Publications by authors named "Peggy D Rismiller"

The short-beaked echidna is an iconic Australian animal and the most-widespread native mammal, inhabiting diverse environments. The cryptic nature of echidnas has limited research into their ecology in most areas; however, from the well-researched and endangered Kangaroo Island echidna population, we understand that the threats include habitat loss, roads, and invasive species. To obtain more information about echidnas Australia-wide, we established the Echidna Conservation Science Initiative (EchidnaCSI) citizen science project.

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During the course of this 12 year field study body masses of 11 hatchling echidnas (Tachyglossus aculeatus multiaculeatus) and 25 pouch young between the ages of 5 and 60 days were recorded. Body mass increased from 0.3 to approximately 50 g in the first half of pouch life.

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Voluntary body temperature selection of unrestrained Lacerta viridis revealed consistant photoperiod entrained diel patterns. Each daily cycle was characterized by an elevation in body temperature (T ) to a high level plateau which declined at the onset of scotophase to a low level; both of which were maintained within narrow ranges.Under natural photoperiod in fall, lizards responded to shorter days by sinking low level T 's and expanding the duration of these low levels until no rhythmicity was shown.

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