We integrated veterinary and demographic data to assess population impacts of Pb on bald eagles in New York state.
Life history of bald eagles
We assessed the population-scale impact of lead toxicosis in New York (NY) eagles from 1990 to 2018 using methods involving a symbolic life cycle in conjunction with demographic and veterinary data (Hanley et al. 2019).
What are the current population dynamics of eagles in NY?
Please see the preliminary results at https://doi.org/10.7298/67x6-ef86.
If NY had been closed to dispersal, how would Pb have effected their recovery in NY?
Please see the preliminary results at https://doi.org/10.7298/bcmg-7w08.
Can I conduct my own sensitivity analysis? Sure!
Please see the published results at https://doi.org/10.7298/bcmg-7w08
What are the impacts at hypothetically higher or lower densities?
Please see the preliminary results at https://doi.org/10.7298/z3ym-1357.
How has Pb influenced this plasticity in NY eagles?
Please see the preliminary results at https://doi.org/10.7298/ptfv-y690.
Using cutting edge techniques, we can assess the population-scale impacts of Pb on bald eagles in the New York using data limited to necropsy and adult time series records.
Further details of this research
Questions can be directed to Dr. Krysten Schuler.
Financial support was provided in part the New York State Department of Environmental Conservation, and in part by the Morris Animal Foundation under grant # D18ZO-103. The contents of this web site, the links, the interactive apps, cited literature, and the narratives have not been reviewed nor endorsed by the Department nor the Foundation, and the views expressed in this content do not necessarily reflect the views of the Department nor Foundation, its officers, directors, affiliates or agents.
Extending this analysis to your state or province
These methods are not limited to the analysis of NY data. Given 17 (or more) years of annual adult time series data of breeding eagles and necropsy records, we can use these methods to calculate the population-scale impacts of Pb that are specific to your state or province.
Please contact the Cornell Wildlife Health Lab for details.
Hanley, B, Dhondt, A, Dennis, B, & Schuler, K. 2019. Using time series data to assess recent population dynamics of Bald Eagles in the northeast United States. Ecosphere. https://doi.org/10.1002/ecs2.2963
Hanley B, Connelly P, & Dennis B. 2019. Another look at the eigenvalues of a population matrix model. PeerJ 7:e8018. https://doi.org/10.7717/peerj.8018
Hanley, B, Dhondt, A, Forzán, M, Bunting, E, Pokras, M, Hynes, K, Dominguez-Villegas, E. & Schuler, K. The population scale impacts of lead toxicosis on Bald Eagles (Haliaeetus leucocephalus) in the Northeast United States. In press.
Connelly, P, Hanley, B, Bunting, E, Hynes, K, & Schuler, K. The population scale impacts of lead toxicosis on Bald Eagles (Haliaeetus leucocephalus) in New York, United States. In review.
1Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYEaglePackage Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990- 2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/67x6-ef86.
2 Hanley, B, Connelly, P, & Dennis, B. 2019. IsoPOPd: Interactive software to understand how elements in a population matrix model influence the asymptotic population growth rate [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/bcmg-7w08.
3Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYCounterPOPd Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990-2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/rsse-e634.
4Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYClosedCounterPOPd Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990-2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/ewr7-xj09.
5Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYDensiPOPd Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990- 2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/z3ym-1357.
6Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYClosedDensiPOPd Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990-2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/dm2c-kb03.
7Connelly, P, Hanley, B, Bunting, E, & Schuler, K. 2020. NYPlastiPOPd Web Interactive: Software to investigate the population scale impacts of lead in New York State from 1990-2018. [Software]. Cornell University Library eCommons Repository. https://doi.org/10.7298/ptfv-y690.
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