Now showing items 1-5 of 5
Density estimation and time trend analysis of large herbivores in Nagarhole, India
(2005) - Thesis,
Density estimates for six large herbivore species were obtained through analysis of line transect data from Nagarhole National Park, south-western India, collected between 1989 and 2000. These species were Chital (Axis ...
Surveying abundance and stand type associations of Formica aquilonia and F. lugubris (Hymenoptera: Formicidae) nest mounds over an extensive area : Trialing a novel method
(2012-01-03) - Journal article,
Red wood ants are ecologically important members of woodland communities, and some species are of conservation concern. They occur commonly only in certain habitats in Britain, but there is limited knowledge of their numbers ...
Using hidden Markov models to deal with availability bias on line transect surveys
(2013) - Journal article,
We develop estimators for line transect surveys of animals that are stochastically unavailable for detection while within detection range. The detection process is formulated as a hidden Markov model with a binary ...
Inter-annual and seasonal trends in cetacean distribution, density and abundance off southern California
(2015-02) - Journal article,
Trends in cetacean density and distribution off southern California were assessed through visual line-transect surveys during thirty-seven California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises from July ...
Extinction is imminent for Mexico’s endemic porpoise unless fishery bycatch is eliminated
(2017-10-12) - Journal item,
The number of Mexico’s endemic porpoise, the vaquita (Phocoena sinus), is collapsing primarily due to bycatch in illegal gillnets set for totoaba (Totoaba macdonaldi), an endangered fish whose swim bladders are exported ...