Results 121 to 130 of about 696,250 (303)

Capture-recapture studies with incomplete mixed categorical and continuous covariates

open access: yes, 2008
Registrations in epidemiological studies suffer from incompleteness, thus a general consensus is to use capture-recapture models. Inclusion of covariates which relate to the capture probabilities has been shown to improve the estimate of population size.
Eugene Zwane   +6 more
core  

Estimating demographic parameters for capture-recapture data in the presence of multiple mark types

open access: yes, 2011
In mark-recapture studies, various techniques can be used to uniquely identify individual animals, such as ringing, tagging or photo-identification using natural markings.
Pomeroy, Patrick   +2 more
core   +1 more source

Unmanned Aerial Systems for Corrosion Detection: Multi‐Sensor Technologies, Challenges, and Opportunities for Next‐Generation Inspection

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Corrosion remains a critical threat to the integrity and service life of infrastructure in industries such as oil, gas, construction, renewable energy, and transportation. Traditional inspection methods, being labor‐intensive, hazardous, and often subjective, fall short in addressing modern inspection demands.
Alhossein Alharbi   +3 more
wiley   +1 more source

Estimating abundance of rare, small mammals: A case study of the Key Largo woodrat (Neotoma floridana smalli)

open access: yes, 2011
Estimates of animal abundance or density are fundamental quantities in ecology and conservation, but for many species such as rare, small mammals, obtaining robust estimates is problematic.
Potts, Joanne M.
core  

Appendix B. Capture-recapture-recovery models for the French-wintering Woodcock population index.

open access: yes, 2016
Capture-recapture-recovery models for the French-wintering Woodcock population ...
Yves Ferrand (2923230)   +5 more
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Hydropower Operations Reduce Alluvial Nesting Habitat and Alter Riverine Turtle Population Demographics

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Hydropower management has altered discharge regimes of large rivers worldwide, reducing sediment mobilization and early‐seral conditions essential for many riverine species. Spiny softshell turtles (Apalone spinifera) rely on alluvial habitats for nesting and may serve as sentinel species to assess the effects of regulated flow regimes and ...
Kayhan Ostovar   +6 more
wiley   +1 more source

Hepatitis A surveillance in England--how many cases are not reported and does it really matter? [PDF]

open access: yes, 2006
Underreporting of hepatitis A infection in England may be high and a number of outbreaks have occurred undetected by routine surveillance. We evaluated surveillance of hepatitis A cases by employing capture-recapture analysis on data from two distinct ...
Grant, A   +3 more
core   +1 more source

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Towards effective and harmonized lion survey methodologies: A systematic review of practice across Africa

open access: yesGlobal Ecology and Conservation
Understanding the population status of a species is vital for their conservation. Over the last two decades, multiple methods for surveying lion (Panthera leo) populations have been designed and tested.
Samantha K. Nicholson   +6 more
doaj   +1 more source

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