Corey Callaghan

Postdoctoral Fellow

My research generally relates to global change ecology, and is aimed at better understanding how anthropogenic activities influence biodiversity responses spatially and temporally. Most of the work I do falls into one of three general spheres: (1) urban ecology; (2) citizen science; and (3) ornithology. However, often my work involves more than one of these three spheres. Examples of recent research project including estimating the economic potential of vagrant birdwatching, continental-scale responses of bird diversity to urbanization, and mechanisms with which to improve future biodiversity sampling by citizen scientists. While I generally use birds as a taxon, I am increasingly interested in other taxa responses to urbanization (e.g., frogs).

publications

Journal articles
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Callaghan CT; Poore AGB; Mesaglio T; Moles AT; Nakagawa S; Roberts C; Rowley JJL; Vergés A; Wilshire JH; Cornwell WK, 2021, 'Three Frontiers for the Future of Biodiversity Research Using Citizen Science Data', BioScience, vol. 71, pp. 55 - 63, http://dx.doi.org/10.1093/biosci/biaa131
2021
Callaghan CT; Bowler DE; Pereira HM, 2021, 'Thermal flexibility and a generalist life history promote urban affinity in butterflies', Global Change Biology, vol. 27, pp. 3532 - 3546, http://dx.doi.org/10.1111/gcb.15670
2021
Ferretto G; Glasby TM; Poore AGB; Callaghan CT; Housefield GP; Langley M; Sinclair EA; Statton J; Kendrick GA; Vergés A, 2021, 'Naturally-detached fragments of the endangered seagrass Posidonia australis collected by citizen scientists can be used to successfully restore fragmented meadows', Biological Conservation, vol. 262, http://dx.doi.org/10.1016/j.biocon.2021.109308
2021
Callaghan CT; Cornwell WK; Poore AGB; Benedetti Y; Morelli F, 2021, 'Urban tolerance of birds changes throughout the full annual cycle', Journal of Biogeography, vol. 48, pp. 1503 - 1517, http://dx.doi.org/10.1111/jbi.14093
2021
Lee JS; Callaghan CT; Cornwell WK, 2021, 'Using citizen science to measure recolonisation of birds after the Australian 2019–2020 mega-fires', Austral Ecology, http://dx.doi.org/10.1111/aec.13105
2021
Mesaglio T; Callaghan CT, 2021, 'An overview of the history, current contributions and future outlook of iNaturalist in Australia', Wildlife Research, vol. 48, pp. 289 - 303, http://dx.doi.org/10.1071/WR20154
2021
Callaghan CT; Sayol F; Benedetti Y; Morelli F; Sol D, 2021, 'Validation of a globally-applicable method to measure urban tolerance of birds using citizen science data', Ecological Indicators, vol. 120, pp. 106905 - 106905, http://dx.doi.org/10.1016/j.ecolind.2020.106905
2021
Laitly A; Callaghan CT; Delhey K; Cornwell WK, 2021, 'Is color data from citizen science photographs reliable for biodiversity research?', Ecology and Evolution, vol. 11, pp. 4071 - 4083, http://dx.doi.org/10.1002/ece3.7307
2021
Gorta SBZ; Pedler RD; Kingsford RT; Callaghan CT, 2021, 'Avifaunal use of an artificial waterpoint in the Strzelecki Desert during an extended dry period', Emu, http://dx.doi.org/10.1080/01584197.2021.1966311
2021
Liu G; Rowley JJL; Kingsford RT; Callaghan CT, 2021, 'Species' traits drive amphibian tolerance to anthropogenic habitat modification', Global Change Biology, vol. 27, pp. 3120 - 3132, http://dx.doi.org/10.1111/gcb.15623
2021
Benedetti Y; Morelli F; Callaghan CT; Fuller R, 2021, 'Distribution and protection of avian specialization in Europe', Global Ecology and Biogeography, http://dx.doi.org/10.1111/geb.13405
2021
Callaghan CT; Nakagawa S; Cornwell WK, 2021, 'Global abundance estimates for 9,700 bird species', Proceedings of the National Academy of Sciences of the United States of America, vol. 118, pp. e2023170118 - e2023170118, http://dx.doi.org/10.1073/pnas.2023170118
2021
Callaghan CT; Poore AGB; Hofmann M; Roberts CJ; Pereira HM, 2021, 'Large-bodied birds are over-represented in unstructured citizen science data', Scientific Reports, vol. 11, http://dx.doi.org/10.1038/s41598-021-98584-7
2021
Kirchhoff C; Callaghan CT; Keith DA; Indiarto D; Taseski G; Ooi MKJ; Le Breton TD; Mesaglio T; Kingsford RT; Cornwell WK, 2021, 'Rapidly mapping fire effects on biodiversity at a large-scale using citizen science', Science of the Total Environment, vol. 755, http://dx.doi.org/10.1016/j.scitotenv.2020.142348
2021
Callaghan CT; Rowley JJL, 2021, 'A continental assessment of diurnality in frog calling behaviour', Austral Ecology, vol. 46, pp. 65 - 71, http://dx.doi.org/10.1111/aec.12959
2021
Callaghan CT; Liu G; Mitchell BA; Poore AGB; Rowley JJL, 2021, 'Urbanization negatively impacts frog diversity at continental, regional, and local scales', Basic and Applied Ecology, vol. 54, pp. 64 - 74, http://dx.doi.org/10.1016/j.baae.2021.04.003
2021
Callaghan CT; Poore AGB; Major RE; Cornwell WK; Wilshire JH; Lyons MB, 2021, 'How to build a biodiverse city: environmental determinants of bird diversity within and among 1581 cities', Biodiversity and Conservation, vol. 30, pp. 217 - 234, http://dx.doi.org/10.1007/s10531-020-02088-1
2021
Callaghan CT; Watson JEM; Lyons MB; Cornwell WK; Fuller RA, 2021, 'Conservation birding: A quantitative conceptual framework for prioritizing citizen science observations', Biological Conservation, vol. 253, http://dx.doi.org/10.1016/j.biocon.2020.108912
2021
Callaghan CT; Benedetti Y; Wilshire JH; Morelli F, 2020, 'Avian trait specialization is negatively associated with urban tolerance', Oikos, vol. 129, pp. 1541 - 1551, http://dx.doi.org/10.1111/oik.07356
2020
Francis RJ; Brandis KJ; Kingsford RT; Callaghan CT, 2020, 'Quantifying bird diversity at three sites of differing herbivore presence', Journal of Ornithology, vol. 161, pp. 1117 - 1127, http://dx.doi.org/10.1007/s10336-020-01804-6
2020
Morelli F; Benedetti Y; Callaghan CT, 2020, 'Ecological specialization and population trends in European breeding birds', GLOBAL ECOLOGY AND CONSERVATION, vol. 22, http://dx.doi.org/10.1016/j.gecco.2020.e00996
2020
Callaghan CT; Wilshire JH; Martin JM; Major RE; Lyons MB; Kingsford RT, 2020, 'The greenspace bird calculator: A citizen-driven tool for monitoring avian biodiversity in urban greenspaces', Australian Zoologist, vol. 40, pp. 468 - 476, http://dx.doi.org/10.7882/AZ.2019.009
2020
Callaghan CT; Benson I; Major RE; Martin JM; Longden T; Kingsford RT, 2020, 'Birds are valuable: the case of vagrants', Journal of Ecotourism, vol. 19, pp. 82 - 92, http://dx.doi.org/10.1080/14724049.2019.1614010
2020
Rowley JJL; Callaghan CT; Cornwell WK, 2020, 'Widespread short-term persistence of frog species after the 2019-2020 bushfires in eastern Australia revealed by citizen science', CONSERVATION SCIENCE AND PRACTICE, vol. 2, http://dx.doi.org/10.1111/csp2.287
2020
Rowley JJL; Callaghan CT, 2020, 'The frogID dataset: Expert-validated occurrence records of australia’s frogs collected by citizen scientists', ZooKeys, vol. 2020, pp. 139 - 151, http://dx.doi.org/10.3897/zookeys.912.38253
2020
Callaghan CT; Roberts JD; Poore AGB; Alford RA; Cogger H; Rowley JJL, 2020, 'Citizen science data accurately predicts expert-derived species richness at a continental scale when sampling thresholds are met', Biodiversity and Conservation, vol. 29, pp. 1323 - 1337, http://dx.doi.org/10.1007/s10531-020-01937-3
2020
Weaver SJ; Callaghan CT; Rowley JJL, 2020, 'Anuran accents: Continental-scale citizen science data reveal spatial and temporal patterns of call variability', Ecology and Evolution, vol. 10, pp. 12115 - 12128, http://dx.doi.org/10.1002/ece3.6833
2020
Callaghan CT; Major RE; Cornwell WK; Poore AGB; Wilshire JH; Lyons MB, 2020, 'A continental measure of urbanness predicts avian response to local urbanization', Ecography, vol. 43, pp. 528 - 538, http://dx.doi.org/10.1111/ecog.04863
2020
Justyn NM; Callaghan CT; Hill GE, 2020, 'Birds rarely hybridize: A citizen science approach to estimating rates of hybridization in the wild*', Evolution, vol. 74, pp. 1216 - 1223, http://dx.doi.org/10.1111/evo.13943
2020
Mitchell BA; Callaghan CT; Rowley JJL, 2020, 'Continental-scale citizen science data reveal no changes in acoustic responses of a widespread tree frog to an urbanisation gradient', Journal of Urban Ecology, vol. 6, http://dx.doi.org/10.1093/jue/juaa002
2020
Callaghan CT; Ozeroff I; Hitchcock C; Chandler M, 2020, 'Capitalizing on opportunistic citizen science data to monitor urban biodiversity: A multi-taxa framework', BIOLOGICAL CONSERVATION, vol. 251, http://dx.doi.org/10.1016/j.biocon.2020.108753
2020
Gorta SBZ; Smith JA; Everett JD; Kingsford RT; Cornwell WK; Suthers IM; Epstein H; McGovern R; McLachlan G; Roderick M; Smith L; Williams D; Callaghan CT, 2019, 'Pelagic citizen science data reveal declines of seabirds off south-eastern Australia', Biological Conservation, vol. 235, pp. 226 - 235, http://dx.doi.org/10.1016/j.biocon.2019.05.007
2019
Callaghan CT; Rowley JJL; Cornwell WK; Poore AGB; Major RE, 2019, 'Improving big citizen science data: Moving beyond haphazard sampling', PLoS Biology, vol. 17, pp. e3000357, http://dx.doi.org/10.1371/journal.pbio.3000357
2019
Callaghan CT; Kekeubata E; Waneagea J; Alabai M; Esau T; MacLaren D; Major RE, 2019, 'A collaborative bird survey of East Kwaio, Malaita, Solomon Islands', Check List, vol. 15, pp. 1119 - 1136, http://dx.doi.org/10.15560/15.6.1119
2019
Alabai M; Esau T; Kekeubata E; Waneagea J; MacLaren D; Major RE; Callaghan CT, 2019, 'First record of Solomons Nightjar Eurostopodus nigripennis for Malaita, with a description of its nest site', Bulletin of the British Ornithologists’ Club, vol. 139, pp. 325 - 325, http://dx.doi.org/10.25226/bboc.v139i4.2019.a4
2019
Callaghan CT; Poore AGB; Major RE; Rowley JJL; Cornwell WK, 2019, 'Optimizing future biodiversity sampling by citizen scientists', Proceedings of the Royal Society B: Biological Sciences, vol. 286, pp. 20191487, http://dx.doi.org/10.1098/rspb.2019.1487
2019
Callaghan CT; Bino G; Major RE; Martin JM; Lyons MB; Kingsford RT, 2019, 'Heterogeneous urban green areas are bird diversity hotspots: insights using continental-scale citizen science data', Landscape Ecology, vol. 34, pp. 1231 - 1246, http://dx.doi.org/10.1007/s10980-019-00851-6
2019
Callaghan CT; Major RE; Lyons MB; Martin JM; Wilshire JH; Kingsford RT; Cornwell WK, 2019, 'Using citizen science data to define and track restoration targets in urban areas', Journal of Applied Ecology, vol. 56, pp. 1998 - 2006, http://dx.doi.org/10.1111/1365-2664.13421
2019
Rowley JJL; Callaghan CT; Cutajar T; Portway C; Potter K; Mahony S; Trembath DF; Flemons P; Woods A, 2019, 'FrogID: Citizen scientists provide validated biodiversity data on frogs of Australia', Herpetological Conservation and Biology, vol. 14, pp. 155 - 170, http://www.herpconbio.org/Volume_14/Issue_1/Rowley_etal_2019.pdf
2019
Callaghan CT; Major RE; Wilshire JH; Martin JM; Kingsford RT; Cornwell WK, 2019, 'Generalists are the most urban-tolerant of birds: a phylogenetically controlled analysis of ecological and life history traits using a novel continuous measure of bird responses to urbanization', Oikos, vol. 128, pp. 845 - 858, http://dx.doi.org/10.1111/oik.06158
2019
Lyons MB; Brandis KJ; Murray NJ; Wilshire JH; McCann JA; Kingsford RT; Callaghan CT, 2019, 'Monitoring large and complex wildlife aggregations with drones', Methods in Ecology and Evolution, vol. 10, pp. 1024 - 1035, http://dx.doi.org/10.1111/2041-210X.13194
2019
Callaghan CT; Martin JM; Major RE; Kingsford RT, 2018, 'Avian monitoring - comparing structured and unstructured citizen science', Wildlife Research, vol. 45, pp. 176 - 184, http://dx.doi.org/10.1071/WR17141
2018
Callaghan CT; Slater M; Major RE; Morrison M; Martin JM; Kingsford RT, 2018, 'Travelling birds generate eco-travellers: The economic potential of vagrant birdwatching', Human Dimensions of Wildlife, vol. 23, pp. 71 - 82, http://dx.doi.org/10.1080/10871209.2017.1392654
2018
Callaghan CT; Martin JM; Kingsford RT; Brooks DM, 2018, 'Unnatural history: is a paradigm shift of natural history in 21st century ornithology needed?', Ibis, vol. 160, pp. 475 - 480, http://dx.doi.org/10.1111/ibi.12555
2018
Callaghan CT; Major RE; Lyons MB; Martin JM; Kingsford RT, 2018, 'The effects of local and landscape habitat attributes on bird diversity in urban greenspaces', Ecosphere, vol. 9, http://dx.doi.org/10.1002/ecs2.2347
2018
Lyons M; Brandis K; Callaghan C; McCann J; Mills C; Ryall S; Kingsford RT, 2018, 'Bird interactions with drones, from individuals to large colonies', Australian Field Ornithology, vol. 35, pp. 51 - 56, http://dx.doi.org/10.20938/afo35051056
2018
Callaghan CT; Brandis KJ; Lyons MB; Ryall S; Kingsford RT, 2018, 'A comment on the limitations of UAVS in wildlife research – the example of colonial nesting waterbirds', Journal of Avian Biology, vol. 49, http://dx.doi.org/10.1111/jav.01825
2018
Callaghan CT, 2017, ''Shadow-boxing' by a Northern Mockingbird (Mimus polyglottos)', Florida Field Naturalist, vol. 45, pp. 21 - 23
2017
Callaghan CT; Ryall S; Kingsford RT, 2017, 'A probable Australian White Ibis Threskiornis moluccus × Straw-necked Ibis T. spinicollis hybrid', Australian Field Ornithology, vol. 34, pp. 47 - 48, http://dx.doi.org/10.20938/afo34047048
2017
Callaghan CT; Lyons MB; Martin JM; Major RE; Kingsford RT, 2017, 'Assessing the reliability of avian biodiversity measures of urban greenspaces using ebird citizen science data', Avian Conservation and Ecology, vol. 12, http://dx.doi.org/10.5751/ACE-01104-120212
2017
Callaghan CT; Brooks DM, 2017, 'History, Current Distribution, and Status of the Egyptian Goose (Alopochen aegyptiaca) In the Contiguous United States', The Southwestern Naturalist, vol. 62, pp. 296 - 300, http://dx.doi.org/10.1894/0038-4909-62.4.296
2017
Callaghan CT, 2016, 'Pacific Golden-Plover (Pluvialis fulva) in Florida: A First State Record', Florida Field Naturalist, vol. 44, pp. 169 - 174
2016
Callaghan CT; Brooks DM, 2016, 'Ecology, behavior, and reproduction of invasive Egyptian Geese (Alopochen aegyptiaca) in Texas', Bulletin of the Texas Ornithological Society, vol. 49, pp. 37 - 45
2016
Chastant JE; Callaghan CT; Kings DT, 2016, 'Morphometric Variation during Chick Development in Interior Double-crested Cormorants (Phalacrocorax auritus)', WATERBIRDS, vol. 39, pp. 260 - 267, http://dx.doi.org/10.1675/063.039.0305
2016
Callaghan CT; Gawlik DE, 2016, 'Diet and Selectivity of Porphyrio porphyrio (Purple Swamphen) in Florida', Southeastern Naturalist, vol. 15, pp. 1 - 14, http://dx.doi.org/10.1656/058.015.sp801
2016
Callaghan CT; Gawlik DE, 2015, 'Efficacy of eBird data as an aid in conservation planning and monitoring', JOURNAL OF FIELD ORNITHOLOGY, vol. 86, pp. 298 - 304, http://dx.doi.org/10.1111/jofo.12121
2015
Callaghan CT; Bowler D; Pereira H, 'Thermal flexibility and a generalist life history promote urban tolerance in butterflies', , http://dx.doi.org/10.32942/osf.io/sdkn2
Callaghan CT; Liu G; Mitchell BA; Poore AGB; Rowley J, 'Urbanization negatively impacts frog diversity at continental, regional, and local scales', , http://dx.doi.org/10.32942/osf.io/c3sjm
Callaghan CT; Ozeroff I; Hitchcock C; Chandler M, 'Capitalizing on opportunistic citizen science data to monitor urban biodiversity: a multi-taxa framework', , http://dx.doi.org/10.32942/osf.io/ahnex
Kirchhoff C; Callaghan CT; Keith DA; Indiarto D; Taseski G; Ooi MKJ; Le Breton TD; Mesaglio T; Kingsford R; Cornwell WK, 'Rapidly mapping fire effects on biodiversity at a large-scale using citizen science', , http://dx.doi.org/10.32942/osf.io/vc6ry
Callaghan CT; Poore AGB; Hofmann M; Roberts C; Pereira H, 'Large-bodied birds are over-represented in unstructured citizen science data', , http://dx.doi.org/10.32942/osf.io/vnspb
Staude I; Segar J; Callaghan CT; Ladouceur E; Meya J; Pereira H; Perino A, 'Urban conservation gardening in the decade of restoration', , http://dx.doi.org/10.32942/osf.io/p2syu
Liu G; Rowley J; Kingsford R; Callaghan CT, 'Species’ traits drive amphibian tolerance to anthropogenic habitat modification', , http://dx.doi.org/10.32942/osf.io/ku4mv
Lee JS; Callaghan CT; Cornwell WK, 'Using citizen science to measure recolonisation of birds after the Australian 2019-20 mega-fires', , http://dx.doi.org/10.32942/osf.io/ejd8f
Callaghan CT; Cornwell WK; Poore AGB; Yanina ; Morelli F, 'Urban tolerance of birds changes throughout the full annual cycle', , http://dx.doi.org/10.32942/osf.io/9m8wj
Book Chapters
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Callaghan CT; Pranty B; Pyle P; Patten MA, 2020, 'Gray-headed Swamphen (Porphyrio poliocephalus)', in , Cornell Lab of Ornithology, http://dx.doi.org/10.2173/bow.purswa3.01
2020
Callaghan CT; Brooks DM, 2020, 'Using citizen science to study exotic and invasive birds.', in Invasive birds: global trends and impacts, CABI, pp. 363 - 368, http://dx.doi.org/10.1079/9781789242065.0363
2020
Pranty B; Callaghan CT, 2020, 'Grey-headed Swamphen (Porphyrio poliocephalus Latham, 1801).', in Invasive birds: global trends and impacts, CABI, pp. 243 - 247, http://dx.doi.org/10.1079/9781789242065.0243
2020
Huysentruyt F; Callaghan CT; Strubbe D; Winston K; Adriaens T; Brooks DM, 2020, 'Egyptian Goose (Alopochen aegyptiaca Linnaeus, 1766).', in Invasive birds: global trends and impacts, CABI, pp. 206 - 212, http://dx.doi.org/10.1079/9781789242065.0206
2020
Callaghan CT; Pranty B; Pyle P; Patten MA, 2017, 'Gray-headed Swamphen (Porphyrio poliocephalus)', in Rodewald PG (ed.), The Birds of North America, Cornell Lab of Ornithology, Ithaca, New York, http://dx.doi.org/10.2173/bna.purswa3.01
2017
Callaghan CT; Brooks DM; Pyle P, 2017, 'Egyptian Goose (Alopochen aegyptiaca)', in Rodewald PG (ed.), The Birds of North America, Cornell Lab of Ornithology, Ithaca, New York, http://dx.doi.org/10.2173/bna.egygoo.01
2017
Preprints
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Lyons M; Brandis K; Murray N; Wilshire J; McCann J; Kingsford R; Callaghan C, Monitoring large and complex wildlife aggregations with drones, http://dx.doi.org/10.32942/osf.io/w247h
Lyons M; Brandis K; Callaghan C; McCann J; Mills C; Ryall S; Kingsford R, Bird interactions with drones, from individuals to large colonies, http://dx.doi.org/10.1101/109926
Organisational units