Preprints
There are 2377 Preprints listed.
Evolutionary rescue by aneuploidy in tumors exposed to anti-cancer drugs
Published: 2024-07-31
Subjects: Ecology and Evolutionary Biology, Evolution, Genetics, Life Sciences
Evolutionary rescue happens when a population survives a sudden environmental change that initially causes the population to decline toward extinction. A prime example of evolutionary rescue is the ability of cancer to survive exposure to treatment. One evolutionary mechanism by which a population of cancer cells can adapt to chemotherapy is aneuploidy. Aneuploid cancer cells can be fitter in an [...]
The Conguillío Statement on the values and responsibilities of ecologists
Published: 2024-07-31
Subjects: Life Sciences
Amid global environmental crises threatening the survival of many species, including our own, a diverse group of scientists from 15 countries and members of 16 professional and academic societies, concerned with the current global environmental crisis met in February 2024 to address the urgent need to reflect on, and identify, our core values and responsibilities as individual professionals and [...]
Seasonal Migrants and Traditional Ecological Knowledge in a Region of Risk: The Pulse Seine Fisheries in Limfjorden, Denmark, c. 1740-1860
Published: 2024-07-31
Subjects: Aquaculture and Fisheries Life Sciences, Arts and Humanities, Biodiversity, Economic History, Environmental Studies, Marine Biology, Other Arts and Humanities, Terrestrial and Aquatic Ecology
This article presents the commercial scale and organization of the Danish pulse seine eel fishery in the Limfjord before the advent of modern offshore fisheries. Partly, for environmental concerns, the pulse seine fishery was tightly regulated, with every seine having to be checked and certified by the local district bailiffs. Here, we present the first in-depth analysis of all preserved [...]
Ongoing collapse of avifauna in temperate oceanic islands close to the mainland in the Anthropocene
Published: 2024-07-30
Subjects: Animal Sciences, Biodiversity, Ecology and Evolutionary Biology, Life Sciences
1. Oceanic island ecosystems are highly vulnerable to human activity. Furthermore, oceanic islands close to the mainland provide distinct perspectives on natural processes, including overseas dispersal from the mainland. However, the effects of overseas dispersal and human activity on insular community changes have not been empirically demonstrated. 2. To clarify the mechanisms driving changes in [...]
The benefits of hierarchical ecosystem models: demonstration using a new state-space mass-balance model EcoState
Published: 2024-07-30
Subjects: Life Sciences
Ecosystem models predict changes in productivity and status for multiple species, and are important for incorporating climate-linked dynamics in ecosystem-based fisheries management. However, fishery regulations are primarily informed by single-species stock assessment models, which estimate unexplained variation in dynamics (e.g., recruitment, survival, fishery selectivity, etc) using random [...]
A review of professional ecological societies’ values, missions, and ethics
Published: 2024-07-27
Subjects: Ecology and Evolutionary Biology, Life Sciences
The rapid decline in Earth’s biodiversity poses significant threats to nature and human well-being. Human activities such as land use change, pollution, climate change, invasive species, and overexploitation drive this crisis, endangering millions of species and affecting critical habitats and ecosystems. This study investigates the role of professional ecological societies in addressing the [...]
Age, sex, and temperature shape within- and among-individual space use in black-capped chickadees
Published: 2024-07-27
Subjects: Animal Studies, Behavior and Ethology, Life Sciences, Social and Behavioral Sciences
Historically, spatial ecology studies have focused on average movement patterns within animal groups; however, recent studies highlight the value of considering movement decisions both within- and among-individuals. Using a marked population of black-capped chickadees (Poecile atricapillus), we used the number of unique feeders an individual visits within our study area as a proxy for space use [...]
Sexual dimorphism of metabolism in vampire crabs (Geosesarma hagen) is temperature and size-dependent
Published: 2024-07-27
Subjects: Ecology and Evolutionary Biology, Integrative Biology, Life Sciences, Physiology
El metabolismo es un vínculo clave entre la fisiología de un organismo y el medio ambiente. La plasticidad en las tasas metabólicas permite a los organismos responder y adaptarse al cambio ambiental. Comprender cómo cambia el metabolismo en respuesta a los aumentos de la temperatura ambiente y cómo estos cambios tendrán efectos diferenciales entre los individuos es un objetivo fundamental. [...]
The impact of tip age distribution on reconstructing trait evolution using phylogenetic comparative methods
Published: 2024-07-27
Subjects: Evolution
Collecting data for use in constructing phylogenies is a valuable but time- and resource-consuming pursuit. As a result, indicators of the potential value of including certain species in a phylogeny a priori could prove useful when planning this stage of research. Here, we used a simulation approach to investigate whether there are trends in the ability for phylogenetic comparative methods to [...]
Spatial occurrence records and distributions of tropical Asian butterflies
Published: 2024-07-27
Subjects: Biodiversity, Entomology
Insect biogeography is poorly documented globally, particularly in the tropics. Recent intensive research in tropical Asia, combined with increasingly available records from citizen science, provides an opportunity to map the distributions of tropical Asian butterflies. We compiled a dataset of 724,247 occurrences of 3,591 tropical Asian butterfly species by aggregating records from GBIF (651,285 [...]
IUCN Red List of Ecosystems, Mangroves of The Agulhas
Published: 2024-07-26
Subjects: Ecology and Evolutionary Biology, Life Sciences
Mangroves of the Agulhas is a regional ecosystem subgroup (Level 4 unit of the IUCN Global Ecosystem Typology). It includes the marine ecoregions of Agulhas Bank and KwaZulu-Natal that extend along the South African eastern coastline. The extent of the Agulhas mangroves in 2023 is 23.0 km2, representing 0.02% of the global mangrove area. Mangroves in this province are limited to 31 estuaries [...]
Snakes (Erythrolamprus spp.) with a complex toxic diet show convergent yet highly heterogeneous voltage-gated sodium channel evolution
Published: 2024-07-25
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences, Other Ecology and Evolutionary Biology, Population Biology
Chemical defense plays a crucial role in shaping ecosystems through selection for toxin resistance and has evolved convergently across multiple lineages. Research on toxin resistance has been pivotal in understanding trait evolution, as it often evolves through a simple genetic mechanism, target-site resistance (TSR), where mutations in target genes confer resistance. However, in tropical [...]
Traits, threats, and popularity explain extinction risk of birds globally
Published: 2024-07-25
Subjects: Ecology and Evolutionary Biology
As the biodiversity crisis deepens, understanding extinction risk is essential for conserving at-risk species and triaging those potentially overlooked. Extinction risk is often estimated with traits (e.g. larger species are more vulnerable) without considering the context of threats or human bias in the listing process (e.g. more popular species are more or less likely to be listed). On the [...]
Short-sighted evolution of virulence for invasive gut microbes: from hypothesis to tests.
Published: 2024-07-25
Subjects: Life Sciences, Medicine and Health Sciences
Why microbes harm their hosts is a fundamental question in evolutionary biology with broad relevance to our understanding of infectious diseases. Several hypotheses have been proposed to explain this "evolution of virulence." In this perspective, we re-examine one of these hypotheses in the specific context of the human gut microbiome, namely short-sighted evolution. According to the [...]
Match or mismatch: Tokay geckos adjust their behaviour based on handler familiarity but according to the context
Published: 2024-07-25
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Life Sciences
Animals need to recognize different individuals, both con- and heterospecifics, to make appropriate decisions. In the wild, responses to familiar individuals may vary depending on the context, which can be beneficial. However, differing responses towards human experimenters can influence experimental outcomes. Such effects might be particularly overlooked in reptiles which are frequently viewed [...]