Evaluating Snake Density Using Passive Integrated Transponder (PIT) Telemetry and Spatial Capture–Recapture Analyses for Linear Habitats

2019 ◽  
Vol 53 (4) ◽  
pp. 272
Author(s):  
Wendy Leuenberger ◽  
Allison G. Davis ◽  
Jennifer M. Mckenzie ◽  
Andrea N. Drayer ◽  
Steven J. Price
Keyword(s):  
Passive Integrated Transponder ◽  
Linear Habitats ◽  
Capture Recapture ◽  
Pit Telemetry

Movement patterns of the invasive signal crayfish determined by PIT telemetry

2006 ◽  
Vol 84 (8) ◽  
pp. 1202-1209 ◽  
Author(s):  
Damian H. Bubb ◽  
Timothy J. Thom ◽  
Martyn C. Lucas
Keyword(s):  
Space Use ◽  
Field Studies ◽  
Remote Detection ◽  
Signal Crayfish ◽  
Passive Integrated Transponder ◽  
Median Distance ◽  
Release Location ◽  
Density Population ◽  
Portable Detector ◽  
Pit Telemetry

In one of the first field studies to utilize passive integrated transponder (PIT) telemetry to study space use of invertebrates, movement of the introduced signal crayfish ( Pacifastacus leniusculus (Dana, 1852)) was examined intensively in a high-density population in an upland river in northern England from 18 August to 6 September 2004. Crayfish (carapace length 21.0–67.3 mm) were tracked with externally attached PIT tags, enabling remote detection of tagged crayfish by the use of a portable detector. Of the 406 crayfish tagged, 356 (87.7%) were subsequently relocated at least once. The majority of crayfish remained close to the release location (median distance between release and final locations 36.3 m; 25th percentile 10.4 m, 75th percentile 91.6 m). However, movements of up to 345 m were recorded. There was no relationship between sex or size and distance moved. A small waterfall, upstream of the release location, appeared to form a barrier preventing movements of tagged crayfish upstream past it during the study period. PIT telemetry can provide an effective method for detailed recording of space use compared with standard mark–recapture or radiotelemetry methods.

Portable PIT detector as a new tool for non-disruptively locating individually tagged amphibians in the field: a case study with Pyrenean brook salamanders (Calotriton asper)

2008 ◽  
Vol 35 (8) ◽  
pp. 780 ◽  
Author(s):  
J. Cucherousset ◽  
P. Marty ◽  
L. Pelozuelo ◽  
J.-M. Roussel
Keyword(s):  
Shallow Waters ◽  
Passive Integrated Transponder ◽  
Capture Method ◽  
The Mean ◽  
Portable Detector ◽  
Pit Telemetry

Passive Integrated Transponder (PIT) telemetry has recently been adapted for locating PIT-tagged fish in shallow waters using portable detectors. In the present study, we tested this method for adult amphibians (Pyrenean brook salamanders, Calotriton asper) PIT-tagged with 12-mm transponders in a headwater rocky stream. PIT telemetry performances were compared with a conventional hand-capture method, i.e. visual searching and overturning movable stones in the streambed. The mean efficiency of the portable detector (88.2% ± 5.2, s.e.) was significantly higher than hand-capture (51.1% ± 6.4) and the operator progressed, on average, four times faster. Time efficiencies were, on average, 0.92 (±0.15) and 0.12 (±0.04) adult salamanders per minute with the portable detector and by hand-capture, respectively. The efficiency of the portable detector was negatively correlated with the percentage of large stones on the streambed. The time needed to prospect a section was positively correlated with the abundance of PIT-tagged adult salamanders, spring inlets and undercut banks. Because PIT telemetry is less disruptive than hand-capture for both salamanders and their habitat, it is a promising and non-disruptive method for developing studies on the ecology and management of amphibians in shallow waters.

scholarly journals Long-toed Salamander (Ambystoma macrodactylum) hibernacula in Waterton Lakes National Park revealed using Passive Integrated Transponder telemetry

2019 ◽  
Vol 132 (2) ◽  
pp. 168-175 ◽  
Author(s):  
Matthew R. Atkinson-Adams ◽  
Christopher J. Price ◽  
Garry J. Scrimgeour ◽  
Cynthia A. Paszkowski
Keyword(s):  
National Park ◽  
Root Systems ◽  
Ambystoma Macrodactylum ◽  
Passive Integrated Transponder ◽  
Waterton Lakes National Park ◽  
Pit Telemetry

Long-toed Salamanders (Ambystoma macrodactylum) spend most of their lives on land; however, their fossorial nature makes studying their use of habitat difficult. Using Passive Integrated Transponder (PIT) telemetry over two years, we found and characterized nine overwintering sites of Long-toed Salamanders in the vicinity of Linnet Lake and Stable Pond in Waterton Lakes National Park, excavating five of them. These sites were typically associated with stumps and decaying root systems that gave the salamanders access to deep subterranean hibernacula. Overwintering sites were located up to 168 m from the shores of breeding ponds. Given the importance of such terrestrial sites to these populations of Long-toed Salamanders, it is vital that conservation efforts include the preservation of these features and ensure that a sufficient area surrounding breeding ponds remains undisturbed.

Capture recapture électroniques en phosphorescence

1952 ◽  
Vol 12 (7) ◽  
pp. 749-801 ◽  
Author(s):  
Daniel Curie
Keyword(s):  
Capture Recapture

An Urn Model for the Multi-Sample Capture/Recapture Sequential Tagging Process.

1987 ◽  
Author(s):  
Jose G. Leite ◽  
Carlos A. De Braganca Pereira
Keyword(s):  
Urn Model ◽  
Capture Recapture

Perinatal Arterial Ischemic Stroke in Preterm and Term Born Infants: A National Capture- Recapture Calculation Corrected Surveillance Study

2020 ◽  
Author(s):  
Anna-Lisa Sorg ◽  
Rüdiger von Kries ◽  
Mathias Klemme ◽  
Lucia Gerstl ◽  
Ursula Felderhoff-Müser ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Surveillance Study ◽  
Arterial Ischemic Stroke ◽  
Capture Recapture ◽  
Perinatal Arterial Ischemic Stroke

Estimating the population size of people who inject drugs in Ho Chi Minh City, Vietnam: A two-survey capture-recapture exercise (Preprint)

2019 ◽  
Author(s):  
Abu Abdul-Quader
Keyword(s):  
Population Size ◽  
Illicit Drugs ◽  
People Who Inject Drugs ◽  
Care Service ◽  
Ho Chi Minh City ◽  
Size Estimation ◽  
Population Size Estimates ◽  
Capture Recapture ◽  
The City ◽  
Size Estimates

BACKGROUND Population size estimation of people who inject drugs (PWID) in Ho Chi Minh City (HCMC), Vietnam relied on the UNAIDS Estimation and Projection Package and reports from the city police department. The two estimates vary widely. OBJECTIVE To estimate the population size of people who inject drugs in Ho Chi Minh City, Vietnam METHODS Using Respondent-driven sampling (RDS), we implemented two-source capture-recapture method to estimate the population size of PWID in HCMC in 2017 in 7 out of 24 districts. The study included men or women aged at least 18 years who reported injecting illicit drugs in the last 90 days and who had lived in the city the past six months. We calculated two sets of size estimates, the first assumed that all participants in each survey round resided in the district where the survey was conducted, the second, used the district of residence as reported by the participant. District estimates were summed to obtain an aggregate estimate for the seven districts. To calculate the city total, we weighted the population size estimates for each district by the inverse of the stratum specific sampling probabilities. RESULTS The first estimate resulted in a population size of 19,155 (95% CI: 17,006–25,039). The second one generated a smaller population size estimate of 12,867 (95% CI: 11,312–17,393). CONCLUSIONS The two-survey capture-recapture exercise provided two disparate estimates of PWID in HCMC. For planning HIV prevention and care service needs among PWID in HCMC, both estimates may need to be taken into consideration together with size estimates from other sources.

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