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## Density estimation in live-trapping studies (2004)

Venue: | Oikos |

Citations: | 14 - 1 self |

### Citations

654 |
Introduction to distance sampling: estimating abundance of biological populations
- Buckland, Anderson, et al.
- 2001
(Show Context)
Citation Context ...ate Bag 1930, Dunedin, New Zealand, (effordm@landcareresearch.co.nz). Population density is the single parameter of greatest intrinsic interest to biologists studying population dynamics (Krebs 1985, =-=Buckland et al. 1993-=-, Turchin 1998). More population data probably have been collected on small mammals by trapping than by any other method (Thompson et al. 1998), yet the relationship between these data and population ... |

76 | Estimation of the size of a closed population when capture probabilities vary among animals - Burnham, Overton - 1978 |

32 |
Close-RangeCamera Calibration
- Brown
- 1971
(Show Context)
Citation Context ...ions confirm these relationships (Fig. 2). The actual functions in each case depend in unknown ways on the trap layout and number of trapping occasions. Monte Carlo simulation and inverse prediction (=-=Brown 1982-=-, Pledger and Efford 1998) allow us to circumvent analytical intractability and exploit the monotonic relationships of Fig. 2. The relationships may be summarised as follows. Let yi(N̂i; p̂i; d̄i) be... |

30 |
Estimating Animal Abundance - Closed Populations
- Borchers, Buckland, et al.
- 2002
(Show Context)
Citation Context ...only one animal and one trap, the probability of capture is a declining function of distance d between the range centre and trap, directly analogous to a detection function g(d) in distance analysis (=-=Borchers et al. 2002-=-). For this function we require a minimum of two parameters, g0 for overall magnitude and s for the spatial scale over which capture probability declines. Although a half-normal detection function (Fi... |

15 | Estimating the population size for capture– recapture data with unequal catchability - Chao - 1987 |

9 | Quantifying unequal catchability and its effect on survival estimates in an actual population - Carothers - 1979 |

8 |
Calculation of home range and density of small mammals
- Calhoun, Casby
- 1958
(Show Context)
Citation Context ...mates of g0 and s have utility as trap-free measures of individual behaviour. There are numerous caveats in the literature regarding the interpretation of trap-revealed home range data (Stickel 1954, =-=Calhoun and Casby 1958-=-, Gurnell and Gipps 1989). The present method provides estimates that are comparable between different trap layouts, excepting the apparent bias in g0 from trap saturation (above). Ecologists are alre... |

6 |
A live-trapping study of Australian brushtailed possums, Trichosurus vulpecula (Kerr
- Crawley
- 1973
(Show Context)
Citation Context ...oduction from Australia in the nineteenth century. Their population dynamics in mixed native forest have been studied by capture/ recapture in the Orongorongo Valley near Wellington over many years (=-=Crawley 1973-=-, Efford 1998). Since 1996 a grid of 167 traps at 30-m spacing in an area of about 14 ha has been operated for 5 consecutive days three times each year (Efford 2000, unpubl. results). A broad shingle ... |

3 |
Home range size and methods of estimating snowshoe hare densities
- Boutin
- 1984
(Show Context)
Citation Context ...sity N̂/AG differs from true density by a factor P̄A equal to the average proportion of time that trappable individuals spend within the perimeter of the grid. P̄A may be estimated by radiotelemetry (=-=Boutin 1984-=-, White and Shenk 2001) or possibly by other tracking methods (Marten 1972). Precise estimation of P̄A is likely to be expensive because a large and representative sample of locations is required. The... |

2 |
Density estimation of small mammal populations using a trapping web and distance sampling methods. Ecology
- Anderson, Burnham, et al.
- 1983
(Show Context)
Citation Context ...bining radiotelemetry data with the Petersen estimator was suggested by Eberhardt (1990). Alternative methods for trapping data alone rely on specific trap configurations, particularly trapping webs (=-=Anderson et al. 1983-=-, Wilson and Anderson 1985c, Link and Barker 1994). As currently implemented, these methods do not use information from recaptures. A recent validation study of trapping webs gave equivocal results fo... |

1 |
Density estimation as a function of live-trapping grid and home range size
- Bondrup-Neilsen
- 1983
(Show Context)
Citation Context ...nsson 1969, Tanaka 1972, 1974, 1980, Hagen et al. 1973, Stenseth et al. 1974, Smith et al. 1975, Swift and Steinhorst 1976, Otis et al. 1978, Stenseth and Hansson 1979, Schroder 1981, Van Horne 1982, =-=Bondrup-Neilsen 1983-=-, Wilson and Anderson 1985a, Jett and Nichols 1987, Gurnell and Gipps 1989, Thompson et al. 1998, Parmenter et al. 2003). The ‘‘nested sub-grid’’ method for estimating W (MacLulich 1951, Otis et al. 1... |