Integrating Fossil Preservation Biases in the Selection of Calibrations for Molecular Divergence Time Estimation
نویسندگان
چکیده
منابع مشابه
Integrating fossil preservation biases in the selection of calibrations for molecular divergence time estimation.
The selection of fossil data to use as calibration age priors in molecular divergence time estimates inherently links neontological methods with paleontological theory. However, few neontological studies have taken into account the possibility of a taphonomic bias in the fossil record when developing approaches to fossil calibration selection. The Sppil-Rongis effect may bias the first appearan...
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Estimates of species divergence times using DNA sequence data are playing an increasingly important role in studies of evolution, ecology and biogeography. Most work has centred on obtaining appropriate kinds of data and developing optimal estimation procedures, whereas somewhat less attention has focused on the calibration of divergences using fossils. Case studies with multiple fossil calibra...
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Estimating divergence times using molecular sequence data has become a common application of statistical phylogenetics. However, disparities between estimated ages for clades produced in different studies have become equally commonplace. Here, I propose a method for the objective assessment of the likelihood of inferred divergence times to evaluate the placement of fossil constraints using info...
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انتخاب نامساعد یکی از مشکلات اساسی در صنعت بیمه است. که ابتدا در سال 1960، توسط روتشیلد واستیگلیتز مورد بحث ومطالعه قرار گرفت ازآن موقع تاکنون بسیاری از پژوهشگران مدل های مختلفی را برای تجزیه و تحلیل تقاضا برای صنعت بیمه عمر که تماما ناشی از عدم قطعیت در این صنعت میباشد انجام داده اند .وهدف از آن پیدا کردن شرایطی است که تحت آن شرایط انتخاب یا کنار گذاشتن یک بیمه گزار به نفع و یا زیان شرکت بیمه ...
15 صفحه اولFossil calibrations and molecular divergence time estimates in centrarchid fishes (Teleostei: Centrarchidae).
Molecular clock methods allow biologists to estimate divergence times, which in turn play an important role in comparative studies of many evolutionary processes. It is well known that molecular age estimates can be biased by heterogeneity in rates of molecular evolution, but less attention has been paid to the issue of potentially erroneous fossil calibrations. In this study we estimate the ti...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2011
ISSN: 1076-836X,1063-5157
DOI: 10.1093/sysbio/syr019