Phylogeny identifies multiple colonisation events and Miocene aridification as drivers of South Asian bulbul (Passeriformes: Pycnonotidae) diversification

Jha, Ashish; Seneviratne, Sampath S.; Prayag, H. S.; Vasudevan, Karthikeyan

doi:10.1007/s13127-021-00506-y

Cited by 9 publications

(6 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also found that the paleoaridity index provides the best fit to the diversification dynamics observed in our time-calibrated phylogeny. Although aridification has been linked to elevated diversification rates in other plants and animals(Brennan & Oliver, 2017;Hernández-Hernández et al, 2014;Jha et al, 2021;Rabosky et al, 2014), our results suggest that aridification decreased diversification rates for Australian Anilios blindsnakes.…”

mentioning

confidence: 51%

Paleoenvironmental models for Australia and the impact of aridification on blindsnake diversification

Tiatragul

Skeels

Keogh

2023

Journal of Biogeography

View full text Add to dashboard Cite

AimShifts in diversification rates of Australian flora and fauna have been associated with aridification, but the relationship between diversification rates and aridity has never been quantified. We employed multiple approaches to reconstruct paleoenvironments of Australia for the first time. We used this information, and phylogenetic‐based analyses, to explore how changes in temperature and increasing aridity during the Neogene influenced the diversification of the Australian blindsnakes. We tested whether diversification rates differ between arid‐adapted and mesic‐adapted lineages.TaxonTyphlopidae, Anilios blindsnakes.LocationAustralia.Materials and MethodsWe estimated the historical biogeography of blindsnakes using BioGeoBEARS. We synthesised multiple approaches to reconstruct paleotemperature and paleoaridity of Australia during the Neogene. We fitted several birth‐death models and estimated diversification rates under paleoenvironmental conditions using RPANDA. We further compared diversification rates between arid‐adapted lineages versus mesic‐adapted lineages using ClaDS and GeoHiSSE.ResultsAncestral area estimation indicated Australian blindsnakes have tropical grassland origins. We found that Australia‐specific regional paleotemperature and paleoaridity provided a better explanation for diversification rate variation than global paleotemperature. Specifically, our best‐fitting model indicated that speciation rates of blindsnakes decreased with increasing aridity. We found no difference in diversification rates between arid‐ and mesic‐adapted lineages.Main ConclusionsSoon after dispersing to Australia, the common ancestors of Australian blindsnakes diversified rapidly in mesic habitats during the early Miocene. However, as the continent became increasingly arid, diversification rates decreased. We found that shifts in the environment led to the emergence of two major clades: one remaining in primarily mesic habitats and the other adapting to the expanding arid biome. Our results emphasise the importance of both arid and tropical biomes as sources and sinks of diversification.

show abstract

mentioning

confidence: 51%

Paleoenvironmental models for Australia and the impact of aridification on blindsnake diversification

Tiatragul

Skeels

Keogh

2023

Journal of Biogeography

View full text Add to dashboard Cite

show abstract

“…2017, Jha et al . 2021). Like its East Asian sister pair, the disjunct breeding distribution of the South Asian pair ( C. alexandrinus and C. seebohmi ) suggests spatial differences in breeding range.…”

Section: Discussionmentioning

confidence: 99%

“…4). The climatic conditions of the mid-Pleistocene (Berger & Jansen 1994) might have triggered this divergence in the ancestral continental populations in South Asia, as shown in other avian groups in the region (Wickramasinghe et al 2017, Jha et al 2021. Like its East Asian sister pair, the disjunct breeding distribution of the South Asian pair (C. alexandrinus and C. seebohmi) suggests spatial differences in breeding range.…”

Section: Charadrius Seebohmimentioning

confidence: 90%

Systematic revision of the ‘diminutive’ Kentish Plover (Charadriidae: Charadrius) with the resurrection of Charadrius seebohmi based on phenotypic and genetic analyses

Niroshan

Liu

Martinez³

et al. 2023

Ibis

View full text Add to dashboard Cite

The Kentish Plover Charadrius alexandrinus Linnaeus 1758 is a common shorebird in Eurasia and North Africa that breeds in a variety of habitats, exhibits different extents of migratory behaviour and is an emerging model species of breeding system evolution. Here we focus on the resident population found across the southern tip of India and Sri Lanka, and re‐evaluate its systematic status based on phenotypic and genetic distinctiveness from a sympatric migrant, Charadrius alexandrinus sensu stricto, and the recently elevated closely related Charadrius dealbatus in East Asia. We show that the Sri Lankan and South Indian (South Asian) population differs in body size, moulting pattern and plumage coloration from C. alexandrinus and C. dealbatus. Furthermore, based on two mitochondrial, two sex‐linked and 11 autosomal microsatellite markers from 378 individuals, we show that these three taxa have moderate genetic differentiation (Fst 0.078–0.096). The South Asian taxon is sister to the clade of C. alexandrinus sensu stricto and C. dealbatus with an estimated divergence time of 1.19 million years ago. We also examined ornithological records of major museum collections in Asia, Europe and North America for the south Asian taxon to evaluate its biogeographical and taxonomic status. Based on differences in genotype, phenotype, allochronic migratory pattern and breeding range, we resurrect the most suitable synonym, Charadrius alexandrinus seebohmi Hartert and Jackson, 1915, and elevate the nomen to the species level with the proposed English name ‘Hanuman Plover’.

show abstract

“…Asian bulbuls are divided into two major clades (Oliveros and Moyle, 2010;Shakya and Sheldon, 2017;Jha et al, 2021). Our dataset includes louse samples from both of these radiations: the host genera Alophoixus, Hemixos, Hypsipetes, Iole and Ixos from Clade 2 (sensu Jha et al, 2021), and Brachypodius, Pycnonotus, Rubigula and Spizixos from Clade 1 (sensu Jha et al, 2021). However, the lice do not form two clades that correspond to those of the hosts (Figure 4).…”

Section: Relationships Within Philopteroidesmentioning

confidence: 99%

Coevolutionary analysis of the Philopteroides Mey, 2004 (Phthiraptera: Ischnocera) parasitizing bulbuls (Passeriformes: Pycnonotidae)

Ren

Gustafsson²,

Tian³

et al. 2023

Front. Ecol. Evol.

View full text Add to dashboard Cite

IntroductionAvian head lice comprise a diverse group of distantly related genera of lice that exhibit a strongly convergent morphology. Due to their lack of free-living stages, their strong morphological adaptations to living on the host’s head, and the limited opportunities for transfer between hosts during mating or nesting, the lateral transmission of head lice between non-conspecific hosts may be presumed to be restricted. Despite this, many species of head lice are ostensibly host generalists. We here examine lice of the head louse genus Philopteroides Mey, 2004, from bulbuls (Passeriformes: Pycnonotidae).MethodsWe use two different methods, ParaFit and Jane, to get insights on the co-evolutionary history of Philopteroides species and their bulbul hosts. Jane was run with a variation of event costs.ResultsOur phylogenetic analysis indicate that several morphologically cryptic species can be found in this group, most of which appear to be host specific. However, co-phylogenetic analyses indicate that host-switching has been common in the history of these lice, and co-speciation events have been rarer than expected. Moreover, lowest-cost co-evolutionary reconstructions under a variety of event costs are indistinguishable from random. An expanded dataset with more Philopterus-complex lice was found to be evenly balanced between host-switching and co-speciation events.DiscussionThe transfer of avian head lice between host species is poorly understood, but evidently fairly common. Several potential routes are discussed, but direct evidence is missing. Potentially, the presence of multiple bulbul species at fruiting trees may be an important factor in this transfer. However, such transfer routes also do not explain why Philopteroides lice on bulbuls appear to be distinct from those of other hosts. Moreover, as many of the species recovered in our analysis are morphologically indistinguishable, cryptic speciation appears to be common in this group.

show abstract

Phylogeny identifies multiple colonisation events and Miocene aridification as drivers of South Asian bulbul (Passeriformes: Pycnonotidae) diversification

Cited by 9 publications

References 64 publications

Paleoenvironmental models for Australia and the impact of aridification on blindsnake diversification

Paleoenvironmental models for Australia and the impact of aridification on blindsnake diversification

Systematic revision of the ‘diminutive’ Kentish Plover (Charadriidae: Charadrius) with the resurrection of Charadrius seebohmi based on phenotypic and genetic analyses

Coevolutionary analysis of the Philopteroides Mey, 2004 (Phthiraptera: Ischnocera) parasitizing bulbuls (Passeriformes: Pycnonotidae)

Contact Info

Product

Resources

About