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Effect Of Captivity On Morphology: Negligible Changes In External Morphology Mask Significant Changes In Internal Morphology, Stephanie Kirsten Courtney Jones, Adam J. Munn, Phillip G. Byrne Jan 2018

Effect Of Captivity On Morphology: Negligible Changes In External Morphology Mask Significant Changes In Internal Morphology, Stephanie Kirsten Courtney Jones, Adam J. Munn, Phillip G. Byrne

Faculty of Science, Medicine and Health - Papers: part A

Captive breeding programmes are increasingly relied upon for threatened species management. Changes in morphology can occur in captivity, often with unknown consequences for reintroductions. Few studies have examined the morphological changes that occur in captive animals compared with wild animals. Further, the effect of multiple generations being maintained in captivity, and the potential effects of captivity on sexual dimorphism remain poorly understood. We compared external and internal morphology of captive and wild animals using house mouse (Mus musculus) as a model species. In addition, we looked at morphology across two captive generations, and compared morphology between sexes. We found no …


Long-Term Effect Of Prescribed Burning Regimes And Logging On Coarse Woody Debris In South-Eastern Australia, Mitchell G. Stares, Luke Collins, Bradley S. Law, Kris French Jan 2018

Long-Term Effect Of Prescribed Burning Regimes And Logging On Coarse Woody Debris In South-Eastern Australia, Mitchell G. Stares, Luke Collins, Bradley S. Law, Kris French

Faculty of Science, Medicine and Health - Papers: part A

Coarse woody debris (CWD) is vital within forest ecosystems for an array of fauna. Forest management practices, such as prescribed burning and logging, influence the creation or loss of CWD. We examined the effect of long-term prescribed burning and logging on (i) the abundance of hollow-bearing CWD, (ii) the volume of CWD in different decay classes, (iii) the probability of hollow presence, and (iv) the size of hollows at a long- term (28 years) experimental site. Volume of CWD in moderate and advanced stages of decomposition decreased with increasing fire frequency while moderately decomposed material was higher in logged plots. …


Soil Carbon In Australian Fire-Prone Forests Determined By Climate More Than Fire Regimes, Robert Sawyer, Ross A. Bradstock, Michael Bedward, R John Morrison Jan 2018

Soil Carbon In Australian Fire-Prone Forests Determined By Climate More Than Fire Regimes, Robert Sawyer, Ross A. Bradstock, Michael Bedward, R John Morrison

Faculty of Science, Medicine and Health - Papers: part A

Knowledge of global C cycle implications from changes to fire regime and climate are of growing importance. Studies on the role of the fire regime in combination with climate change on soil C pools are lacking. We used Bayesian modelling to estimate the soil % total C (% C Tot ) and % recalcitrant pyrogenic C (% RPC) from field samples collected using a stratified sampling approach. These observations were derived from the following scenarios: 1. Three fire frequencies across three distinctive climate regions in a homogeneous dry sclerophyll forest in south-eastern Australia over four decades. 2. The effects of …