Abstract:
:Phylogenetic trees are a starting point for the study of further evolutionary and ecological questions. We show that for avian evolutionary relationships, improved taxon sampling, longer sequences and additional data sets are giving stability to the prediction of the grouping of pelecaniforms and ciconiiforms, thus allowing inferences to be made about long-term niche occupancy. Here we report the phylogeny of the pelecaniform birds and their water-carnivore allies using complete mitochondrial genomes, and show that the basic groupings agree with nuclear sequence phylogenies, even though many short branches are not yet fully resolved. In detail, we show that the Pelecaniformes (minus the tropicbird) and the Ciconiiformes (storks, herons and ibises) form a natural group within a seabird water-carnivore clade. We find pelicans are the closest relatives of the shoebill (in a clade with the hammerkop), and we confirm that tropicbirds are not pelecaniforms. In general, the group appears to be an adaptive radiation into an 'aquatic carnivore' niche that it has occupied for 60-70 million years. From an ecological and life history perspective, the combined pelecaniform-ciconiform group is more informative than focusing on differences in morphology. These findings allow a start to integrating molecular evolution and macroecology.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Gibb GC,Kennedy M,Penny Ddoi
10.1016/j.ympev.2013.03.021subject
Has Abstractpub_date
2013-08-01 00:00:00pages
229-38issue
2eissn
1055-7903issn
1095-9513pii
S1055-7903(13)00130-9journal_volume
68pub_type
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