Warra Site, 5-minute Point-Count Bird Survey Data, Southern Forests Experimental Forest Landscape, 2010-2011 

The record contains information on the five-minute, point-count, bird survey data conducted in the Southern Forests Experimental Forest Landscape (SFEFL), Warra Site for the period between 2010 to 2011. Data such as age class of study plots, Landscape Disturbance Index (LDI), bird survey period, bird species identification details, observation distance, number of individuals, height and direction of observation at a minimum distance of 25 meters are provided. 

We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging. The project was funded by the Forest and Wood Products Australia Project PNC 142-0809: Persistence of mature forest biodiversity elements in a production forest landscape managed under a Regional Forest Agreement 

The data set was collected as part of a broader study examining the responses of bird, plant and beetle species to the intensity of disturbance in the landscape surrounding plots of either mature tall, wet eucalypt forest or of 25-50 year-old silvicultural regeneration following clear-fell harvesting. The study tested the null hypotheses that species persisting in patches of mature forest or re-colonising patches of silvicultural regeneration would be insensitive to the intensity of disturbance in the surrounding landscape. The study was done in 2010-2011 in the SFEFL – a 32 x 35 area anchored on the Warra Long-Term Ecological Research site and extending eastwards to the estuary of the Huon River. The surveys of the three taxonomic groups were done in fifty-six, 50 x 50 m plots – 28 each in mature eucalypt forest and silvicultural regeneration. Those plots were located to sample the measured range of average disturbance intensity (based on the mix of vegetation classes) at three scales – 0.5, 1 and 2 km, in the circular landscapes surrounding the plots. The bird data set was based on 5-minute point-count surveys of each 50 x 50 m plot-corner done on sixteen separated visits between February 2010 and March 2011. 

Data not provided.