John G. Ewen

Zoological Society of London — United Kingdom

Environmental Science · Physical Sciences

44h-index5.8kcitations226works2.62yr avg
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Research Topics

Avian ecology and behavior(83), Wildlife Ecology and Conservation(83), Animal Behavior and Reproduction(60), Species Distribution and Climate Change(48), Plant and animal studies(32)

Publications226 total

Challenges of introgression in conservation: non-invasive sampling and surveillance of genetic diversity of in-situ and ex-situ populations of the Critically Endangered Wild Camel in Mongolia.
2025Open Access
Parental Age, Inbreeding and Incubation Method Influence Extremely Low Hatching Success in the Ex‐Situ Population of the Extinct in the Wild Sihek
Animal Conservation·2025Open Access
Self‐sustaining populations are a conservation vision, not an operational objective
Conservation Science and Practice·2025· 2 citedOpen Access
Simulating Demography, Monitoring, and Management Decisions to Evaluate Adaptive Management Strategies for Endangered Species
Conservation Letters·2025Open Access
Author response for "Supplementing human observation with artificial intelligence impacts demographic estimates for a critically endangered lizard"
2025
Supplementing human observation with artificial intelligence impacts demographic estimates for a critically endangered lizard
Ecological Solutions and Evidence·2025· 1 citedOpen Access
Both Structural Variant and Single Nucleotide Polymorphism Load Impact Lifetime Fitness in a Threatened Bird Species
Molecular Ecology·2024· 4 citedOpen Access
Demographic drivers of reproductive failure in a threatened bird: Insights from a decade of data
Proceedings of the National Academy of Sciences·2024· 5 citedOpen Access
A high-density linkage map reveals broad- and fine-scale sex differences in recombination in the hihi (stitchbird; Notiomystis cincta)
Heredity·2024· 7 citedOpen Access
Assessing invasion risks using EICAT-based expert elicitation: application to a conservation translocation
Biological Invasions·2024· 3 citedOpen Access
Genetic rescue attempt in a small, inbred population of a wild endangered passerine
Biological Conservation·2024· 7 cited
Conservation translocations of fauna in Aotearoa New Zealand: a review
New Zealand Journal of Ecology·2023· 3 citedOpen Access
Decisive conservation action in areas beyond national jurisdiction is urgently required for seabird recovery in the face of global change
Conservation Letters·2023· 5 citedOpen Access
Avoiding bias in estimates of population size for translocation management
Ecological Applications·2023· 4 citedOpen Access
Balancing conservation and welfare in ex situ management of the extinct‐in‐the‐wild sihek: sex‐ and age‐specific causes of mortality and contributions to population growth rate
Animal Conservation·2023· 3 cited
Assembly of female and male hihi genomes (stitchbird; <i>Notiomystis cincta</i>) enables characterization of the W chromosome and resources for conservation genomics
Molecular Ecology Resources·2023· 8 citedOpen Access
Decision analysis for seabird recovery: Navigating complexity across ecosystems, balancing competing values and bridging spaces between research and implementation
Journal of Applied Ecology·2023· 8 citedOpen Access
Early‐life telomere length predicts life‐history strategy and reproductive senescence in a threatened wild songbird
Molecular Ecology·2023· 7 citedOpen Access
Environmental, geographical and time‐related impacts on avian malaria infections in native and introduced populations of house sparrows (<i>Passer domesticus</i>), a globally invasive species
Global Ecology and Biogeography·2023· 10 citedOpen Access
Extinct in the wild: The precarious state of Earth’s most threatened group of species
Science·2023· 56 citedOpen Access
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Frequent Co-authors

Doug P. Armstrong(15), Phillip Cassey(10), Tim M. Blackburn(8), Patricia Brekke(6), Stefano Canessa(5), Rose Thorogood(5), Anna W. Santure(4), Rohan H. Clarke(4), Nathalie Pettorelli(4), Márk E. Hauber(4), Filiz Karadaş(4), Gediminas Valkiūnas(3), Javier Pérez‐Tris(3), Staffan Bensch(3), Philip J. Seddon(3), A. P. Møller(3), Axel Moehrenschlager(3), Alfonso Marzal(2), Robert E. Ricklefs(2), Tamer Albayrak(2)