Download Applied Population and Community Ecology: The Case of Feral by Jim Hone PDF

By Jim Hone

Content material:
Chapter 1 creation (pages 1–8):
Chapter 2 utilized inhabitants and neighborhood Ecology (pages 09–19):
Chapter three atmosphere (pages 20–28):
Chapter four inhabitants Ecology of Feral Pigs (pages 29–53):
Chapter five floor Disturbance and Feral Pigs (pages 54–70):
Chapter 6 Feral Pig inhabitants administration (pages 71–96):
Chapter 7 group Ecology (pages 97–120):
Chapter eight the long run: administration thoughts (pages 121–140):
Chapter nine Conclusions (pages 141–146):

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Additional info for Applied Population and Community Ecology: The Case of Feral Pigs in Australia

Sample text

After Hone 2002). to higher elevations in summer and lower elevations in winter, as described later in this chapter. At one site in Namadgi National Park, Shanahans Mountain, there were sufficient feral pigs and pig dung observed from June 1985 to May 1986 to estimate a relationship between area counts of feral pigs and plot counts of fresh dung pellets. Feral pigs were classified as juvenile (<3 months old), subadult (3–12 months old) or adult (>12 months old) and the mean counts of subadult and adult pigs were used in the analyses.

Studies of feral pigs and their ground-rooting distribution (see Chapter 5) found evidence of feral pigs in all 29 of the 1 km2 grid squares surveyed. Combined with the movement studies described above, a conclusion is that the distribution pattern of feral pigs in Namadgi National Park can be described as continuous. A metapopulation structure, with occupied patches interspersed with unoccupied habitat and movement of animals between patches (Hanski 1999), was not observed. Similarly, there was no evidence of a set of discrete, independent, patches of feral pig-occupied habitat, such as would occur with remnant patches of a former continuous distribution.

Related studies have reported that piglets in a litter can be sired by different boars, as shown by paternity analysis (Spencer et al. 2005; Delgado-Acevedo et al. 2010). 2), implying close to a stable population. That is inevitable, as it was assumed that a stable population occurred (Saunders 1993) in order to estimate juvenile survival. 5). Note this is reproductive output at the population, not individual, level, which incorporates effects of survival, not simply per capita fecundity. 8). 5).

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