2008
DOI: 10.1016/j.biocon.2008.09.002
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Sampling design and its effect on population monitoring: How much monitoring do turtles really need?

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Cited by 44 publications
(39 citation statements)
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References 31 publications
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“…Asimismo, existe un compromiso natural entre el esfuerzo de muestreo y la minimización del error (Jackson et al 2008). Como siempre existirán, en mayor o menor grado, vacíos temporales o espaciales en la información existente y estos vacíos variarán año con año, por esto, es indispensable usar algún sistema para estimar ésos datos faltantes.…”
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“…Asimismo, existe un compromiso natural entre el esfuerzo de muestreo y la minimización del error (Jackson et al 2008). Como siempre existirán, en mayor o menor grado, vacíos temporales o espaciales en la información existente y estos vacíos variarán año con año, por esto, es indispensable usar algún sistema para estimar ésos datos faltantes.…”
unclassified
“…Como siempre existirán, en mayor o menor grado, vacíos temporales o espaciales en la información existente y estos vacíos variarán año con año, por esto, es indispensable usar algún sistema para estimar ésos datos faltantes. Estos métodos destinados a ajustar las observaciones faltantes suelen usar la línea base para estimar, con base en una regresión, la cantidad de hembras que deberían observarse en el periodo no muestreado, u otros arreglos similares (Jackson et al 2008).…”
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“…Indeed, the duration of each time series affects the precision of the estimated trend and so surveys have to be prolonged to get most accurate and reliable assessments. Although it is possible to derive total seasonal nesting effort from parsimonious counts at ground monitoring locations [26,27,36] or even from aerial survey [41], it is important to recall that field patrols by local teams are also a way to finance local communities. Using few aerial surveys during a nesting season and mathematical modeling, it is possible to get a precise estimate of the nesting activity.…”
Section: Discussionmentioning
confidence: 99%
“…Until recently, the objective of many marine turtle conservation programs was to estimate populations using exhaustive observation and tagging of individuals (Richardson et al 2006). However, changes have occurred in the practices used, and several authors have proposed various strategies to reduce the amount of work needed in the field, but without relinquishing any of the power to answer biological questions and spot trends (Kerr et al 1999, Jackson et al 2008, Sims et al 2008. The model proposed here is an alternative to published methods, offering several advantages over them.…”
Section: Discussionmentioning
confidence: 99%
“…To address this issue, various sampling strategies have been promoted in recent years. One category of strategies is characterized by short periods of intensive counts (from 10 to 14 consecutive days) (Kerr et al 1999, Jackson et al 2008, Sims et al 2008). While such a strategy is particularly powerful if only a very few sites must be followed, it quickly becomes infeasible when dozens of sites must be sampled simultaneously.…”
Section: Introductionmentioning
confidence: 99%