scholarly journals Understanding environmental DNA detection probabilities: A case study using a stream-dwelling char Salvelinus fontinalis

2016 ◽  
Vol 194 ◽  
pp. 209-216 ◽  
Author(s):  
Taylor M. Wilcox ◽  
Kevin S. McKelvey ◽  
Michael K. Young ◽  
Adam J. Sepulveda ◽  
Bradley B. Shepard ◽  
...  
Keyword(s):  
Salvelinus Fontinalis ◽  
Dna Detection ◽  
Environmental Dna ◽  
Detection Probabilities

scholarly journals Effects of preservation strategies on environmental DNA detection and quantification using ddPCR

2021 ◽  
Author(s):  
Quentin Mauvisseau ◽  
David Halfmaerten ◽  
Sabrina Neyrinck ◽  
Alfred Burian ◽  
Rein Brys
Keyword(s):  
Dna Detection ◽  
Environmental Dna ◽  
Detection And Quantification

scholarly journals Environmental DNA as a ‘Snapshot’ of Fish Distribution: A Case Study of Japanese Jack Mackerel in Maizuru Bay, Sea of Japan

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0149786 ◽  
Author(s):  
Satoshi Yamamoto ◽  
Kenji Minami ◽  
Keiichi Fukaya ◽  
Kohji Takahashi ◽  
Hideki Sawada ◽  
...  
Keyword(s):  
Sea Of Japan ◽  
Environmental Dna ◽  
Fish Distribution ◽  
Jack Mackerel ◽  
Japanese Jack Mackerel

Problems with Avian Point Counts for Estimating Density of Northern Bobwhite—A Case Study

2011 ◽  
Vol 2 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Roger D. Applegate ◽  
Robert E. Kissell ◽  
E. Daniel Moss ◽  
Edward L. Warr ◽  
Michael L. Kennedy
Keyword(s):  
Count Data ◽  
Distance Sampling ◽  
Bird Species ◽  
Northern Bobwhite ◽  
Model Fit ◽  
Point Count ◽  
Point Counts ◽  
Occupancy Estimation ◽  
Detection Probabilities

Abstract Point count data are used increasingly to provide density estimates of bird species. A favored approach to analyze point count data uses distance sampling theory where model selection and model fit are important considerations. We used uniform and half normal models and assessed model fit using χ2 analysis. We were unsuccessful in fitting models to 635 northern bobwhite Colinus virginianus observations from 85 avian point locations spanning 6 y (P ≤ 0.05). Most observations (74%) occurred in the outermost (>100-m) distance radius. Our results violated the assumptions that all observations at the point are detected. The assumption that birds were assigned to the correct distance interval also was probably violated. We caution managers in implementing avian point counts with distance sampling when estimating northern bobwhite population density. We recommend exploring other approaches such as occupancy-estimation and modeling for estimating detection probabilities.

scholarly journals Water Flow and Biofilm Cover Influence Environmental DNA Detection in Recirculating Streams

2018 ◽  
Vol 52 (15) ◽  
pp. 8530-8537 ◽  
Author(s):  
Arial J. Shogren ◽  
Jennifer L. Tank ◽  
Scott P. Egan ◽  
Olivia August ◽  
Emma J. Rosi ◽  
...  
Keyword(s):  
Water Flow ◽  
Dna Detection ◽  
Environmental Dna
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