Concept explainers
Hawaiian Honeycreeper Phylogeny
The Poouli (Melamprosops phaeosoma) was discovered in 1973 by a group or students from the University of Hawaii. Its membership in the Hawaiian honeycreeper clade was (until recently) controversial, mainly because its appearance and behavior are so different from other living honeycreepers. Its particularly lacked the “old tent” odor characteristic of other honeycreepers.
In 2011, Heather Lerner and her colleagues deciphered phylogeny of the 19 Hawaiian honeycreepers that were not yet officially declared to be extinct at the time, including the Poouli. The researchers sequenced mitochondrial and nuclear DNA samples taken from the honeycreepers, and also from 28 other birds (outgroups). Phylogenetic analysis of these data firmly establishes the Poouli as a member of the clade, and also reveals the Eurasian rosefinch as the clade’s closest relative (FIGURE 18.11).
FIGURE 18.11 Hawaiian honeycreeper phylogeny. This cladogram was constructed using sequence comparisons of mitochondrial DNA (whole genome), and 13 nuclear DNA loci of 19 Hawaiian honeycreeper and 28 other finch species.
3. What is the sister group of the Akikiki (Oreomystis bairdi)?
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- Hawaiian Honeycreeper Phylogeny The po'ouli (Melamprosops phaeosoma) was discovered in 1973 by a group of students from the University of Hawaii. Its membership in the Hawaiian honeycreeper clade had been controversial, mainly because its appearance and behavior are so different from other living honeycreepers. It particularly lacked the "old tent" odor characteristic of other honeycreepers. In 2011, Heather Lerner and her colleagues deciphered phylogeny of the 19 Hawaiian honeycreepers that were not yet officially declared to be extinct at the time, including the po'ouli. The researchers sequenced mitochondrial and nuclear DNA samples taken from the honeycreepers, and also from 28 other birds (outgroups). Phylogenetic analysis of these data firmly establishes the po'ouli as a member of the clade, and also reveals the Eurasian rosefinch as the clade's closest relative (FIGURE 18.10). FIGURE 18.10 Phylogeny of Hawaiian honeycreepers. This cladogram was constructed using sequence comparisons of mitochondrial DNA (whole genome), and 13 nuclear DNA loci of 19 Hawaiian honeycreepers and 28 other finch species. Which species is most closely related to the 'Apapane (Himatione sanguinea)?arrow_forwardHawaiian Honeycreeper Phylogeny The po'ouli (Melamprosops phaeosoma) was discovered in 1973 by a group of students from the University of Hawaii. Its membership in the Hawaiian honeycreeper clade had been controversial, mainly because its appearance and behavior are so different from other living honeycreepers. It particularly lacked the "old tent" odor characteristic of other honeycreepers. In 2011, Heather Lerner and her colleagues deciphered phylogeny of the 19 Hawaiian honeycreepers that were not yet officially declared to be extinct at the time, including the po'ouli. The researchers sequenced mitochondrial and nuclear DNA samples taken from the honeycreepers, and also from 28 other birds (outgroups). Phylogenetic analysis of these data firmly establishes the po'ouli as a member of the clade, and also reveals the Eurasian rosefinch as the clade's closest relative (FIGURE 18.10). FIGURE 18.10 Phylogeny of Hawaiian honeycreepers. This cladogram was constructed using sequence comparisons of mitochondrial DNA (whole genome), and 13 nuclear DNA loci of 19 Hawaiian honeycreepers and 28 other finch species. What is the sister group of the 'Akikiki (Oreomystis bairdi)arrow_forwardIs the following statements consistent with the provided data? Answer TRUE if the statement is consistent with the data.Answer FALSE if the statement is not consistent with the data. 1. According to the phylogeny toads are monophyletic. 2. According to the phylogeny a group composed of the spring peeper and the chorus frog is monophyletic. 3. If climate change results in less snowpack during the winter months, then wood frog survival will increase.arrow_forward
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