History of vegetation and habitat change in the Austral-Asian region

Hope, Geoffrey; Kershaw, A. Peter; Kaars, Sander van der; Sun, Xiaomin; Liew, Ping-Mei; Heusser, Linda E.; Takahara, Hikaru; McGlone, Matt S.; Miyoshi, Norio; Moss, Patrick

doi:10.1016/s1040-6182(03)00133-2

Cited by 198 publications

(189 citation statements)

References 139 publications

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“…A record of sedimentation in Laguma Pallcacocha, southern Ecuador, which is strongly influenced by ENSO variability, suggests that a strong increase in ENSO warm events and frequency took place during the late Holocene [35]. Therefore, the climate inferred from fossil pollen records in our study generally correlates with the East Asian summer monsoon and ENSO intensity records as discussed above: a moist phase during the early Holocene followed by a gradual decrease in [32,33]; (e) stalagmite δ 18 O record for Gunung Buda, Borneo [34].…”

Section: Palaeoclimatic Reconstructions and Possible Mechanismsupporting

confidence: 71%

“…Terrestrial records from high altitudes in Java and Sumatra also show that the high elevation vegetation belts in these regions moved down to lower altitudes during the glacial period [8]. Marine records from the southern and northern South China Sea and from northern Australia, show that pollen abundance from tropical montane rainforest taxa was high at the LGM [15][16][17][18]. We found that total pollen concentration was high; probably as a result of vegetation cover on the exposed shelf during lower sea level leading to the vegetation source close to the MD06-3075 core.…”

Section: Vegetation Historymentioning

confidence: 97%

“…As strong summer insolation in the northern hemisphere during the early Holocene induced strong land-ocean pressure and temperature gradients and increased onshore moist air flow during the summer, this enhanced the Asian summer monsoon [30][31][32][33]. The stalagmite δ 18 O value in Dongge cave, China, reflects a gradual weakening in the East Asian summer monsoon since 8 ka ( Figure 5(d),(e)) [32][33][34]. Although the stalagmite record in northern Borneo is closer to our site than that in China, further research has indicated that the stalagmite δ 18 O value in northern Borneo is influenced by insolation from both northern and southern hemispheres [34].…”

Section: Palaeoclimatic Reconstructions and Possible Mechanismmentioning

confidence: 99%

“…The stalagmite δ 18 O value in Dongge cave, China, reflects a gradual weakening in the East Asian summer monsoon since 8 ka ( Figure 5(d),(e)) [32][33][34]. Although the stalagmite record in northern Borneo is closer to our site than that in China, further research has indicated that the stalagmite δ 18 O value in northern Borneo is influenced by insolation from both northern and southern hemispheres [34]. The Holocene discharge trends in tropical monsoon river basins influenced by North Hemisphere summer monsoons closely follow the orbitally forced decrease in precipitation [29].…”

Section: Palaeoclimatic Reconstructions and Possible Mechanismmentioning

confidence: 99%

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A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

et al. 2011

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A palynological analysis of a marine sediment core in the southern Philippines, provides a detailed regional vegetation and climate history for the West Pacific Warm Pool (WPWP) since the Last Glacial Maximum (LGM). Chronology was determined by a detailed oxygen isotope record. A higher representation of pollen from tropical upper montane rainforest during the LGM indicate that this forest type moved down along elevation, probabaly due to the lowered temperature. During the last deglaciation and the early Holocene, mangroves were more expanded and tropical mid and upper montane rainforests were restricted, suggesting a rising sea-level and temperature increase. Herbaceous pollen and pteridophyte spore records indicate a much drier condition during the LGM than the Holocene. Mangrove development is controlled by conditions at the river mouth influenced by river discharge. Pteridophyte spores are abundant in wet conditions and are mainly transported by rivers. During the mid-Holocene, the reduction in mangrove pollen and pteridophyte spore appears to be a result of climate change: mainly decrease in river discharge. This may have been affected by the decreasing intensity of the Southeast Asian Monsoon, and the increasing frequency and intensity of warm ENSO events, El Niño, in this region.Last Glacial Maximum, tropical rainforests, palynological analyses, sea-level change, river discharge Citation:Bian Y P, Jian Z M, Weng C Y, et al. A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum.

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Section: Palaeoclimatic Reconstructions and Possible Mechanismsupporting

confidence: 71%

Section: Vegetation Historymentioning

confidence: 97%

Section: Palaeoclimatic Reconstructions and Possible Mechanismmentioning

confidence: 99%

Section: Palaeoclimatic Reconstructions and Possible Mechanismmentioning

confidence: 99%

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A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

et al. 2011

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“…This, taken together with the genetic uniqueness of faunas on Hainan Island (such as Polyplectron katsumatae) and the deep genetic divergence from their relatives on the mainland of China (such as Polyplectron bicalcaratum) [6], makes it reasonable to postulate that within the Pleistocene period, faunas on Hainan Island underwent demographic fluctuations as well. By using marine and terrestrial pollen diagrams for paleoclimate research, both Hope et al [7] and Yan [8] suggested that during the later part of the Quaternary period, such as in the LGM and the Holocene, Hainan Island has experienced long-term changes in climate and vegetation, which could have affected the habitat in which wildlife was distributed.…”

mentioning

confidence: 99%

Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications

et al. 2013

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Knowledge of the historical responses of animal species to climate changes is critical for understanding their evolutionary history and conservation. During the late Quaternary period, Southeast Asia had a larger land area than today due to lower sea levels, and its terrestrial landscape was covered by extensive forests and savannah. To date, however, the general fluctuations in landscape distribution and their impacts on the demographics history of native species during the late Quaternary periods are still disputed. Specifically, the responses of animals on Hainan Island, which is located in the northernmost region of Southeast Asia, to historical climate changes, are poorly understood. Here, we performed a series of demographic analyses based on mitochondrial DNA genes to examine the response of the resident Hainan Peacock Pheasant (Polyplectron katsumatae) to climate change. Unlike the pattern of population collapse during the ice age and expansion during the warming period, we detected a historical expansion pattern in the demographic history of Hainan Peacock Pheasant through the late Quaternary period. It was concluded that the Hainan Peacock Pheasant survived through the late Quaternary periods, despite of its currently limited distribution and population size on Hainan Island. Anthropogenic influences must be considered in conservation planning due to their impacts on currently fragmented habitats and populations. phylogeography, Quaternary, Hainan Island, Polyplectron katsumatae, conservation Citation:Chang J, Chen D, Liang W, et al. Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications.

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Amborella– Bearing Witness to the Past?

Poncet

Birnbaum

Burtet‐Sarramegna

et al. 2019

Annual Plant Reviews Online

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Amborella trichopoda(Amborellaceae) is a shrub endemic to New Caledonia in the Southwest Pacific region. This plant suddenly became famous when molecular phylogenetic studies revealed that this sole species is likely the sister taxon to all other angiosperms. It has thus been a prime research model for reconstructing plant evolution and gaining insight into what the earliest angiosperms looked like. A wealth of studies onAmborellahave now shed considerable light on its genome, morphology, anatomy, physiology, development, and architecture – this research is reviewed in this article. WhileAmborellalikely retained some ancestral traits, critical character reconstructions have also highlighted some derived and sometimes unique characters in this species. The history ofAmborellais also tied to the South Pacific archipelago of New Caledonia, its homeland. It was part of the New Caledonian biogeography puzzle and its genetic history shed light on the dynamics of its ecosystem, the rainforest understorey.Amborellais now cultivated in botanical gardens and has been the focus of some conservation measures that will also benefit other species in this biodiversity hotspot.

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History of vegetation and habitat change in the Austral-Asian region

Cited by 198 publications

References 139 publications

A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications

Amborella– Bearing Witness to the Past?

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