Aim Conservation practitioners use biological surveys to ascertain whether or not a site is
occupied by a particular species. Widely used statistical methods estimate the probability …

The application of the 'ecosystem approach'to marine conservation management demands
knowledge of the distribution patterns of the target species or communities. This information …

Many previous comparisons of multiple sampling methods have assumed that detection
probabilities for each method are either constant or equal to one. We used 4 sampling …

The status of early-successional habitats and wildlife species associated with them recently
has become a concern in the eastern United States. Although federal farm programs have …

Advances in bioacoustic technology, such as the use of automatic recording devices, allow
wildlife monitoring at large spatial scales. However, such technology can produce enormous …

Call surveys used to monitor breeding choruses of anuran amphibians generate index
values that are frequently used to represent the number of male frogs present, but few …

Reliable estimates of population parameters derived from survey methods are essential for
decision making in management of endangered species. We evaluated whether point-count …

We used snow‐tracking surveys to determine the probability of detecting Canada lynx Lynx
canadensis in known areas of lynx presence in the northern Rocky Mountains, Montana …

Context Failure to acknowledge potential bias from imperfect detection of cryptic organisms
such as frogs may compromise survey and monitoring programmes targeting these species …

Auditory surveys are being used increasingly to monitor amphibians and assess amphibian
declines. Interobserver differences in detected number of species during amphibian call …