${session.getAttribute("locale")} 5 Suspended particle characteristics in storm runoff from urban impervious surfaces in Toowoomba, Australia Wed 22 Aug 2018 15:42:23 AEST ]]> Intelligent Pavement Management and Maintenance Intervention Wed 20 Mar 2019 14:53:59 AEST ]]> An evaluation of acoustic seabed classification techniques for marine biotope monitoring over broad-scales (>1 km2) and meso-scales (10 m2–1 km2) 1 km2) and meso-scales (10 m2–1 km2). Its utility in this context was evaluated using two approaches: by describing natural changes in the temporal distribution of marine biotopes across the broad-scale (4 km2), and by attempting to detect specific experimentally-induced changes to kelp-dominated biotopes across the meso-scale (100 m2). For the first approach, acoustic backscatter mosaics were constructed using sidescan sonar and multibeam echosounder data collected from Church Bay (Rathlin Island, Northern Ireland) in 1999, 2008 and 2009. The mosaics were manually segmented into acoustic facies, which were ground-truthed using a drop-video camera. Biotopes were classified from the video by multivariate exploratory analysis and cross-tabulated with the acoustic facies, showing a positive correlation. These results were integrated with bathymetric data to map the distribution of seven unique biotopes in Church Bay. Kappa analysis showed the biotope distribution was highly similar between the biotope maps, possibly due to the stability of bedforms shaped by the tidal regime around Rathlin Island. The greatest biotope change in this approach was represented by seasonal and annual changes in the growth of the seagrass, Zostera marina. In the second approach, sidescan sonar data were collected before and after the removal of 100 m2 of kelp from three sites. Comparison of the data revealed no differences between the high-resolution backscatter imagery. It is concluded that acoustic seabed classification can be used to monitor change over broad- and meso-scales but not necessarily for all biotopes; its success depends on the type of acoustic system employed and the biological characteristics of the target biotope.]]> Wed 19 Aug 2015 23:45:42 AEST ]]> Fixed-station monitoring of a harbour wall community: the utility of low-cost photomosaics and scuba on hard-substrata Wed 19 Aug 2015 23:45:40 AEST ]]> Best make Time Wed 15 Nov 2017 13:59:53 AEST ]]> Counting steps? How's that working for you? Assessing the effects of tracking monitors and social contexts on fitness goals Wed 14 Dec 2016 11:34:14 AEST ]]> Quantifying the movement patterns of international women’s rugby sevens preparation training camp sessions Wed 13 Dec 2017 11:11:59 AEST ]]> Evidence of the water-energy nexus in tourist accommodation Tue 27 Aug 2019 11:55:20 AEST ]]> Ghost crabs as ecological indicators of human stressors on sandy beaches Tue 21 Nov 2017 10:04:17 AEST ]]> High congruence of isotope sewage signals in multiple marine taxa Tue 14 Jun 2016 13:41:29 AEST ]]> Human disturbance as a cause of bias in ecological indicators for sandy beaches: Experimental evidence for the effects of human trampling on ghost crabs (Ocypode spp.) Tue 14 Jun 2016 13:40:35 AEST ]]> Beach disturbance caused by off-road vehicles (ORVs) on sandy shores: Relationship with traffic volumes and a new method to quantify impacts using image-based data acquisition and analysis Tue 14 Jun 2016 13:40:31 AEST ]]> Athlete Considerations for Physique Measurement Tue 13 Nov 2018 16:29:31 AEST ]]> Umbrellas can work under water: Using threatened species as indicator and management surrogates can improve coastal conservation Tue 13 Mar 2018 14:27:40 AEST ]]> Long-term ecological monitoring and institutional memories Thu 20 Jun 2019 16:57:48 AEST ]]> Long-Term Infiltration Performance Evaluation of Dutch Permeable Pavements Using the Full-Scale Infiltration Method Thu 18 Apr 2019 11:32:48 AEST ]]> A Runtime Integrity Monitoring Framework for Real-time Relative Positioning Systems Based on GPS and DSRC Thu 16 Nov 2017 13:59:43 AEST ]]> Measuring and modelling above-ground carbon and tree allometry along a tropical elevation gradient Thu 14 Feb 2019 12:48:07 AEST ]]> Selection of line-transect methods for estimating the density of group-living animals: Lessons from the primates Thu 14 Feb 2019 12:47:52 AEST ]]> Current Practices in Monitoring and Reporting on Sustainability of Visitor Use of Protected Areas Thu 13 Jun 2019 13:40:11 AEST ]]> Condition Survey of Coastal Structures Using UAV and Photogrammetry Thu 07 Feb 2019 13:46:13 AEST ]]> Optimising Physique for Sports Performance Mon 23 Apr 2018 13:07:53 AEST ]]> Intelligent pavements through instrumentation: early results following an extreme rainfall event Fri 15 Mar 2019 09:42:44 AEST ]]> Optimizing Generic Cerambycid Pheromone Lures for Australian Biosecurity and Biodiversity Monitoring Fri 09 Aug 2019 15:55:41 AEST ]]> Methodology Review: Using Dual-Energy X-ray Absorptiometry (DXA) for the Assessment of Body Composition in Athletes and Active People Fri 08 Apr 2016 09:29:42 AEST ]]> Long-term monitoring reveals differing impacts of elephants on elements of a canopy shrub community 50 years of impacts in the succulent thickets of the Addo Elephant National Park, South Africa, contrasting hypotheses for the resilience of the canopy shrubs (a key functional guild) to elephants with those that argue the opposite. We also assess the impacts between elements of the community, ranging from community composition and structure to the structure of individual canopy species. We show the vulnerability of the canopy shrubs to transformation as the accumulated influences of elephants alter community composition and structure. The pattern of transformation is similar to that caused by domestic herbivores, which leads us to predict that elephants will eventually bring about landscape-level degradation and a significant loss of biodiversity. While we expected the canopy species to show similar declining trends in structure, providing insight into the response of the community as a whole, we demonstrate an uneven distribution of impacts between constituent elements; most of the canopy dominants exhibited little change, resisting removal. This implies that these canopy dominants might not be useful indicators of community change in thickets, a pattern that is likely repeated among the canopy trees of savanna systems. Our findings suggest that predicting elephant impacts, and finding solutions to the so-called “elephant problem,” require a broader and more integrated understanding of the mechanisms driving the changes between elements of biodiversity at various spatial and temporal scales.]]> Fri 08 Apr 2016 08:39:58 AEST ]]>