There are 1093 Preprints listed.

Developing systems theory in soil agroecology: Incorporating heterogeneity and dynamic instability

Nicholas Medina, John Vandermeer

Published: 2023-03-21
Subjects: Agriculture, Applied Mathematics, Biogeochemistry, Biology, Dynamic Systems, Earth Sciences, Ecology and Evolutionary Biology, Life Sciences, Longitudinal Data Analysis and Time Series, Research Methods in Life Sciences, Soil Science, Sustainability

Ecosystem management is integral to the future of soils, yet anthropogenic drivers represent a key source of uncertainty in ecosystem models. First- and new-generation soil models formulate many soil pools using first-order decomposition, which tends to generate simpler yet numerous parameters. Systems or complexity theory, developed across various scientific and social fields, may help improve [...]

Bacterial Subcellular Architecture, Structural Epistasis, and Antibiotic Resistance

Fernando Baquero, Jose-Luis Martínez, Alvaro Sanchez, et al.

Published: 2023-03-21
Subjects: Life Sciences, Medicine and Health Sciences

Epistasis refers to how genetic interactions between some genetic loci affect phenotypes and fitness. In this study, we propose the concept “structural epistasis” to emphasize the role of the variable physical interactions between molecules located at particular spaces inside the bacterial cell in the emergence of novel phenotypes. The architecture of the bacterial cell (typically a [...]

Breaking down microbial hierarchies

Snorre Sulheim, Sara Mitri

Published: 2023-03-21
Subjects: Ecology and Evolutionary Biology, Life Sciences, Microbiology

Microbial communities that degrade natural polysaccharides are thought to have a hierarchical organization and one-way positive interactions from higher to lower trophic levels. Daniels et al. have recently shown that reciprocal interactions between trophic levels can occur and that these interactions change over the duration of a batch culture.

Allelopathy-selected microbiomes mitigate chemical inhibition of plant performance

Daniel Philip Revillini, Aaron S. David, Carolina Vigo, et al.

Published: 2023-03-19
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Other Plant Sciences, Plant Biology

Allelopathy is a common and important stressor that shapes plant communities and can alter soil microbiomes, yet little is known about the direct effects of allelochemical addition on bacterial and fungal communities or the potential for allelochemical-selected microbiomes to mediate plant performance responses, especially in habitats naturally structured by allelopathy. Here we present the first [...]

Fragmentation disrupts microbial effects on native plant community productivity

Kasey N Kiesewetter, Leydiana Otano, Michelle E Afkhami

Published: 2023-03-19
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences

1. Anthropogenic habitat fragmentation – the breaking up of natural landscapes – is a pervasive threat to biodiversity and ecosystem function worldwide. Fragmentation results in a mosaic of remnant native habitat patches embedded in human-modified habitat known as the “matrix”. By introducing novel environmental conditions in matrix habitats and reducing connectivity of native habitats, [...]

Partitioning variance in population growth for models with environmental and demographic stochasticity

Jonas Knape, Matthieu Paquet, Debora Arlt, et al.

Published: 2023-03-18
Subjects: Ecology and Evolutionary Biology

1. How demographic factors lead to variation or change in growth rates can be investigated using life table response experiments (LTRE) based on structured population models. Traditionally, LTREs focused on decomposing the asymptotic growth rate, but more recently decompositions of annual ‘realized’ growth rates have gained in popularity. 2. Realized LTREs have been used particularly to [...]

Spatial factors overcome seasonality in increasing the consumption of allochthonous food resources by fishes from tropical lotic ecosystems

Vitor Manuel Barros Ferreira, Bruno Eleres Soares, Juliana Silva Leal, et al.

Published: 2023-03-15
Subjects: Biodiversity, Other Ecology and Evolutionary Biology, Terrestrial and Aquatic Ecology

1. In lotic ecosystems, it is expected higher availability of allochthonous food resources during floods and rainfall events, which may yield a higher consumption of these resources by consumers. However, both the allochthonous input in aquatic ecosystems and seasonality in environmental conditions are locally dependent, thus dietary responses of freshwater consumers to seasonality should also be [...]

Biogeographical distributions of trickster animals

Shota Shibasaki, Ryosuke Nakadai, Yo Nakawake

Published: 2023-03-15
Subjects: Arts and Humanities, Ecology and Evolutionary Biology

Environments have facilitated diversification in human cultures, including folklore. Previous studies show that folklore may transmit folk-zoological knowledge about the local environment. However, it remains unclear whether and how environmental factors are related to animal distributions of folklore. By systematically and quantitatively analyzing large databases in both ecology and [...]

Forecasting rodent population dynamics and community transitions with dynamic nonlinear models

Nicholas Joshua Clark, SKM Ernest, Henry Senyondo, et al.

Published: 2023-03-13
Subjects: Desert Ecology, Ecology and Evolutionary Biology, Life Sciences, Multivariate Analysis, Population Biology, Statistical Methodology, Statistical Models, Statistics and Probability

Ecological communities are dynamic. These dynamics are influenced by many sources of variation, making it difficult to understand or predict future change. Biotic interactions, and other sources of multi-species dependence, are major contributors. But ecological prediction overwhelmingly focuses on models that treat individual species in isolation. Here, we model the relative importance of [...]

Prophage mediated control of higher order interactions - insights from systems approaches

Carolin Charlotte Wendling

Published: 2023-03-11
Subjects: Life Sciences

Prophages, latent viral elements residing in bacterial genomes impact bacterial ecology and evolution in diverse ways. Do these prophage-mediated effects extend beyond the prophage-bacterium relationship? Here, I summarize the latest advances exploring how the impact of prophages are transmitted through multiple levels with potential impacts on ecosystem stability and functioning. The diverse [...]

Temperature-dependant, developmental plasticity and its effects on Allen’s and James’ rule in endotherms

Joshua Kenneth Robertson Tabh, Andreas Nord

Published: 2023-03-07
Subjects: Comparative and Evolutionary Physiology, Integrative Biology, Life Sciences, Other Ecology and Evolutionary Biology

Ecogeographical rules, describing common trends in animal form across space and time, have provided key insights into the primary factors driving species diversity on our planet. Among the most well-known ecogeographical rules are Bergmann’s Rule and Allen’s rule, with each correlating ambient temperature to the size and shape of endotherms within a species. These two rules have recently [...]

Telomere length vary with sex, hatching order and year of birth in little owls, Athene noctua

François Criscuolo, Inès Fache, Bertrand Scaar, et al.

Published: 2023-03-06
Subjects: Ecology and Evolutionary Biology

Telomeres are non-coding DNA sequences located at the end of linear chromosomes, protecting genome integrity. In numerous taxa, telomeres shorten with age and telomere length (TL) is positively correlated with longevity. Moreover, TL is also affected by environmental stressors and/or resource-demanding situations particularly during early-life. Thus, TL has been used as a physiological marker of [...]

A diversity of fungal pathways contribute to improved soil carbon stability and storage

Emiko Stuart, Laura Castañeda-Gómez, Wolfram Buss, et al.

Published: 2023-03-03
Subjects: Agricultural Science, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Terrestrial and Aquatic Ecology

While various fungi could facilitate soil C storage and climate change mitigation via carbon (C) cycling, standard soil C tests that measure only bulk soil C cannot disentangle mechanisms underpinning fungal influences and so far research has largely focused on mycorrhizal fungi. Here, we assessed the soil C storage potential of 12 non-mycorrhizal fungi, selected from a wide pool based on traits [...]

Experimental evidence of litter quality and soil moisture rather than temperature as the key driver of litter decomposition along a high-latitude elevational gradient

Isla H. Myers-Smith, Haydn J.D. Thomas, Eleanor R. Walker

Published: 2023-03-03
Subjects: Life Sciences

High-latitude soils contain up to 60% of the world’s carbon stocks, but are vulnerable to carbon loss as climate change alters temperature and precipitation, litter quality, and soil biota. Tundra soils are thought to be particularly sensitive to warming due to accelerated permafrost thaw, but quantifying the response of decomposition to changing soil moisture remains a challenge. Understanding [...]

Larval cannibalism in Phyllobates poison frogs

Roberto Marquez

Published: 2023-03-02
Subjects: Biology, Integrative Biology, Life Sciences

Cannibalistic behaviour between tadpoles of dendrobatoid poison frogs has been observed in several species with complex parental care dynamics, leading to the idea that it may have played a role in the evolution of parental care. However, the existence or characteristics of this behaviour remain largely unknown beyond a handful of well-studied species. I report direct and indirect observations of [...]


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