Skip to main content

Preprints

There are 2981 Preprints listed.

Tapping into symbiosis to advance human microbiome research

Gina R Lewin, Lily Khadempour

Published: 2026-02-25
Subjects: Bacteriology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Other Microbiology, Pathogenic Microbiology

In human microbiome research, the term commensal is often used to describe organisms that benefit their hosts. In ecology, where the term originates, a commensal organism has no impact on its host, whereas a mutualist organism benefits its host. While others have recognized this discrepancy in terminology use, old habits are hard to break, and the human microbiome community has continued in this [...]

A new conceptual framework for host-microbe symbiosis

Lily Khadempour

Published: 2026-02-25
Subjects: Ecology and Evolutionary Biology, Life Sciences

Host-microbe relationships are studied across biological disciplines, with different but related discipline-specific conceptual frameworks arising from each of them. Without a unified framework that can be applied across all symbioses, we cannot do the interdisciplinary work necessary to understand the underlying rules that govern symbiosis. Here I present a new conceptual framework for [...]

A comparison of methods to assess selective disappearance and quantify ageing

Krish Sanghvi, Edward Richard Ivimey-Cook, Sandra Bouwhuis, et al.

Published: 2026-02-25
Subjects: Ecology and Evolutionary Biology, Research Methods in Life Sciences

1. Age-dependent change in traits at the population-level level can diverge from the within-individual ageing trajectory due to selective disappearance, the biased removal or death of individuals with certain phenotypes. 2. Commonly used methods to assess, and account for, selective disappearance have been developed for relatively simple settings. As such, we currently lack a clear understanding [...]

Stronger Evidence for Trait–Environment Association by Pre-processing of Abundance Tables

Cajo ter Braak

Published: 2026-02-25
Subjects: Life Sciences

Understanding trait–environment relationships is central to predicting community responses to environmental change, yet statistical evidence for such relationships is often weak in observational datasets. Here, I introduce an N2-processing method for abundance tables, grounded in the observation that the precision of community weighted means (CWMs) and species niche centroids (SNCs) is [...]

High-Resolution Coastal Blue Carbon Site Intelligence: A Multi-Attribute Geospatial Pipeline for National-Scale Mangrove Assessment

Jayson Gutierrez

Published: 2026-02-25
Subjects: Biodiversity, Bioinformatics, Life Sciences, Systems Biology

The voluntary blue carbon market is severely bottlenecked by outdated methodologies that apply broad, coast-level carbon averages across low-resolution spatial units, systematically failing to account for micro-site ecological realities and critical socio-political constraints. To resolve this structural deficit, this paper introduces the High-Resolution Geographically-Explicit Blue Carbon [...]

Scalable Automated Video Labeling for Early Wildfire Smoke Detection with Fast-Then-Precise Two-Stage Inference

Srikantnag Angondalli Nagaraja, Imre Bartos, Chang Zhao

Published: 2026-02-25
Subjects: Computational Engineering

Early wildfire response depends on detecting the first faint appearance of smoke while maintaining low false-alarm rates across diverse cameras, lighting conditions, and environments. A central barrier to progress is the lack of scalable, reliable supervision for subtle early-stage smoke plumes, which makes models brittle under real-world domain shift. We address this challenge by introducing a [...]

Fitness costs of environmentally relevant concentrations of pharmaceuticals and personal care products in freshwater fauna: a systematic review and meta-analysis

Anita Tarandek, Sandra Hudina, Marina Veseli, et al.

Published: 2026-02-24
Subjects: Ecology and Evolutionary Biology, Environmental Health Life Sciences, Terrestrial and Aquatic Ecology

Pharmaceuticals and personal care products (PPCPs) are now ubiquitous in freshwater ecosystems, entering water bodies through widespread use and incomplete removal during wastewater treatment. These compounds include psychoactive substances, antibiotics, anti-inflammatory drugs, hormones, chemotherapeutic drugs, fragrances, preservatives, UV filters, plasticizers and others. Although many studies [...]

The Global Lakes Explorer: A basin-to-global scale data visualisation application for the assessment of nutrient emissions to lakes

Elise Gallois, Philip Taylor, Will J Brownlie, et al.

Published: 2026-02-24
Subjects: Computer Sciences, Earth Sciences, Environmental Sciences, Life Sciences, Physical Sciences and Mathematics

Phosphorus and nitrogen are critical plant nutrients, essential for fertiliser production and global food security. However, poor management across the anthropogenic nutrient cycles leads to losses associated with pollution of water bodies, driving eutrophication, biodiversity loss, and methane emissions. Addressing these interconnected challenges requires a sustainable, integral, and where [...]

Notes on the taxonomy of the Cistanthe philhershkovitziana Hershk. species complex (C. sect. Cistanthe; Montiaceae)

Mark Alan Hershkovitz

Published: 2026-02-24
Subjects: Biodiversity

The Cistanthe philhershkovitziana Hershk. species complex (C. sect. Cistanthe; Montiaceae) here is informally circumscribed to include four named species, its namesake plus C. behacheliana Hershk., C. gbifiana Hershk., and C. reshetiana Hershk. The species occur in coastal Chile in the littoral and adjacent riparian zones, coastal plains, and coastal range matorral, extending some 600 km in [...]

Anecdote: When courtship blurs: a case of male-directed sexual signaling in house crickets (Acheta domesticus)

M. A. Sekhar

Published: 2026-02-24
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology

Same-sex sexual behaviour has been reported across diverse animal taxa and is increasingly understood as a flexible outcome of sexual signaling rather than an evolutionary anomaly. In insects, such behaviours are often temporary, context dependent, and expressed alongside opposite-sex courtship. This pattern has led to increasing emphasis on condition-dependent mating filters, defined as how [...]

BABAPPAΩ: Diagnosing the Identifiability of Episodic Selection under Branch–Site Evolution Using Likelihood-Free Neural Inference

Krishnendu Sinha

Published: 2026-02-24
Subjects: Bioinformatics, Life Sciences

Episodic positive selection acting on specific evolutionary lineages is a longstanding yet intrinsically difficult target of molecular inference. Classical branch–site methods formulate this problem as hypothesis testing under explicit codon substitution models, implicitly assuming that episodic selection is statistically identifiable from finite alignments. Under biologically realistic [...]

A Niche in the Machine: The Promise of AI Foundation Models for Species Distribution Modeling

Russell Dinnage, Dan L. Warren

Published: 2026-02-24
Subjects: Ecology and Evolutionary Biology, Life Sciences

Species distribution models (SDM) are fundamental tools for conservation, yet methodological progress has stalled. Despite two decades of refinement, traditional approaches – MaxEnt, boosted regression trees, random forests – have approached a performance ceiling, and deep learning has failed to break through on species distribution data. TabPFN, a foundation model that learns to perform Bayesian [...]

Global Patterns Predict Local Biodiversity Shifts in a Climate Change Hotspot

Jake Lawlor, Amelia Hesketh, Julien Beaulieu, et al.

Published: 2026-02-23
Subjects: Life Sciences

Climate change is redistributing life on Earth, and global-scale biogeographical patterns can inform expectations for local ecological responses. As thermal envelopes shift towards higher absolute latitudes and deeper depths in the ocean, fixed locations are experiencing changes in their niche space, driving changes in abundance, occurrence, and community composition. Here, we examine intertidal [...]

A new effect size for meta-analysis of magnitude: lnM

Shinichi Nakagawa, Ayumi Mizuno, Coralie Williams, et al.

Published: 2026-02-23
Subjects: Ecology and Evolutionary Biology, Life Sciences, Statistics and Probability

Meta-analyses in ecology and evolution often consider the magnitude of differences between groups rather than their direction. Yet, a common practice is to coerce signed effects (e.g., d and response ratio) into magnitudes by taking absolute values. This transformation induces strong upward bias and non-normal (Gaussian) sampling distributions, violating the assumptions of standard meta-analytic [...]

Machine-learning models of coral cover and life histories reveal that climate refugia for coral reefs persist into 2050

Kyle J A Zawada, Emily Darling, Stacy D Jupiter, et al.

Published: 2026-02-23
Subjects: Marine Biology

Climate change is accelerating the decline of coral reefs, yet some locations may retain conditions that support persistence under future warming. We compiled 45,091 coral field observations (1960–2025) and 42 climate, biophysical, and human-pressure predictors to train machine-learning ensembles that estimate coral cover in 2020 and 2050, and life-history composition in 2020, across a global [...]

search

You can search by:

  • Title
  • Keywords
  • Author Name
  • Author Affiliation