Preprints
Filtering by Subject: Life Sciences
Tick-tock, racing the clock: Parasitism is associated with decreased sprint performance in the Eastern Fence Lizard
Published: 2023-08-27
Subjects: Biology, Life Sciences, Physiology
Host-parasite relationships are important components of ecological systems that influence the evolution of both hosts and parasites. High levels of ectoparasitic infections can disrupt host homeostasis, causing adverse effects on health and performance. However, the effects of natural ectoparasitic levels on host physiology are less understood, with most research designs implementing experimental [...]
A standard protocol for harvesting biodiversity data from Facebook
Published: 2023-08-27
Subjects: Ecology and Evolutionary Biology, Life Sciences
1. The expanding use of citizen science platforms has led to an exponential increase in biodiversity data in global repositories. Yet, our understanding of species distribution remains patchy for most of the world. Social media data has the potential to reduce the global biodiversity knowledge gap. However, practical guidelines and standardised pipelines to harvest such data sources are still [...]
A Perspective on How Glyphosate and 2,4-D May Impact Climate Change
Published: 2023-08-26
Subjects: Biogeochemistry, Climate, Earth Sciences, Environmental Sciences, Life Sciences, Physical Sciences and Mathematics
An increase in herbicide use is occurring due to a growing population and herbicide-resistant crops in agriculture, which has resulted in more herbicide tolerant target species. Glyphosate and 2,4-Dichlorophenoxyacetic acid (2,4-D) are two of the most commonly used herbicides worldwide and are more recently being used in combination in pre-mixed commercial formulas. Subsequently, herbicide [...]
Assessing the multidimensional complexity of biodiversity using a globally standardized approach
Published: 2023-08-25
Subjects: Biodiversity, Life Sciences
Quantifying biodiversity across the globe is critical for transparent reporting and assessment under the Kunming-Montreal Global Biodiversity Framework. Understanding the complexity of biodiversity requires consideration of the variation of life across genetic, species and ecosystem levels. Achieving this in a globally-standardized way remains a key international challenge. Here, we present the [...]
Sea otter recovery buffers century-scale declines in California kelp forests
Published: 2023-08-25
Subjects: Life Sciences, Physical Sciences and Mathematics
The status of kelp forests and their vulnerability to climate change are of global significance. As the foundation for productive and extensive ecosystems, understanding the long-term trends in kelp is critical to coastal ecosystem management, climate resiliency, and restoration programs. In this study, we curate historical US government kelp inventories, develop methods to compare them with [...]
Gardens as drivers of native plant dispersal and conservation
Published: 2023-08-25
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Life Sciences
1. Gardens hold untapped potential for participatory biodiversity conservation. Conservation gardening has recently emerged as a way to foster declining native plant species in urban and rural green spaces. But the impact of cultivating these species on population trends in the broader landscape remains underexplored. 2. Here, I study the effects of cultivating herbaceous native plants on [...]
On the trade-off between accuracy and spatial resolution when estimating species occupancy from geographically biased samples
Published: 2023-08-23
Subjects: Life Sciences, Physical Sciences and Mathematics
Species occupancy is often defined as the proportion of areal units (sites) in a landscape that the focal species occupies, but it is usually estimated from the subset of sites that have been sampled. Assuming no measurement error, we show that three quantities–the degree of sampling bias (in terms of site selection), the proportion of sites that have been sampled and the variability of [...]
Origin and Evolution of Translation: A Unifying Perspective Across Time
Published: 2023-08-23
Subjects: Life Sciences
Translation is a foundational biological process that decodes genetic information provided by an mRNA template. Over the past decade major advancements have been made towards understanding the origins and early evolution of translation. There remain two critical gaps: First, we lack a coherent view of how translation factors emerged and co-evolved to regulate the cellular protein synthesis. [...]
Additions and Corrections to the Taxonomy of “Cistanthe arenaria” (Montiaceae)
Published: 2023-08-21
Subjects: Ecology and Evolutionary Biology, Life Sciences
This work provides corrections and additions to a previously published taxonomy of Chilean plants classified as Cistanthe arenaria (Cham.) Carolin ex Hershk. The identity of Calandrinia bracteosa Phil. is discussed. Errors and omissions involving a table, figures and figure captions, and measurement are reported.
DAISIEmainland: an R package for simulating an island-mainland system for macroevolution on islands
Published: 2023-08-21
Subjects: Ecology and Evolutionary Biology, Life Sciences
Speciation and extinction of species are two of the most fundamental processes that are investigated in the field of evolutionary biology. Ideally, one would like to study these processes in replicated isolated systems. Islands come close to this setting if colonisation is rare. However, often we cannot directly measure when an island was colonised, when a colonist species speciated, or when [...]
CasPEDIA Database: A Functional Classification System for Class 2 CRISPR-Cas Enzymes
Published: 2023-08-17
Subjects: Biochemistry, Biophysics, and Structural Biology, Bioinformatics, Life Sciences
CRISPR-Cas enzymes enable RNA-guided bacterial immunity and are widely used for biotechnological applications including genome editing. In particular, the Class 2 CRISPR-associated enzymes (Cas9, Cas12 and Cas13 families), have been deployed for numerous research, clinical and agricultural applications. However, the immense genetic and biochemical diversity of these proteins in the public domain [...]
On the use of individual-based models in predictive plant ecology
Published: 2023-08-17
Subjects: Life Sciences
The use of IBM may be the only possible method for getting quantitative insights into some dynamical aspects of animal populations with complicated behavior, but this is surely not the case in plant ecology, where relevant plant population models have been formulated and used for decades. In my opinion, credible predictive plant ecological models is most effectively performed using population [...]
The feeding apparatus of ants: An overview of structure and function
Published: 2023-08-15
Subjects: Life Sciences
Ants are a dominant family of eusocial terrestrial insects with a diversity of ecologies, lifestyles and morphologies. Ant diet preferences range from strict carnivory through omnivory to almost complete herbivory in species feeding on seeds or exudates of plant sucking insects. While several studies have investigated ant feeding performance on different substrates, comparatively little is [...]
Feedback loops drive ecological succession; towards a unified conceptual framework
Published: 2023-08-15
Subjects: Ecology and Evolutionary Biology, Life Sciences
The core principle shared by most theories and models of succession is that plant-environment (PE) feedback dynamics drive a directional change in the plant community, following a major disturbance. The most commonly studied feedback loops are those in which the regrowth of the plant community causes changes to the biotic (e.g., dispersers) or abiotic (e.g., soil nutrients) environment, which [...]
Botany and Geogenomics: constraining geological hypotheses in the Neotropics with large-scale genetic data derived from plants
Published: 2023-08-09
Subjects: Ecology and Evolutionary Biology, Life Sciences
Decades of empirical research have revealed how the geological history of our planet shaped plant evolution by establishing well-known patterns (e.g., how mountain uplift resulted in high rates of diversification and replicate radiations in montane plant taxa). Under this approach, information is passed from geology to botany by interpreting data in light of geological processes. Instead, in this [...]