B. Gauthier results 39
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Drying Spring Accelerates Transitions Toward Pyrogenic Vegetation in Eastern Boreal North AmericaNARA Subscribed
The ongoing climate change increases vegetation flammability in the boreal forests of eastern North America, leading to more intense and severe wildfires. Using palaeoecological data—including charcoal, pollen, chironomids and testate amoebae—and climate model simulations of vapour pressure deficit (VPD) and available soil water (ASW), we analysed fire dynamics over the past 8000 years in boreal eastern North America. Over the...
Cover Image, Volume 28, Issue 6NARA Subscribed
We compared the electrosensory system of two benthic elasmobranchs Hemiscyllium ocellatum and Chiloscyllium punctatum . The distribution of the ampullary pores on the head was similar for both species, with a higher density of pores anteriorly and a lower density posteriorly, although C. punctatum generally possessed larger pores. Ampullary canals of the mandibular cluster were quasi‐sinusoidal in H. ocellatum , a shape previo...
Aim Large tropical trees form the interface between ground and airborne observations, offering a unique opportunity to capture forest properties remotely and to investigate their variations on broad scales. However, despite rapid development of metrics to characterize the forest canopy from remotely sensed data, a gap remains between aerial and field inventories. To close this gap, we propose a new pan‐tropical model to predic...
Experimental induction of mouthrot in Atlantic salmon smolts using Tenacibaculum maritimum from Western CanadaNARA Subscribed
Mouthrot, or bacterial stomatitis, is a disease which mainly affects farmed Atlantic salmon, ( Salmo salar , L.), smolts recently transferred into salt water in both British Columbia (BC), Canada, and Washington State, USA. It is a significant fish welfare issue which results in economic losses due to mortality and antibiotic treatments. The associated pathogen is Tenacibaculum maritimum , a bacterium which causes significant...
Morphological comparison of the ampullae of Lorenzini of three sympatric benthic raysNARA Subscribed
This study investigated and compared the morphology of the electrosensory system of three species of benthic rays . Neotrygon trigonoides , Hemitrygon fluviorum and Maculabatis toshi inhabit similar habitats within Moreton Bay, Queensland, Australia. Like all elasmobranchs, they possess the ability to detect weak electrical fields using their ampullae of Lorenzini. Macroscopically, the ampullary organs of all three species are...
Aim Understanding the forces shaping biodiversity patterns, particularly for groups of organisms with key functional roles, will help predict the responses of ecosystems to environmental changes. Our aim was to evaluate the relative role of different drivers in shaping the diversity patterns of vertebrate herbivores, a group of organisms exerting a strong trophic influence in terrestrial Arctic ecosystems. This biome, traditio...
EPMA-World Congress 2015NARA Subscribed