Preprints

Filtering by Subject: Plant Sciences

The diversity of plant sex chromosomes highlighted through advances in genome sequencing

Sarah Carey, Qingyi Yu, Alex Harkess

Published: 2021-01-29
Subjects: Ecology and Evolutionary Biology, Life Sciences, Plant Sciences

For centuries scientists have been intrigued by the origin of dioecy in plants, characterizing sex-specific development, uncovering cytological differences between the sexes, and developing theoretical models. However, through the invention and continued improvements in genomic technologies, we have truly begun to unlock the genetic basis of dioecy in many species. Here we broadly review the [...]

ausplotsR: An R package for rapid extraction and analysis of vegetation and soil data collected by Australia’s Terrestrial Ecosystem Research Network

Samantha Munroe, Greg Guerin, Tom Saleeba, et al.

Published: 2020-12-15
Subjects: Biostatistics, Botany, Life Sciences, Other Plant Sciences, Physical Sciences and Mathematics, Plant Biology, Plant Sciences, Statistics and Probability

The Terrestrial Ecosystem Research Network (TERN), Australia’s national land ecosystem monitoring program, measures critical environmental attributes from local to continental scale and generates quality data for research and land management. Since 2011, TERN has performed standardised field surveys and sampling across a national plot network. At each plot, TERN records vegetation structure, [...]

The photosynthetic pathways of plant species surveyed in Australia’s national terrestrial monitoring network

Samantha Munroe, Francesca A. McInerney, Jake W. Andrae, et al.

Published: 2020-11-22
Subjects: Life Sciences, Plant Biology, Plant Sciences

The photosynthetic pathway of plants is a fundamental trait that influences terrestrial environments from the local to global level. The abundance of different photosynthetic pathways in Australia is expected to undergo a substantial shift due to climate change and rising atmospheric CO2; however, tracking change is hindered by a lack of data on the pathways of species, as well as their [...]

Epigenetics and the success of invasive plants

Jeannie Mounger, Malika Ainouche, Oliver Bossdorf, et al.

Published: 2020-10-13
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences, Plant Sciences

Biological invasions impose ecological and economic problems on a global scale, but also provide extraordinary opportunities for studying contemporary evolution. It is critical to understand the evolutionary processes that underly invasion success in order to successfully manage existing invaders, and to prevent future invasions. As successful invasive species sometimes are suspected to rapidly [...]

Integrating dynamic plant growth models and microclimates for species distribution modelling

Rafael Schouten, Peter Anton Vesk, Michael Kearney

Published: 2020-08-11
Subjects: Ecology and Evolutionary Biology, Life Sciences, Plant Sciences

Climate is a major factor determining the distribution of plant species. Correlative models are frequently used to model the relationships between species distributions and climatic drivers but, increasingly, their use for prediction in novel scenarios such as climate change is being questioned. Mechanistic models, where processes limiting plant distribution are explicitly included, are regarded [...]

Indigenous Conservation Practices Are Not a Monolith: Western cultural biases and a lack of engagement with Indigenous experts undermine studies of land stewardship

Kelsey Leonard, Jared Dahl Aldern, Amy Christianson, et al.

Published: 2020-07-24
Subjects: Environmental Sciences, Forest Sciences, Life Sciences, Natural Resources and Conservation, Other Social and Behavioral Sciences, Physical Sciences and Mathematics, Plant Sciences, Social and Behavioral Sciences

Commentary On: Oswald, W. W., Foster, D. R., Shuman, B. N., Chilton, E. S., Doucette, D. L., Duranleau, D. L. Conservation implications of limited Native American impacts in pre-contact New England. Nature Sustainability https://doi.org/10.1038/s41893-019-0466-0

Desert Locust in India: The 2020 invasion and associated risks

Sayantan Ghosh, Arindam Roy

Published: 2020-06-01
Subjects: Agricultural Economics, Agricultural Science, Agriculture, Agronomy and Crop Sciences Life Sciences, Animal Sciences, Entomology, Life Sciences, Plant Sciences, Social and Behavioral Sciences, Urban Studies and Planning, Zoology

Wind direction, often used in forecasting locust migration, indicates a non-zero probability of desert locust invasion in eastern Indian states. Apart from present controlling measures, we are additionally suggesting to be cautious about the eggs of locust as the rainfall associated with Super Cyclone Amphan has created a favorable breeding ground for the gregarious locust. Also reverse migration [...]

Predicting tropical tree mortality with leaf spectroscopy

Christopher Doughty, Alexander W. Cheesman, Terhi Ruitta, et al.

Published: 2020-04-21
Subjects: Ecology and Evolutionary Biology, Forest Biology, Forest Sciences, Life Sciences, Other Ecology and Evolutionary Biology, Other Plant Sciences, Plant Sciences

Do tropical trees close to death have a distinct leaf spectral signature? Tree mortality rates have been increasing in tropical forests globally which is reducing the global carbon sink. Upcoming hyperspectral satellites could be used to predict regions close to experiencing extensive tree mortality during periods of stress like drought. Here we show how imminent tropical tree mortality in [...]

Effects of ambient climate and three different warming treatments on fruit production in an alpine meadow community

Juha Alatalo, Annika Jägerbrand, Junhu Dai, et al.

Published: 2019-12-02
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Plant Sciences, Terrestrial and Aquatic Ecology

Climate change is already having a major impact on alpine and arctic regions, and inter-annual variations in temperature are likely to increase. In a four-year study focusing on fruit production by an alpine plant community in northern Sweden, we applied three different warming regimes over the years. Treatments consisted of (a) a static level of warming with open-top chambers (OTC), (b) press [...]

Ecosystem services of a functionally diverse riparian zone in the Amazon–Cerrado agricultural frontier

Rodolfo Luiz Bezerra Nóbrega, Taciana Ziembowicz, Gilmar N. Torres, et al.

Published: 2019-08-21
Subjects: Agronomy and Crop Sciences Life Sciences, Biochemistry, Biochemistry, Biophysics, and Structural Biology, Biodiversity, Botany, Ecology and Evolutionary Biology, Forest Sciences, Life Sciences, Plant Sciences, Terrestrial and Aquatic Ecology

The ecological services provided by protected riparian zones in human-altered landscapes are widely acknowledged, yet little is known about them. In this study, we assess ecosystem properties that a protected riparian zone maintains in contrast to environmental changes in its surroundings caused by agro-industrial activities in the northwestern fringe of the Brazilian Cerrado on the [...]

Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities

Coline Deveautour, Suzanne Donn, Sally Power, et al.

Published: 2019-07-29
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Sciences, Terrestrial and Aquatic Ecology

Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We [...]

Temporal dynamics of mycorrhizal fungal communities and co-associations with grassland plant communities following experimental manipulation of rainfall

Coline Deveautour, Sally Power, Raul Ochoa-Hueso, et al.

Published: 2019-07-29
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Sciences, Terrestrial and Aquatic Ecology

Climate models project overall a reduction in rainfall amounts and shifts in the timing of rainfall events in mid-latitudes and sub-tropical dry regions, which threatens the productivity and diversity of grasslands. Arbuscular mycorrhizal fungi may help plants to cope with expected changes but may also be impacted by changing rainfall, either via the direct effects of low soil moisture on [...]

Relationships between mycorrhizal type and leaf flammability in the Australian flora

Jeff Powell, Rohan Riley, Will Cornwell

Published: 2019-07-22
Subjects: Biodiversity, Botany, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Evolution, Life Sciences, Microbiology, Plant Sciences

Mycorrhizal fungi have been linked to fire processes in natural ecosystems via their effects on litter decomposability but, to our knowledge, relationships between mycorrhizal fungi and leaf traits directly associated with aspects of flammability have not been studied. Here, we assessed the relationships among leaf traits and host mycorrhizal type for 77 species of Australian trees and shrubs to [...]

Resource allocation to growth or luxury consumption drives mycorrhizal responses

Rohan Riley, Timothy Cavagnaro, Chris Brien, et al.

Published: 2019-07-17
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Biology, Plant Sciences

Highly variable phenotypic responses in mycorrhizal plants challenge our functional understanding of plant-fungal mutualisms. Using non-invasive high-throughput phenotyping, we observed that arbuscular mycorrhizal (AM) fungi relieved phosphorus (P) limitation and enhanced growth of Brachypodium distachyon under P-limited conditions, while photosynthetic limitation under low nitrogen (N) was [...]

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