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Offshore fossil fuel extraction and marine conservation: intensifying regulatory challenges in AustraliaNARA Subscribed
Conflicts between marine conservation and extractive industries are escalating globally. This is particularly evident in Australia, where societal perceptions of sustainability, climate concerns, and socio-ecological ideals clash with government economic priorities and fossil fuel interests. Australia’s offshore petroleum licensing and regulatory processes are examined, focusing on the initial decision to release offshore acre...
Ocean acidification (OA) generally receives far less consideration than other climate stressors and related hazards, such as global warming and extreme weather events. Canada is uniquely vulnerable to OA given its extensive coastal oceans, the oceanographic processes in its three basins, accelerated warming and sea-ice melt, and extensive coastal communities and maritime economic sectors. Canada’s coastline is also home to ext...
Endophytic Beauveria bassiana in sugarcane and associated Eldana saccharina host plants in South AfricaNARA Subscribed
Eldana saccharina Walker is a problematic sugarcane stalk borer pest in South Africa. Twenty-eight sugarcane genotypes ( Saccharum spp. hybrids) and seven different species of host plants of E. saccharina were surveyed for the presence of endophytic Beauveria bassiana sensu lato ( s.l. ). Collectively, 326 plant samples (roots, stems, or leaves) were collected from five locations in sugarcane-producing areas (KwaZulu-Natal; So...
Adaptive responses to living in stressful habitats: Do invasive and native plant populations use different strategies?NARA Subscribed
Plants inhabit stressful environments characterized by a variety of stressors, including mine sites, mountains, deserts, and high latitudes. Populations from stressful and reference (non‐stressful) sites often have performance differences. However, while invasive and native species may respond differently to stressful environments, there is limited understanding of the patterns in reaction norms of populations from these sites...
Effects of vertical mixing on the Lake Michigan food web: an application of a linked end-to-end earth system model frameworkNARA Subscribed
Physical processes may affect ecosystem structure and function through the accumulation, transport, and dispersal of organic and inorganic materials, nutrients, and organisms; they structure physical habitat and can influence predator–prey interactions and trophic production. In the Laurentian Great Lakes, horizontal currents generally dominate, but little is known about the effects of vertical mixing on lake food webs. We dev...
Predicting larval alewife transport in Lake Michigan using hydrodynamic and Lagrangian particle dispersion modelsNARA Subscribed
Several species of fish in large lakes and marine environments have a pelagic larval stage, and are subject to variable transport that can ultimately regulate survival and recruitment success. Alewife, Alosa pseudoharengus , are subject to transport by complex coastal currents during their pelagic larval stage (~ 30 d). We assessed backward‐trajectory simulations, consisting of a Lagrangian particle dispersion model linked to...
Potential establishment and ecological effects of bighead and silver carp in a productive embayment of the Laurentian Great LakesNARA Subscribed
Bighead carp H . nobilis and silver carp Hypothalmichthys molitrix (collectively bigheaded carps, BHC) are invasive planktivorous fishes that threaten to enter the Laurentian Great Lakes and disrupt food webs. To assess the likelihood of BHC establishment and their likely effects on the food web of Saginaw Bay, Lake Huron, we developed a multi-species individual-based bioenergetics model that tracks individual bighead and silv...
Northern quahog ( Mercenaria mercenaria ) larval transport and settlement modeled for a temperate estuaryNARA Subscribed
Evaluating marine species' population connectivity through larval transport can provide insight into the reliance of geographically separated areas on each other's recruitment and metapopulation resiliency. Using larval transport modeling, we assessed the significance of different regions in supporting the Narragansett Bay Northern quahog ( Mercenaria mercenaria ) population. We aimed to identify how areas with varying adult q...
High‐turbidity events in Western Lake Erie during ice‐free cycles: Contributions of river‐loaded vs. resuspended sedimentsNARA Subscribed
High‐turbidity events (HTEs) are common phenomena in shallow‐water environments that can alter ecological interactions. The relative contributions of river input (external loading) vs. resuspension (internal loading) to the occurrence, duration, and influenced areas of HTEs are not fully understood in most systems, owing to the lack of long‐term, source‐specified sediment maps. Using a Finite Volume Community Ocean Model‐based...