Preprints
There are 3778 Preprints listed.
Canyoning simplifies benthic macroinvertebrate communities in Mediterranean canyons: evidence from Sierra y Cañones de Guara Natural Park
Published: 2026-09-28
Subjects: Life Sciences, Terrestrial and Aquatic Ecology
1. Recreational activities in freshwater ecosystems are increasing worldwide, yet their ecological consequences remain poorly understood. Canyoning is one of the most popular nature-based sports in Mediterranean rivers, but quantitative assessments of its effects on aquatic communities are scarce, particularly in protected areas where conservation and recreation coexist. Here, we evaluated how [...]
A synthesis of bird biodiversity studies in geographically isolated wetlands reveals research synergies and opportunities
Published: 2026-09-28
Subjects: Life Sciences
Geographically isolated wetlands represent integral foraging and breeding habitat for many bird species across the United States, yet few studies have attempted to synthesize existing research to quantify generalizable relationships between bird biodiversity and geographically isolated wetlands. We conduct a systematic review of bird biodiversity in geographically isolated wetlands of the [...]
Reconsidering interspecific co-occurrence of native and invasive plants in an anthropogenic riparian ecosystem
Published: 2026-09-28
Subjects: Ecology and Evolutionary Biology, Plant Sciences
Invasive non-native plants are considered mostly though negative interactions, but are increasingly recognized as potential contributors to ecosystem functioning. By modifying microhabitats, resource availability and species interactions, non-natives plants may reshape and maintain the living conditions of native plant communities. We conducted an observational field study to quantify the [...]
TaxonBodyMassML: Taxonomy-informed prediction of body mass using gradient-boosted trees
Published: 2026-09-28
Subjects: Life Sciences
1. Body mass is a key ecological trait governing metabolic rates, life-history characteristics, interaction strengths, and community structure and dynamics. Despite its centrality to ecology and ecological modelling, direct body mass measurements exist for only a small fraction of all scientifically described species. 2. We present TaxonBodyMassML, a machine-learning tool to predict the body [...]
Patterns of wind dispersal within a forest canopy: An epiphyte perspective
Published: 2026-09-28
Subjects: Life Sciences
Plant dispersal theory has largely been developed from a terrestrial perspective, in which interception by vegetation is considered a loss, and success is defined by arrival at suitable ground-level habitat. True epiphytes—non-parasitic plants structurally dependent on a host throughout their lives—represent a striking reversal of this framework: their diaspores must be intercepted by suitable [...]
On the Promise (and Practice) of Deep Comparative Methods: Expressivity, Limitations, and Design
Published: 2026-09-28
Subjects: Artificial Intelligence and Robotics, Biodiversity, Ecology and Evolutionary Biology, Evolution
Comparative biologists explain the diversity of organismal form and function by deciding which traits to measure and which evolutionary processes to model. These decisions make inference possible, but they also confine it to traits, relationships, and processes that can be specified a priori. Neural networks can expand this space, learning characters directly from complex observations and [...]
Building from biodiversity assessment to place-based conservation action across scales of information and governance.
Published: 2026-09-28
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Scientific assessments of biodiversity and ecosystem services are challenged by the need to examine systemic drivers of change while maintaining support in a polarized political climate. Recent US national policy shifts that reduce federal support for scientific assessments underscore the necessity of a broad-based, resilient, and scalable assessment framework with sustained engagement of [...]
Timelines of vegetation recovery following fire in a shrub-dominated Mediterranean-type ecosystem
Published: 2026-09-28
Subjects: Ecology and Evolutionary Biology
Fire is a natural disturbance in many Mediterranean-type ecosystems, but wildfires are increasing in frequency and severity in many places worldwide, including California. Vegetation recovery following wildfire is critical for landscape stability and foundational to resilience of many ecosystem processes in the years and decades that follow fire. While remote sensing tools are increasingly [...]
Aligning evidence and action: The Research-to-Decision (RED) Framework to address modern environmental and ecological challenges
Published: 2026-09-28
Subjects: Applied Statistics, Artificial Intelligence and Robotics, Biodiversity, Databases and Information Systems, Ecology and Evolutionary Biology, Environmental Health and Protection, Environmental Indicators and Impact Assessment, Environmental Monitoring, Longitudinal Data Analysis and Time Series, Models and Methods, Multivariate Analysis, Natural Resources and Conservation, Natural Resources Management and Policy, Statistical Methodology, Statistical Models
Ecological and biodiversity crises are intensifying amid rapid advances in sensing, computation, and artificial intelligence (AI). AI offers unprecedented capabilities to understand complex ecological systems, provided outputs are interpretable, applied responsibly, and evaluated by domain experts. When addressing key challenges, science-policy frictions arise through different requirements [...]
Disentangling the drivers of parasite occurrence in a native and a non-native small mammal across a land-use gradient
Published: 2026-09-25
Subjects: Ecology and Evolutionary Biology, Life Sciences, Parasitology
Land-use change can reorganize host--parasite systems by altering environmental conditions, host communities, and transmission pathways. Yet parasite occurrence remains difficult to predict as it is shaped simultaneously by the environment, host identity, individual host attributes, the within-host microbiome, and parasite biology. We integrated these components within a single framework for two [...]
Why nature cannot be replaced: the limits of substitution in biodiversity conservation
Published: 2026-09-25
Subjects: Biodiversity
Contemporary conservation governance increasingly relies on biodiversity offsetting and related instruments that seek to compensate ecological losses from development projects through metric-based equivalence and No Net Loss accounting. In their dominant policy form, these approaches treat biodiversity as substitutable: damage at one site is rendered acceptable if equivalent gains are generated [...]
Regional range restriction, not national endemism, predicts plant extinction risk: operationalising Conservation Imperatives for under-assessed tropical floras
Published: 2026-09-25
Subjects: Life Sciences
Abstract Aim: Tropical African flora is potentially threatened, yet species-level conservation priority-setting is rare in under-assessed floras. We tested whether range restriction drives extinction risk and operationalised the Conservation Imperatives at species level. Location: Rwanda, Albertine Rift biodiversity hotspot, eastern Africa. Methods: We applied this workflow to 367 IUCN-assessed [...]
We Have Never Been Hosts: Microbial Niche Weaving and the Evolution of Multicellular Life
Published: 2026-09-24
Subjects: Life Sciences
Microorganisms are commonly understood as associates of multicellular hosts: organisms that first exist as biological individuals and are subsequently colonized by microbial communities. Here, we challenge this temporal and ontological ordering by distinguishing microbial presence from microbial influence. Microbial activity can shape biological processes without persistent physical association, [...]
Why abundance-based indices of niche breadth are biased, and what can be done to improve them
Published: 2026-09-24
Subjects: Ecology and Evolutionary Biology, Population Biology
Niche breadth is a central concept in ecology, and species with narrow niche breadth are believed to be more sensitive to anthropogenic factors than species with broad niche breadth. A myriad of methods to assess niche breadth have been suggested, many of them reliant on estimates of relative abundance (e.g., across habitats). We show, using both simulations and empirical data, that due to [...]
Evolutionary potential of natal dispersal in multiple blue tit populations while accounting for spatial autocorrelation among relatives
Published: 2026-09-24
Subjects: Life Sciences
Natal dispersal is a key driver of ecological and evolutionary dynamics in populations. However, our understanding of genetic mechanisms underlying inter-individual variation in dispersal behaviour is still incomplete, despite their crucial role in the evolutionary potential and persistence of wild populations. Here, we investigate the genetic basis of natal dispersal distance in four blue tit [...]