk of small populations without compromising the current local adaptations, culture diversity and genetic clusters already known for the species..

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Section: Differences In Genetic Patterns Between Continentssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Restricted gene flow and genetic drift in recently fragmented populations of an endangered steppe bird

Méndez

Tella

Godoy

2011

Biological Conservation

View full text Add to dashboard Cite

show abstract

“…Lark taxonomy based on morphology has received much attention in Africa (Meinertzhagen, 1951;Winterbottom, 1957;Lawson, 1961;Clancey, 1989;Ryan and Bloomer, 1997;García et al, 2008) and Eurasia (Meinertzhagen, 1951;Vaurie, 1951Vaurie, , 1954Dickinson and Dekker, 2001). Recent studies have revealed considerable hidden diversity in some taxa, such as Mirafra assamica, which was proposed to be split into four species based mainly on vocal, behavioral and morphological data (Alström, 1998; corroborated by molecular study by Alström et al, 2013); the Calendulauda (previously Certhilauda) albescens complex, which was suggested to consist of three instead of two species based on mitochondrial, morphological and vocal data (Ryan et al, 1998); the Certhilauda curvirostris complex, which was recommended to be treated as five instead of one species based on mitochondrial and morphological evidence (Ryan and Bloomer, 1999); and Galerida cristata, which was shown to consist of two partly sympatric and largely reproductively isolated species in Morocco, G. cristata sensu stricto and G. macrorhyncha (Guillaumet et al, 2005(Guillaumet et al, , 2006(Guillaumet et al, , 2008.…”

Section: Alaudidaementioning

confidence: 99%

A review of the recent advances in the systematics of the avian superfamily Sylvioidea

Alström¹,

Olsson²,

Lei³

2013

Chinese Birds

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The systematics of the avian superfamily Sylvioidea are reviewed, focusing on studies of relationships among families and within genera, more superficially on taxonomic studies at the species level. For the families Bernieridae and Phylloscopidae, new analyses based on already published sequence data are presented. Our understanding of relationships has been vastly improved in recent years due to a large number of molecular studies. However, the relationships among the different families remain largely obscured, probably mainly as a result of rapid divergence of the different primary lineages (families). Also, species level taxonomy has been much improved in recent years due to a large number of studies applying molecular markers and/or vocalizations and other life-history data. It seems likely that the number of species will continue to increase, as new groups are being studied with modern integrative methods.

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“…These findings also suggest that phenotypic traits could serve as a valid criterion for selection of a suitable source colony from fieldcollected materials, especially when molecular data are not available (García et al, 2008).…”

Section: Implications Of Genetic Divergencementioning

confidence: 88%

Morphological and genetic variation of the pine shoot tunnel beetle Placusa pinearum (Staphylinidae) in China

Gao¹,

BaoZhong²,

Liu³

2013

Genet. Mol. Res.

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ABSTRACT. Placusa pinearum, a newly described beetle species found living in pine shoot tunnels bored by the pine tip moth, Dioryctria rubella (Pyralidae), has potential as a vector to transport biological agents for controlling this moth pest of pine trees because of the high degree of niche overlap (co-occurrence) between them. In order to help determine the suitability of potential biological control vectors, it is useful to obtain knowledge concerning the intraspecific variation of the vector. We examined P. pinearum collected from 14 different geographical populations in China using morphological and molecular markers. An UPGMA dendrogram based on morphological characters showed divergence of populations of P. pinearum in a comparison of beetles from southwestern and 3 other geographic regions (central, northwestern, and eastern regions). We also compared 965-nucleotide sequences of the mitochondrial cytochrome oxidase subunit I gene from 56 individuals; 19 haplotypes were identified based on 28 polymorphic sites in this region. A Bayesian phylogenetic tree showed significant genetic divergence among the different populations in eastern China. In addition, absence of shared haplotypes, coupled with high pairwise F ST values, demonstrated Morphological and genetic variation of Placusa pinearum significant genetic divergence between the populations from the southwest and the other 4 main geographical regions (eastern, southern, central, and northwestern regions). Generally, we found the morphological divergence to be congruent with genetic divergence in these P. pinearum populations. This information should be useful for selection of suitable source materials in the species gene pool for future biological control programs.

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Genetic and phenotypic variation among geographically isolated populations of the globally threatened Dupont’s lark Chersophilus duponti

Cited by 38 publications

References 44 publications

Restricted gene flow and genetic drift in recently fragmented populations of an endangered steppe bird

Restricted gene flow and genetic drift in recently fragmented populations of an endangered steppe bird

A review of the recent advances in the systematics of the avian superfamily Sylvioidea

Morphological and genetic variation of the pine shoot tunnel beetle Placusa pinearum (Staphylinidae) in China

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