The progressive co-evolutionary development of the Pan-Tibetan Highlands, the Asian monsoon system and Asian biodiversity

Geological Society London Special Publications, Journal Year: 2024, Volume and Issue: 549(1)

Published: May 22, 2024

Within the ongoing controversy regarding orogeny of Tibetan Plateau region, two directly conflicting endmember frameworks have emerged in which either: (1) a high central ‘proto-plateau’ existed before onset India–Asia continental collision; or (2) early Paleogene Tibet comprised wide east–west-oriented lowland c. 1–2 km above sea-level, bounded by (>4.5 km) mountain systems. Reconstructing development plateau correctly is fundamental to running realistic Earth system models that explore monsoon and biodiversity evolution understanding interplay between dynamics, landscape critical for future resource management. We strengths weaknesses different palaeoaltimetric methodologies as applied across region. Combining methodologies, appreciating vulnerabilities arising from their underlying assumptions testing them using numerical climate produces consilience (agreement), allowing further refinement both proxies. argue an Central Valley was cradle conduit thermophilic biota, seeding modern regional biodiversity. The rise eastern intensified rainfall erosion, increased topographic relief biodiversification. Gradual reflected evolving topography, but modern-like Asian monsoons developed only after formed Miocene.

Language: Английский

---

The role of mountains in shaping the global meridional overturning circulation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 23, 2024

Abstract The meridional overturning circulation (MOC) in the ocean is a key player global climate system, while continental topography provides an essential backdrop to system. In this study, we design series of coupled model sensitivity experiments investigate influence various mountain ranges on thermohaline circulation. results highlight Tibetan Plateau (TP) It emerges as requisite for establishing Atlantic MOC (AMOC) and determining factor cessation Pacific (PMOC). Additionally, Antarctic continent plays vital role facilitating TP form AMOC. While formation AMOC cannot be attributed any single range, alone can inhibit PMOC’s development. By modifying hydrological cycle, likely have been crucial molding

Language: Английский

---

Phylogenomics ofMessorharvester ants (Hymenoptera: Formicidae: Stenammini) unravels their biogeographical origin and diversification patterns

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract As a major abiotic factor, climate change is expected to profoundly alter biological communities. On this basis, identifying how past temperature variations affected species diversification and distribution can help predict the effects of ongoing change. In study, we focused on harvester ant genus Messor which mostly adapted dry environments dominated by seed-producing plants. The phylogenetic analysis 2,524 markers obtained from 58 species/subspecies, supports their emergence in Irano-Indian area approximately 20 Mya. Phylogenetic relationships uncovered study enabled us redefine historical taxonomic groups, providing solid basis for future revisions that encompass entire diversity. Their appears be temperature, with higher speciation rate during warmer periods. This confirms ecological specialization makes them strongly dependent thermal conditions. Our results highlight importance factors processes, especially highly specialized may exhibit predictable evolutionary responses changes.

Language: Английский

---

Collision, mantle convection and Tethyan closure in the Eastern Mediterranean

Nature Reviews Earth & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Language: Английский

---

Generating Spatialised and Seasonal Deep‐Time Palaeoclimatic Information: Integration Into an Environmental‐Dependent Diversification Model

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(4)

Published: April 1, 2025

ABSTRACT Aim Testing the impact of climate on diversification is a major goal evolutionary biology. Birth‐death models like palaeoenvironment‐dependent (PDD) models, for example, allow exploring potential correlations between dynamics and past environmental changes, such as temperature, among other abiotic variables. So far, studies have been limited to proxy‐derived global temperature trends, because these are only records that easily accessible almost continuous over multimillion‐year periods. Innovation In this study, we propose methodology generate spatialised and/or seasonal palaeotemperature time series. To do so, take advantage variables simulated by several ‘snapshots’ last 100 million years. Based hypothesis long‐term drift imprinted, some degree, all regional records, use record mean interpolation discrete simulations. We then evaluate possibility constraining PDD implemented in RPANDA, with hybrid assess if trends may be more relevant history given clade than used so far. Main Conclusions Our results show using series tend receive high statistical support. This offers promising perspectives refining our understanding evolution dynamics, calls continuing development deep‐time palaeoclimate modelling interdisciplinary studies.

Language: Английский

---

Tibetan Plateau Uplift Changed the Asian Climate and Regulated Its Responses to Orbital Forcing During the Late Eocene to Early Miocene

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(8)

Published: April 16, 2025

Abstract The Tibetan Plateau (TP) uplift is believed to influence the Asian climate evolution on tectonic timescales throughout Cenozoic era, whereas orbital cycles much shorter timescales. However, specific role of former in modulating responses latter remains inadequately understood, hindering our comprehension evolution. To tackle this issue, we simulated by using Community Earth System Model version 1.2.2 for two key periods: late Eocene‐early Oligocene and Oligocene‐early Miocene. simulations show that TP not only strengthened monsoon (AM), resulting more annual summer precipitation due its elevated heating but also significantly amplified eccentricity‐precession forcing minorly weakened obliquity climate. Given a relatively lower smaller during Oligocene, northern East little influenced cycles, contrast previous reconstruction records. This implied higher and/or larger might have existed at time. As continued rise Miocene, AM became sensitive rising insolation, with increasing southern region while decreasing region. These findings emphasize significance taking into account when examining Cenozoic.

Language: Английский

---

Joint Effects of Coastal and Inland Mountains on East Asian Climate During the Late Cretaceous

Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(9)

Published: April 29, 2025

Abstract Understanding the climatic impacts of complex mountain configurations is a key challenge, particularly in East Asia during Late Cretaceous, where diverse landscapes existed but their interactions remain under‐explored. Using HadCM3L climate model, we simulate for various and validate results with two model‐proxy comparison methods based on proxies paleo‐Köppen classification. Our findings, aligned geological evidence, suggest possible presence Coastal, Taihang, Yanshan Mountains Cretaceous. Surface radiation energy calculations reveal that mountains influenced temperature through cloud processes caused localized warming due to vegetation changes. Moisture budget show controlled inland aridity atmospheric circulation, contributed drought near transient eddy activity. Coastal dominated shifts related Asian monsoon, Taihang amplifying these effects. These insights enhance understanding paleo‐topography dynamics.

Language: Английский

---

Vegetation feedbacks accelerated the late Miocene climate transition

Science Advances, Journal Year: 2025, Volume and Issue: 11(18)

Published: May 2, 2025

The late Miocene was an important stage for the formation of modern-like ecological and environmental patterns. Proxy data from middle to reveal that large-scale cooling drying occurred; however, reasons this climate transition remain unclear. Through a compilation proxy simulations, our results indicate atmospheric CO 2 decline markedly decreased temperature reduced precipitation in most land area, while paleogeographic changes enhanced at northern high latitudes increased East Asia, Africa, South America. In comparison, vegetation accelerated (the maximum exceeded 10°C) modulated low- mid-latitude continents decrease close 30%). This deepens understanding mechanism highlights importance feedbacks during global change.

Language: Английский

---

Northward Extension of East Asian Summer Monsoon Since the Miocene Set by the Uplift of Tibetan Plateau

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(5)

Published: March 5, 2024

Abstract The modern East Asian summer monsoon (EASM) features an extension from tropical to subtropical areas. However, the fundamental process that determines northward of EASM in geological history remains unclear. Here, we showed evidence proxy data, climate modeling, and theoretical solutions today's boundary emerged no later than Miocene. was driven by seasonal march which stepwise rainfall stages. progression determined Rossby wave responses early late caused weakening westerly jet colliding with Tibetan Plateau (TP). further led a migration western Pacific high thereby precipitation. Our findings propose novel physical linkage between evolution TP uplift context march.

Language: Английский

---

East Asian winter monsoon intensification over the Northwest Pacific Ocean driven by late Miocene atmospheric CO ₂ decline

Science Advances, Journal Year: 2024, Volume and Issue: 10(25)

Published: June 19, 2024

East Asian winter monsoon (EAWM) activity has had profound effects on environmental change throughout Asia and the western Pacific. Much attention been paid to Quaternary EAWM evolution, while long-term fluctuation characteristics drivers remain unclear, particularly during late Miocene when marked global climate paleogeographic changes occurred. To clarify understanding of we developed a high-precision 9-million-year-long stacked record from Northwest Pacific Ocean abyssal sediments based magnetism, sedimentology, geochemistry, which reveals strengthened EAWM. Our paleoclimate simulations also indicate that atmospheric CO

Language: Английский

---