Detecting population declines over large areas with presence‐absence, time‐to‐encounter, and count survey methods
JF Pollock - Conservation Biology, 2006 - Wiley Online Library
Ecologists often discount presence‐absence surveys as a poor way to gain insight into
population dynamics, in part because these surveys are not amenable to many standard …
population dynamics, in part because these surveys are not amenable to many standard …
Modeling false positive detections in species occurrence data under different study designs
The occurrence of false positive detections in presence–absence data, even when they
occur infrequently, can lead to severe bias when estimating species occupancy patterns …
occur infrequently, can lead to severe bias when estimating species occupancy patterns …
Abundance estimation of unmarked animals based on camera‐trap data
The rapid improvement of camera traps in recent decades has revolutionized biodiversity
monitoring. Despite clear applications in conservation science, camera traps have seldom …
monitoring. Despite clear applications in conservation science, camera traps have seldom …
Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly
Few species are likely to be so evident that they will always be detected when present.
Failing to allow for the possibility that a target species was present, but undetected, at a site …
Failing to allow for the possibility that a target species was present, but undetected, at a site …
Opportunistic citizen science data of animal species produce reliable estimates of distribution trends if analysed with occupancy models
AJ Van Strien, CAM Van Swaay… - Journal of Applied …, 2013 - Wiley Online Library
Many publications documenting large‐scale trends in the distribution of species make use of
opportunistic citizen data, that is, observations of species collected without standardized …
opportunistic citizen data, that is, observations of species collected without standardized …
Presence-only data and the EM algorithm
In ecological modeling of the habitat of a species, it can be prohibitively expensive to
determine species absence. Presence-only data consist of a sample of locations with …
determine species absence. Presence-only data consist of a sample of locations with …
Estimating and dealing with detectability in occupancy surveys for forest owls and arboreal marsupials
BA Wintle, RP Kavanagh… - The Journal of …, 2005 - Wiley Online Library
Surveys that record the presence or absence of fauna are used widely in wildlife
management and research. A false absence occurs when an observer fails to record a …
management and research. A false absence occurs when an observer fails to record a …
Occupancy estimation and modeling with multiple states and state uncertainty
The distribution of a species over space is of central interest in ecology, but species
occurrence does not provide all of the information needed to characterize either the well …
occurrence does not provide all of the information needed to characterize either the well …
Spatially explicit models for inference about density in unmarked or partially marked populatioins
RB Chandler, JA Royle - The Annals of Applied Statistics, 2013 - JSTOR
Recently developed spatial capture—recapture (SCR) models represent a major advance
over traditional capture—recapture (CR) models because they yield explicit estimates of …
over traditional capture—recapture (CR) models because they yield explicit estimates of …
Using species distribution and occupancy modeling to guide survey efforts and assess species status
Habitat loss and fragmentation continue to be major issues affecting the persistence and
conservation of species, but identification of critical habitat remains a challenge. Species …
conservation of species, but identification of critical habitat remains a challenge. Species …