Albaladejo Robles, G. | bioRxiv Science

bioRxiv2026

Towards the automation of Species Distribution Modelling: The AutoMaxEnt routine

Species distribution models are widely used for the evaluation and analysis of species spatial distributions and responses to environmental changes. Due to this, there's a wide diversity of tools and algorithms to perform these types of analyses. However, despite being a mature field of study, SDM still requires a large amount of research intervention and decision-making to produce reliable models. This is a natural consequence of each species unique response to environmental factors, but in practice it hinders the potential of SDMs to be used effectively and with confidence across large sets of species. Here we present the AutoMaxEnt repository, a collection of functions and tools for the automation of maximum entropy species distribution models. AutoMaxEnt offers a flexible environment to model species distribution models, automating most of the data pre-processing and preparation and giving the user the possibility of exploring multiple model scenarios automatically or with control over how those scenarios are generated. AutoMaxent offers model fit control, multiple background points generation algorithms, automatic model and variable selection, and study area configuration, among other parameters. AutoMaxEnt allows for the automation of model fitting, evaluation and model selection across different species, study areas and time periods.

ecology↗

bioRxiv2023

Interspecific relationships in a suboptimal habitat, an unexpected ally for the survival of the threatened Tenerife speckled lizard (Gallotia intermedia).

Anthropogenic-driven environmental changes are pushing species to the limits of their habitats. More often species are restricted to relic or suboptimal habitats that present the minimum requirements to sustain species populations. In this scenario of accelerated environmental change and biodiversity loss, is fundamental to understand why species can survive in such suboptimal conditions. We conduct an isotopic trophic analysis along with a behavioural experiment to show how novel ecological interactions allow an endangered species to maintain stable populations in suboptimal habitats. We show how the Tenerife speckled lizard (Gallotia intermedia), a critically endangered endemic reptile from Tenerife Island (Canary Islands), can maintain stable populations in relic habitats thanks to its interactions with the yellow-legged gull (Larus michahellis) colony. A stable isotope analysis revealed that G. intermedia relies on marine subsidies for its diet and that the foraging area of this reptile is likely to be restricted to the limits of L. michahellis breeding colony. Furthermore, an antipredator behaviour analysis showed that L. michahellis displayed a strong anti-predator or mobbing response against cats, one of the main threats for G. intermedia, thus potentially providing some protection to the reptiles inhabiting the seabird colony. Our results show how unusual and poorly studied biotic interactions can provide valuable resources and conditions for the conservation of a critically endangered species inhabiting a suboptimal or relict habitat.

ecology↗