Results 21 to 30 of about 1,688,460 (309)

Comparison of semiautomated bird song recognition with manual detection of recorded bird song samples

Avian Conservation and Ecology, 2017
Automated recording units are increasingly being used to sample wildlife populations. These devices can produce large amounts of data that are difficult to process manually.
Lisa A. Venier, Marc J. Mazerolle, Anna Rodgers, Ken A. McIlwrick, Stephen Holmes, Dean Thompson   +5 more
doaj   +1 more source

Habitat models to predict wetland bird occupancy influenced by scale, anthropogenic disturbance, and imperfect detection

Ecosphere, 2017
Understanding species–habitat relationships for endangered species is critical for their conservation. However, many studies have limited value for conservation because they fail to account for habitat associations at multiple spatial scales ...
Wesley J. Glisson, Courtney J. Conway, Christopher P. Nadeau, Kathi L. Borgmann   +3 more
doaj   +1 more source

Modeling detection probability to improve marsh bird surveys in southern Canada and the Great Lakes states

Avian Conservation and Ecology, 2016
Marsh birds are notoriously elusive, with variation in detection probability across species, regions, seasons, and different times of day and weather.
Douglas C. Tozer, Kiel L. Drake, C. Myles. Falconer   +2 more
doaj   +1 more source

Effects of camera‐trap placement and number on detection of members of a mammalian assemblage

Ecosphere, 2021
A central goal in camera‐trapping (CT) studies is to maximize detection probability and precision of occupancy estimates while minimizing the number of CTs to reduce equipment and labor costs.
Tim R. Hofmeester, Neri H. Thorsen, Joris P. G. M. Cromsigt, Jonas Kindberg, Henrik Andrén, John D. C. Linnell, John Odden   +6 more
doaj   +1 more source

Filter Bank Multi-carrier Waveform Design for Low Probability of Intercepting Joint Radar and Communication System

Leida xuebao, 2023
Cyclic prefixes in joint radar and communication systems based on Orthogonal Frequency Division Multiplexing (OFDM) and low probability of interception lead to weak radar echo masking on the battlefield.
Wanlu LI, Zheng XIANG, Peng REN
doaj   +1 more source

Detection probabilities for sessile organisms [PDF]

Ecosphere, 2016
AbstractEstimation of population sizes and species ranges is central to population and conservation biology. It is widely appreciated that imperfect detection of mobile animals must be accounted for when estimating population size from presence–absence data.
Gabriele M. Berberich, Carsten F. Dormann, Dietrich Klimetzek, Martin B. Berberich, Nathan J. Sanders, Aaron M. Ellison   +5 more
openaire   +4 more sources

Improved energy detector for random signals in Gaussian noise [PDF]

, 2010
New and improved energy detector for random signals in Gaussian noise is proposed by replacing the squaring operation of the signal amplitude in the conventional energy detector with an arbitrary positive power operation.
Chen, Yunfei
core   +1 more source

Multi-Target Tracking in Multi-Static Networks with Autonomous Underwater Vehicles Using a Robust Multi-Sensor Labeled Multi-Bernoulli Filter

Journal of Marine Science and Engineering, 2023
This paper proposes a centralized MTT method based on a state-of-the-art multi-sensor labeled multi-Bernoulli (LMB) filter in underwater multi-static networks with autonomous underwater vehicles (AUVs). The LMB filter can accurately extract the number of
Yuexing Zhang, Yiping Li, Shuo Li, Junbao Zeng, Yiqun Wang, Shuxue Yan   +5 more
doaj   +1 more source

Knowing your limits: estimating range boundaries and co‐occurrence zones for two competing plethodontid salamanders

Ecosphere, 2019
Understanding threats to species persistence requires knowledge of where species currently occur. We explore methods for estimating two important facets of species distributions, namely where the range limit occurs and how species interactions structure ...
S. M. Amburgey, D. A. W. Miller, A. Brand, A. Dietrich, E. H. Campbell Grant   +4 more
doaj   +1 more source

Confidence Probability versus Detection Probability [PDF]

, 2005
In a discovery sampling activity the auditor seeks to vet an inventory by measuring (or inspecting) a random sample of items from the inventory. When the auditor finds every sample item in compliance, he must then make a confidence statement about the whole inventory.
openaire   +2 more sources