Characteristics of surface soil pollen of northern Borneo and its paleoenvironmental significance

Luo, Chao; Yang, Lin; Chen, Chixin; Xiang, Rong; Zheng, Zhuo; Kumar, Shailendra; Islam, Ariful; Lin, Gang

doi:10.1016/j.marmicro.2020.101926

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…Multiple studies across the world have demonstrated that these are critical for further research in understanding landscape change on a scale of a century to millennia (e.g. Boutahar et al, 2023; Gosling et al, 2009; Kumar et al, 2019; Luo et al, 2020). Moreover, completing this spatial coverage would help to answer some questions related to not only landscape history but also what the contribution of such research would be relative to human land use and adaptation to past climate variability.…”

Section: Discussionmentioning

confidence: 99%

“…Other methods of modern pollen collection, such as the use of pollen traps, should be considered in addition to the use of soil samples to better characterise modern pollen rain from the forest-wood- Gosling et al, 2009;Kumar et al, 2019;Luo et al, 2020).…”

Section: Limitations and Opportunities Of Modern Pollen Rain Studiesmentioning

confidence: 99%

“…Palynological studies play an important role in retracing past vegetation dynamics, climatic changes and changes in human land use and practices (Birks, 2019; Boutahar et al, 2023; Godwin, 1956; Gosling et al, 2009; Kumar et al, 2019; Luo et al, 2020). The potential application of palaeoecological reconstructions to modern‐day challenges has proven to be effective, particularly for biodiversity conservation, restoration and understanding the drivers of landscape change over time (Gillson, 2021; Manzano et al, 2020; Razanatsoa et al, 2022), particularly in island systems (Nogué et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Modern pollen rain reveals differences across forests, open and mosaic landscapes in Madagascar

Razafimanantsoa,

Razanatsoa

2024

Plants People Planet

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Societal Impact StatementPalaeoecological investigations are crucial in understanding millennial to centennial land use and land cover change. By analysing the modern pollen rain from four main vegetation types across Madagascar, this research provides baselines for improving the interpretation of pollen records in palaeoecological studies. This study determines the modern pollen‐vegetation relationship in Madagascar and gives a better understanding of the island's landscapes. Despite some spatial limitations, this approach contributes to resolving the debated topic related to the origin of Madagascar's open ecosystems. Knowing the vegetation history prior to and after human settlement would help guide biodiversity management and its associated ecosystem services.Summary Modern pollen rain contributes to calibrating and defining palaeo‐records relative to the current vegetation of diverse landscapes. Quantifying past vegetation change is important to better frame sustainable and resilient management methods of biodiversity considering human needs. In this paper, we aim to assess modern pollen assemblages in different vegetation types in Madagascar and inform how these could contribute to the interpretation of palaeo‐records. We identified modern pollen assemblages from 21 samples across four major vegetation types in Madagascar, including seven (N = 7) newly generated samples from the tropical dry forest in the Northwest region and 14 datasets downloaded from the African Pollen Database website. The downloaded datasets are from core tops representing modern vegetation previously analysed in the tropical dry forests and spiny thickets, the wooded grassland–bushland mosaic and the littoral humid forest. We evaluated the frequency of different taxa in the samples and conducted multivariate analyses to evaluate the similarities and ecological affinities between samples. Pollen rain reflected the main vegetation types across Madagascar and provided information on the current structure and state of the landscape. Regarding the interpretation of pollen records, pollen rain samples revealed that: (i) Open mosaic ecosystems should contain a percentage of at least 40% grass pollen, informing on the origin of the vegetation in older samples and the state of degradation in more recent vegetation reconstructions; and (ii) Anthropogenic vegetation such as plantations are marked by the abundance of pioneer taxa such as Pinus and/or Eucalyptus spp. with a frequency >20%. Our findings improve the interpretations of pollen records and help differentiate past distribution of forest, open and mosaic vegetation, in Madagascar. It will contribute to further research on human practices, land use and into scenarios of conservation planning not only in Madagascar but also across the tropics.

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