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  4. Avian Eggshell Thickness for 12 Species in the Western U.S. from 2014 to 2018

Avian Eggshell Thickness for 12 Species in the Western U.S. from 2014 to 2018

Dates

Publication Date
Start Date
2014-04-14
End Date
2018-08-15

Citation

Peterson, S.H., and Ackerman, J.T., 2020, Avian eggshell thickness for 12 species in the western U.S. from 2014 to 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P981OW6T.

Summary

Eggshell thickness was measured at the egg equator and poles (sharp pole and blunt pole) for 12 avian species. Eggshell thickness was related to egg morphometrics (egg length and width), embryonic development, egg status, and mercury contamination. Individual eggshells each have up to 3 thickness measurements, linked by the eggshell identification. Each measurement has the corresponding egg length, egg width, egg status, mercury concentration, and nest identification. Additionally, eggshell thickness was measured at 5 equally spaced positions along the longitude of the egg (sharp pole, quarter egg, half egg, three quarter egg, and blunt pole) in a subset of Forster's tern (Sterna forsteri) eggs. These data support the following publication: [...]

Contacts

Point of Contact :
U.S. Geological Survey, Western Ecological Research Center
Originator :
Sarah H Peterson, Josh T Ackerman
Metadata Contact :
Sarah H Peterson
USGS Mission Area :
Ecosystems
SDC Data Owner :
Western Ecological Research Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Avian eggshell thickness for 12 species in the western U.S. from 2014 to 2018.xml
Original FGDC Metadata
View 		38.7 KB application/fgdc+xml
ForstersTernEggLocations.csv 7.98 KB text/csv
SpeciesAndEggLocations.csv 800.3 KB text/csv

Purpose

Eggshell thicknesses were measured to provide more precise and repeatable estimates for 12 species, using a hall effect thickness gauge instead of an analog or digital micrometer. We used these data to relate eggshell thickness to egg morphometrics (egg length and width), embryonic development, egg status, and mercury contamination.

Rights

The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P981OW6T

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