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Full-Text Articles in Social and Behavioral Sciences
A Herbivore Knows Its Patch: Luderick, Girella Tricuspidata, Exhibit Strong Site Fidelity On Shallow Subtidal Reefs In A Temperate Marine Park, Adrian M. Ferguson, Euan Harvey, Matthew Taylor, Nathan Knott
A Herbivore Knows Its Patch: Luderick, Girella Tricuspidata, Exhibit Strong Site Fidelity On Shallow Subtidal Reefs In A Temperate Marine Park, Adrian M. Ferguson, Euan Harvey, Matthew Taylor, Nathan Knott
Faculty of Science, Medicine and Health - Papers: part A
Understanding movement patterns, habitat use and behaviour of fish is critical to determining how targeted species may respond to protection provided by “no-take” sanctuary zones within marine parks. We assessed the fine and broad scale movement patterns of an exploited herbivore, luderick (Girella tricuspidata), using acoustic telemetry to evaluate how this species may respond to protection within Jervis Bay (New South Wales, Australia). We surgically implanted fourteen fish with acoustic transmitters and actively and passively tracked individuals to determine fine and broad scale movement patterns respectively. Eight fish were actively tracked for 24 h d¯1 for 6 d (May 2011), …
Modelling Digestive Constraints In Non-Ruminant And Ruminant Foregut-Fermenting Mammals, Adam Munn, W Jürgen Streich, Jurgen Hummel, Marcus Clauss
Modelling Digestive Constraints In Non-Ruminant And Ruminant Foregut-Fermenting Mammals, Adam Munn, W Jürgen Streich, Jurgen Hummel, Marcus Clauss
Faculty of Science, Medicine and Health - Papers: part A
It has been suggested that large foregut-fermenting marsupial herbivores, the kangaroos and their relatives, may be less constrained by food intake limitations as compared with ruminants, due mainly to differences in their digestive morphology and management of ingesta particles through the gut. In particular, as the quality Of forage declines with increasing contents of plant fibre (cellulose, hemicelluloses and lignin; measured as neutral-detergent fibre, NDF), the tubiform foregut of kangaroos may allow these animals to maintain food intakes more so than ruminants like sheep, which appear to be limited by fibrous bulk filling the foregut and truncating further ingestion. Using …