Greg Lewbart


Hot Topic Articles Now Being Tweeted!

January 26, 2014

Tags: Check Out My Twitter Account (@Glewbart) For Hot Topic Articles.

I'm going to try Twitter as a means of more frequently and promptly sending out information on the topic of invertebrate medicine. I'd like your feedback on this approach including any articles that you find interesting and/or important!



Hot Topic Article: Variability of marine climate on the North Icelandic Shelf in a 1357-year proxy archive based on growth increments in the bivalve Arctica islandica.

November 16, 2013

Tags: Paul G. Butler, Alan D. Wanamaker Jr., James D. Scoursea, Christopher A. Richardson. 2013. Palaeogeography, Palaeoclimatology, Palaeoecology Volume 373, 1 March 2013, Pages 141–151.

This interesting paper by an international team of scientists utilizes accurate aging of the bivalve Arctic islandica to track and age changes in the North Icelandic benthic environment over the last 1300-plus years. As part of the research the scientists have worked with a number of incredibly long-lived animals, some over 300 years of age, (more…)

Hot Topic Article: An unusual cuticular tumor-like growth on the abdomen of a lobster, Homarus americanus.

October 24, 2013

Tags: Jeffrey D. Shields and Hamish J. Small. 2013. Journal of Invertebrate Pathology 114(3):245-149.

This interesting case report by two researchers from the Virginia Institute of Marine Science provides details of an unusual crustacean tumor called a hamartoma. This is the first reported case of such a neoplasm in a lobster and only the second crustacean hamartoma on record. The authors hypothesize that the tumor resulted from wound (more…)

Who is Dr. Taylor Reynolds

June 8, 2013

Tags: Taylor L. Reynolds, D.V.M., Ph.D., Dipl. A.C.V.P.

Dr. Reynolds is a veterinary pathologist/scientist with a focus on the immune system. She received her BA from Colorado College, DVM from Tufts University School of Veterinary Medicine, and PhD from Johns Hopkins University School of Medicine.

While working in the Philippines, she co-discovered and described a rapidly emerging coral disease, Porites ulcerative (more…)

Hot Topic Article: Winter Loss Survey 2012 – 2013: Preliminary Results: Preliminary Results: Honey Bee Colony Losses in the United States, Winter 2012-2013.

June 8, 2013

Tags: Dennis vanEngelsdorp, Nathalie Steinhauer, Karen Rennich, Jeffery Pettis, Eugene J. Lengerich, David Tarpy, Keith S. Delaplane, Angela M. Spleen, James T. Wilkes, Robyn Rose, Kathleen Lee, Michael Wilson, John Skinner, and Dewey M. Caron for the Bee Informed Partnership. 2013.

A multi-institutional group of experts provide a summary of preliminary results on honey bee colony losses this past winter. While the 2012-2013 losses (approx. 31% of over 2.6 million colonies) ) exceeded those of the previous winter by over 40% they were consistent with the average colony loss since the winter of 2006-2007. Most professional beekeepers consider a 15% (more…)

Who is Dr. Edward Noga?

March 12, 2013

Tags: Edward J. Noga, MS, DVM

Edward J. Noga received his B.S. (with honors) from Florida Atlantic University as well as his M.S. in Biology. He received the D.V.M. degree with honors from the University of Florida in 1982. Also in 1982, he joined the faculty at North Carolina State University as Assistant Professor of Aquatic Medicine, where (more…)

Hot Topic Article: Disposable penis and its replenishment in a simultaneous hermaphrodite.

March 12, 2013

Tags: Ayami Sekizawa, Satoko Seki, Masakazu Tokuzato, Sakiko Shiga and Yasuhiro Nakashima. 2013. Biology Letters 9(2): 20121150. Published online February 13, 2013 doi: 10.1098/rsbl.2012.1150

Ayami Sekizawa of the Department of Biology and Geosciences, Osaka City University, Osaka Japan and colleagues have discovered that a species of nudibranch can autotomize its penis after copulating, and via "penis replenishment," is able to
copulate again in less than 24 hours. Following copulation penis autotomy occurred within 30 minutes. The authors observed and recorded over 30 reciprocal copulations for this study. Like many gastropods, Chromodoris reticulata is a simultaneous hermaphrodite, but this mating (more…)

Who is Dr. Michael Murray?

January 21, 2013

Tags: Michael Murray, DVM

Dr. Michael Murray is a 1977 graduate of the Purdue University School of Veterinary Medicine. Upon graduation, he spent 6 years serving in the US Army Veterinary Corps. Following completion of his tour of duty, he entered private veterinary practice in a traditional companion animal clinic in Seaside, CA. In 1989, Dr. Murray founded the “Avian and (more…)

Hot Topic Article: Shock avoidance by discrimination learning in the shore crab (Carcinus maenas) is consistent with a key criterion for paina

January 21, 2013

Tags: Barry Magee and Robert W. Elwood. 2013. Journal of Experimental Biology 216:353-358.

Barry Magee and his professor Robert Elwood of the School of Biological Sciences, Queen's University, Belfast, designed an experiment utilizing wild caught shore crabs (Carcinus maenas) that determined this species can detect and selectively avoid noxious stimuli much as a vertebrate would. The article's extensive reference list includes other articles on this and closely (more…)

Who is Dr. Ilze Berzins?

January 13, 2013

Tags: Ilze K. Berzins, Ph.D., D.V.M.

Ilze K. Berzins has an inter-disciplinary approach to her clinical, teaching, conservation and research skills focused around the concept of One Health – healthy ecosystems, healthy animals, and healthy humans. She is currently working on a Masters of Public Health to expand her career path to better encompass the goals of conservation medicine within One (more…)

Selected Works

Science Writing
The Second Edition of Invertebrate Medicine was released in December, 2011. It has been substantially expanded from the first edition to reflect the tremendous growth of the pertinent literature and work that is being accomplished in the fields of invertebrate animal medicine, disease investigation, conservation, husbandry, and animal welfare. In 2012 it is being recognized with a Text and Academic Authors Association TEXTY award for excellence in the Life Sciences Category and first place in the Health Care Professionals (nonphysicians) category of the 2012 American Medical Writers Association Book Awards.
This book, edited by Karen L. Rosenthal, Neil A. Forbes, Frederic L. Frye, and Gregory A. Lewbart, utilizes approximately 400 clinical cases to describe and address many of the major medical and surgical conditions of exotic animal pets.
Invertebrate Medicine is the single most comprehensive resource available today on invertebrate animal medicine.
" will without doubt want to own this excellent collection of questions from fish veterinarians on both sides of the Atlantic...." --David Williams, The Veterinary Journal
Creative Non-Fiction
"This is a delightful book. The stories, each amazingly different, are told with warmth, humor and sensitivity. They are sometimes sad, always captivating. It is a book you can dip into on a journey or read before sleep at night. Buy it and give copies to your friends." Jane Goodall
“....a darn good yarn.”
--Ken Moore, Naples Daily News
“...well-told and environmentally informative story about buried treasure and smuggling of exotic animals...”
--Rod Cockshutt, The News & Observer