Return to the Malay Archipelago: the biogeography of Sundaic rainforest birds

Sheldon, Frederick H.; Lim, Haw Chuan; Moyle, Robert G.

doi:10.1007/s10336-015-1188-3

Cited by 77 publications

(73 citation statements)

References 156 publications

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“…Occupancy by putative competitors appears to play a secondary role in limiting the boundaries of both groups, and acts to limit lowland species more strongly. These findings also contrast with the phylogeographical inference that several montane species in Borneo (a forktail, swiftlet, spiderhunter, and leafbird) once occupied wider elevational ranges (including lowlands) but have been pushed or restricted to higher elevation by invasion of the lowlands by congeners from other islands (Moyle et al, ; Sheldon, Lim, & Moyle, ). Interestingly, though, our results mesh well with inferences from studies of phylogenetic community structure.…”

Section: Discussionmentioning

confidence: 61%

Biotic interactions help explain variation in elevational range limits of birds among Bornean mountains

Burner

Boyce

Bernasconi

et al. 2020

Journal of Biogeography

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Aim Physiological tolerances and biotic interactions along habitat gradients are thought to influence species occurrence. Distributional differences caused by such forces are particularly noticeable on tropical mountains, where high species turnover along elevational gradients occurs over relatively short distances and elevational distributions of particular species can shift among mountains. Such shifts are interpreted as evidence of the importance of spatial variation in interspecific competition and habitat or climatic gradients. To assess the relative importance of competition and compression of habitat and climatic zones in setting range limits, we examined differences in elevational ranges of forest bird species among four Bornean mountains with distinct features. Location Bornean mountains Kinabalu, Mulu, Pueh and Topap Oso. Taxon Rain forest bird communities along elevational gradients. Methods We surveyed the elevational ranges of rain forest birds on four mountains in Borneo to test which environmental variables—habitat zone compression or presence of likely competitors—best predicted differences in elevational ranges of species among mountains. For this purpose, we used two complementary tests: a comparison of elevational range limits between pairs of mountains, and linear mixed models with naïve occupancy as the response variable. Results We found that lowland species occur higher in elevation on two small mountains compared to Mt. Mulu. This result is inconsistent with the expectation that distributions of habitats are elevationally compressed on small mountains, but is consistent with the hypothesis that a reduction in competition (likely diffuse) on short mountains, which largely lack montane specialist species, allows lowland species to occur higher in elevation. The relative influence of competition changes with elevation, and the correlation between lower range limits of montane species and the distribution of their competitors was weaker than in lowland species. Main conclusions These findings provide support for the importance of biotic interactions in setting elevational range limits of tropical bird species, although abiotic gradients explain the majority of distribution patterns. Thus, models predicting range shifts under climate change scenarios must include not only climatic variables, as is currently most common, but also information on potentially resulting changes in species interactions, especially for lowland species.

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Section: Discussionmentioning

confidence: 61%

Biotic interactions help explain variation in elevational range limits of birds among Bornean mountains

Burner

Boyce

Bernasconi

et al. 2020

Journal of Biogeography

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“…Central and East Java are characterized by drier, cooler climate (climate‐data.org), and the vegetation has more grass areas than on the surrounding islands (Heany, ; Mishra, Gaillard, Hertler, Moigne, & Simanjuntak, ). Therefore, it is likely that R. timorensis , being better adapted to drier climate, would have crossed the dry central Sundaland during Pleistocene glacials to colonize east Java (Sheldon, Lim, & Moyle, ), where it stayed isolated from its sister species. After this initial separation, we find evidence of range expansion, likely during consequent drops in sea levels, demonstrated by the introgression in Java and possibly South Sumatra.…”

Section: Discussionmentioning

confidence: 99%

Human‐mediated introduction of introgressed deer across Wallace's line: Historical biogeography of Rusa unicolor and R. timorensis

Martins

Schmidt

Lenz

et al. 2017

Ecology and Evolution

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In this study we compared the phylogeographic patterns of two Rusa species, Rusa unicolor and Rusa timorensis, in order to understand what drove and maintained differentiation between these two geographically and genetically close species and investigated the route of introduction of individuals to the islands outside of the Sunda Shelf. We analyzed full mitogenomes from 56 archival samples from the distribution areas of the two species and 18 microsatellite loci in a subset of 16 individuals to generate the phylogeographic patterns of both species. Bayesian inference with fossil calibration was used to estimate the age of each species and major divergence events. Our results indicated that the split between the two species took place during the Pleistocene, ~1.8 Mya, possibly driven by adaptations of R. timorensis to the drier climate found on Java compared to the other islands of Sundaland. Although both markers identified two well‐differentiated clades, there was a largely discrepant pattern between mitochondrial and nuclear markers. While nDNA separated the individuals into the two species, largely in agreement with their museum label, mtDNA revealed that all R. timorensis sampled to the east of the Sunda shelf carried haplotypes from R. unicolor and one Rusa unicolor from South Sumatra carried a R. timorensis haplotype. Our results show that hybridization occurred between these two sister species in Sundaland during the Late Pleistocene and resulted in human‐mediated introduction of hybrid descendants in all islands outside Sundaland.

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“…Both Coturnix pectoralis and C. ypsilophora (included only in Jetz et al ., ) are Australasian, arriving after Australia separated from other landmasses (Li & Powell, ). However, lower sea levels (Haq et al ., ) and the exposure of landmasses between Southeast Asia and northern Australia (Hall, ) probably facilitated exchange of biota between the Oriental region and Australasia (Hall, ; Li & Powell, ; Pubellier et al ., ; Sheldon et al ., ). Additionally, the genus Coturnix includes the only known long‐distance migratory galliforms (Johnsgard, ; Alderton, ; Shen et al ., ), suggesting that these species may be capable of long‐distance dispersal over water.…”

Section: Discussionmentioning

confidence: 99%

Ancestral range reconstruction of Galliformes: the effects of topology and taxon sampling

Wang

Kimball

Braun

et al. 2016

Journal of Biogeography

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Aim We examined divergence times and biogeography of the avian order Galliformes (which, despite a nearly world‐wide distribution, includes many weak fliers), to test whether current distributions reflect vicariance or long‐distance dispersal. We also tested the impact of taxon sampling and tree topology on our estimates of historical biogeography. Location World‐wide. Methods We generated timetrees for all major galliform lineages using several fossil calibrations and a combination of mitochondrial and nuclear data. We compared divergence times and reconstructed ancestral ranges using this timetree and the galliforms from a recent synthetic tree for all birds. Thus, we explored the sensitivity of our conclusions to differences in topology and taxon sampling. Results The results suggest late Cretaceous origins for Megapodiidae and possibly for Cracidae, the earliest diverging families. The other families diversified in the Eocene after the break‐up of Gondwana, contrary to previous suggestions. Both topology and taxon sampling affected the ancestral area estimates, although many nodes were consistent among the approaches. Main conclusions Divergences of Numididae, Odontophoridae and Phasianidae occurred in Africa, with subsequent dispersal to other continents. Reconstructed ranges for ancestors of the earliest diverging families, Megapodiidae and Cracidae, are less conclusive, but may have involved a South American origin, then dispersal to other continents. Thus, long‐distance dispersal is likely to have been important in galliforms, possibly reflecting more vagile ancestors and repeated range expansions and contractions. There appears to be a trade‐off between the use of trees with rich taxon sampling but limited data, where key taxa can be misplaced, and more robust trees with missing taxa. When biogeographically important taxa are included, complete taxon sampling does not appear necessary for accurate ancestral area reconstruction. Robust trees that include taxa targeted based on their distribution may be the best way to improve our understanding of historical biogeography.

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Return to the Malay Archipelago: the biogeography of Sundaic rainforest birds

Cited by 77 publications

References 156 publications

Biotic interactions help explain variation in elevational range limits of birds among Bornean mountains

Biotic interactions help explain variation in elevational range limits of birds among Bornean mountains

Human‐mediated introduction of introgressed deer across Wallace's line: Historical biogeography of Rusa unicolor and R. timorensis

Ancestral range reconstruction of Galliformes: the effects of topology and taxon sampling

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