Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal
Shark teeth are the most abundant vertebrate fossil, and because tooth size generally correlates with body size, their accumulations document the size structure of populations. Understanding how ecological and environmental processes influence size structure, and how this extends to influence these...
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ftzenodo:oai:zenodo.org:6301367 2024-09-15T17:48:13+00:00 Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal Kim, Sora Yeakel, Justin Kriwet, Juergen Balk, Meghan Eberle, Jaelyn Zeichner, Sarah Fieman, Dina 2022-02-24 https://doi.org/10.6071/M3RT05 unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.6071/M3RT05 oai:zenodo.org:6301367 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode sand tiger metapopulation Eocene Gulf of Mexico Arctic Antarctic latitudinal gradient info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.6071/M3RT05 2024-07-25T18:32:47Z Shark teeth are the most abundant vertebrate fossil, and because tooth size generally correlates with body size, their accumulations document the size structure of populations. Understanding how ecological and environmental processes influence size structure, and how this extends to influence these dental distributions, may offer a window into the ecological and environmental dynamics of past and present shark populations. Here we examine the dental distributions of sand tigers, including extant Carcharias taurus and extinct Striatolamia macrota , to reconstruct the size structure for a contemporary locality and four Eocene localities. We compare empirical distributions against expectations from a population simulation to gain insight into potential governing ecological processes. Specifically, we investigate the influence of dispersal flexibility to and from protected nurseries. We show that changing the flexibility of initial dispersal of juveniles from the nursery and annual migration of adults to the nursery explains a large amount of dental distribution variability. Our framework predicts dispersal strategies of an extant sand tiger population, and supports nurseries as important components of sand tiger life history in both extant and Eocene populations. These results suggest nursery protection may be vital for shark conservation with increasing anthropogenic impacts and climate change. The anterior tooth length data from Eocene fossil sharks are labeled as the following columns: "Red_Hot" is the Red Hot Truck Stop locality of the Bashi/Tuscahoma Formations (Fm); Whiskey_Bridge is the Whiskey Bridge locality in the Stone City Member of the Crockett Fm.; Banks is Banks Island in the Cyclic Member of the Eureka Sound Fm. in the Arctic; Seymour is Seymour Island in the La Meseta Fm. of Antartica. The modern data from Delaware Bay takes total length data from the 2012 Delaware State and University of Delaware shark tagging program and transforms it to labial measurements of anterior tooth crown height (shown ... Other/Unknown Material Antarc* Antarctic antartic* Banks Island Climate change Eureka Sound Seymour Island Zenodo |
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sand tiger metapopulation Eocene Gulf of Mexico Arctic Antarctic latitudinal gradient |
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sand tiger metapopulation Eocene Gulf of Mexico Arctic Antarctic latitudinal gradient Kim, Sora Yeakel, Justin Kriwet, Juergen Balk, Meghan Eberle, Jaelyn Zeichner, Sarah Fieman, Dina Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
topic_facet |
sand tiger metapopulation Eocene Gulf of Mexico Arctic Antarctic latitudinal gradient |
description |
Shark teeth are the most abundant vertebrate fossil, and because tooth size generally correlates with body size, their accumulations document the size structure of populations. Understanding how ecological and environmental processes influence size structure, and how this extends to influence these dental distributions, may offer a window into the ecological and environmental dynamics of past and present shark populations. Here we examine the dental distributions of sand tigers, including extant Carcharias taurus and extinct Striatolamia macrota , to reconstruct the size structure for a contemporary locality and four Eocene localities. We compare empirical distributions against expectations from a population simulation to gain insight into potential governing ecological processes. Specifically, we investigate the influence of dispersal flexibility to and from protected nurseries. We show that changing the flexibility of initial dispersal of juveniles from the nursery and annual migration of adults to the nursery explains a large amount of dental distribution variability. Our framework predicts dispersal strategies of an extant sand tiger population, and supports nurseries as important components of sand tiger life history in both extant and Eocene populations. These results suggest nursery protection may be vital for shark conservation with increasing anthropogenic impacts and climate change. The anterior tooth length data from Eocene fossil sharks are labeled as the following columns: "Red_Hot" is the Red Hot Truck Stop locality of the Bashi/Tuscahoma Formations (Fm); Whiskey_Bridge is the Whiskey Bridge locality in the Stone City Member of the Crockett Fm.; Banks is Banks Island in the Cyclic Member of the Eureka Sound Fm. in the Arctic; Seymour is Seymour Island in the La Meseta Fm. of Antartica. The modern data from Delaware Bay takes total length data from the 2012 Delaware State and University of Delaware shark tagging program and transforms it to labial measurements of anterior tooth crown height (shown ... |
format |
Other/Unknown Material |
author |
Kim, Sora Yeakel, Justin Kriwet, Juergen Balk, Meghan Eberle, Jaelyn Zeichner, Sarah Fieman, Dina |
author_facet |
Kim, Sora Yeakel, Justin Kriwet, Juergen Balk, Meghan Eberle, Jaelyn Zeichner, Sarah Fieman, Dina |
author_sort |
Kim, Sora |
title |
Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
title_short |
Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
title_full |
Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
title_fullStr |
Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
title_full_unstemmed |
Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal |
title_sort |
data from: decoding the dynamics of dental distributions: insights from shark demography and dispersal |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.6071/M3RT05 |
genre |
Antarc* Antarctic antartic* Banks Island Climate change Eureka Sound Seymour Island |
genre_facet |
Antarc* Antarctic antartic* Banks Island Climate change Eureka Sound Seymour Island |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.6071/M3RT05 oai:zenodo.org:6301367 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.6071/M3RT05 |
_version_ |
1810289375702941696 |