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Continental Patterns of Phenotypic Variation Along Replicated Urban Gradients: A Mega‐AnalysisNARA Subscribed
Individual variation among and within natural populations can have eco‐evolutionary implications by, for example, affecting species interactions or evolutionary potential. Urban systems present a unique opportunity to evaluate how environmental change shapes variation since urban phenotypic differentiation is widely documented on contemporary timescales. We introduce and test three hypotheses to determine how urbanisation affe...
Paramoeba atlantica as a Natural Intracellular Niche for Vibrios in Marine EcosystemsNARA Subscribed
Vibrios are a group of aquatic bacteria that include diverse pathogens for humans and marine animals. In their natural environment, these bacteria are subject to predation by heterotrophic protozoa, including free‐living amoebae. Previous studies suggested that some amoebae species can promote the environmental persistence and dissemination of pathogenic vibrios. However, most research has focused on model amoebae derived from...
Reducing Fire Severity and Extent Bolsters Subalpine Forest Resilience to Global Change Through Key Demographic PathwaysNARA Subscribed
High‐elevation subalpine forests are experiencing rapid changes in climatic conditions, biological disturbances, and wildfire regimes. Despite this, evidence is mixed as to whether they will undergo major ecological transformation or be resilient to a confluence of global change drivers. Here we use subalpine fir ( Abies lasiocarpa ) and Englemann spruce ( Picea engelmannii ), which form co‐dominant forests through much of the...
Purpose There is an increasing interest in the use of non-nutritive sweeteners to replace added sugar in food and beverage products for reasons of improving consumer health. Much work has been done to understand safety of sweeteners, but very little on sustainability. To address that gap, this study presents the results of a life cycle assessment (LCA) of production of rebaudioside A 60%, 95% pure (RA60) steviol glycoside mix...
Honest signaling in mouse lemur vocalizations?NARA Subscribed
Animal vocalizations may provide information about a sender’s condition or motivational state and, hence, mediate social interactions. In this study, we examined whether vocalizations of gray mouse lemurs ( Microcebus murinus ) emitted in aggressive contexts (grunts, tsaks) co-vary with physical condition, which would underly and indicate honest signaling. We recorded calls from captive individuals that were subjected to a cal...
Aim Central America is largely covered by hyperdiverse, yet poorly understood, rain forests. Understorey palms are diverse components of these forests, but little is known about their historical assembly. It is not clear when palms in Central America reached present diversity levels and whether most species arrived from neighbouring regions or evolved locally. We addressed these questions using the most species‐rich American p...
Summary Vibrios are ubiquitous in marine environments and opportunistically colonize a broad range of hosts. Strains of Vibrio tasmaniensis present in oyster farms can thrive in oysters during juvenile mortality events and behave as facultative intracellular pathogen of oyster haemocytes. Herein, we wondered whether V . tasmaniensis LGP32 resistance to phagocytosis is specific to oyster immune cells or contributes to resistanc...
Shape plasticity in response to water velocity in the freshwater blenny Salaria fluviatilisNARA Subscribed
A non‐random association between an environmental factor and a given trait could be explained by directional selection (genetic determinism) and by phenotypic plasticity (environmental determinism). A previous study showed a significant relationship between morphology and water velocity in Salaria fluviatilis that conformed to functional expectations. The objective of this study was to test whether this relationship could be e...
The application of irrigation water and nitrogen (N) fertilizer in excess of crop demand reduces profitability and has multiple detrimental impacts on the environment. N dynamics in agro‐ecosystems are extremely complex, and mechanistic crop models are most often required to quantify the impact of improved management practices on reducing fertilizer N losses. In this study, life cycle assessment (LCA) methodology and mechanist...
Variability in smallholders' irrigation water values: Study in North‐West Province, South AfricaNARA Subscribed
Capturing the economic value of water use is an integral part in the design of economic incentives and institutional arrangements that can ensure sustainable, efficient and equitable allocation of water. Irrigation water values of small‐scale irrigators are, however, seldom studied and too little attention is paid to the determinants of the variability of water values. In South Africa issues like the call for more efficient wa...