How functionally diverse are fish in the deep? A comparison of fish communities in deep and shallow‐water systemsVictoria Grace Carrington, Yvan Papa, Jessica Hall, Monique A. Ladds, Alice Rogers, Peter Horn, Raphaël Covain & Chelsey M. Beese
Aim: Functional diversity metrics inform how species’ traits relate to ecosystem functions, useful for quantifying how exploitation and disturbance impact ecosystems. We compare the functional diversity of entire fish communities in a shallow-water region with a deep-sea region for further insight into the differences between these ecosystem types. Location: The regions compared in this study were selected to represent a shallow-water coastal region, Tasman and Golden Bays (TBGB), and a deep-sea region, Chatham Rise (CR),...
Data associated with: Going round the twist – An empirical analysis of shell coiling in helicospiral gastropodsKatie S. Collins, Roman Klapaukh, James S. Crampton, Michael F. Gazley, C. Ian Schipper, Anton Maksimenko & Benjamin R. Hines
The logarithmic helicospiral has been the most widely accepted model of regularly coiled mollusc form since it was proposed by Moseley (1838) and popularised by Thompson (1942) and Raup (1966). It is based on an explicit assumption that shells are isometric and grow exponentially, and an implicit assumption that the external form of the shell follows the internal shape, which implies that the parameters of the spiral could, theoretically, be reconstructed from the external whorl...
Repeated measure plant community data after fire in boreal forest, Taiga Shield, Northwest Territories, Canada, 1998-2018Nicola Day, Jennifer Baltzer & Suzanne Carriere
10 transects were established in the years following fire in boreal forest stands on the Taiga Shield, Northwest Territories, Canada in 1998-1999. These were remeasured annually. Six transects were returned to on 2018 for another measurement. At each measurement, we recorded ground covers, species identities, and counted tree stems (seedlings).
Risk assessments are fundamental to invasive species management and are underpinned by comprehensive characterization of invasive species impacts. Our understanding of the impacts of invasive species is growing constantly, and several recently developed frameworks offer the opportunity to systematically categorize environmental and socio-economic impacts of invasive species. Invasive ants are among the most widespread and damaging invaders. We provide a global, comprehensive assessment on the impacts of ants and propose a priority list of risk...
Identifying mechanisms of population change is fundamental for conserving small and declining populations and determining effective management strategies. Few studies, however, have measured the demographic components of population change for small populations of mammals (< 50 individuals). We estimated vital rates and trends in two adjacent but genetically distinct, threatened brown bear (Ursus arctos) populations in British Columbia, Canada, following the cessation of hunting. One population had approximately 45 resident bears but had some genetic...
Rapid multi-generational acclimation of coralline algal reproductive structures to ocean acidificationBilly Moore, Steeve Comeau, Matthieu Bekaert, Amelie Cossias, Ashley Purdy, Ellis Larcombe, Frankie Puerzer, Malcolm McCulloch & Christopher Cornwall
The future of coral reef ecosystems is under threat because vital reef-accreting species such as coralline algae are highly susceptible to ocean acidification. Although ocean acidification is known to reduce coralline algal growth rates, its direct effects on the development of coralline algal reproductive structures (conceptacles) is largely unknown. Furthermore, the long-term, multi-generational response of coralline algae to ocean acidification is extremely understudied. Here, we investigate how mean pH, pH variability and the pH regime...
Hydrogen peroxide signaling mediates fertilization and post-fertilization development in the red alga Bostrychia moritzianaEunyoung Shim, Ji Woong Lee, Hana Park, Giuseppe C. Zuccarello & Gwang Hoon Kim
Reactive oxygen species (ROS) signaling has a multitude of roles in cellular processes throughout biology. We hypothesized that red algal fertilization may offer an interesting model to study ROS-mediated signaling as the stages of fertilization are complex and unique. We microscopically localized ROS production and monitored the expression of three homologues of NADPH-oxidase in reproductive cells during fertilization. ROS were instantaneously produced by spermatia (sperm) when they attached to female trichogynes, diffused across the cell...
Victoria University of Wellington7
Wilfrid Laurier University1
The Nature Conservancy1
Natural History Museum1
University College London1
Okinawa Institute of Science and Technology1
Kongju National University1
Natural History Museum of Geneva1
Department of Conservation1
Commonwealth Scientific and Industrial Research Organisation1