An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Pimm S, Raven P, Peterson A, Sekercioglu CH, Ehrlich PR.Pimm S, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2006 Jul 18;103(29):10941-6. doi: 10.1073/pnas.0604181103. Epub 2006 Jul 7.Proc Natl Acad Sci U S A. 2006.PMID: 16829570Free PMC article.
Sekercioglu CH, Ehrlich PR, Daily GC, Aygen D, Goehring D, Sandi RF.Sekercioglu CH, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2002 Jan 8;99(1):263-7. doi: 10.1073/pnas.012616199.Proc Natl Acad Sci U S A. 2002.PMID: 11782549Free PMC article.
McLaughlin JF, Hellmann JJ, Boggs CL, Ehrlich PR.McLaughlin JF, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2002 Apr 30;99(9):6070-4. doi: 10.1073/pnas.052131199. Epub 2002 Apr 23.Proc Natl Acad Sci U S A. 2002.PMID: 11972020Free PMC article.
Sekercioğlu CH, Daily GC, Ehrlich PR.Sekercioğlu CH, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2004 Dec 28;101(52):18042-7. doi: 10.1073/pnas.0408049101. Epub 2004 Dec 15.Proc Natl Acad Sci U S A. 2004.PMID: 15601765Free PMC article.
Ranganathan J, Daniels RJ, Chandran MD, Ehrlich PR, Daily GC.Ranganathan J, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2008 Nov 18;105(46):17852-4. doi: 10.1073/pnas.0808874105. Epub 2008 Nov 3.Proc Natl Acad Sci U S A. 2008.PMID: 18981411Free PMC article.
Ceballos G, Ehrlich PR.Ceballos G, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2009 Mar 10;106(10):3841-6. doi: 10.1073/pnas.0812419106. Epub 2009 Feb 19.Proc Natl Acad Sci U S A. 2009.PMID: 19228946Free PMC article.
Karp DS, Ziv G, Zook J, Ehrlich PR, Daily GC.Karp DS, et al. Among authors: ehrlich pr.Proc Natl Acad Sci U S A. 2011 Dec 27;108(52):21134-9. doi: 10.1073/pnas.1118276108. Epub 2011 Dec 12.Proc Natl Acad Sci U S A. 2011.PMID: 22160726Free PMC article.