Preprints
There are 3237 Preprints listed.
A Game-Theoretic and Dynamical-Systems Framework for Anti-Poaching Resource Allocation: A Case Study of Etosha National Park
Published: 2026-05-12
Subjects: Biodiversity, Natural Resources and Conservation, Population Biology
Wildlife poaching threatens biodiversity across sub-Saharan Africa, and is especially acute for critically endangered species such as the black rhinoceros (Diceros bicornis). Etosha National Park, Namibia (22,935 km²), is patrolled by approximately 295 anti-poaching rangers—fewer than 0.02 per km²—posing two interlinked operational questions: where should a limited workforce be placed to maximise [...]
Livestock subsidise tiger diets in a central Indian corridor: implications for human-wildlife conflict management and conservation planning
Published: 2026-05-12
Subjects: Life Sciences
Large carnivores, like tigers, maintain a balance within their respective ecosystem and play a critical role. However, due to their life history needs and extensive overlap with humans, they face significant threats across their distribution. These threats become severe when they inhabit non-protected areas like corridors and kill livestock. In this study, the food habits of tiger were assessed [...]
An epibiotic association between burrowing and sessile bivalves on the Amazon continental shelf: implications for ecological facilitation in sediment-dominated environments
Published: 2026-05-12
Subjects: Life Sciences, Terrestrial and Aquatic Ecology
From the perspective of ecological facilitation theory, we report an epibiotic association between two mollusk species with contrasting lifestyles, Chama macerophylla Gmelin, 1791 (sessile) and Tucetona pectinata (Gmelin, 1791) (burrowing), on the Amazon continental margin. Specimens were collected using a Van Veen dredge near the shelf break and in the vicinity of AP3 blocks recently offered for [...]
OdoCocktail-Japan: Primer sets to enrich environmental DNA of Japanese Odonata species
Published: 2026-05-12
Subjects: Biodiversity, Entomology, Terrestrial and Aquatic Ecology
Monitoring is essential to conserve and recover biodiversity. Environmental DNA (eDNA)-based metabarcoding analysis has been recognized as a cost-effective and efficient method to monitor species, but it still has limitations, such as insufficient reference databases and lack of primer sets suitable to detect target species. As biological indicators of freshwater habitats, Odonata species have [...]
Cold treatment benefits Mediterranean orchid seedlings cultivated in vitro
Published: 2026-05-11
Subjects: Biology, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology, Plant Biology, Plant Sciences
1. Effective ex situ propagation is increasingly critical for the conservation and restoration of terrestrial orchids threatened by habitat loss, over-collection and climate change. However, large-scale propagation remains constrained by developmental bottlenecks during the transition from protocorms to established plantlets with storage organs. Cold exposure is often recommended to improve [...]
Hybridization in Animal Evolution
Published: 2026-05-11
Subjects: Ecology and Evolutionary Biology, Life Sciences
In the past two decades, it has become clear that hybridization is so common in animal species as to be an almost universal feature of their evolutionary histories. Remnants of both ancient and contemporary hybridization events are present in the genomes of modern species, but their consequences are still not completely understood. In this review, we synthesize what is known about the [...]
Catalyzing transformative change for climate and biodiversity finance within COP policy discourses
Published: 2026-05-11
Subjects: Environmental Policy, Environmental Studies, Other Political Science
Recent outcomes of the Conferences of the Parties (COP) to the UNFCCC and CBD emphasize the need for transformative change to meet global climate and biodiversity targets. Yet climate and biodiversity finance discourses remains dominated by efforts to close ‘funding gaps’, with comparatively little attention to systemic drivers of climate change, nature loss, and social injustice. Here we analyze [...]
Sexually antagonistic selection: a review of the theory and its implications
Published: 2026-05-08
Subjects: Ecology and Evolutionary Biology, Evolution, Population Biology
Sexually antagonistic selection arises when females and males have different fitness optima for traits with a shared genetic basis, so that the same alleles are favoured in one sex but disfavoured in the other. It has been implicated in a wide range of ecological and evolutionary processes, from the maintenance of a sex load to the evolution of sex chromosomes. Mathematical models have long been [...]
Robustness of pesticide and other environmental stressors as key drivers of stream macroinvertebrates in small agricultural catchments
Published: 2026-05-08
Subjects: Agriculture, Biodiversity, Life Sciences
Robustness of multiple stressor rankings is essential for credible ecotoxicological assessments and policy guidance. A widely cited study of 101 small agricultural streams across Germany identified pesticide mixtures as the dominant stressor for stream macroinvertebrates, but its analytical robustness has since been questioned. Using a fully reproducible workflow, we reanalysed this dataset to [...]
Optimizing sampling and monitoring of species interactions within Biodiversity Observation Networks
Published: 2026-05-08
Subjects: Biodiversity, Ecology and Evolutionary Biology
Optimal monitoring strategies should be designed to efficiently monitor all essential facets of biodiversity. Yet, species interactions are often overlooked in monitoring designs compared to spatial coverage and species richness, partly due to the inherent difficulty of sampling and monitoring interactions compared to species distributions. Here, we used simulations to test the efficiency of [...]
The social environment has little impact on inbreeding depression in a social mammal
Published: 2026-05-08
Subjects: Life Sciences
Inbreeding depression describes the decline in fitness caused by breeding between relatives and is now known to be widespread in natural populations. Yet, its relative strength across different fitness components and its sensitivity to social and demographic environments are poorly understood. Using nearly 30 years of life-history, behavioural, pedigree and genomic data from a wild population of [...]
The presence of generalist plants in urban greenspaces predicts pollinator diversity
Published: 2026-05-08
Subjects: Life Sciences
Urban greenspaces are increasingly important for pollinator conservation, yet it remains unclear whether pollinator diversity is better predicted by overall plant richness or by the presence of particular plant species with central roles in the pollination network, referred to as hub species. Using community science observations from 39 urban greenspaces in Broward County, Florida, we constructed [...]
From repeated baseline HRV monitoring to activity-and-recovery assessment in a trained dolphin: a preliminary protocol report
Published: 2026-05-08
Subjects: Life Sciences
Heart rate variability (HRV) may provide useful physiological information for welfare assessment in managed dolphins. Previous preliminary work proposed HRV analysis as a potential tool for evaluating welfare-related physiological states in dolphins. As a further step, this preliminary protocol report documents the development and initial implementation of a baseline-informed [...]
Invasiveness reshapes the historical pattern of carp trait evolution
Published: 2026-05-07
Subjects: Ecology and Evolutionary Biology, Life Sciences
Human-mediated invasions are increasingly recognised as contemporary ecological disturbances with profound impacts on microevolutionary processes. However, whether such impacts extend beyond microevolutionary change to alter long-term evolutionary trajectories across lineages remains poorly explored. Using a global phylogenetic analysis of nearly 1,400 carp species (freshwater fishes of the [...]
Identifying knowledge gaps on simultaneous above- and belowground organism responses to global change
Published: 2026-05-07
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Global change affects all terrestrial organisms regardless if they live above or below the ground. Even though they are strongly linked by various direct and indirect interactions, organisms can respond very differently to global change stressors, due to different features of above- and belowground compartments. Many different organism groups have shown declines in diversity, abundance or biomass [...]