title: Experimenting with ecosystem interaction networks in search of threshold potentials in real-world marine ecosystems

authors: Thrush, Simon F.

subjects: Austrovenus stutchburyi

abstract: Thresholds profoundly affect our understanding and management of ecosystem dynamics, but we have yet to develop practical techniques to assess the risk that thresholds will be crossed. Combining ecological knowledge of critical system interdependencies with a large-scale experiment, we tested for breaks in the ecosystem interaction network to identify threshold potential in real-world ecosystem dynamics. Our experiment with the bivalves Macomona liliana and Austrovenus stutchburyi on marine sandflats in New Zealand demonstrated that reductions in incident sunlight changed the interaction network between sediment biogeochemical fluxes, productivity, and macrofauna. By demonstrating loss of positive feedbacks and changes in the architecture of the network, we provide mechanistic evidence that stressors lead to break points in dynamics, which theory predicts predispose a system to a critical transition.

text: Experimenting with ecosystem interaction networks in search of threshold potentials in real-world marine ecosystems Thresholds profoundly affect our understanding and management of ecosystem dynamics, but we have yet to develop practical techniques to assess the risk that thresholds will be crossed. Combining ecological knowledge of critical system interdependencies with a large-scale experiment, we tested for breaks in the ecosystem interaction network to identify threshold potential in real-world ecosystem dynamics. Our experiment with the bivalves Macomona liliana and Austrovenus stutchburyi on marine sandflats in New Zealand demonstrated that reductions in incident sunlight changed the interaction network between sediment biogeochemical fluxes, productivity, and macrofauna. By demonstrating loss of positive feedbacks and changes in the architecture of the network, we provide mechanistic evidence that stressors lead to break points in dynamics, which theory predicts predispose a system to a critical transition.

year: 2014

title: Re-embodying (preservice middle years) teachers? An attempt to reposition the body and its presence in teaching and learning

authors: lisahunter

subjects: body

abstract: This four-part story is about one teacher educator’s attempt to embody praxis as a form of academic work, emphasizing the importance of the corporeal in learning and teaching. I describe the inter-related context (1) of my embodied self, the teacher education course I constructed, and theory employed in mediating course practices. Evidence of praxis in emergence (2) is illustrated through written text and visual artefacts of the operationalized assessment. I discuss (3) using embodied subjectivities, the importance of practice/praxis, and how we operationalize discourse in education to then pose questions (4) as flows for teacher educators, preservice teachers and teachers in their classpaces.

text: Re-embodying (preservice middle years) teachers? An attempt to reposition the body and its presence in teaching and learning This four-part story is about one teacher educator’s attempt to embody praxis as a form of academic work, emphasizing the importance of the corporeal in learning and teaching. I describe the inter-related context (1) of my embodied self, the teacher education course I constructed, and theory employed in mediating course practices. Evidence of praxis in emergence (2) is illustrated through written text and visual artefacts of the operationalized assessment. I discuss (3) using embodied subjectivities, the importance of practice/praxis, and how we operationalize discourse in education to then pose questions (4) as flows for teacher educators, preservice teachers and teachers in their classpaces.

year: 2010

title: An indigenous psychologies teaching and research hub : Enabling our resources, strengths and histories

authors: Nikora, Linda Waimarie

abstract: This paper was presented as part of an informal indigenous psychologies dialogue session at the Australian Psychological Society's annual conference. In this paper, we present the concept of an indigenous psychologies teaching and research hub that reduces distance, helps students remain in community, uses resources efficiency, and has the capacity to bring indigenous psychologist and academics into closer communication.

text: An indigenous psychologies teaching and research hub : Enabling our resources, strengths and histories This paper was presented as part of an informal indigenous psychologies dialogue session at the Australian Psychological Society's annual conference. In this paper, we present the concept of an indigenous psychologies teaching and research hub that reduces distance, helps students remain in community, uses resources efficiency, and has the capacity to bring indigenous psychologist and academics into closer communication.

year: 2014