Preprints
Filtering by Subject: Terrestrial and Aquatic Ecology
Welcome to the Pyrocene: animal survival in the age of megafire
Published: 2021-04-10
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Planet Earth is entering the age of megafire, pushing ecosystems to their limits and beyond. While fire causes mortality of animals across vast portions of the globe, scientists are only beginning to consider fire as an evolutionary force in animal ecology. Here, we generate a series of hypotheses regarding animal responses to fire by adopting insights from the predator-prey literature. Fire is a [...]
Fungus-bacterium associations are widespread in fungal cultures isolated from a semi-arid natural grassland in Germany
Published: 2021-04-07
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
We here report on a study that aimed at establishing a large soil-fungal culture collection spanning a wide taxonomic diversity and systematically screening the collection for bacterial associations.
Contrasting climate velocity impacts in warm and cool locations show that effects of marine warming are worse in already warmer temperate waters
Published: 2021-04-01
Subjects: Ecology and Evolutionary Biology, Life Sciences, Marine Biology, Population Biology, Terrestrial and Aquatic Ecology
Species responses to climate change are often measured at broad spatiotemporal scales, which can miss fine-scale changes that are relevant to conservation and fisheries management. We develop a scale-able geostatistical approach to assess how juvenile and adult fish distributions have been shaped by changes in bottom temperature and dissolved oxygen over a recent decade of warming in the [...]
Weak but persistent provenance effects modulate the response of Quercus robur (Fagaceae) seedlings to elevated temperature
Published: 2021-03-26
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Background and aims Clinal variation in bud phenology and growth has repeatedly been reported in common garden experiments for many tree species. The response of the seedlings generated from such translocated trees has not been studied yet, despite its relevance regarding the role of transgenerational plasticity in the adaptation of long-living trees in the face of climate change. Here, we aim to [...]
Deploying Ecological Countermeasures as a Biosecurity Imperative
Published: 2021-03-09
Subjects: Animal Sciences, Biodiversity, Biology, Ecology and Evolutionary Biology, Environmental Public Health, Epidemiology, Immunity, Immunology and Infectious Disease, Immunology of Infectious Disease, Immunopathology, International Public Health, Life Sciences, Maternal and Child Health, Medicine and Health Sciences, Other Immunology and Infectious Disease, Population Biology, Public Health, Terrestrial and Aquatic Ecology, Veterinary Infectious Diseases, Veterinary Medicine, Veterinary Microbiology and Immunobiology, Veterinary Pathology and Pathobiology, Zoology
The COVID-19 pandemic has brought biosecurity to the forefront of national security policy. Land use change is a fundamental driver of zoonotic disease outbreaks, yet substantial study is yet required to unravel the mechanisms by which land use-induced spillover operates. Ecological degradation may be the 21st Century’s most overlooked security threat. Within the biosecurity context, we introduce [...]
Nonlinear ecosystem responses to leaf litter subsidies in experimental ponds
Published: 2021-03-06
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Subsidies of matter between ecosystems can strongly affect trophic interactions in food webs, yet most experiments apply a binary (i.e., subsidy vs. no subsidy) approach. This emphasis on extremes implicitly assumes linear relationships and fails to capture potential nonlinear effects in ecosystem responses along gradients of subsidy amount seen in real systems. To examine the effects of such [...]
Towards monitoring ecosystem integrity within the Post-2020 Global Biodiversity Framework
Published: 2021-03-05
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Signatory countries to the Convention on Biological Diversity (CBD) are formulating indicators through 2030 under the post-2020 Global Biodiversity Framework (GBF). These goals include increasing the integrity of natural ecosystems. However, the definition of integrity and methods for measuring it remain unspecified. Moreover, nations did not achieve their 2011-2020 CBD targets, partly due to [...]
Ecological stoichiometry as a foundation for omics-enabled biogeochemical models of soil organic matter decomposition
Published: 2021-02-14
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Coupled biogeochemical cycles drive ecosystem ecology by influencing individual-to-community scale behaviors; yet the development of process-based models that accurately capture these dynamics remains elusive. Soil organic matter (SOM) decomposition in particular is influenced by resource stoichiometry that dictates microbial nutrient acquisition (‘ecological stoichiometry’). Despite its basis in [...]
Thermal flexibility and a generalist life history promote urban tolerance in butterflies
Published: 2021-02-08
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Urban expansion poses a serious threat to biodiversity. Given that the expected area of urban land cover is predicted to increase by 2-3 million km2 by 2050, urban environments are one of the most widespread human-dominated land-uses affecting biodiversity. Responses to urbanization differ greatly among species. Some species are unable to tolerate urban environments (i.e., urban avoiders), others [...]
Systematic review protocol to guide the delineation of critical habitat in the riparian zone for listed freshwater fishes and mussels
Published: 2021-01-30
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Background Habitat that is necessary for the survival and recovery of a species listed as threatened, endangered, or extirpated (i.e., Critical Habitat) is protected in Canada. For aquatic species, Critical Habitat may include riparian habitat, however it is unclear how much of this riparian habitat needs to be protected to support the survival and recovery of a listed species (primary question). [...]
Soil fungal diversity and community assembly: Affected by island size or type?
Published: 2021-01-27
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Terrestrial and Aquatic Ecology
Fungi have huge biodiversity and play important roles in soil biogeochemical cycling and ecosystem services in island ecosystems. Although island biogeography has been widely studied in macroorganisms, the relationship between soil fungal diversity and area in islands is less documented. Here, we examine soil fungal communities of 18 oceanic islands belonged to two types of islands (8 general [...]
Raczka et al. Interactions between microbial diversity and substrate chemistry determine the fate of carbon in soil.
Published: 2021-01-20
Subjects: Biology, Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
Microbial decomposition drives the transformation of plant-derived substrates into microbial products that form stable soil organic matter (SOM). Recent theories have posited that decomposition depends on an interaction between SOM chemistry with microbial diversity and resulting function. Here, we explicitly test these theories by coupling quantitative stable isotope probing and metabolomics to [...]
Assembly processes lead to divergent soil fungal communities within and among twelve forest ecosystems along a latitudinal gradient
Published: 2021-01-15
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Terrestrial and Aquatic Ecology
- Latitudinal gradients provide opportunities to better understand soil fungal community assembly and its relationship with vegetation, climate, soil and ecosystem function. Understanding the mechanisms underlying community assembly is essential for predicting compositional responses to changing environments. - We quantified the relative importance of stochastic and deterministic processes in [...]
Population divergence in aggregation and sheltering behaviour in surface and cave-adapted Asellus aquaticus (Crustacea: Isopoda)
Published: 2020-12-20
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Evolution, Life Sciences, Terrestrial and Aquatic Ecology
Aggregation (gathering together) and sheltering (hiding in cover) are basic behaviours that might reduce the risk of predation. However, both behaviours have costs, like increased competition over resources and high prevalence of contact-spread parasites (aggregation) or lost opportunities for foraging and mating (sheltering). Therefore, adaptive variation in these behaviours is expected between [...]
Large contribution of recent photosynthate to soil respiration in Dipterocarpaceae-dominated tropical forest revealed by girdling
Published: 2020-12-15
Subjects: Ecology and Evolutionary Biology, Life Sciences, Terrestrial and Aquatic Ecology
• Tropical forests are the most productive terrestrial ecosystem, fixing around 41 Pg of carbon from the atmosphere each year. A substantial portion of this carbon is allocated belowground to roots and root-associated microorganisms. However, there have been very few empirical studies on the dynamics of this transfer, especially in tropical forests where the response is mediated by high plant [...]