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Thermal and Osmotic Tolerance of the Medusa Stage of ‘Irukandji’ Jellyfish: Cubozoa; Carukia barnesiOA Marine
Carukia barnesi is a small tropical Cubozoan that causes painful and potentially fatal stings (Irukandji syndrome) along the north-eastern coast of Australia during the summer monsoonal months between November and May. This research establishes the thermal and osmotic tolerance of the medusa stage of the Irukandji jellyfish C. barnesi to determine if environmental parameters influence the marked seasonality of this species. By...
Genes Versus Environment: Body Size Variation Among Recruitment Cohorts of Dungeness CrabNARA Subscribed
Understanding the drivers of phenotypic variation is key to disentangling the evolutionary and environmental forces that shape patterns of trait variation within and among populations. In Dungeness crab, settlement‐stage megalopae exhibit striking seasonal variation in body size, with early season cohorts consistently larger than later ones. This pattern may result from genetically distinct larval sources or environmentally in...
Physiological and morphological responses of ‘Irukandji’ polyps to thermal and osmotic conditions: consequences for niche profilingNARA Subscribed
The Irukandji jellyfish ( Carukia barnesi) is a medically important species. While the medusa stage of this species is well known, due to its highly venomous sting, the benthic polyp has core roles in regulating both the timing and abundance of medusa making it a research priority. However, due to their small size, Carukia barnesi polyps have never been found in situ and, basic ecological knowledge surrounding this life stage...
Probing the nature of soil organic matterNARA Subscribed
The bacteria in the Streptococcus bovis / equinus complex (SBEC) and Streptococcus phocae have caused significant morbidity and mortality in northern sea otters ( Enhydra lutris kenyoni ). In order to illuminate the persistence and possible mechanisms of transmission of SBEC and S . phocae , the presence and absence of these bacteria were compared with 31 habitat attributes in Kachemak Bay and Resurrection Bay, Alaska. Bay mus...
Summary Fungi are noted producers of a diverse array of secondary metabolites, many of which are of pharmacological importance. However, the biological roles of the vast majority of these molecules during the fungal life cycle in nature remain elusive. Solanapyrones are polyketide‐derived secondary metabolites produced by diverse fungal species including the plant pathogen Ascochyta rabiei . This molecule was originally though...
Invasion in patchy landscapes is affected by dispersal mortality and mate‐finding failureNARA Subscribed
Range expansions are a function of population growth and dispersal, and nascent populations often must overcome demographic Allee effects (positive density dependence at low population densities) driven by factors such as mate‐finding failure. Given the importance of individual movement to mate finding, links between landscape structure and movement may be critical to range expansion; however, landscape effects on other factor...