Preprints
Filtering by Subject: Ecology and Evolutionary Biology
The Defensive Repertoire of New World Coral Snakes: Evolution and Natural History
Published: 2026-08-21
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Evolution
The defensive repertoire of New World coral snakes is diverse, but its evolutionary history remains poorly understood. We compiled 280 records of 11 defensive behaviors across 85 species of Micrurus and one species of Micruroides from the literature and contributions by researchers, naturalists, and wildlife photographers. Fifty-seven records represented behaviors not previously documented for [...]
iPhone Lidar Can Accurately Capture Fine-Scale Understorey Vegetation Structure
Published: 2026-08-21
Subjects: Biodiversity, Ecology and Evolutionary Biology, Other Plant Sciences, Terrestrial and Aquatic Ecology
Complex vegetation structure increases ecosystem resilience, but fine-scale understorey vegetation is often overlooked in monitoring protocols despite subtle variation impacting overall diversity. iPhone lidar has placed cost effective and portable remote sensing technology in the pockets of researchers, farmers, practitioners, and citizens worldwide to conduct continuous monitoring and improve [...]
Conspecific Gamete Precedence in Speciation: History, Evidence, and a Research Roadmap
Published: 2026-08-21
Subjects: Ecology and Evolutionary Biology
Barriers to hybridization can act between gamete release and fertilisation. When an egg donor has simultaneous access to conspecific and heterospecific pollen or sperm, competitive interactions can bias fertilisation towards conspecific gametes, producing conspecific gamete precedence (CGP). Although such biases were first reported more than 250 years ago, CGP remains poorly integrated into the [...]
Linking movement to mortality: a framework for predicting anthropogenic mortality hotspots in wide-ranging animals
Published: 2026-08-21
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences
Human activities and their impacts are a major source of mortality for wide-ranging animals, yet conservation efforts often remain reactive because it is difficult to predict where mortality is most likely to occur. Approaches to understand and reduce wildlife mortality typically rely on coarse-scale associations between mortality events and landscape features, limiting their ability to identify [...]
Contextual evidence for categorising interactions and guiding their discovery
Published: 2026-08-20
Subjects: Ecology and Evolutionary Biology, Life Sciences, Research Methods in Life Sciences
Ecological interactions shape community dynamics and stability, yet many go unrecorded. Link prediction methods attempt to tackle incomplete knowledge, but predictions are only conjectures, and validating them all in the field is neither feasible nor desirable. Furthermore, interactions differ in the action needed for their detection. Validation therefore must be guided by ecological and [...]
Sleep elasticity: accessory, useful and vital components of a single state
Published: 2026-08-19
Subjects: Biology, Ecology and Evolutionary Biology, Evolution, Neuroscience and Neurobiology, Systems Biology
Sleep is universal, homeostatically defended and apparently costly, and for half a century this combination has been read as evidence of a vital, conserved function still awaiting identification. The search has not converged. Instead, it has accumulated a dozen candidate functions, each defensible but none commanding assent. I argue that the difficulty lies with the question rather than with the [...]
Non-native plants homogenize global urban flora
Published: 2026-08-19
Subjects: Ecology and Evolutionary Biology
Urban areas serve as hubs for non-native plant introductions, but the extent to which these introductions have homogenized city floras globally remains unexplored. We analyzed species inventories from 553 cities across six continents and show that non-native plants increase mean pairwise floristic similarity by ~50%, from a Jaccard index of 0.11 for native species alone to 0.16 when non-natives [...]
Wolf–Deer Camera-trap Detections Across Wisconsin’s Statewide Wolf Range (2018–2025): A Temporary Increase in Wolves Following Deer After the 2021 Wolf Harvest, Displacement Effects by Habitat Zone, and Avoidance of People Across Co-occurring Species
Published: 2026-08-19
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Life Sciences
Two prior analyses of wolf-enriched extracts of the Snapshot Wisconsin camera network — one county, then five northwestern counties — showed that gray wolves (Canis lupus) tended to arrive at cameras shortly after white-tailed deer (Odocoileus virginianus), that they arrived after antlered bucks more often than the bucks’ numbers would predict, and that deer returned to a site more slowly after a [...]
IUCN Red List Threatened Bird Classification from Citizen-Science Images using Fine-Tuned CNN Features and a Hierarchical Lightweight Classifier
Published: 2026-08-18
Subjects: Artificial Intelligence and Robotics, Biodiversity, Ecology and Evolutionary Biology, Ornithology
To prevent bird strikes at wind farms, an approaching protected bird must be identified so that the turbine can be halted before a collision. We present a bird-species classification module intended for that real-time, low-power edge setting: a hierarchical system assigning IUCN Red List categories to in-the-wild citizen-science bird images, combining a ResNet50 feature extractor fine-tuned on a [...]
Toward a standardized workflow for pre-processing large vegetation-plot databases
Published: 2026-08-17
Subjects: Bioinformatics, Botany, Ecology and Evolutionary Biology, Forest Sciences
Large vegetation-plot databases have opened unprecedented opportunities for investigating vegetation patterns and processes across large spatial and temporal scales. However, such databases are typically created by combining pre-existing smaller databases or datasets that often used different standards and protocols, leading to data inconsistencies (e.g., different taxonomy and nomenclature) and [...]
The knowledge landscape of jaguar science: rapid growth, thematic structure, and regional inequalities
Published: 2026-08-17
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Life Sciences
Understanding how scientific effort is distributed is essential for evaluating the evidence available to guide species conservation. We assessed the temporal, thematic, methodological, and spatial organization of jaguar (Panthera onca) research across the species’ range. Using 1,028 bibliographic records, we applied a metadata-based scope filter, defining a primary analytical corpus of 857 [...]
Density dependence buffers natural populations against multiple stressors
Published: 2026-08-14
Subjects: Ecology and Evolutionary Biology, Life Sciences
Predicting population persistence under global change requires understanding how populations buffer against interacting stresses. Gradual stresses, such as droughts, suppress individual performance, whereas abrupt stresses, such as harvesting, remove individuals from populations. Because these stresses interact through density-dependent responses of growth, reproduction and survival, predicting [...]
Plant sex chromosome evolution in the phylogenomic era
Published: 2026-08-13
Subjects: Ecology and Evolutionary Biology, Evolution, Genetics and Genomics, Life Sciences, Plant Sciences
Plants harbor a tremendous diversity of sexual systems, including various forms of chromosomal sex determination that have arisen repeatedly across major clades, especially in angiosperms. The causes and consequences of sex chromosome evolution are far-reaching, with implications for sexual system, mating system, and life history evolution, genome architecture, and speciation, extinction, and [...]
Lake Champlain fisheries and ecosystem in the context of the Laurentian Great Lakes: past research, current management issues, and future research priorities
Published: 2026-08-11
Subjects: Ecology and Evolutionary Biology, Life Sciences
Lake Champlain is a large lake bordered by New York, Vermont, and Quebec. This bi-national, multi-jurisdictional lake shares many management issues and challenges with the much larger bi-national Laurentian Great Lakes, including a history of commercial fisheries, species declines and extirpations, sport fisheries supported by stocking, and invasion of non-native species. The bathymetric [...]
Chromosomal speciation through holocentric lenses
Published: 2026-08-11
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences
Chromosomal rearrangements (CRs) can trigger speciation by acting as barriers to gene flow. Two main theoretical frameworks were developed on how they contribute to speciation: causing infertility in heterokaryotypes (hybrid dysfunction) or creating islands of divergence through recombination suppression. However, these theories were developed with monocentric chromosomes in mind. Species with [...]