Distinctive diets of eutherian predators in Australia.

Introduction of the domestic cat and red fox has devastated Australian native fauna. We synthesized Australian diet analyses to identify traits of prey species in cat, fox and dingo diets, which prey were more frequent or distinctive to the diet of each predator, and quantified dietary overlap. Nearly half (45%) of all Australian terrestrial mammal, bird and reptile species occurred in the diets of one or more predators. Cat and dingo diets overlapped least (0.64 ± 0.27, n = 24 location/time points) and cat diet changed little over 55 years of study. Cats were more likely to have eaten birds, reptiles and small mammals than foxes or dingoes. Dingo diet remained constant over 53 years and constituted the largest mammal, bird and reptile prey species, including more macropods/potoroids, wombats, monotremes and bandicoots/bilbies than cats or foxes. Fox diet had greater overlap with both cats (0.79 ± 0.20, n = 37) and dingoes (0.73 ± 0.21, n = 42), fewer distinctive items (plant material, possums/gliders) and significant spatial and temporal heterogeneity over 69 years, suggesting the opportunity for prey switching (especially of mammal prey) to mitigate competition. Our study reinforced concerns about mesopredator impacts upon scarce/threatened species and the need to control foxes and cats for fauna conservation. However, extensive dietary overlap and opportunism, as well as low incidence of mesopredators in dingo diets, precluded resolution of the debate about possible dingo suppression of foxes and cats.

The impact of synchronous hybrid instruction on students' engagement in a pharmacotherapy course.

Background: Synchronous hybrid instruction offers flexible learning opportunities by allowing a portion of students to attend class sessions on campus while simultaneously allowing the remaining students to attend remotely. Although such flexibility may offer a number of advantages for pharmacy students, one area of concern is whether online participation options within synchronous hybrid courses can promote similar levels of engagement as courses that are designed entirely for face-to-face (FTF) participation. Objectives: The objective of this study was to evaluate the impact of synchronous hybrid instruction on pharmacy students' engagement in a pharmacotherapy course. An evaluation was completed to determine if students were more likely to actively engage in class when they were participating remotely via teleconferencing technology or when FTF. Additionally, students' perspectives were evaluated to determine their views of the benefits and challenges of the hybrid model for engagement in learning. Methods: The course utilizes team-based learning to apply critical thinking skills and develop a comprehensive care plan. A mixed methods approach was used to examine students' engagement in the hybrid learning environment by quantitatively analyzing students' responses to likert-scale survey items and qualitatively analyzing their responses to open-ended survey questions. Results: Students reported they were more likely to actively listen (p=0.004), avoid distractions (p=0.008), and react emotionally to a topic or instruction (p=0.045) when FTF. There were no significant differences found in student reported note taking, asking questions, responding to questions, or engaging in group work between the two modes of participation. Content analysis identified other benefits that supported student engagement, including perceived flexibility and enhanced ability to interact during class via the teleconferencing technology. For some students, challenges that negatively impacted engagement included difficulties with internet connectivity and a sense of dislocation or isolation in the course. Conclusion: This study demonstrated that when participating in a synchronous hybrid course, students participating remotely were less likely (compared to in-person attendance) to pay close attention and react emotionally, but were just as likely to take notes and communicate with teachers and groups. Key benefits of the hybrid approach were increased flexibility and the usefulness of online communication tools, while key challenges focused on technical and psychological isolation from others. The principles of flexible learning environments and self-regulated learning provide opportunities for pharmacy educators who are interested in improving hybrid instruction in the future.

The impact of synchronous hybrid instruction on students’ engagement in a pharmacotherapy course

Background: Synchronous hybrid instruction offers flexible learning opportunities by allowing a portion of students to attend class sessions on campus while simultaneously allowing the remaining students to attend remotely. Although such flexibility may offer a number of advantages for pharmacy students, one area of concern is whether online participation options within synchronous hybrid courses can promote similar levels of engagement as courses that are designed entirely for face-to-face (FTF) participation. Objectives: The objective of this study was to evaluate the impact of synchronous hybrid instruction on pharmacy students’ engagement in a pharmacotherapy course. An evaluation was completed to determine if students were more likely to actively engage in class when they were participating remotely via teleconferencing technology or when FTF. Additionally, students’ perspectives were evaluated to determine their views of the benefits and challenges of the hybrid model for engagement in learning. Methods: The course utilizes team-based learning to apply critical thinking skills and develop a comprehensive care plan. A mixed methods approach was used to examine students’ engagement in the hybrid learning environment by quantitatively analyzing students’ responses to likert-scale survey items and qualitatively analyzing their responses to open-ended survey questions. (AU)

Does aerial baiting for controlling feral cats in a heterogeneous landscape confer benefits to a threatened native meso-predator?

Introduced mammalian predators can have devastating impacts on recipient ecosystems and disrupt native predator-prey relationships. Feral cats (Felis catus) have been implicated in the decline and extinction of many Australian native species and developing effective and affordable methods to control them is a national priority. While there has been considerable progress in the lethal control of feral cats, effective management at landscape scales has proved challenging. Justification of the allocation of resources to feral cat control programs requires demonstration of the conservation benefit baiting provides to native species susceptible to cat predation. Here, we examined the effectiveness of a landscape-scale Eradicat® baiting program to protect threatened northern quolls (Dasyurus hallucatus) from feral cat predation in a heterogeneous rocky landscape in the Pilbara region of Western Australia. We used camera traps and GPS collars fitted to feral cats to monitor changes in activity patterns of feral cats and northern quolls at a baited treatment site and unbaited reference site over four years. Feral cat populations appeared to be naturally sparse in our study area, and camera trap monitoring showed no significant effect of baiting on cat detections. However, mortality rates of collared feral cats ranged from 18-33% after baiting, indicating that the program was reducing cat numbers. Our study demonstrated that feral cat baiting had a positive effect on northern quoll populations, with evidence of range expansion at the treatment site. We suggest that the rugged rocky habitat preferred by northern quolls in the Pilbara buffered them to some extent from feral cat predation, and baiting was sufficient to demonstrate a positive effect in this relatively short-term project. A more strategic approach to feral cat management is likely to be required in the longer-term to maximise the efficacy of control programs and thereby improve the conservation outlook for susceptible threatened fauna.

Species delimitation in the Gehyra nana (Squamata: Gekkonidae) complex: cryptic and divergent morphological evolution in the Australian Monsoonal Tropics, with the description of four new species.

Recent advances in molecular genetic techniques and increased fine scale sampling in the Australian Monsoonal Tropics (AMT) have provided new impetus to reassess species boundaries in the Gehyra nana species complex, a clade of small-bodied, saxicolous geckos which are widely distributed across northern Australia. A recent phylogenomic analysis revealed eight deeply divergent lineages that occur as a series of overlapping distributions across the AMT and which, as a whole, are paraphyletic with four previously described species. Several of these lineages currently included in G. nana are phenotypically distinct, while others are highly conservative morphologically. Here we use an integrated approach to explore species delimitation in this complex. We redefine G. nana as a widespread taxon with complex genetic structure across the Kimberley of Western Australia and Top End of the Northern Territory, including a lineage with mtDNA introgressed from the larger-bodied G. multiporosa. We describe four new species with more restricted distributions within the G. nana complex. The new species are phylogenetically divergent and morphologically diagnosable, and include the relatively cryptic G. paranana sp. nov. from the western Northern Territory, the large-bodied G. pseudopunctata sp. nov. from the southern Kimberley ranges, G. granulum sp. nov., a small-bodied form with granules on the proximal lamellae from the north-west and southern Kimberley ranges and the small-bodied G. pluraporosa sp. nov. restricted to the northern Kimberley. Our revision largely stabilises the taxonomy of the G. nana complex, although further analyses of species limits among the remaining mostly parapatric lineages of G. nana sensu stricto are warranted.