Caroline Björnerås
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View article: Iron dynamics of boreal lakes inferred from iron speciation analysis of varved lake sediments
Iron dynamics of boreal lakes inferred from iron speciation analysis of varved lake sediments Open
Iron (Fe) concentrations are increasing in lakes on a wide geographical scale, contributing to recent browning of lake waters. As available time series on lake-water Fe concentrations are relatively short, covering the past few decades onl…
View article: Sediment Records Shed Light on Drivers of Decadal Iron Concentration Increase in a Boreal Lake
Sediment Records Shed Light on Drivers of Decadal Iron Concentration Increase in a Boreal Lake Open
Increasing iron (Fe) concentrations are found in lakes on a wide geographical scale but exact causes are still debated. The observed trends might result from increased Fe loading from the terrestrial catchment, but also from changes in how…
View article: Predation risk and the evolution of a vertebrate stress response: Parallel evolution of stress reactivity and sexual dimorphism
Predation risk and the evolution of a vertebrate stress response: Parallel evolution of stress reactivity and sexual dimorphism Open
Predation risk is often invoked to explain variation in stress responses. Yet, the answers to several key questions remain elusive, including the following: (1) how predation risk influences the evolution of stress phenotypes, (2) the rela…
View article: Variation in predation regime drives sex‐specific differences in mosquitofish foraging behaviour
Variation in predation regime drives sex‐specific differences in mosquitofish foraging behaviour Open
Predation is a well‐studied driver of ecological selection on prey traits, which frequently drives divergence in anti‐predator performance across environments that vary in predation risk. However, predation also alters prey mortality regim…
View article: Inland blue holes of The Bahamas – chemistry and biology in a unique aquatic environment
Inland blue holes of The Bahamas – chemistry and biology in a unique aquatic environment Open
While lake systems in temperate regions have been extensively studied, tropical and subtropical systems have received less attention. Here, we describe the water chemistry and biota of ten inland blue holes on Andros Island, The Bahamas, r…
View article: High Diversity of Microcystin Chemotypes within a Summer Bloom of the Cyanobacterium Microcystis botrys
High Diversity of Microcystin Chemotypes within a Summer Bloom of the Cyanobacterium Microcystis botrys Open
The fresh-water cyanobacterium Microcystis is known to form blooms world-wide, and is often responsible for the production of microcystins found in lake water. Microcystins are non-ribosomal peptides with toxic effects, e.g. on vertebrates…
View article: Drivers of increasing iron concentrations in freshwaters
Drivers of increasing iron concentrations in freshwaters Open
Iron (Fe) concentrations are increasing in freshwaters (lakes and streams) in Sweden, as well as in other regions in northern Europe. Together with increasing concentrations of organic matter, Fe is contributing to the ongoing browning of …
View article: High sulfate concentration enhances iron mobilization from organic soil to water
High sulfate concentration enhances iron mobilization from organic soil to water Open
Widespread increases in iron (Fe) concentrations are contributing to ongoing browning of northern freshwaters, but the driver/s behind the trends are not known. Fe mobilization in soils is known to be controlled by redox conditions, pH, an…
View article: Low-latitude zooplankton pigmentation plasticity in response to multiple threats
Low-latitude zooplankton pigmentation plasticity in response to multiple threats Open
Crustacean copepods in high-latitude lakes frequently alter their pigmentation facultatively to defend themselves against prevailing threats, such as solar ultraviolet radiation (UVR) and visually oriented predators. Strong seasonality in …
View article: Data from: Low-latitude zooplankton pigmentation plasticity in response to multiple threats
Data from: Low-latitude zooplankton pigmentation plasticity in response to multiple threats Open
Crustacean copepods in high-latitude lakes frequently alter their pigmentation facultatively to defend themselves against prevailing threats, such as solar ultraviolet radiation (UVR) and visually-oriented predators. Strong seasonality in …
View article: Supplementary material from "Low-latitude zooplankton pigmentation plasticity in response to multiple threats"
Supplementary material from "Low-latitude zooplankton pigmentation plasticity in response to multiple threats" Open
Crustacean copepods in high-latitude lakes frequently alter their pigmentation facultatively to defend themselves against prevailing threats, such as solar ultraviolet radiation (UVR) and visually oriented predators. Strong seasonality in …
View article: Criteria for the Blue hole selection and raw data figure. from Low-latitude zooplankton pigmentation plasticity in response to multiple threats
Criteria for the Blue hole selection and raw data figure. from Low-latitude zooplankton pigmentation plasticity in response to multiple threats Open
Geographical location, turbidity measurements and predation risk of the selected lakes plus the figure displaying the variation of the experiment.
View article: Widespread Increases in Iron Concentration in European and North American Freshwaters
Widespread Increases in Iron Concentration in European and North American Freshwaters Open
Recent reports of increasing iron (Fe) concentrations in freshwaters are of concern, given the fundamental role of Fe in biogeochemical processes. Still, little is known about the frequency and geographical distribution of Fe trends or abo…