Ecology of the Feral Cat, Felis catus (L.), in Souht-Eastern Australia III.* HOme Ranges and Population Ecology in Semiarid North-West Victoria

Jones, Edward; Coman, BJ

doi:10.1071/wr9820409

Cited by 92 publications

(89 citation statements)

References 14 publications

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“…Female cats reach sexual maturity between 6 and 8 months and males between 8 and 10 months and can breed 2-3 times a year. However, reproduction can be delayed (Jones and Coman 1982;Say et al 1999) as shown by Bester et al (2002), who reported that a drastic decrease of feral cats following eradication efforts on subantarctic Marion Island caused a decline in pregnancy rates and fecundity, possibly owing to a lower encounter rate between the sexes. Control efforts need to minimise gene flow to no more than one migrant per generation in order to decrease genetic diversity (Wright 1969) and thus create small or fragmented populations in which inbreeding is more likely to occur.…”

Section: Discussionmentioning

confidence: 99%

Using population genetic tools to develop a control strategy for feral cats (Felis catus) in Hawai'i

et al. 2007

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Abstract. Population genetics can provide information about the demographics and dynamics of invasive species that is beneficial for developing effective control strategies. We studied the population genetics of feral cats on Hawai'i Island by microsatellite analysis to evaluate genetic diversity and population structure, assess gene flow and connectivity among three populations, identify potential source populations, characterise population dynamics, and evaluate sex-biased dispersal. High genetic diversity, low structure, and high number of migrants per generation supported high gene flow that was not limited spatially. Migration rates revealed that most migration occurred out of West Mauna Kea. Effective population size estimates indicated increasing cat populations despite control efforts. Despite high gene flow, relatedness estimates declined significantly with increased geographic distance and Bayesian assignment tests revealed the presence of three population clusters. Genetic structure and relatedness estimates indicated male-biased dispersal, primarily from Mauna Kea, suggesting that this population should be targeted for control. However, recolonisation seems likely, given the great dispersal ability that may not be inhibited by barriers such as lava flows. Genetic monitoring will be necessary to assess the effectiveness of future control efforts. Management of other invasive species may benefit by employing these population genetic tools.

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Section: Discussionmentioning

confidence: 99%

Using population genetic tools to develop a control strategy for feral cats (Felis catus) in Hawai'i

et al. 2007

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“…Cats were classified according to sex, age, month and season of capture (see Daniels 1997), with age classed on the basis of body weight (Jones and Coman 1982) as: females: < 1.6 kg = 'juvenile', 1.6-2.5 kg = 'subadult', > 2.5 kg = 'adult', males: < 2.2 kg = 'juvenile', 2.2-3.5 kg = 'subadult', > 3.5 kg = 'adult'.…”

Section: Methodsmentioning

confidence: 99%

“…Other feral populations appear to have no seasonal variation in testes mass, but do show differences in other reproductive parameters (Jones and Coman 1982).…”

Section: Introductionmentioning

confidence: 99%

Seasonality and reproduction in wild-living cats in Scotland

et al. 2002

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2002. Seasonality and reproduction in wild-living cats in Scotland. Acta Theriologica 47: 73-84.The definition of the wildcat Felis silvestris Schreber, 1775 in Scotland is contentious, in light of long-term interbreeding with domestic cats F. catus Linnaeus, 1758. Two morphological groupings (Group 1 and Group 2) have previously been proposed to explain the variation found in wild-living cats in Scotland, with Group 1 cats closest to wildcats and Group 2 cats to domestic cats. Data from the reproductive tracts of 185 wild-living cat carcasses and evidence of reproductive activity in 31 live cats were analysed in order to compare reproductive activity between the morphological groups, and in relation to seasonality and existing data on wildcats and domestic cats. For males, Group 2 cats had a greater mean relative testes size than Group 1 cats. Estimated from corpora lutea, there was a suggestion that Group 1 females showed more seasonality in oestrous than Group 2 cats. In all wild-living cats, the mean litter size was 4.3 and estimated birth dates were throughout the year, but least in winter. A high number of pseudopregnancies were recorded. The results were consistent with the hypothesis that Group 2 cats are closer to domestic cats. However, the variation observed in the sample of wild-living cats reported here, suggested that reproduction was neither strictly seasonal nor outside the range observed in some feral cat populations.

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“…Density estimates in New Zealand range from 1 to 7/km 2 in farms and rural areas (Fitzgerald & Karl, 1986;Jones, 1977, Jones & Coman, 1982Langham, 1992;Langham & Porter, 1991). The significant variance in reported density means that estimates from other countries or cities are not reliable measures for local decision-making.…”

Section: Introductionmentioning

confidence: 99%

Stray cats in Auckland, New Zealand: Discovering geographic information for exploratory spatial analysis

Aguilar

Farnworth

2012

Applied Geography

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Stray cats are a common feature of urban landscapes and are associated with issues of animal welfare and negative environmental impacts. Management, planning and decision-making require readily accessible information on stray cats. However, much of the existing data is not immediately useful for a geographic information system (GIS) in terms of format, content and explicit location information. Spreadsheets we obtained from a single large shelter in the Auckland region. They contained records of stray cat pickups and admissions for an entire year (n = 8573) of which 56.4% (n = 4834) contained data that could be processed to derive relevant spatial information. The resulting data consisted of identified roads and areas of Auckland where the stray cats were found. Published census databases and shapefiles were matched with the data to build a GIS of stray cats. Global and local regression analysis was employed to discover spatial distribution characteristics including the identification of areas with relatively high and low concentrations of stray cats and to explore relationships between socioeconomic condition and stray cat density. Significant clustering is more evident in South Auckland than elsewhere in the region. Specific geographical information is valuable, not only for understanding population dynamics of stray cats, but also to allow spatial and temporal targeting of resources to minimise their impact and promote responsible ownership.

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Ecology of the Feral Cat, Felis catus (L.), in Souht-Eastern Australia III.* HOme Ranges and Population Ecology in Semiarid North-West Victoria

Cited by 92 publications

References 14 publications

Using population genetic tools to develop a control strategy for feral cats (Felis catus) in Hawai'i

Using population genetic tools to develop a control strategy for feral cats (Felis catus) in Hawai'i

Seasonality and reproduction in wild-living cats in Scotland

Stray cats in Auckland, New Zealand: Discovering geographic information for exploratory spatial analysis

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