Testing the adaptive radiation hypothesis for the lemurs of Madagascar
Lemurs, the diverse, endemic primates of Madagascar, are thought to represent a classic example of adaptive radiation. Based on the most complete phylogeny of living and extinct lemurs yet assembled, I tested predictions of adaptive radiation theory by estimating rates of speciation, extinction and...
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| Format: | Article |
| Language: | English |
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The Royal Society
2017-01-01
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| Series: | Royal Society Open Science |
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| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.161014 |
| _version_ | 1818302672593223680 |
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| author | James P. Herrera |
| author_facet | James P. Herrera |
| author_sort | James P. Herrera |
| collection | DOAJ |
| description | Lemurs, the diverse, endemic primates of Madagascar, are thought to represent a classic example of adaptive radiation. Based on the most complete phylogeny of living and extinct lemurs yet assembled, I tested predictions of adaptive radiation theory by estimating rates of speciation, extinction and adaptive phenotypic evolution. As predicted, lemur speciation rate exceeded that of their sister clade by nearly twofold, indicating the diversification dynamics of lemurs and mainland relatives may have been decoupled. Lemur diversification rates did not decline over time, however, as predicted by adaptive radiation theory. Optimal body masses diverged among dietary and activity pattern niches as lineages diversified into unique multidimensional ecospace. Based on these results, lemurs only partially fulfil the predictions of adaptive radiation theory, with phenotypic evolution corresponding to an ‘early burst’ of adaptive differentiation. The results must be interpreted with caution, however, because over the long evolutionary history of lemurs (approx. 50 million years), the ‘early burst’ signal of adaptive radiation may have been eroded by extinction. |
| first_indexed | 2024-12-13T05:42:38Z |
| format | Article |
| id | doaj.art-e8ea3aef155e4ae385981ee9882414de |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-13T05:42:38Z |
| publishDate | 2017-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-e8ea3aef155e4ae385981ee9882414de2022-12-21T23:57:46ZengThe Royal SocietyRoyal Society Open Science2054-57032017-01-014110.1098/rsos.161014161014Testing the adaptive radiation hypothesis for the lemurs of MadagascarJames P. HerreraLemurs, the diverse, endemic primates of Madagascar, are thought to represent a classic example of adaptive radiation. Based on the most complete phylogeny of living and extinct lemurs yet assembled, I tested predictions of adaptive radiation theory by estimating rates of speciation, extinction and adaptive phenotypic evolution. As predicted, lemur speciation rate exceeded that of their sister clade by nearly twofold, indicating the diversification dynamics of lemurs and mainland relatives may have been decoupled. Lemur diversification rates did not decline over time, however, as predicted by adaptive radiation theory. Optimal body masses diverged among dietary and activity pattern niches as lineages diversified into unique multidimensional ecospace. Based on these results, lemurs only partially fulfil the predictions of adaptive radiation theory, with phenotypic evolution corresponding to an ‘early burst’ of adaptive differentiation. The results must be interpreted with caution, however, because over the long evolutionary history of lemurs (approx. 50 million years), the ‘early burst’ signal of adaptive radiation may have been eroded by extinction.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.161014diversificationmacroevolutionecological divergence |
| spellingShingle | James P. Herrera Testing the adaptive radiation hypothesis for the lemurs of Madagascar Royal Society Open Science diversification macroevolution ecological divergence |
| title | Testing the adaptive radiation hypothesis for the lemurs of Madagascar |
| title_full | Testing the adaptive radiation hypothesis for the lemurs of Madagascar |
| title_fullStr | Testing the adaptive radiation hypothesis for the lemurs of Madagascar |
| title_full_unstemmed | Testing the adaptive radiation hypothesis for the lemurs of Madagascar |
| title_short | Testing the adaptive radiation hypothesis for the lemurs of Madagascar |
| title_sort | testing the adaptive radiation hypothesis for the lemurs of madagascar |
| topic | diversification macroevolution ecological divergence |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.161014 |
| work_keys_str_mv | AT jamespherrera testingtheadaptiveradiationhypothesisforthelemursofmadagascar |