Preprints
Filtering by Subject: Life Sciences
Marine holobionts: a model arena for host–microbe biology, from ecosystem function to biotechnology
Published: 2026-08-14
Subjects: Life Sciences
Microbial symbioses are the operating system of marine biology. Nearly every macroscopic organism in the ocean exists as a holobiont, the consortium composed of a eukaryotic host and its bacterial, archaeal, microeukaryotic and viral partners. Marine holobionts span a broader range of the metazoan tree of life than likely any other ecological setting on the planet. This breadth makes the marine [...]
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 [...]
How ecology can trap evolution under climate change
Published: 2026-08-14
Subjects: Life Sciences
Ecological responses to climate change, including plasticity, behaviour, demography, and interactions, can actively trap evolutionary trajectories, not simply facilitate or impede adaptation. Despite growing interest in eco-evolutionary dynamics under climate change, we lack a framework for predicting when ecological change reshapes evolutionary responses. Here, we propose three modes of [...]
Neuroactive pollution alters shoaling in fish, but group phenotype matters
Published: 2026-08-14
Subjects: Life Sciences
Collective behavior governs how animal groups evade predators, forage, navigate, and share information. Yet it is rarely the focus of research on human-induced environmental change, particularly in the case of chemical pollution. Here, we show that exposure to the common neuroactive pollutant temazepam disrupts shoaling dynamics in fish (Poecilia reticulata), with effects shaped by group [...]
BioShifts v2 and BioShiftR: tools for navigating and analysing species range shift data
Published: 2026-08-14
Subjects: Life Sciences
Reframing marine host-microbe symbioses: from taxonomic inventories to functional convergence
Published: 2026-08-14
Subjects: Life Sciences
In October 2025, the Trends in Host-Microbe Symbioses Symposium at the University of Padova (Italy) brought together a global community of researchers, with the aim of taking stock of the current trajectory of marine host-microbiome research. Integrating perspectives from ecology, evolution, biogeochemistry, and biotechnology, the symposium documented a clear transition from descriptive surveys [...]
Alignment dynamics: how environmental restoration reshapes disease risk
Published: 2026-08-14
Subjects: Life Sciences
Ecological change can generate variable infectious disease outcomes even when it produces similar shifts in biodiversity, habitat structure, or pathogen hazard. Existing disease-ecology frameworks identify the components and pathways governing transmission, but less explicitly formalise how their relative timing and spatial organisation determine when transmission opportunities emerge. We argue [...]
Voluntary wheel use across animal taxa: motivation, enrichment, stereotypy and ethological interpretation
Published: 2026-08-14
Subjects: Life Sciences, Social and Behavioral Sciences
Exercise wheels are simple devices for recording animal movement, but they elicit surprisingly complex behaviours. In laboratory rodents, running wheels are key for studying voluntary exercise, circadian rhythms, motivation, energy balance, stress physiology and brain plasticity. Outside rodents, wheel-like devices have also been provided to rabbits, cats, squirrels, reptiles and invertebrates. [...]
How closed is “closed”? Ambiguity in British Columbia’s Closed Containment aquaculture regulations
Published: 2026-08-14
Subjects: Animal Sciences, Aquaculture and Fisheries Life Sciences, Life Sciences, Zoology
We examine disease-transmission risks to wild salmon associated with containment technologies proposed in 2025 under British Columbia’s transition away from open-net pen aquaculture. To ensure consistent terminology, and to avoid the mischaracterization of marine “semi-closed” flow-through systems as “closed containment,” we clarify categories of aquaculture production technologies and compare [...]
Plant sex chromosome evolution in the phylogenomic era
Published: 2026-08-14
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 [...]
Reproduction is more sensitive to warming than adult lifespan across invertebrates
Published: 2026-08-11
Subjects: Animal Sciences, Biodiversity, Entomology, Life Sciences, Population Biology, Terrestrial and Aquatic Ecology
Studies estimating the effect of temperature on wild animal populations typically focus on survival as a proxy for population health. However, high and low temperatures can also negatively influence animal reproduction, and recent work suggests that the thermal sensitivity of reproduction is more important for population persistence that the thermal sensitivity of survival in some species groups. [...]
The life cycle of the tapeworm Dibothriocephalus latus in Switzerland: what we know, what we miss, and how it is sustained
Published: 2026-08-11
Subjects: Life Sciences
Dibothriocephalus latus is a broad fish tapeworm with a complex life cycle that requires three host stages - copepods, fish, and humans. Over the last 25 years, the prevalence of D. latus has noticeably declined in many parts of Europe, with the exception of the Alpine region. Recent studies have shown that D. latus is prevalent in fish from sub-alpine lakes, the second intermediate host, which [...]
Revisiting Taylor's law, rediscovering Smith's law: A dual framework for scaling heterogeneity
Published: 2026-08-11
Subjects: Life Sciences, Physical Sciences and Mathematics
Taylor's (1961) power law (TPL)—variance scales with mean density—originated in agricultural entomology but now spans the natural and social sciences and even the humanities. Cited over 8,000 times and featured in Nature for decades, its reach far exceeds its ecological origins. Yet TPL has been dormant in Nature for the past two decades, though it remains active in PNAS. Smith's (1938) law [...]
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 [...]
Ecological Patterns in Mammalian Vocal Frequencies: Evidence Across Body Sizes and Habitats
Published: 2026-08-11
Subjects: Life Sciences, Physical Sciences and Mathematics, Social and Behavioral Sciences
Vocalisations in mammals are an important sensory modality that is used for various purposes in communication, courtship, territorial display, navigation, prey detection, predator avoidance, reproduction, and social coordination. These various call functions are differentiated from each other through certain properties. Call spectral properties are influenced by anatomical constraints, especially [...]