Differentiation with drift: a spatio-temporal genetic analysis of Galápagos mockingbird populations (<i>Mimus</i>spp.)

Hoeck, Paquita E. A.; Bollmer, Jennifer L.; Parker, Patricia G.; Keller, Lukas F.

doi:10.1098/rstb.2009.0311

Cited by 58 publications

(87 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this manner several studies demonstrated a decrease of genetic diversity or an increase in genetic differentiation (e.g. refs 6,13,14). For instance, Athrey et al 15.…”

mentioning

confidence: 85%

A century of temporal stability of genetic diversity in wild bumblebees

Maebe

Meeus

Vray

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Since the 1950s, bumblebee (Bombus) species are showing a clear decline worldwide. Although many plausible drivers have been hypothesized, the cause(s) of this phenomenon remain debated. Here, genetic diversity in recent versus historical populations of bumblebee species was investigated by selecting four currently restricted and four currently widespread species. Specimens from five locations in Belgium were genotyped at 16 microsatellite loci, comparing historical specimens (1913–1915) with recent ones (2013–2015). Surprisingly, our results showed temporal stability of genetic diversity in the restricted species. Furthermore, both historical and recent populations of restricted species showed a significantly lower genetic diversity than found in populations of co-occurring widespread species. The difference in genetic diversity between species was thus already present before the alleged recent drivers of bumblebee decline could have acted (from the 1950’s). These results suggest that the alleged drivers are not directly linked with the genetic variation of currently declining bumblebee populations. A future sampling in the entire distribution range of these species will infer if the observed link between low genetic diversity and population distribution on the Belgium scale correlates with species decline on a global scale.

show abstract

“…In this manner several studies demonstrated a decrease of genetic diversity or an increase in genetic differentiation (e.g. refs 6,13,14). For instance, Athrey et al 15.…”

mentioning

confidence: 85%

A century of temporal stability of genetic diversity in wild bumblebees

Maebe

Meeus

Vray

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In general, larger populations tend to be more genetically diverse (Fig. 1, arrow 4) (Kimura and Crow, 1964;Frankham, 2005a;Hoeck et al, 2010).…”

Section: Areamentioning

confidence: 97%

Conservation implications of species–genetic diversity correlations

Kahilainen

Puurtinen

Kotiaho

2014

Global Ecology and Conservation

104

114

View full text Add to dashboard Cite

a b s t r a c tDespite its importance for the long-term viability of populations and functioning of ecosystems, the genetic diversity of populations is seldom given explicit consideration in conservation prioritization. Research on the species-genetic diversity correlation (SGDC) suggests that species diversity within a community and intrapopulation genetic diversity are positively correlated, due to the parallel influences of environmental characteristics (area, connectivity, and environmental heterogeneity) on both levels of diversity. A positive locality scale SGDC (i.e. α-SGDC) thus provides potential for simultaneous conservation of both species diversity within a locality and intrapopulation genetic diversity. However, caution is needed, since in some situations environmental characteristics can influence species diversity and genetic diversity differently, resulting in a negative α-SGDC. In such cases there can be a conflict between conservation of species diversity within localities and genetic diversity within populations. SGDCs provide useful information also for conservation planning, which considers compositional differences between localities, since the mechanisms behind α-SGDCs can also drive correlations between differentiation of community and genetic compositions (i.e. β-SGDCs). We suggest that emphasizing locality area and connectivity between similar localities in conservation planning best conserves both species and intrapopulation genetic diversity, and that focusing on highly complementary species richness may compromise conservation of genetic diversity.

show abstract

“…In general, larger populations tend to be more genetically diverse (Fig. 1, arrow 4) Frankham, 2005a;Hoeck et al, 2010).…”

Section: Areamentioning

confidence: 99%

Interspecific interactions influence contrasting spatial genetic structures in two closely related damselfly species

et al. 2014

View full text Add to dashboard Cite

The similarities in the theories of community ecology and population genetics suggest that species diversity within and between communities and genetic diversity within and between populations are driven by the same four general mechanisms: (1) drift, (2) dispersal, (3) selection, and (4) the formation of new variants (i.e. speciation and mutation). Since, for both species diversity and genetic diversity, the relative significances of each of the first three mechanisms are very much influenced by characteristics of the environment, correlations between species diversity and genetic diversity, i.e. species-genetic diversity correlations (SGDCs), are expected. Considering that practical conservation most often focuses on species diversity (or surrogates thereof), SGDCs could provide information on how conservation and management decisions influence genetic diversities of populations, and thus also their viabilities. Furthermore, teasing apart the drivers of the SGDCs can offer mechanistic explanations for diversity and therefore suggest a process-based approach to conservation. I studied the generalizability of SGDC and the role of environmental characteristics by means of a literary review and empirical studies on natural dragonfly and damselfly communities. I then conducted individual-based simulations to assess how inbreeding depression due to loss of genetic diversity can influence extinction rates in neutral multispecies metacommunities. My results suggest that SGDCs are highly variable in natural systems and that interactions between ecologically similar species can influence their genetic structures. Therefore, the results question the utility of using species diversity or genetic structures of ecologically similar species as surrogates for genetic diversity of species of conservation concern. Furthermore, my results suggest that if intraspecific genetic diversity is not explicitly considered, the extinction rates in multispecies metacommunities might be underestimated.

show abstract

Differentiation with drift: a spatio-temporal genetic analysis of Galápagos mockingbird populations (Mimusspp.)

Cited by 58 publications

References 49 publications

A century of temporal stability of genetic diversity in wild bumblebees

A century of temporal stability of genetic diversity in wild bumblebees

Conservation implications of species–genetic diversity correlations

Interspecific interactions influence contrasting spatial genetic structures in two closely related damselfly species

Contact Info

Product

Resources

About