R. Dillon results 60
· Newest (Page 1/3, per page 25)
Author: R. Dillon ×Clear All Filters
Search Results
Global patterns and regional insights into kelp forest protection, restoration, and stewardshipNARA Subscribed
Kelp forests are among the most extensive and productive coastal ecosystems, yet they remain underrepresented in global conservation policy despite widespread declines driven by interacting global- (i.e., ocean warming, marine heatwaves) to local-scale stressors. At the same time, kelp conservation and restoration efforts are expanding rapidly across regions, but measures of success and syntheses tend to primarily focus on eco...
Native and non-native plant richness and diversity along an elevational gradient in the Ecuadorian AndesNARA Subscribed
Ecuador, recognized as a megadiverse country, faces growing threats from biological invasions, particularly in the mountainous ecosystems of the Andes. We described patterns of native and non-native plant richness and diversity along an elevational gradient (2,000–4,400 m a.s.l.) on the Tungurahua volcano, testing whether patterns of non-native plant diversity are consistent with directional environmental filtering along the g...
Optimising parent selection in plant breeding: comparing metaheuristic algorithms for genotype buildingNARA Subscribed
Stacking desirable haplotypes across the genome to develop superior genotypes has been implemented in several crop species. A major challenge in Optimal Haplotype Selection is identifying a set of parents that collectively contain all desirable haplotypes, a complex combinatorial problem with countless possibilities. In this study, we evaluated the performance of metaheuristic search algorithms (MSAs)—genetic algorithm (GA), d...
Multispecies Coexistence Emerges From Pairwise Exclusions in Communities With Competitive HierarchyNARA Subscribed
Competitive coexistence is often understood as an additive process where coexisting species pairs, triplets, etc. combine to form larger communities. However, emergent coexistence—where multispecies persistence occurs without pairwise coexistence—can arise through mechanisms including intransitive loops, facilitation, or higher‐order interactions. Emergent coexistence has functional consequences, for example constraining commu...
Availability and transfer of non-essential elements in a rehabilitated bauxite residue grassland systemNARA Subscribed
Aims This study investigated a 7 yr old rehabilitated grassland established on a bauxite residue storage areas(RSA) in order to assess the availability and ecosystem transfer of both nutrient and trace elements, and to determine if defined rehabilitation criteria were sustained. Methods Rehabilitated residue/soil was sampled over depth (0–10 and 10-20 cm) and season (Spring/Summer and Autumn/Winter) and plant growth stage (gre...
Nanofiltration (NF), reverse osmosis (RO), electrodialysis (ED), and electrocoagulation (EC), were all tested at the bench scale for removing selenium (Se) from mine water. All of these technologies reduced the concentration of total Se from 216 µg/L (i.e. 120.1 µg/L of selenate; 59.1 µg/L of selenite, and 0.6 µg/L methyl-selenic acid) in the raw mine water to about 2 µg/L or less in the treated water, equivalent to more than...
Effects of elevated water temperature on cutthroat trout angler catch rates and catch‐and‐release mortality in Idaho streamsNARA Subscribed
The concern is growing that angling may need to cease at elevated summer water temperatures to protect salmonid populations. Cutthroat Trout Oncorhynchus clarkii in streams were caught, marked and released using artificial dry flies at temperatures from 13.5 to 25.7°C to evaluate whether subsequent recapture with backpack electrofishing (an index of relative survival) was reduced when the water temperature was elevated at the...
Rangelands in a fragmented grass-dominated landscape are vulnerable to tree invasion from roadsidesNARA Subscribed
Roadsides can be vectors for tree invasion within rangelands by bisecting landscapes and facilitating propagule spread to interior habitat. Current invasive tree management in North America’s Great Plains focuses on reducing on-site (i.e., interior habitat) vulnerability through on-site prevention and eradication, but invasive tree management of surrounding areas known to serve as invasion vectors, such as roadsides and public...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
Daily torpor reduces the energetic consequences of microhabitat selection for a widespread batNARA Subscribed
Homeothermy requires increased metabolic rates as temperatures decline below the thermoneutral zone, so homeotherms typically select microhabitats within or near their thermoneutral zones during periods of inactivity. However, many mammals and birds are heterotherms that relax internal controls on body temperature and go into torpor when maintaining a high, stable body temperature, which is energetically costly. Such heterothe...