As reported in the Bega District News this week, a koala was sighted early in the morning and captured on video, as it ran down the Tathra-Bermagui road. The observer, Michael Clarke, stopped his truck and took the video as the critter scrambled up an embankment and climbed the nearest small tree, a black forest oak. While Mr Clarke’s sighting made his day, describing the experience as ‘awesome’, he also expressed concern about the threat posed by foxes and suggested corridors to ‘allow safe travel across roads’.
ABC radio interviewed the NPWS’s Chris Allen who thought the animal could be a male, but appeared to be young and healthy. Lucky for it, because the last koala found on this road was a bit groggy, taken to a vet and subsequently released kilometers from where it was found.
What Allen didn’t mention was the potential that this young koala has been kicked out of its mothers home-range and is looking for somewhere suitable to live. The issue being, unless an older animal has died, finding somewhere suitable may be difficult. Mr Allen did mention the koala surveys have been ongoing for ten years, but nothing about publicly releasing any results. This lack of accountability seems to contrast with his frequently repeated talk about how important these koalas are.
However, one of the reasons for the lack of information could relate to the proposed roll-over of the Regional Forest Agreements. One outcome from the flora reserve decision being the increased uncertainty about timber supplies and the data required to reduce this uncertainty.
The map below provides the locations of timber inventory plots (red dots) undertaken on a regularised grid for the Southern RFA and locations of the first koala plots (light green dots), in the Eden RFA region. Those of greatest interest are on the Murrah Soil landscape (orange). Clearly re-measuring the plots in the Southern region would provide more certainty about timber supplies. Similarly, the release of data from the second round of federally funded koala surveys in the Eden region, would be desirable.
While the chances of either the state or federal governments releasing these data may be low. It would seem sensible for the conservation movement to demand both the release of the second koala survey data and data from the re-measurement of the Southern timber inventory plots.
While the major issue is what grows back after logging and the RFAs are supposed to be based on the National Forest Policy Statement. Among several interesting research articles, recently published in Functional Ecology, is one titled ‘Rewilded mammal assemblages reveal the missing ecological functions of granivores’. Previous arid land research, undertaken where most of the mammals were functionally extinct, had concluded ants were the major predator of plant seeds.
However, this recent research was undertaken in fenced areas, at Scotia wildlife sanctuary and the Arid recovery reserve, where native animals have been re-introduced. In brief the researchers found animals are the major seed predators and “. . . hypothesize that the loss of omnivorous mammals may be a factor that has facilitated shrub encroachment in arid Australia.”
Coastal forests are facing a similar situation and the increasing proportion of non-eucalyptus trees, like black forest oak, may reflect the loss of species critical for forest health. While these matters may not rate highly in the NSW government, it would be unfair to accuse organisations like the NPWS of doing nothing. Regrettably, the new road signs in the photo below suggest an odd set of priorities and doing nothing would have been cheaper.