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Original plant diversity and ecosystems of a small, remote oceanic island (Corvo, Azores): Implications for biodiversity conservation (2024)
Journal Article

Remote islands harbour many endemic species and unique ecosystems. They are also some of the world's most human-impacted systems. It is essential to understand how island species and ecosystems behaved prior to major anthropogenic d... Read More about Original plant diversity and ecosystems of a small, remote oceanic island (Corvo, Azores): Implications for biodiversity conservation.

FTIR spectra from grass pollen: A quest for species-level resolution of Poaceae and Cerealia-type pollen grains (2023)
Journal Article
Katsi, F., Kent, M. S., Jones, M., Fraser, W. T., Jardine, P. E., Eastwood, W., …Lomax, B. H. (2024). FTIR spectra from grass pollen: A quest for species-level resolution of Poaceae and Cerealia-type pollen grains. Review of Palaeobotany and Palynology, 321, Article 105039. https://doi.org/10.1016/j.revpalbo.2023.105039

Palynological analysis based on spore and pollen morphology is well established in the field of palaeo-environmental reconstruction but is currently not fully exploited for understanding the history and development of cereal cultivation due to diffic... Read More about FTIR spectra from grass pollen: A quest for species-level resolution of Poaceae and Cerealia-type pollen grains.

Assessing changes in global fire regimes (2023)
Preprint / Working Paper
Sayedi, S. S., Abbott, B., Vanniere, B., Leys, B., Colombaroli, D., Gil-Romera, G., …Daniau, A. Assessing changes in global fire regimes

Human activity has fundamentally altered wildfire on Earth, creating serious consequences for human health, global biodiversity, and climate change. However, it remains difficult to predict fire interactions with land use, management, and climate cha... Read More about Assessing changes in global fire regimes.

The Curse of Conservation: Empirical Evidence Demonstrating That Changes in Land-Use Legislation Drove Catastrophic Bushfires in Southeast Australia (2022)
Journal Article
Laming, A., Fletcher, M.-S., Romano, A., Mullett, R., Connor, S., Mariani, M., …Gadd, P. S. (2022). The Curse of Conservation: Empirical Evidence Demonstrating That Changes in Land-Use Legislation Drove Catastrophic Bushfires in Southeast Australia. Fire, 5(6), Article 175. https://doi.org/10.3390/fire5060175

Protecting “wilderness” and removing human involvement in “nature” was a core pillar of the modern conservation movement through the 20th century. Conservation approaches and legislation informed by this narrative fail to recognise that Aboriginal pe... Read More about The Curse of Conservation: Empirical Evidence Demonstrating That Changes in Land-Use Legislation Drove Catastrophic Bushfires in Southeast Australia.

A possible role for river restoration enhancing biodiversity through interaction with wildfire (2022)
Journal Article
Pugh, B. E., Colley, M., Dugdale, S. J., Edwards, P., Flitcroft, R., Holz, A., …Field, R. (2022). A possible role for river restoration enhancing biodiversity through interaction with wildfire. Global Ecology and Biogeography, 31(10), 1990-2004. https://doi.org/10.1111/geb.13555

Background: Historically, wildfire regimes produced important landscape-scale disturbances in many regions globally. The “pyrodiversity begets biodiversity” hypothesis suggests that wildfires that generate temporally and spatially heterogeneous mosai... Read More about A possible role for river restoration enhancing biodiversity through interaction with wildfire.

Disruption of cultural burning promotes shrub encroachment and unprecedented wildfires (2022)
Journal Article
Mariani, M., Connor, S. E., Theuerkauf, M., Herbert, A., Kuneš, P., Bowman, D., …Briles, C. (2022). Disruption of cultural burning promotes shrub encroachment and unprecedented wildfires. Frontiers in Ecology and the Environment, 20(5), 292-300. https://doi.org/10.1002/fee.2395

Recent catastrophic fires in Australia and North America have raised broad-scale questions about how the cessation of Indigenous burning practices has impacted fuel accumulation and structure. For sustainable coexistence with fire, a better understan... Read More about Disruption of cultural burning promotes shrub encroachment and unprecedented wildfires.

Spatio-Temporal Domains of Wildfire-Prone Teleconnection Patterns in the Western Mediterranean Basin (2021)
Journal Article
Rodrigues, M., Mariani, M., Russo, A., Salis, M., Galizia, L., & Cardil, A. (2021). Spatio-Temporal Domains of Wildfire-Prone Teleconnection Patterns in the Western Mediterranean Basin. Geophysical Research Letters, 48(19), Article e2021GL094238. https://doi.org/10.1029/2021GL094238

This work explores the main climate teleconnections influencing the Western Mediterranean Basin to outline homogeneous fire-prone weather domains combining cross-correlation time series and cluster analysis. We found a zonal effect of the Scandinavia... Read More about Spatio-Temporal Domains of Wildfire-Prone Teleconnection Patterns in the Western Mediterranean Basin.

Northward shift of the southern westerlies during the Antarctic Cold Reversal (2021)
Journal Article
Fletcher, M.-S., Pedro, J., Hall, T., Mariani, M., Joseph, A., Beck, K., …Lise-Pronovost, A. (2021). Northward shift of the southern westerlies during the Antarctic Cold Reversal. Quaternary Science Reviews, 271, Article 107189. https://doi.org/10.1016/j.quascirev.2021.107189

Inter-hemispheric asynchrony of climate change through the last deglaciation has been theoretically linked to latitudinal shifts in the southern westerlies via their influence over CO2 out-gassing from the Southern Ocean. Proxy-based reconstructions... Read More about Northward shift of the southern westerlies during the Antarctic Cold Reversal.

Catastrophic bushfires, indigenous fire knowledge and reframing science in Southeast Australia (2021)
Journal Article
Fletcher, M. S., Romano, A., Connor, S., Mariani, M., & Yoshi Maezumi, S. (2021). Catastrophic bushfires, indigenous fire knowledge and reframing science in Southeast Australia. Fire, 4(3), Article 61. https://doi.org/10.3390/fire4030061

The catastrophic 2019/2020 Black Summer bushfires were the worst fire season in the recorded history of Southeast Australia. These bushfires were one of several recent global conflagrations across landscapes that are homelands of Indigenous peoples,... Read More about Catastrophic bushfires, indigenous fire knowledge and reframing science in Southeast Australia.

Patterns of aeolian deposition in subtropical Australia through the last glacial and deglacial periods (2021)
Journal Article
Lewis, R. J., Tibby, J., Arnold, L. J., Gadd, P., Jacobsen, G., Barr, C., …Moss, E. (2021). Patterns of aeolian deposition in subtropical Australia through the last glacial and deglacial periods. Quaternary Research, 102, 68-90. https://doi.org/10.1017/qua.2020.117

Debate about the nature of climate and the magnitude of ecological change across Australia during the last glacial maximum (LGM; 26.5-19 ka) persists despite considerable research into the late Pleistocene. This is partly due to a lack of detailed pa... Read More about Patterns of aeolian deposition in subtropical Australia through the last glacial and deglacial periods.

Long-term drivers of vegetation turnover in Southern Hemisphere temperate ecosystems (2020)
Journal Article
Adeleye, M. A., Mariani, M., Connor, S., Haberle, S. G., Herbert, A., Hopf, F., & Stevenson, J. (2021). Long-term drivers of vegetation turnover in Southern Hemisphere temperate ecosystems. Global Ecology and Biogeography, 30(2), 557-571. https://doi.org/10.1111/geb.13232

© 2020 John Wiley & Sons Ltd Aim: Knowledge of the drivers of ecosystem changes in the past is key to understanding present ecosystem responses to changes in climate, fire regimes and anthropogenic impacts. Northern Hemisphere-focussed studies sugg... Read More about Long-term drivers of vegetation turnover in Southern Hemisphere temperate ecosystems.

The influence of natural fire and cultural practices on island ecosystems: Insights from a 4,800year record from Gran Canaria, Canary Islands (2020)
Journal Article
Ravazzi, C., Mariani, M., Criado, C., Garozzo, L., Naranjo-Cigala, A., Perez-Torrado, F. J., …de Nascimento, L. (2021). The influence of natural fire and cultural practices on island ecosystems: Insights from a 4,800year record from Gran Canaria, Canary Islands. Journal of Biogeography, 48(2), 276-290. https://doi.org/10.1111/jbi.13995

Aim: Long-term ecological data provide a stepped frame of island ecosystem transformation after successive waves of human colonization, essential to determine conservation and management baselines. However, the timing and ecological impact of initial... Read More about The influence of natural fire and cultural practices on island ecosystems: Insights from a 4,800year record from Gran Canaria, Canary Islands.

Colonialism and the environment: The pollution legacy of the Southern Hemisphere’s largest copper mine in the 20th century (2020)
Journal Article
Schneider, L., Shulmeister, N., Mariani, M., Beck, K., Fletcher, M., Zawadzki, A., …Haberle, S. G. (2022). Colonialism and the environment: The pollution legacy of the Southern Hemisphere’s largest copper mine in the 20th century. Anthropocene Review, 9(1), 3-23. https://doi.org/10.1177/2053019620968133

Mining has been a major contributor to economic development in Australia since British arrival in the late 1700s, with little to no thought about the long-term environmental consequences. This study assesses the metal pollution legacy caused by diffe... Read More about Colonialism and the environment: The pollution legacy of the Southern Hemisphere’s largest copper mine in the 20th century.

Pollen and plant diversity relationships in a Mediterranean montane area (2020)
Journal Article
Connor, S. E., van Leeuwen, J. F., (Pim) van der Knaap, W., Akindola, R. B., Adeleye, M. A., & Mariani, M. (2021). Pollen and plant diversity relationships in a Mediterranean montane area. Vegetation History and Archaeobotany, 30(5), 583-594. https://doi.org/10.1007/s00334-020-00811-0

Understanding the significance of pollen diversity is key to reconstructing plant diversity over long timescales. Here we present quantitative pollen–plant diversity comparisons for a mountainous area of the Western Mediterranean region. Samples wer... Read More about Pollen and plant diversity relationships in a Mediterranean montane area.

Background concentrations of mercury in Australian freshwater sediments: The effect of catchment characteristics on mercury deposition (2020)
Journal Article
Lintern, A., Schneider, L., Beck, K., Mariani, M., Fletcher, M., Gell, P., & Haberle, S. (2020). Background concentrations of mercury in Australian freshwater sediments: The effect of catchment characteristics on mercury deposition. Elementa: Science of the Anthropocene, 8(1), Article 019. https://doi.org/10.1525/elementa.019

Waterways in the Australian continent are facing increasing levels of mercury contamination due to industrialisation, agricultural intensification, energy production, urbanisation and mining. Mercury contamination undermines the use of waterways as a... Read More about Background concentrations of mercury in Australian freshwater sediments: The effect of catchment characteristics on mercury deposition.

Coupled effects of climate teleconnections on drought, Santa Ana winds and wildfires in southern California (2020)
Journal Article
Cardil, A., Rodrigues, M., Ramirez, J., de-Miguel, S., Silva, C. A., Mariani, M., & Ascoli, D. (2021). Coupled effects of climate teleconnections on drought, Santa Ana winds and wildfires in southern California. Science of the Total Environment, 765, Article 142788. https://doi.org/10.1016/j.scitotenv.2020.142788

Projections of future climate change impacts suggest an increase of wildfire activity in Mediterranean ecosystems, such as southern California. This region is a wildfire hotspot and fire managers are under increasingly high pressures to minimize soci... Read More about Coupled effects of climate teleconnections on drought, Santa Ana winds and wildfires in southern California.

The role of species composition in the emergence of alternate vegetation states in a temperate rainforest system (2020)
Journal Article
Fletcher, M.-S., Cadd, H. R., Mariani, M., Hall, T. L., & Wood, S. W. (2020). The role of species composition in the emergence of alternate vegetation states in a temperate rainforest system. Landscape Ecology, 35(10), 2275–2285. https://doi.org/10.1007/s10980-020-01110-9

Context: Forest systems are dynamic and can alternate between alternative stable states in response to climate, disturbance and internal abiotic and biotic conditions. Switching between states depends on the crossing of critical thresholds and the es... Read More about The role of species composition in the emergence of alternate vegetation states in a temperate rainforest system.

The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia (2020)
Journal Article
Beck, K., Mariani, M., Fletcher, M.-S., Schneider, L., Aquino-Lopez, M., Gadd, P., …Zawadzki, A. (2020). The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia. Environmental Pollution, 265, Article 114695. https://doi.org/10.1016/j.envpol.2020.114695

Mining causes extensive damage to aquatic ecosystems via acidification, heavy metal pollution, sediment loading, and Ca decline. Yet little is known about the effects of mining on freshwater systems in the Southern Hemisphere. A case in point is the... Read More about The impacts of intensive mining on terrestrial and aquatic ecosystems: A case of sediment pollution and calcium decline in cool temperate Tasmania, Australia.

The influence of fine-scale topography on the impacts of Holocene fire in a Tasmanian montane landscape (2019)
Journal Article
Cadd, H., Fletcher, M.-S., Mariani, M., Heijnis, H., & Gadd, P. S. (2019). The influence of fine-scale topography on the impacts of Holocene fire in a Tasmanian montane landscape. Journal of Quaternary Science, 34(7), 491-498. https://doi.org/10.1002/jqs.3114

Copyright © 2019 John Wiley & Sons, Ltd. Tasmania's montane temperate rainforests contain some of Australia's most ancient and endemic flora. Recent landscape-scale fires have impacted a significant portion of these rainforest ecosystems. The compl... Read More about The influence of fine-scale topography on the impacts of Holocene fire in a Tasmanian montane landscape.

Scientific drilling of sediments at Darwin Crater, Tasmania (2019)
Journal Article
Lisé-Pronovost, A., Fletcher, M. S., Mallett, T., Mariani, M., Lewis, R., Gadd, P. S., …Pedro, J. B. (2019). Scientific drilling of sediments at Darwin Crater, Tasmania. Scientific Drilling, 25, 1-14. https://doi.org/10.5194/sd-25-1-2019

A 70 m long continental sediment record was recovered at Darwin Crater in western Tasmania, Australia. The sediment succession includes a pre-lake silty sand deposit overlain by lacustrine silts that have accumulated in the ∼816 ka meteorite impact c... Read More about Scientific drilling of sediments at Darwin Crater, Tasmania.

Reduced rainfall drives biomass limitation of long‐term fire activity in Australia’s subtropical sclerophyll forests (2019)
Journal Article
Mariani, M., Tibby, J., Barr, C., Moss, P., Marshall, J. C., & McGregor, G. B. (2019). Reduced rainfall drives biomass limitation of long‐term fire activity in Australia’s subtropical sclerophyll forests. Journal of Biogeography, 46(9), 1974-1987. https://doi.org/10.1111/jbi.13628

Aim To understand the long‐term drivers of biomass burning in the sclerophyll‐dominated forests of Australia. Location Swallow Lagoon, North Stradbroke Island, Queensland, Australia. Time period Last ca. 8 kyr. Major taxa studied Eucalyptus se... Read More about Reduced rainfall drives biomass limitation of long‐term fire activity in Australia’s subtropical sclerophyll forests.

Climate change reduces resilience to fire in subalpine rainforests (2019)
Journal Article
Mariani, M., Fletcher, M.-S., Haberle, S., Chin, H., Zawadzki, A., & Jacobsen, G. (2019). Climate change reduces resilience to fire in subalpine rainforests. Global Change Biology, 25(6), 2030-2042. https://doi.org/10.1111/gcb.14609

Climate change is affecting the distribution of species and the functioning of ecosystems. For species that are slow growing and poorly dispersed, climate change can force a lag between the distributions of species and the geographic distributions of... Read More about Climate change reduces resilience to fire in subalpine rainforests.

Holocene Vegetation Dynamics and First Land-Cover Estimates in the Auvergne Mountains (Massif Central, France): Key Tools to Landscape Management (2018)
Journal Article
Miras, Y., Mariani, M., Ledger, P. M., Mayoral, A., Chassiot, L., & Lavrieux, M. (2018). Holocene Vegetation Dynamics and First Land-Cover Estimates in the Auvergne Mountains (Massif Central, France): Key Tools to Landscape Management. Interdisciplinaria Archaeologica: Natural Sciences in Archaeology, IX (2018)(2), 179-190. https://doi.org/10.24916/iansa.2018.2.5

A multi-proxy palaeoecological investigation has been undertaken at high spatio-temporal resolution in the Lower Auvergne Mountains (France). It allows us to investigate the Holocene trajectories of landscape evolution arising from the interplay betw... Read More about Holocene Vegetation Dynamics and First Land-Cover Estimates in the Auvergne Mountains (Massif Central, France): Key Tools to Landscape Management.

How significant is atmospheric metal contamination from mining activity adjacent to the Tasmanian Wilderness World Heritage Area? A spatial analysis of metal concentrations using air trajectories models (2018)
Journal Article
Schneider, L., Mariani, M., Michael-Shawn Fletcher Atun Zawadzki Henk Heijnis Simon G. Haberle, J. J. H., Saunders, K. M., Maher, W. A., Harrison, J. J., …Haberle, S. G. (2019). How significant is atmospheric metal contamination from mining activity adjacent to the Tasmanian Wilderness World Heritage Area? A spatial analysis of metal concentrations using air trajectories models. Science of the Total Environment, 656, 250-260. https://doi.org/10.1016/j.scitotenv.2018.11.241

This study investigated metal contamination from historical mining in lakes in the Tasmanian Wilderness World Heritage Area (TWWHA) and surrounding region. The largest increase in sedimentation and metal contamination occurred ca. 1930 when open-cut... Read More about How significant is atmospheric metal contamination from mining activity adjacent to the Tasmanian Wilderness World Heritage Area? A spatial analysis of metal concentrations using air trajectories models.

Climate Change Amplifications of Climate-Fire Teleconnections in the Southern Hemisphere (2018)
Journal Article
Mariani, M., Holz, A., Veblen, T. T., Williamson, G., Fletcher, M.-S., & Bowman, D. M. J. S. (2018). Climate Change Amplifications of Climate-Fire Teleconnections in the Southern Hemisphere. Geophysical Research Letters, 45(10), 5071-5081. https://doi.org/10.1029/2018GL078294

©2018. American Geophysical Union. All Rights Reserved. Recent changes in trend and variability of the main Southern Hemisphere climate modes are driven by a variety of factors, including increasing atmospheric greenhouse gases, changes in tropical s... Read More about Climate Change Amplifications of Climate-Fire Teleconnections in the Southern Hemisphere.

Centennial-scale trends in the Southern Annular Mode revealed by hemisphere-wide fire and hydroclimatic trends over the past 2400 years (2018)
Journal Article
Fletcher, M., Benson, A., Bowman, D. M., Gadd, P. S., Heijnis, H., Mariani, M., …Zawadzki, A. (2018). Centennial-scale trends in the Southern Annular Mode revealed by hemisphere-wide fire and hydroclimatic trends over the past 2400 years. Geology, 46(4), 363-366. https://doi.org/10.1130/G39661.1

Millennial-scale latitudinal shifts in the southern westerly winds (SWW) drive changes in Southern Ocean upwelling, leading to changes in atmospheric CO2 levels, thereby affecting the global climate and carbon cycle. Our aim here is to understand whe... Read More about Centennial-scale trends in the Southern Annular Mode revealed by hemisphere-wide fire and hydroclimatic trends over the past 2400 years.

Invasive cordgrass (Spartina spp.) in south-eastern Australia induces island formation, salt marsh development, and carbon storage (2017)
Journal Article
Kennedy, D. M., Konlechner, T., Zavadil, E., Mariani, M., Wong, V., Ierodiaconou, D., & Macreadie, P. (2018). Invasive cordgrass (Spartina spp.) in south-eastern Australia induces island formation, salt marsh development, and carbon storage. Geographical Research, 56(1), 80-91. https://doi.org/10.1111/1745-5871.12265

Invasive vegetation species can lead to major changes in the geomorphology of coastal systems. Within temperate estuaries in the southern hemisphere, especially Australia and New Zealand, the cordgrass Spartina spp. has become established. These spec... Read More about Invasive cordgrass (Spartina spp.) in south-eastern Australia induces island formation, salt marsh development, and carbon storage.

Coupling of the Intertropical Convergence Zone and Southern Hemisphere mid-latitude climate during the early to mid-Holocene (2017)
Journal Article
Mariani, M., Fletcher, M.-S., Drysdale, R. N., Saunders, K. M., Heijnis, H., Jacobsen, G., & Zawadzki, A. (2017). Coupling of the Intertropical Convergence Zone and Southern Hemisphere mid-latitude climate during the early to mid-Holocene. Geology, 45(12), 1083-1086. https://doi.org/10.1130/G39705.1

Conceptual models predict a tight coupling between the Intertropical Convergence Zone (ITCZ) and the Southern Westerly Winds (SWW) in response to glacial-interglacial transitions, yet little is known about this relationship under Holocene boundary co... Read More about Coupling of the Intertropical Convergence Zone and Southern Hemisphere mid-latitude climate during the early to mid-Holocene.

How old is the Tasmanian cultural landscape? A test of landscape openness using quantitative land-cover reconstructions (2017)
Journal Article
Mariani, M., Connor, S. E., Fletcher, M.-S., Theuerkauf, M., Kuneš, P., Jacobsen, G., …Zawadzki, A. (2017). How old is the Tasmanian cultural landscape? A test of landscape openness using quantitative land-cover reconstructions. Journal of Biogeography, 44(10), 2410-2420. https://doi.org/10.1111/jbi.13040

© 2017 John Wiley & Sons Ltd Aim: To test competing hypotheses about the timing and extent of Holocene landscape opening using pollen-based quantitative land-cover estimates. Location: Dove Lake, Tasmanian Wilderness World Heritage Area, Australia.... Read More about How old is the Tasmanian cultural landscape? A test of landscape openness using quantitative land-cover reconstructions.

The Southern Annular Mode determines inter-annual and centennial-scale fire activity in temperate southwest Tasmania, Australia (2016)
Journal Article
Mariani, M., & Fletcher, M.-S. (2016). The Southern Annular Mode determines inter-annual and centennial-scale fire activity in temperate southwest Tasmania, Australia. Geophysical Research Letters, 43(4), 1702-1709. https://doi.org/10.1002/2016GL068082

Southern Annular Mode (SAM) is the primary mode of atmospheric variability in the Southern Hemisphere. While it is well established that the current anthropogenic‐driven trend in SAM is responsible for decreased rainfall in southern Australia, its ro... Read More about The Southern Annular Mode determines inter-annual and centennial-scale fire activity in temperate southwest Tasmania, Australia.