Preprints
Filtering by Subject: Life Sciences
Microbial effects on plant phenology and fitness
Published: 2021-02-26
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Sciences
Plant development and the timing of developmental events (phenology) are tightly coupled with plant fitness. A variety of internal and external factors determine the timing and fitness consequences of these life-history transitions. Microbes interact with plants throughout their life-history and impact host phenology. This review summarizes current mechanistic and theoretical knowledge [...]
Modeling complex biological systems: Tackling the parameter curse through evolution
Published: 2021-02-25
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences, Systems Biology
In this perspective paper we review a previously published evolutionary model of the lac-operon to argue and demonstrate the importance of using evolutionary methods to derive relevant parameters. We show that by doing so we can debug experimental and modeling artifacts.
Perspective: The evolutionary dangers of high COVID case counts
Published: 2021-02-25
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences, Microbiology, Virology
The recent simultaneous appearance of numerous highly contagious variants of SARS-CoV-2 demonstrate that the rate of adaptive evolution in the SARS-CoV-2 population is accelerating. It is no longer appropriate to focus only on epidemiological goals like flattening the curve and vaccinating to achieve herd immunity. We are now in a new phase of the pandemic, in which we must also focus on the [...]
A Roadmap Toward Predicting Species Interaction Networks (Across Space and Time)
Published: 2021-02-24
Subjects: Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Networks of species interactions underpin numerous ecosystem processes, but comprehensively sampling these interactions is difficult. Interactions intrinsically vary across space and time, and given the number of species that compose ecological communities, it can be tough to distinguish between a true negative (where two species never interact) from a false negative (where two species have not [...]
A Global Agenda for Advancing Freshwater Biodiversity Research
Published: 2021-02-23
Subjects: Biodiversity, Life Sciences
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals and the mobilization of substantial resources. While the reasons are varied, investments in both research and conservation of freshwater biodiversity lag far behind those in the terrestrial and marine realms. Inspired by a global consultation, we identify 15 pressing priority [...]
The origin of life: Oligomerization of RNA nucleotides on prebiotic Earth
Published: 2021-02-23
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences
We propose a plausible oligomerization process of RNA nucleotides on prebiotic Earth. The process takes place at tideland and estuary where wet & dry cycle and pH fluctuation occur due to tide. The process proceeds with help of clay minerals that catalyze not only oligomerization but also cross complementary self-replication of RNA oligomers by lowering the activation energy of covalent [...]
Habitat shapes diversity of gut microbiomes in a wild population of blue tits (Cyanistes caeruleus)
Published: 2021-02-23
Subjects: Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Microbiome constitutes and important axis of individual variation, affecting physiology and body condition via a number of pathways. Consequently, microbiome may be involved in ecological feedbacks, manifesting themselves as associations between microbiome characteristics and ecological factors experienced by individuals. In this study we report on the diversity and habitat dependence of [...]
Guidelines for reporting methods to estimate metabolic rates by aquatic intermittent-flow respirometry
Published: 2021-02-22
Subjects: Biology, Integrative Biology, Life Sciences
Interest in the measurement of metabolic rates is growing rapidly, due to the relevance of metabolism in understanding organismal physiology, behaviour, evolution and responses to environmental change. The study of metabolism in aquatic animals is undergoing an especially pronounced expansion, with more researchers utilising intermittent-flow respirometry as a research tool than ever before. [...]
Evolution of sexual development and sexual dimorphism in insects
Published: 2021-02-22
Subjects: Cell and Developmental Biology, Developmental Biology, Ecology and Evolutionary Biology, Evolution, Life Sciences
Most animal species consist of two distinct sexes. At the morphological, physiological, and behavioural levels the differences between males and females are numerous and dramatic, yet at the genomic level they are often slight or absent. This disconnect is overcome because simple genetic differences or environmental signals are able to direct the sex-specific expression of a shared genome. A [...]
Fading opportunities for mitigating agriculture-environment trade-offs in a South American deforestation hotspot
Published: 2021-02-19
Subjects: Biodiversity, Life Sciences
Strong trade-offs between agriculture and the environment occur in deforestation frontiers, particularly in the world’s rapidly disappearing tropical and subtropical dry forests. Pathways to mitigate these trade-offs are often unclear, as well as how deforestation or different policies alter the option space of available pathways. Using a spatial optimization framework based on linear [...]
Text classification to streamline online wildlife trade analyses
Published: 2021-02-18
Subjects: Biodiversity, Life Sciences
1. Automated monitoring of websites that trade wildlife is increasingly necessary to inform conservation and biosecurity efforts. However, e-commerce and wildlife trading websites can contain a vast number of advertisements, an unknown proportion of which may be irrelevant to researchers and practitioners. Given that many of these advertisements have an unstructured text format, automated [...]
Acting in the Face of Evidentiary Ambiguity, Bias, and Absence Arising from Systematic Reviews in Applied Environmental Science
Published: 2021-02-18
Subjects: Life Sciences
Evidence-based decision-making often depends on some form of a synthesis of previous findings. There is growing recognition that systematic reviews, which incorporate a critical appraisal of evidence, are the gold standard synthesis method in applied environmental science. Yet, on a daily basis, environmental practitioners and decision-makers are forced to act even if the evidence base to guide [...]
Promoting equity in scientific recommendations for high seas governance
Published: 2021-02-14
Subjects: Biodiversity, Life Sciences
In the coming months, international negotiations under the 1982 United Nations Convention on the Law of the Sea (UNCLOS) will enter their fourth and final session to establish a legally binding agreement for the conservation and sustainable use of marine biodiversity in one of our largest global commons, areas beyond national jurisdiction (BBNJ). In this context, scientists have proposed [...]
Ecological stoichiometry as a foundation for omics-enabled biogeochemical models of soil organic matter decomposition
Published: 2021-02-13
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Coupled biogeochemical cycles drive ecosystem ecology by influencing individual-to-community scale behaviors; yet the development of process-based models that accurately capture these dynamics remains elusive. Soil organic matter (SOM) decomposition in particular is influenced by resource stoichiometry that dictates microbial nutrient acquisition (‘ecological stoichiometry’). Despite its basis in [...]
Collection and analysis of a global marine phytoplankton primary production dataset
Published: 2021-02-12
Subjects: Ecology and Evolutionary Biology, Life Sciences, Marine Biology, Other Ecology and Evolutionary Biology
Phytoplankton primary production is a key oceanographic process. It has intimate relationships with the marine food webs dynamics, the global carbon cycle and the Earth’s climate. The study of phytoplankton production on a global scale relies on indirect approaches due to the difficulties associated with field campaigns. On the other hand, modelling approaches require in situ data for both [...]