Preprints

Filtering by Subject: Botany

Evolutionary origins of the Mesoamerican-eastern United States floristic disjunction: current status and future prospects

Gregory W Stull

Published: 2022-11-07
Subjects: Biodiversity, Biology, Botany, Ecology and Evolutionary Biology, Evolution, Life Sciences, Plant Sciences

Biogeographic disjunction patterns, where multiple taxonomic groups are shared between isolated geographic areas, represent excellent systems for investigating the historical assembly of modern biotas as well as fundamental biological processes such as speciation, diversification, niche evolution, and evolutionary responses to climate change. Studies on plant genera disjunct across the Northern [...]

Deep reticulation: the long legacy of hybridization in vascular plant evolution

Gregory W Stull, Kasey K Pham, Pamela S Soltis, et al.

Published: 2022-10-26
Subjects: Biodiversity, Botany, Ecology and Evolutionary Biology, Evolution, Life Sciences, Plant Biology, Plant Sciences

Hybridization has long been recognized as a fundamental evolutionary process in plants, but our understanding of its phylogenetic distribution and biological significance across deep evolutionary scales has been largely obscure—until recently. Over the past decade, genomic and phylogenomic datasets have revealed, perhaps not surprisingly, that hybridization, often associated with polyploidy, has [...]

When and how does photoinhibition matter for plant fitness?

Shan Kothari

Published: 2022-09-13
Subjects: Botany, Ecology and Evolutionary Biology, Life Sciences, Physiology, Plant Biology, Plant Sciences, Population Biology, Terrestrial and Aquatic Ecology

The many biophysical factors that shape how plant species sort across environmental gradients may include photoinhibition, which I define broadly as oxidative damage that plants and other phototrophs risk incurring when they absorb excess light energy they cannot safely dissipate. Photoinhibition is seldom explicitly discussed as a potential driver of plant fitness and distributions. Here, I aim [...]

Heterostyly on Japanese Islands

kenta watanabe

Published: 2022-09-07
Subjects: Botany, Life Sciences, Plant Sciences

Heterostyly is a genetically controlled floral polymorphism that promote outbreeding. Although many studies on heterostyly have been done in Japan, there have been no comprehensive analysis nor review. Here I present the list of heterostyly in the native flora of Japan through reviewing references. By using this list, I tested the difference in occurrence of heterostylous species among subgroups [...]

High tolerance to zinc but limited evidence for local adaptation in the aquatic plant species Lemna gibba/minor

sofia.vamos@uzh.ch, Sofia Julia van Moorsel

Published: 2022-07-05
Subjects: Biodiversity, Botany, Life Sciences, Plant Sciences

Duckweed, a widely distributed aquatic plant family, are economically important and have high potential for phytoremediation of polluted water bodies. We collected four Lemna gibba/minor populations from across Switzerland and assessed how their original vs. foreign environments influenced their growth. Additionally, we investigated their response to a metal pollutant (Zn) in both the original [...]

The Global Forest Health Crisis: A Public Good Social Dilemma in Need of International Collective Action

Geoffrey Williams, Matthew D. Ginzel, Zhao Ma, et al.

Published: 2022-03-10
Subjects: Agricultural and Resource Economics, Agricultural Economics, Agricultural Science, Agriculture, Behavioral Economics, Biodiversity, Biology, Biosecurity, Botany, Economics, Entomology, Environmental Microbiology and Microbial Ecology Life Sciences, Environmental Studies, Forest Biology, Forest Management, Forest Sciences, International Relations, Life Sciences, Microbiology, Other Forestry and Forest Sciences, Other Plant Sciences, Pathogenic Microbiology, Plant Biology, Plant Pathology, Plant Sciences, Political Science, Science and Technology Studies, Social and Behavioral Sciences

Society is confronted by interconnected threats to ecological sustainability. Among these is the devastation of forests by destructive non-native pathogens and insects introduced through global trade, leading to the loss of critical ecosystem services and a global forest health crisis. We argue that the forest health crisis is a public good social dilemma and propose a response framework that [...]

Tree measurements in the urban environment: insights from traditional and digital field instruments to smartphone applications

Rocco Pace, Emanuela Masini, Diego Giuliarelli, et al.

Published: 2021-11-30
Subjects: Botany, Forest Management, Forest Sciences, Life Sciences, Plant Sciences

Urban forests can provide essential environmental and social functions if properly planned and managed. Tree inventory and measurements are a critical part of assessing and monitoring the size, growth, and health condition of urban trees. In this context, the parameters usually collected are DBH and total height, but additional data about crown dimensions (width, length, and crown projection) are [...]

Understanding plant microbiomes requires a G x E framework

Jun-Hee Jung, Frank Reis, Christina Richards, et al.

Published: 2021-05-20
Subjects: Biodiversity, Botany, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Breeding and Genetics Life Sciences, Plant Sciences, Terrestrial and Aquatic Ecology

Plant microbiomes have become one of the hottest topics in plant biology. Driven by the increased availability of metagenome sequencing methods, analyses of plant-associated microbiomes have been skyrocketing during the last decade. They have generally taken one of two main perspectives: (1) a focus on the microbiome itself, where researchers describe microbiome diversity and attempt to [...]

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, [...]

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 [...]

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 [...]

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