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{{Redirect|Malcolm McCallum|the Canadian politician|Malcolm Alex McCallum}}{{Short description|American herpetologist}}
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⚫ '''Malcolm L. McCallum''' (born December 26, 1968 in Maywood, Illinois<ref>Birth Announcements. Joliet Herald News. January 3, 1969</ref>) is an American ], ], ], and ] and is known for his work on the ]. He is also a co-founder of the herpetology journal, '']''.<ref name="herpconbio.org"></ref> He is a key figure in amphibian biology and his research has produced numerous landmark studies. <ref>''Juniper, Tony. (2019) One of the major threats to biodiversity is infectious disease, Pp. 280 In: The Ecology Book, Penguin Randomhouse. </ref> His work has been covered by ],<ref>'']''. .</ref> '']'',<ref name=Discover10studies>{{cite web|url=http://discovermagazine.com/2008/dec/04-10-studies-that-revealed-the-great-global-amphibian-die-off-and-some-possible-solutions |last=Pepitone|first= Julianne|title= 10 studies that revealed the great global amphibian die-off -- and some possible solutions|publisher=Discover Magazine|date=November 4, 2008}}</ref> and other media outlets.
* ]

}}
}}
⚫ '''Malcolm L. McCallum''' (born December 26, 1968<ref>Birth Announcements. Joliet Herald News. January 3, 1969</ref>) is an American ], ], ], and ] and is known for his work on the ]. He is also a co-founder of the herpetology journal, '']''.<ref name="herpconbio.org"></ref> He is a key figure in amphibian biology and his research has produced numerous landmark studies.<ref>''Juniper, Tony. (2019) One of the major threats to biodiversity is infectious disease, Pp. 280 In: The Ecology Book, Penguin Randomhouse.''</ref> His work has been covered by ],<ref>'']''. .</ref> '']'',<ref name=Discover10studies>{{cite web|url=http://discovermagazine.com/2008/dec/04-10-studies-that-revealed-the-great-global-amphibian-die-off-and-some-possible-solutions |last=Pepitone|first= Julianne|title= 10 studies that revealed the great global amphibian die-off -- and some possible solutions|publisher=Discover Magazine|date=November 4, 2008}}</ref> and other media outlets.


==Education, research, teaching and service== ==Education, research, teaching and service==
McCallum was born in Maywood, Illinois. He earned his ] with a double major in ] and ] from ],<ref>{{Cite web|url=https://en.m.wikipedia.org/List_of_Illinois_State_University_alumni|title=List of Illinois State University alumni}}</ref>{{Circular reference|date=July 2021}}. He earned a ] in ] from ]<ref>.
⚫ In 1997 his discovery of deformed frogs in Madison County, Illinois<ref></ref> received media coverage in St. Louis news outlets.<ref>{{cite news |last=Kravetz |first=Andy |date=1 August 1997 |title=SIUE pond yields deformed frogs, questions of what they portend |url=http://business.highbeam.com/435553/article-1G1-56492824/siue-pond-yields-deformed-frogs-questions-they-portend |archive-url=https://web.archive.org/web/20150120214529/http://business.highbeam.com/435553/article-1G1-56492824/siue-pond-yields-deformed-frogs-questions-they-portend |url-status=dead |archive-date=20 January 2015 |newspaper=St Louis Post-Dispatch}}</ref> He then worked at the St. Louis Children's Aquarium as the institution's grant writer, and designed educational programs, conducted research on the use of ] (bST) applications in aquaculture, and delivered tours and extension programming until he left to pursue his PhD in 1999. He also organized and edited the First International Symposium on the conservation and sustainability of the ornamental fish industry on Rio Negro River, Manaus.<ref>McCallum, M.L. (Editor). Proceedings of the First International Conference on Biodiversity and Sustainability of the Rio Negro Basin Brazil. Mid-America Aquacenter Publications. St. Louis, Missouri. 1,256 pages. 1999.</ref> He participated in several areas of research that later were published by the aquarium{{which|date=April 2015}} from 1999-2001.<ref></ref>{{failed verification|date=April 2015}} ] was his doctoral mentor.
University Marketing and Communications, "02/20/1995 - EIU December Graduates Named.pdf" (1995). 1995. 63.
http://thekeep.eiu.edu/press_releases_1995/63,</ref> and the ] degree in ] from ], specializing in ] and ]. He is notable alumni from all three universities.<ref>{{Cite web|url=https://oneclass.com/blog/illinois-state-university/181589-math-courses-at-illinois-state-university.en.html|title=Math Courses at Illinois State University - OneClass Blog}}</ref><ref>{{Cite web|url=https://edurank.org/uni/illinois-state-university/alumni/|title=79 Notable alumni of Illinois State University|date=11 August 2021 }}</ref><ref>{{Cite web|url=https://edurank.org/uni/eastern-illinois-university/alumni/|title=37 Notable alumni of Eastern Illinois University|date=11 August 2021 }}</ref><ref>{{Cite web|url=https://edurank.org/uni/arkansas-state-university-main-campus/alumni/|title=39 Notable alumni of Arkansas State University|date=11 August 2021 }}</ref> He has been ranked among the 150 most influential environmental scientists<ref>{{Cite web|url=https://academicinfluence.com|title=Academic Influence}}</ref> and in the top 200 american zoologists.<ref>{{Cite web|url=https://academicinfluence.com/people/malcolm-l-mccallum|title=Academic Influence}}</ref>

⚫ In 1997 his discovery of deformed frogs in Madison County, Illinois<ref></ref> received media coverage in St. Louis news outlets.<ref>{{cite news |last=Kravetz |first=Andy |date=1 August 1997 |title=SIUE pond yields deformed frogs, questions of what they portend |url=http://business.highbeam.com/435553/article-1G1-56492824/siue-pond-yields-deformed-frogs-questions-they-portend |archive-url=https://web.archive.org/web/20150120214529/http://business.highbeam.com/435553/article-1G1-56492824/siue-pond-yields-deformed-frogs-questions-they-portend |url-status=dead |archive-date=20 January 2015 |newspaper=St Louis Post-Dispatch}}</ref> He then worked at the St. Louis Children's Aquarium as the institution's grant writer, and designed educational programs, conducted research on the use of ] (bST) applications in aquaculture, and delivered tours and extension programming until he left to pursue his PhD in 1999. He also organized and edited the First International Symposium on the conservation and sustainability of the ornamental fish industry on Rio Negro River, Manaus.<ref>McCallum, M.L. (Editor). Proceedings of the First International Conference on Biodiversity and Sustainability of the Rio Negro Basin Brazil. Mid-America Aquacenter Publications. St. Louis, Missouri. 1,256 pages. 1999.</ref> He participated in several areas of research that later were published by the aquarium{{which|date=April 2015}} from 1999-2001.<ref></ref>{{failed verification|date=April 2015}} ] was his doctoral mentor.


Many of his early papers were focused on ], but they also cover amphibian conservation, ecological immunology, and general biology. He is widely published on the life history and conservation of ] ('']'' ) with papers on its systematics, immunology, behavior, life history, and conservation needs. He earned the ] degree in ] from ], specializing in ] and ]. He continued this research as an Assistant Professor at ] from 2003–2005. Many of his early papers were focused on ], but they also cover amphibian conservation, ecological immunology, and general biology. He is widely published on the life history and conservation of ] ('']'' ) with papers on its systematics, immunology, behavior, life history, and conservation needs. He continued this research as an assistant professor at ] from 2003–2005.
] ]
In 2006 McCallum and several other scientists established the journal '']''. In 2006 McCallum and several other scientists established the journal '']''.
] ]
He moved to ] in 2005. Here, he developed a novel teaching method for classroom discussions. "The result of this model was not only to circumvent many lazy student behaviors, but also to improve reading comprehension by familiarizing students with how to read, process, and evaluate complex scientific manuscripts in a short period of time." Hedwig Pöllöläinen.<ref>{{Cite journal|last=McCallum|first=M.|date=2010|title=A Method for Encouraging Classroom Discussion of Scientific Papers|url=https://scienceblogs.com/grrlscientist/2010/07/16/parrots-people-and-pedagogies|journal=Bulletin of the Ecological Society of America|volume=91|issue=3|pages=363–366|doi=10.1890/0012-9623-91.3.363|issn=0012-9623|doi-access=free|bibcode=2010BuESA..91..363M }}</ref>
He moved to ] in 2005.
] ]
McCallum used ] in his paper, ''Amphibian decline or extinction? Current losses dwarf background extinction rates'',<ref>{{cite journal|last=McCallum|first= M.L. |year=2007|title= Amphibian decline or extinction? Current losses dwarf background rates|journal= Journal of Herpetology|volume= 41|issue=3|pages=483–491|url=http://www.herpconbio.org/McCallum/amphibian%20extinctions.pdf|doi=10.1670/0022-1511(2007)412.0.co;2}}</ref> to compare recent extinction rates of amphibians to their rates at the k-Pg boundary. His calculations demonstrated that the losses in amphibian biodiversity in recent times represented one of the most rapid losses in biodiversity ever observed. In 2008 the study was listed by '']'' as #4 among ten "landmark papers" on the topic of ].<ref name=Discover10studies/> His use of fuzzy approaches was extended to two studies ] impacts on herpetofauna.<ref></ref><ref></ref> His 2015 paper argued that species losses of vertebrate animals since 1980 have been faster that the Cretaceous–Paleogene extinction event that wiped out dinosaurs 65 million years ago, suggesting we are in a 6th mass extinction.<ref>Rhett A. Butler (June 21, 2015). McCallum used ] in his paper, ''Amphibian decline or extinction? Current losses dwarf background extinction rates'',<ref>{{cite journal|last=McCallum|first= M.L. |year=2007|title= Amphibian decline or extinction? Current losses dwarf background rates|journal= Journal of Herpetology|volume= 41|issue=3|pages=483–491|url=http://www.herpconbio.org/McCallum/amphibian%20extinctions.pdf|doi=10.1670/0022-1511(2007)412.0.co;2|s2cid= 30162903 }}</ref> to compare recent extinction rates of amphibians to their rates at the k-Pg boundary. His calculations demonstrated that the losses in amphibian biodiversity in recent times represented one of the most rapid losses in biodiversity ever observed. In 2008 the study was listed by '']'' as #4 among ten "landmark papers" on the topic of ].<ref>{{cite journal|last=Pepitone|first=Julianne |year=2008|title= 10 Studies That Revealed the Great Global Amphibian Die-Off—and Some Possible Solutions|journal= Discover Magazine|volume= 41|issue=7|url=}}</ref> His use of fuzzy approaches was extended to two studies ] impacts on herpetofauna.<ref></ref><ref></ref> His 2015 paper argued that species losses of vertebrate animals since 1980 have been faster that the Cretaceous–Paleogene extinction event that wiped out dinosaurs 65 million years ago, suggesting we are in a 6th mass extinction.<ref>Rhett A. Butler (June 21, 2015).
Study confirms what scientists have been saying for decades: the sixth mass extinction is real and caused by us. http://news.mongabay.com/2015/0621-sixth-mass-extinction.html</ref><ref>Anonymous. (June 16, 2015). Today's biodiversity losses comprise a sixth mass extinction. BirdWatch Magazine (UK) http://www.birdwatch.co.uk/channel/newsitem.asp?c=11&cate=__15971</ref> Study confirms what scientists have been saying for decades: the sixth mass extinction is real and caused by us. http://news.mongabay.com/2015/0621-sixth-mass-extinction.html</ref><ref>Anonymous. (June 16, 2015). Today's biodiversity losses comprise a sixth mass extinction. BirdWatch Magazine (UK) http://www.birdwatch.co.uk/channel/newsitem.asp?c=11&cate=__15971</ref>


In 2014 he conducted a study using ] to data mine ] search data to infer public interest on the environment, and concluded that interest in the environment had fallen since 2004.<ref>{{cite journal|last1=McCallum|first1=Malcolm L.|last2=Bury|first2=Gwendolyn W.|title=Google search patterns suggest declining interest in the environment|journal=Biodiversity and Conservation|date=2013|volume=22|issue=6–7|pages=1355–1367|doi=10.1007/s10531-013-0476-6}}</ref> In 2019, he compared Google searches before and after release of the landmark encyclical, ], revealing that interest in the environment rose markedly in most countries around the world.<ref>{{Cite journal|last=McCallum|first=Malcolm L.|date=2019-07-01|title=Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, Laudato Si′|journal=Biological Conservation|volume=235|pages=209–225|doi=10.1016/j.biocon.2019.04.010|issn=0006-3207}}</ref><ref>{{Cite web|url=https://news.mongabay.com/2019/05/interest-in-protecting-environment-up-since-popes-2015-encyclical/|title=Interest in protecting environment up since Pope's 2015 encyclical|date=2019-05-21|website=Mongabay Environmental News|language=en-US|access-date=2019-05-23}}</ref> In 2014 he conducted a study using ] to data mine ] search data to infer public interest on the environment, and concluded that interest in the environment had fallen since 2004.<ref>{{cite journal|last1=McCallum|first1=Malcolm L.|last2=Bury|first2=Gwendolyn W.|title=Google search patterns suggest declining interest in the environment|journal=Biodiversity and Conservation|date=2013|volume=22|issue=6–7|pages=1355–1367|doi=10.1007/s10531-013-0476-6|bibcode=2013BiCon..22.1355M |s2cid=15593201}}</ref> In 2019, he compared Google searches before and after release of the landmark encyclical, ], revealing that interest in the environment rose markedly in most countries around the world.<ref>{{Cite journal|last=McCallum|first=Malcolm L.|date=2019-07-01|title=Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, Laudato Si′|journal=Biological Conservation|volume=235|pages=209–225|doi=10.1016/j.biocon.2019.04.010|bibcode=2019BCons.235..209M |s2cid=181819204|issn=0006-3207}}</ref><ref>{{Cite web|url=https://news.mongabay.com/2019/05/interest-in-protecting-environment-up-since-popes-2015-encyclical/|title=Interest in protecting environment up since Pope's 2015 encyclical|date=2019-05-21|website=Mongabay Environmental News|language=en-US|access-date=2019-05-23}}</ref>


==Selected bibliography== ==Selected bibliography==
McCallum is the author of over 100 publications.<ref>McCallum, M.L. 2010. Characterizing author citation ratings of herpetologists using Harzing’s Publish or Perish. Herpetology Notes 3:239-245.</ref> McCallum is the author of over 100 publications.<ref>McCallum, M.L. 2010. Characterizing author citation ratings of herpetologists using Harzing’s Publish or Perish. Herpetology Notes 3:239-245.</ref>
*Meshaka, Walter E. Jr., Suzanne L. Collins, R. Bruce Bury, Malcolm L. McCallum (2022) '']''. University Press of Florida.
*McCallum, M.L. (2021) Turtle biodiversity losses suggest coming sixth mass extinction. Biodiversity and Conservation 30:in press. https://link.springer.com/article/10.1007/s10531-021-02140-8
*McCallum, M.L. (2021) Turtle biodiversity losses suggest coming sixth mass extinction. Biodiversity and Conservation 30: 1257–1275<ref>{{Cite journal |last=McCallum |first=Malcolm L. |date=2021-04-01 |title=Turtle biodiversity losses suggest coming sixth mass extinction |url=https://doi.org/10.1007/s10531-021-02140-8 |journal=Biodiversity and Conservation |language=en |volume=30 |issue=5 |pages=1257–1275 |doi=10.1007/s10531-021-02140-8 |bibcode=2021BiCon..30.1257M |s2cid=233903598 |issn=1572-9710}}</ref>
*McCallum, M.L. (2019) Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, ''Laudato Si′.'' Biological Conservation 235:209-225. *McCallum, M.L. (2019) Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, ''Laudato Si′.'' Biological Conservation 235:209-225.
*McCallum, M.L. (2015) Vertebrate biodiversity losses point to sixth mass extinction. Biodiversity and Conservation 24:2497-.2519.<ref>{{cite journal|last1=McCallum|first1=Malcolm|title=Vertebrate biodiversity losses point to a sixth mass extinction|journal=Biodiversity and Conservation|date=September 2015|volume=24|issue=10|pages=2497–2519|doi=10.1007/s10531-015-0940-6}}</ref> *McCallum, M.L. (2015) Vertebrate biodiversity losses point to sixth mass extinction. Biodiversity and Conservation 24:2497-.2519.<ref>{{cite journal|last1=McCallum|first1=Malcolm|title=Vertebrate biodiversity losses point to a sixth mass extinction|journal=Biodiversity and Conservation|date=September 2015|volume=24|issue=10|pages=2497–2519|doi=10.1007/s10531-015-0940-6|bibcode=2015BiCon..24.2497M |s2cid=16845698}}</ref>
*McCallum, M.L. and G.W. Bury (2014). Public interest in the environment is falling: A Response to Ficetola (2013). Biodiversity and Conservation 23:1057-1362. *McCallum, M.L. and G.W. Bury (2014). Public interest in the environment is falling: A Response to Ficetola (2013). Biodiversity and Conservation 23:1057-1362.
*McCallum, M.L. and J.L. McCallum. (2014). Ecological Release of an exotic species upon removal of an invasive predator. Journal of North American Herpetology 2014:21 – 27. *McCallum, M.L. and J.L. McCallum. (2014). Ecological Release of an exotic species upon removal of an invasive predator. Journal of North American Herpetology 2014:21 – 27.
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==External links== ==External links==
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Latest revision as of 03:20, 15 May 2024

"Malcolm McCallum" redirects here. For the Canadian politician, see Malcolm Alex McCallum.American herpetologist
Malcolm L. McCallum
Malcolm McCallum at his home in Texarkana circa 2008 with a bantam golden phoenix rooster
Born (1968-12-26) December 26, 1968 (age 56)
Maywood, Illinois
NationalityAmerican
Alma mater
Scientific career
FieldsEnvironmental Sciences
Institutions


Malcolm L. McCallum (born December 26, 1968) is an American environmental scientist, conservationist, herpetologist, and natural historian and is known for his work on the Holocene Extinction. He is also a co-founder of the herpetology journal, Herpetological Conservation and Biology. He is a key figure in amphibian biology and his research has produced numerous landmark studies. His work has been covered by David Attenborough, Discover Magazine, and other media outlets.

Education, research, teaching and service

McCallum was born in Maywood, Illinois. He earned his BS with a double major in agriculture and biology from Illinois State University,. He earned a MS in Environmental Biology from Eastern Illinois University and the PhD degree in Environmental Science from Arkansas State University, specializing in ecotoxicology and conservation ecology. He is notable alumni from all three universities. He has been ranked among the 150 most influential environmental scientists and in the top 200 american zoologists.

In 1997 his discovery of deformed frogs in Madison County, Illinois received media coverage in St. Louis news outlets. He then worked at the St. Louis Children's Aquarium as the institution's grant writer, and designed educational programs, conducted research on the use of bovine somatotropin (bST) applications in aquaculture, and delivered tours and extension programming until he left to pursue his PhD in 1999. He also organized and edited the First International Symposium on the conservation and sustainability of the ornamental fish industry on Rio Negro River, Manaus. He participated in several areas of research that later were published by the aquarium from 1999-2001. Stanley E. Trauth was his doctoral mentor.

Many of his early papers were focused on natural history, but they also cover amphibian conservation, ecological immunology, and general biology. He is widely published on the life history and conservation of Blanchard's cricket frog (Acris blanchardi ) with papers on its systematics, immunology, behavior, life history, and conservation needs. He continued this research as an assistant professor at Louisiana State University at Shreveport from 2003–2005.

Southern Leopard Frogs with abnormal limbs of unknown causation (c. 1997)

In 2006 McCallum and several other scientists established the journal Herpetological Conservation and Biology.

Malcolm L. McCallum teaching field biology on the Caddo River, Arkansas in 2005

He moved to Texas A&M University Texarkana in 2005. Here, he developed a novel teaching method for classroom discussions. "The result of this model was not only to circumvent many lazy student behaviors, but also to improve reading comprehension by familiarizing students with how to read, process, and evaluate complex scientific manuscripts in a short period of time." Hedwig Pöllöläinen.

Jamie and Malcolm McCallum with David Attenborough on the set of Life in Cold Blood in the Ouachita Mountains in Arkansas.

McCallum used fuzzy logic in his paper, Amphibian decline or extinction? Current losses dwarf background extinction rates, to compare recent extinction rates of amphibians to their rates at the k-Pg boundary. His calculations demonstrated that the losses in amphibian biodiversity in recent times represented one of the most rapid losses in biodiversity ever observed. In 2008 the study was listed by Discover Magazine as #4 among ten "landmark papers" on the topic of amphibian extinctions and declines. His use of fuzzy approaches was extended to two studies addressing climate change impacts on herpetofauna. His 2015 paper argued that species losses of vertebrate animals since 1980 have been faster that the Cretaceous–Paleogene extinction event that wiped out dinosaurs 65 million years ago, suggesting we are in a 6th mass extinction.

In 2014 he conducted a study using Google Trends to data mine Google search data to infer public interest on the environment, and concluded that interest in the environment had fallen since 2004. In 2019, he compared Google searches before and after release of the landmark encyclical, Laudato Si', revealing that interest in the environment rose markedly in most countries around the world.

Selected bibliography

McCallum is the author of over 100 publications.

  • Meshaka, Walter E. Jr., Suzanne L. Collins, R. Bruce Bury, Malcolm L. McCallum (2022) Exotic Amphibians and Reptiles of the United States. University Press of Florida.
  • McCallum, M.L. (2021) Turtle biodiversity losses suggest coming sixth mass extinction. Biodiversity and Conservation 30: 1257–1275
  • McCallum, M.L. (2019) Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, Laudato Si′. Biological Conservation 235:209-225.
  • McCallum, M.L. (2015) Vertebrate biodiversity losses point to sixth mass extinction. Biodiversity and Conservation 24:2497-.2519.
  • McCallum, M.L. and G.W. Bury (2014). Public interest in the environment is falling: A Response to Ficetola (2013). Biodiversity and Conservation 23:1057-1362.
  • McCallum, M.L. and J.L. McCallum. (2014). Ecological Release of an exotic species upon removal of an invasive predator. Journal of North American Herpetology 2014:21 – 27.
  • McCallum, M.L., M. Matlock, J. Treas, B. Safi, W. Sanson, J.L. McCallum. (2013). Endocrine disruption of sexual selection by an estrogenic herbicide in Tenebrio molitor. Ecotoxicology 22:1461-1466.
  • McCallum, M.L., and G.W. Bury. (2013). Google search patterns suggest declining interest in conservation and environment. Biodiversity and Conservation 22:1355 – 1367.

References

  1. Birth Announcements. Joliet Herald News. January 3, 1969
  2. Bury, RB, ML McCallum, SE Trauth, and RA Saumure. 2006. Dawning of Herpetological Conservation and Biology: A special welcome to your new journal. Herpetological Conservation and Biology 1(1):i-iii.
  3. Juniper, Tony. (2019) One of the major threats to biodiversity is infectious disease, Pp. 280 In: The Ecology Book, Penguin Randomhouse.
  4. Life in Cold Blood. "The Land Invaders".
  5. Pepitone, Julianne (November 4, 2008). "10 studies that revealed the great global amphibian die-off -- and some possible solutions". Discover Magazine.
  6. "List of Illinois State University alumni".
  7. . University Marketing and Communications, "02/20/1995 - EIU December Graduates Named.pdf" (1995). 1995. 63. http://thekeep.eiu.edu/press_releases_1995/63,
  8. "Math Courses at Illinois State University - OneClass Blog".
  9. "79 Notable alumni of Illinois State University". 11 August 2021.
  10. "37 Notable alumni of Eastern Illinois University". 11 August 2021.
  11. "39 Notable alumni of Arkansas State University". 11 August 2021.
  12. "Academic Influence".
  13. "Academic Influence".
  14. McCallum, M.L. 1999. Rana sphenocephala (southern leopard frog) malformities found in Illinois with behavioral notes. Transactions of the Illinois State Academy of Science 92:257-264.
  15. Kravetz, Andy (1 August 1997). "SIUE pond yields deformed frogs, questions of what they portend". St Louis Post-Dispatch. Archived from the original on 20 January 2015.
  16. McCallum, M.L. (Editor). Proceedings of the First International Conference on Biodiversity and Sustainability of the Rio Negro Basin Brazil. Mid-America Aquacenter Publications. St. Louis, Missouri. 1,256 pages. 1999.
  17. Conservation for the Oceans. World Aquarium. St. Louis. Activities 1999-2014.
  18. McCallum, M. (2010). "A Method for Encouraging Classroom Discussion of Scientific Papers". Bulletin of the Ecological Society of America. 91 (3): 363–366. Bibcode:2010BuESA..91..363M. doi:10.1890/0012-9623-91.3.363. ISSN 0012-9623.
  19. McCallum, M.L. (2007). "Amphibian decline or extinction? Current losses dwarf background rates" (PDF). Journal of Herpetology. 41 (3): 483–491. doi:10.1670/0022-1511(2007)41[483:adoecd]2.0.co;2. S2CID 30162903.
  20. Pepitone, Julianne (2008). "10 Studies That Revealed the Great Global Amphibian Die-Off—and Some Possible Solutions". Discover Magazine. 41 (7).
  21. McCallum, M.L., J.L. McCallum, S.E. Trauth. 2009. Predicted climate change may spark box turtle declines. Amphibia-Reptilia 30:259-264.
  22. McCallum, M.L. 2010. Future Climate Change Spells Catastrophe for Blanchard’s Cricket Frog, Acris blanchardi (Amphibia, Anura, Hylidae). Acta Herpetologica 5(1):119-130.
  23. Rhett A. Butler (June 21, 2015). Study confirms what scientists have been saying for decades: the sixth mass extinction is real and caused by us. http://news.mongabay.com/2015/0621-sixth-mass-extinction.html
  24. Anonymous. (June 16, 2015). Today's biodiversity losses comprise a sixth mass extinction. BirdWatch Magazine (UK) http://www.birdwatch.co.uk/channel/newsitem.asp?c=11&cate=__15971
  25. McCallum, Malcolm L.; Bury, Gwendolyn W. (2013). "Google search patterns suggest declining interest in the environment". Biodiversity and Conservation. 22 (6–7): 1355–1367. Bibcode:2013BiCon..22.1355M. doi:10.1007/s10531-013-0476-6. S2CID 15593201.
  26. McCallum, Malcolm L. (2019-07-01). "Perspective: Global country-by-country response of public interest in the environment to the papal encyclical, Laudato Si′". Biological Conservation. 235: 209–225. Bibcode:2019BCons.235..209M. doi:10.1016/j.biocon.2019.04.010. ISSN 0006-3207. S2CID 181819204.
  27. "Interest in protecting environment up since Pope's 2015 encyclical". Mongabay Environmental News. 2019-05-21. Retrieved 2019-05-23.
  28. McCallum, M.L. 2010. Characterizing author citation ratings of herpetologists using Harzing’s Publish or Perish. Herpetology Notes 3:239-245.
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