Share This Author
Extensive population genetic structure in the giraffe
There are at least six genealogically distinct lineages of giraffe in Africa, with little evidence of interbreeding between them, and such extreme genetic subdivision within a large vertebrate with high dispersal capabilities is unprecedented and exceeds that of any other large African mammal.
Stable isotopes as indicators of altitudinal distributions and movements in an Ecuadorean hummingbird community
- K. Hobson, L. Wassenaar, B. Milá, I. Lovette, C. Dingle, T. Smith
- Environmental ScienceOecologia
- 20 May 2003
There appears to be good potential for using the (δD, δ13C) stable isotope approach to track altitudinal movements and to elucidate previously unrecognized patterns of life history variation in both temperate and tropical species that migrate across elevational isotopic gradients.
Predicting species distributions across the Amazonian and Andean regions using remote sensing data
The results suggest that the newly available remote sensing data (MODIS and QSCAT) have considerable utility in modelling the contemporary geographical distributions of species at both regional and continental scales and in predicting range shifts as a result of large-scale landuse change.
EVOLUTION OF LONG-DISTANCE MIGRATION IN AND HISTORICAL BIOGEOGRAPHY OF CATHARUS THRUSHES: A MOLECULAR PHYLOGENETIC APPROACH
The evolution of long-distance migration in and the historical biogeography of Catharus thrushes is addressed and uncertainty in ancestral character states presents an interesting scenario including potential drop-offs of resident species from migratory ancestors.
Genetic evidence for the effect of a postglacial population expansion on the phylogeography of a North American songbird
- B. Milá, D. Girman, M. Kimura, T. B. Smith
- BiologyProceedings of the Royal Society of London…
- 22 May 2000
Support is provided for the Pleistocene expansion hypothesis in MacGillivray's warbler and it is suggested that postglacial expansion of bottlenecked populations is responsible for the lack of variation and structure reported for most North American songbird species.
Divergence with gene flow and fine‐scale phylogeographical structure in the wedge‐billed woodcreeper, Glyphorynchus spirurus, a Neotropical rainforest bird
The results support the predominant role of geographical isolation in driving genetic differentiation in G. spirurus, yet suggest the role of selection in driving parallel morphological divergence along ecological gradients.
Recent postglacial range expansion drives the rapid diversification of a songbird lineage in the genus Junco
- B. Milá, J. McCormack, Gabriela Castañeda, R. Wayne, T. Smith
- Environmental Science, BiologyProceedings of the Royal Society B: Biological…
- 7 November 2007
Molecular data reveal a case of extremely rapid diversification in the songbird genus Junco as a result of a single continent-wide range expansion within the last 10 000 years, underscore the role of postglacial expansions in promoting diversification and speciation through a mechanism that represents an alternative to traditional modes of Pleistocene speciation.
Marked genetic structuring and extreme dispersal limitation in the Pyrenean brook newt Calotriton asper (Amphibia: Salamandridae) revealed by genome‐wide AFLP but not mtDNA
The high pairwise FST values between localities across numerous loci, together with the high frequency of fixed alleles in several populations, suggests a combination of marked geographic isolation, small population sizes and very limited dispersal in C. asper.
The geographic scale of diversification on islands: genetic and morphological divergence at a very small spatial scale in the Mascarene grey white-eye (Aves: Zosterops borbonicus)
A combination of past microallopatry driven by volcanic activity and selection-constrained dispersal along steep ecological gradients is proposed to explain the striking levels of population structure found within the island, although the possibility that genetic differences evolved in situ along the gradient cannot be ruled out at present.
Speciation and rapid phenotypic differentiation in the yellow‐rumped warbler Dendroica coronata complex
The relative importance of the Pleistocene glacial cycles in driving avian speciation remains controversial, partly because species limits in many groups remain poorly understood, and because current…