| Titre : | Wildlife Research : Management and Conservation 32(3) - 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
S. J. Ball, Auteur ;
D. Ramsey, Auteur ;
G. Nugent, Auteur ;
B. Warburton, Auteur ;
M. Efford, Auteur
Using field data from brushtail possums (Trichosurus vulpecula), we present a method for modelling wildlife detection probabilities. Whereas detection functions typically ( e. g. for distance sampling) describe the probability of direct human ob[...]
Article
G. C. White, Auteur
One of the most pervasive uses of indices of wildlife populations is uncorrected counts of animals. Two examples are the minimum number known alive from capture and release studies, and aerial surveys where the detection probability is not estim[...]
Article
R. M. Engeman, Auteur
Monitoring animal populations is an essential component of wildlife research and management. Population indices can be efficient methods for monitoring populations when more labour-intensive density-estimation procedures are impractical or inval[...]
Article
G. W. Witmer, Auteur
The accurate estimation of wildlife population density is difficult and requires considerable investment of resources and time. Population indices are easier to obtain but are influenced by many unknowns and the relationships to actual populatio[...]
Article
J. P. Tracey, Auteur ;
P. J. S. Fleming, Auteur ;
G. J. Melville, Auteur
Although aerial surveys are an effective and commonly used method of monitoring wildlife populations, variable detection probability may result in unreliable indices or biased estimates of absolute abundance. Detection probability can vary betwe[...]
Article
We apply a new algorithm for spatially simulating animal trapping that utilises a detection function and allows for competition between animals and traps. Estimates of the parameters of the detection function from field studies allowed us to sim[...]
Article
S. A. Field, Auteur ;
A. J. Tyre, Auteur ;
K. H. Thorn, Auteur ;
P. J. O'Connor, Auteur ;
H. P. Possingham, Auteur
Demonstrating the existence of trends in monitoring data is of increasing practical importance to conservation managers wishing to preserve threatened species or reduce the impact of pest species. However, the ability to do so can be compromised[...]
Article
D. A. Whisson, Auteur ;
R. M. Engeman, Auteur ;
K. Collins, Auteur
Accurate density estimates of rodents are frequently difficult or cost-prohibitive to determine. Thus, a number of techniques ( track plates, monitoring blocks, chew cards/sticks, apple slice index, trapping) are often used to index rodent popul[...]
