Legacy of supervolcanic eruptions on population genetic structure of brown kiwi

Bemmels, Jordan B.; Haddrath, Oliver; Colbourne, Rogan M.; Robertson, Hugh A.; Weir, Jason T.

doi:10.1016/j.cub.2022.05.064

Cited by 4 publications

(6 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was not unexpected since PSMC analysis lacks resolution at such recent dates, as shown in Figure 3, and spurious signals of bottlenecks are often observed in the lower time limit of PSMC efficiency (1,000 -10,000 ya) limiting the use of that approach for recent periods (Li & Durbin, 2011). Lastly, we did not detect bottlenecks associated with major dated volcanic eruptions that occurred in either Reunion or Mauritius, as it has been observed in other island bird systems (Bemmels et al, 2022). This could indicate that the volcanic eruptions in the Mascarenes did not affect the totality of the islands in spite of the magnitude of some events, in particular a series that occurred around 200 kya on Reunion and are thought to have covered a large area of the island (Castellanos Melendez et al, 2023;Fretzdorff et al, 2000) and/or that the white-eyes were able to find habitat refugia in which they maintained relatively high population sizes in spite of the possible devastation of most of the island.…”

Section: Discussionsupporting

confidence: 63%

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole-genome sequencing

Gabrielli,

Leroy,

Salmona

et al. 2023

Preprint

View full text Add to dashboard Cite

Disentangling the effects of ecological disruptions operating at different spatial and temporal scales in shaping past species’ demography is particularly important in the current context of rapid environmental changes driven by both local and global factors. We argue that volcanic oceanic islands provide useful settings to study the influence of past ecological disruptions operating at local and global scales on population demographic histories. We investigate potential drivers of past population dynamics for three closely related species of passerine birds from two volcanic oceanic islands, Reunion and Mauritius (Mascarene archipelago), with distinct volcanic history. Using ABC and PSMC inferences from complete genomes, we reconstructed the demographic history of the Reunion grey white-eye (Zosterops borbonicus), the Reunion olive white-eye (Z. olivaceus), and the Mauritius grey white-eye (Z. mauritianus), and searched for possible causes underlying similarities or differences between species living on the same or different islands. Both demographic inferences strongly support ancient and long-term expansions in all species. They also reveal different trajectories between species inhabiting different islands, but consistent demographic trajectories in species or populations from the same island. Species from Reunion appear to have experienced synchronous reductions in population size during the Last Glacial Maximum, a trend not seen in the Mauritian species. Overall, this study suggests that local events have played an important role in shaping population trajectories of these island species. It also highlights the potential of our conceptual framework to disentangle the effects of local and global drivers on past species’ demography and long-term population processes.

show abstract

Section: Discussionsupporting

confidence: 63%

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole-genome sequencing

Gabrielli,

Leroy,

Salmona

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…While some new methods have become available to reconstruct demographic histories close to the present (Terhorst et al, 2017), understanding the impact on population size of very recent events still remains a challenge and requires larger datasets with multiple resequenced individuals per species (Patton et al, 2019;Wilder et al, 2023). Lastly, we did not detect bottlenecks associated with major dated volcanic eruptions that occurred in either Reunion or Mauritius, as it has been observed in other island bird systems (Bemmels et al, 2022).…”

Section: Discussionsupporting

confidence: 57%

“…While some new methods have become available to reconstruct demographic histories close to the present (Terhorst et al., 2017), understanding the impact on population size of very recent events still remains a challenge and requires larger datasets with multiple resequenced individuals per species (Patton et al., 2019; Wilder et al., 2023). Lastly, we did not detect bottlenecks associated with major dated volcanic eruptions that occurred in either Reunion or Mauritius, as it has been observed in other island bird systems (Bemmels et al., 2022). This could indicate that the volcanic eruptions in the Mascarenes did not affect the totality of the islands in spite of the magnitude of some events, in particular a series that occurred around 200 kya on Reunion and are thought to have wreaked havoc on a large area of the island (Castellanos Melendez et al., 2023; Fretzdorff et al., 2000) and/or that the white‐eyes were able to find habitat refugia in which they maintained relatively high population sizes in spite of the possible devastation of most of the island.…”

Section: Discussionsupporting

confidence: 53%

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole‐genome sequencing

Gabrielli,

Leroy,

Salmona

et al. 2023

Molecular Ecology

View full text Add to dashboard Cite

Disentangling the effects of ecological disruptions operating at different spatial and temporal scales in shaping past species' demography is particularly important in the current context of rapid environmental changes driven by both local and regional factors. We argue that volcanic oceanic islands provide useful settings to study the influence of past ecological disruptions operating at local and regional scales on population demographic histories. We investigate potential drivers of past population dynamics for three closely related species of passerine birds from two volcanic oceanic islands, Reunion and Mauritius (Mascarene archipelago), with distinct volcanic history. Using ABC and PSMC inferences from complete genomes, we reconstructed the demographic history of the Reunion Grey White‐eye (Zosterops borbonicus (Pennant, 1781)), the Reunion Olive White‐eye (Z. olivaceus (Linnaeus, 1766)) and the Mauritius Grey White‐eye (Z. mauritianus (Gmelin, 1789)) and searched for possible causes underlying similarities or differences between species living on the same or different islands. Both demographic inferences strongly support ancient and long‐term expansions in all species. They also reveal different trajectories between species inhabiting different islands, but consistent demographic trajectories in species or populations from the same island. Species from Reunion appear to have experienced synchronous reductions in population size during the Last Glacial Maximum, a trend not seen in the Mauritian species. Overall, this study suggests that local events may have played a role in shaping population trajectories of these island species. It also highlights the potential of our conceptual framework to disentangle the effects of local and regional drivers on past species' demography and long‐term population processes.

show abstract

“…eruptions in the Taupō volcanic zone) is often implicated as the cause of phylogeographic structure in other species inhabiting this region (e.g. Shepherd et al, 2007) including analogous flightless birds (Bemmels et al, 2022;Bunce et al, 2009). However, the large geo- Trewick, 2015;Trewick, 1996Trewick, , 1997, our phylogenetic analysis strongly supports a sister species relationship (Figure 4).…”

Section: Phylogeographic Structure Within Mohosupporting

confidence: 57%

“…eruptions in the Taupō volcanic zone) is often implicated as the cause of phylogeographic structure in other species inhabiting this region (e.g. Shepherd et al., 2007) including analogous flightless birds (Bemmels et al., 2022; Bunce et al., 2009). However, the large geographic distance between the sequenced moho specimens means we cannot rule out a simple isolation‐by‐distance model or discern phylogeographic barriers.…”

Section: Discussionmentioning

confidence: 99%

Ancient mitochondrial genomes unveil the origins and evolutionary history of New Zealand's enigmatic takahē and moho

Verry,

Mas‐Carrió,

Gibb

et al. 2023

Molecular Ecology

View full text Add to dashboard Cite

Many avian species endemic to Aotearoa New Zealand were driven to extinction or reduced to relict populations following successive waves of human arrival, due to hunting, habitat destruction and the introduction of mammalian predators. Among the affected species were the large flightless South Island takahē (Porphyrio hochstetteri) and the moho (North Island takahē; P. mantelli), with the latter rendered extinct and the former reduced to a single relictual population. Little is known about the evolutionary history of these species prior to their decline and/or extinction. Here we sequenced mitochondrial genomes from takahē and moho subfossils (12 takahē and 4 moho) and retrieved comparable sequence data from takahē museum skins (n = 5) and contemporary individuals (n = 17) to examine the phylogeny and recent evolutionary history of these species. Our analyses suggest that prehistoric takahē populations lacked deep phylogeographic structure, in contrast to moho, which exhibited significant spatial genetic structure, albeit based on limited sample sizes (n = 4). Temporal genetic comparisons show that takahē have lost much of their mitochondrial genetic diversity, likely due to a sudden demographic decline soon after human arrival (~750 years ago). Time‐calibrated phylogenetic analyses strongly support a sister species relationship between takahē and moho, suggesting these flightless taxa diverged around 1.5 million years ago, following a single colonisation of New Zealand by a flighted Porphyrio ancestor approximately 4 million years ago. This study highlights the utility of palaeogenetic approaches for informing the conservation and systematic understanding of endangered species whose ranges have been severely restricted by anthropogenic impacts.

show abstract

Legacy of supervolcanic eruptions on population genetic structure of brown kiwi

Cited by 4 publications

References 68 publications

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole-genome sequencing

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole-genome sequencing

Demographic responses of oceanic island birds to local and regional ecological disruptions revealed by whole‐genome sequencing

Ancient mitochondrial genomes unveil the origins and evolutionary history of New Zealand's enigmatic takahē and moho

Contact Info

Product

Resources

About