Preprints
There are 1954 Preprints listed.
Filosofía Fungi
Published: 2024-10-16
Subjects: Arts and Humanities, Life Sciences
Muchos conceptos en ecología y evolución se han construido en base a observaciones zoológicas y, en menor medida, botánicas, mientras que una visión fúngica en estas áreas es prácticamente inexistente. Mucho menos se han indagado aspectos de la filosofía de la biología en base a los hongos. Sin embargo, en este artículo mostramos que dadas sus características particulares, el Reino Fungi [...]
The Fish Challenge to Vertebrate Cognitive Evolution
Published: 2024-10-16
Subjects: Life Sciences
There is tremendous taxonomic variation in the size, shape, and structure of vertebrate brains. While many studies aim at identifying the ecological factors (social and environmental) that explain brain size variation within taxa, a more fundamental divide exists between endotherm and ectotherm vertebrates. Ectotherms have ten times smaller brains than endotherms. The existing hypotheses cannot [...]
Cooperation, status, and altruism in a mixed society of Amazonian parrots
Published: 2024-10-16
Subjects: Life Sciences, Social and Behavioral Sciences
Parrots are a highly intelligent taxon whose complex behaviors in wild societies require description. Here we observed 12 species of parrots, macaws, and parakeets in mixed flocks foraging on exposed cliffs in southeast Perú. For each species, we developed a single bootstrapped index of sociality from 9 derived metrics of abundance, chronology, functional roles, and agonistic interactions. This [...]
Towards repeated clear-cutting of boreal forests - a tipping point for biodiversity?
Published: 2024-10-15
Subjects: Life Sciences
Boreal forests are important carbon sinks and host a diverse array of species that provide important 14 ecosystem functions. Boreal forests have a long history of intensive forestry, in which even-aged 15 management with clear-cutting has been the dominating harvesting practice for the past 50–80 16 years. As a second cycle of clear-cutting is emerging, there is an urgent need to review the [...]
Land use change models that integrate quantitative and qualitative approaches better explain deforestation patterns in Amazonian protected areas
Published: 2024-10-14
Subjects: Ecology and Evolutionary Biology, Environmental Studies
Agricultural frontiers in the Amazon Basin – many of which overlap with protected areas – experience rapid forest conversion to agriculture and pasture, threatening ecological health and globally significant ecosystem services. Effective responses to protected area deforestation require understanding the socio-environmental factors that increase the likelihood of forest conversion, which may be [...]
Fluctuating environments favour cooperation among non-kin in birds
Published: 2024-10-12
Subjects: Ecology and Evolutionary Biology, Life Sciences
Cooperative groups are highly variable in relatedness and size, but whether this influences the environments where species live remains unclear. We test the prediction that cooperation among nonkin occurs in extreme environments where the mutual benefits of helping are high. This contrasts to family groups where high relatedness reduces the direct benefits required for helping to be favoured, [...]
Revisiting Adaptive Introgression at the HLA Genes in Lithuanian Genomes with Machine Learning
Published: 2024-10-12
Subjects: Life Sciences
Narrow roads to Fern Land: revisiting and re-analysing the paradox of sexual reproduction
Published: 2024-10-12
Subjects: Life Sciences
Some major thought on the evolutionary maintenance of sexual reproduction is revisited. This leads to a new perspective about the role of complex life cycles for the maintenance of sex. And it leads to a new comparison of organisms with different life cycles. Organisms like strawberries propagate contrary to what would be adaptive under red-queen selection from micro-parasites. Their recombinant [...]
Inbreeding and adaptation to captivity depress the response to stress
Published: 2024-10-12
Subjects: Life Sciences
The success of reintroductions using captive-bred populations of wild species is potentially impacted by adaptations to non-natural captive environments. Little research has been done into how physiological traits change from wild to captive populations. We do not yet understand how glucocorticoid secretion patterns, a critical aspect of the stress response and other underlying life-history [...]
Handle with care! Morphology of spines and milking practices in venomous fishes
Published: 2024-10-12
Subjects: Life Sciences
Venomous fish have independently evolved venom-delivery systems multiple times throughout their evolution. Despite the remarkable convergence of such structures, a large variety in venom-delivery structures morphology does occur across species. This review is aimed at delving into species’ peculiarities, exploring the diversity of venom glands and the potential ecological roles in relation to [...]
Background nutrient concentration determines phytoplankton bloom response to marine heatwaves
Published: 2024-10-12
Subjects: Physical Sciences and Mathematics
Ocean temperature extreme events such as marine heatwaves are expected to intensify in coming decades due to anthropogenic global warming. Reported ecological and economic impacts of marine heatwaves include coral bleaching, local extinction of mangrove and kelp forests, and elevated mortalities of invertebrates, fishes, seabirds, and marine mammals. In contrast, little is known about the impacts [...]
Offset or not: guidance on accounting for sampling effort in generalized linear models
Published: 2024-10-08
Subjects: Life Sciences
1. Observed data are often dependent on a measure of sampling effort, such as counts measured per unit area. A common tool to account for differences in effort is the ‘offset term’ in a generalized linear model, which allows for a fixed proportional relationship between effort and the response variable. However, there is limited detailed guidance on the application of offsets and transformations [...]
Local knowledge enhances the sustainability of interconnected fisheries
Published: 2024-10-08
Subjects: Agricultural and Resource Economics, Ecology and Evolutionary Biology, Environmental Studies, Life Sciences, Social and Behavioral Sciences
Global demand for natural resources challenges the sustainability of small-scale fisheries. Fisheries Co-Management (FCM), where management is shared between the government and locals, is crucial for maintaining viable fish populations while mitigating market pressures and illegal fishing. Using a data-informed model applied to a fish metapopulation network, we contrasted the effects of various [...]
Wildfire exposure and health outcomes: An umbrella review of systematic reviews and meta-analyses
Published: 2024-10-08
Subjects: Life Sciences, Medicine and Health Sciences, Social and Behavioral Sciences
Introduction: Wildfires are a growing concern due to their significant impact on wildlife, air quality, and health, and are increasing under climate change. Although several systematic reviews have explored the relationship between wildfire smoke and human health outcomes, a comprehensive overview of the overall epidemiological evidence remains needed. Thus, this umbrella review aimed to [...]
The Definition of Individual Biological Fitness
Published: 2024-10-08
Subjects: Life Sciences
Fitness is one of the central concepts in biology. Despite this, a precise definition of an individual's fitness remains elusive. Typically, 'biological fitness' is understood as the relative selective advantage of different genetic alleles. In this manuscript, we present a rigorous mathematical definition of individual fitness. This framework addresses an unjustifiable gap in evolutionary [...]