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Cfreptiles & Amphibians WWW.IRCF.ORG/REPTILESANDAMPHIBIANSJOURNALTABLE OF CONTENTS IRCF REPTILES & IRCFAMPHIBIANS REPTILES • VOL 15,& NAMPHIBIANSO 4 • DEC 2008 •189 27(1):114–115 • APR 2020 IRCF REPTILES & AMPHIBIANS CONSERVATION AND NATURAL HISTORY TABLE OF CONTENTS METHODS FEATURE ARTICLES . Chasing Bullsnakes (Pituophis catenifer sayi) in Wisconsin: CollectingOn the Road toNon-native Understanding the Ecology and Conservation ofMadagascar the Midwest’s Giant Serpent ...................... Joshua Giant M. Kapfer 190 Day . The Shared History of Treeboas (Corallus grenadensis) and Humans on Grenada: A Hypothetical Excursion ............................................................................................................................Robert W. Henderson 198 Geckos,RESEARCH ARTICLES Phelsuma grandis (Gray 1870), . The Texas Horned Lizard in Central and Western Texas ....................... Emily Henry, Jason Brewer, Krista Mougey, and Gad Perry 204 in Florida:. The Knight Anole (Anolis equestrisA) inNovel Florida Approach Combining .............................................Brian J. Camposano, Kenneth L. Krysko, Kevin M. Enge, Ellen M. Donlan, and Michael Granatosky 212 theCONSERVATION Fishing ALERT and Glue-trap Techniques . World’s Mammals in Crisis ............................................................................................................................................................. 220 . More Than Mammals ...............................................................................................................................Thomas W. Fieldsend1 and Kenneth L. Krysko2 ....................................... 223 . The “Dow Jones Index” of Biodiversity ........................................................................................................................................... 225 1Department of Biological Sciences, Florida International University, Miami, Florida 33199, USA ([email protected]) 2Florida MuseumHUSBANDRY of Natural History, Division of Herpetology, University of Florida, Gainesville, Florida 32611, USA ([email protected]) . Captive Care of the Central Netted Dragon ....................................................................................................... Shannon Plummer 226 he MadagascarPROFILE Giant Day Gecko (Phelsuma grandis) is (Krysko and Hooper 2006). Although one occasionally can Tnative to Madagascar. Kraig Adler: (Glaw A Lifetime and Promoting Vences Herpetology 2007), ................................................................................................ but has capture one of these geckos Michael by L. hand,Treglia 234doing so without harm- been introduced toCOMMENTARY Florida, where it is now established in ing them is very difficult, due to both the ease with which Miami (Thawley and. TheStroud Turtles Have2017), Been Watching Homestead Me ........................................................................................................................ (Fieldsend their tissue-thin skin is torn Eric andGangloff their 238 readiness to autoto- and Krysko 2019a), and on at least 14 of the Florida Keys mize their tails when handled. Similarly, captures employing BOOK REVIEW (Fieldsend and Krysko. Threatened 2019b). Amphibians Capturing of the World editedthese by S.N.geckos Stuart, M. Hoffmann,a noose J.S. pole Chanson, invariably N.A. Cox, lead to substantial tearing of the skin is challenging because theyR. Berridge, are P. extremelyRamani, and B.E. waryYoung .............................................................................................................. and quick around the neck. “Fishing” Robertwith Powell a baited 243 hook (Krysko 2000) CONSERVATION RESEARCH REPORTS: Summaries of Published Conservation Research Reports ................................. 245 NATURAL HISTORY RESEARCH REPORTS: Summaries of Published Reports on Natural History ................................. 247 NEWBRIEFS ...................................................................................................................................................................................... 248 EDITORIAL INFORMATION ..................................................................................................................................................... 251 FOCUS ON CONSERVATION: A Project You Can Support ............................................................................................... 252 Front Cover. Shannon Plummer. Back Cover. Michael Kern Totat et velleseque audant mo Totat et velleseque audant mo estibus inveliquo velique rerchil estibus inveliquo velique rerchil erspienimus, quos accullabo. Ilibus erspienimus, quos accullabo. Ilibus aut dolor apicto invere pe dolum aut dolor apicto invere pe dolum fugiatis maionsequat eumque fugiatis maionsequat eumque moditia erere nonsedis ma sectiatur moditia erere nonsedis ma sectia- ma derrovitae voluptam, as quos tur ma derrovitae voluptam, as accullabo. Fig. 1. A Madagascar Giant Day Gecko (Phelsuma grandis) stuck in a mouse glue trap, into which it was lured with a baited hook (left). Olive oil was used to remove the unharmed gecko from the trap (right). Photographs taken on Plantation Key, Monroe County, Florida by Thomas Fieldsend. Copyright © 2020. Thomas W. Fieldsend. All rights reserved. 114 IRCF Reptiles & Amphibians ISSN 1098-6324 FIELDSEND AND KRYSKO IRCF REPTILES & AMPHIBIANS • 27(1):114–115 • APR 2020 is effective, but leads to damaged tissue in the mouth as well the cricket. Almost all of the geckos on which we tried this as both tail autotomization and substantial skin damage when technique were hesitant to actually step onto the glue trap, the struggling and thrashing gecko is handled. but they were eventually enticed to do so and became stuck. Bauer and Sadlier (1992) detailed their use of mouse We have never observed a P. grandis free itself from a glue glue traps to successfully capture arboreal geckos in New trap. Once the lizard is ensnared, we release it from the glue Caledonia. Herein, we describe a novel approach combining trap by applying harmless olive oil or corn oil to its body and a glue trap along with the fishing method. This new approach gently “peeling” it off of the trap (Bauer and Sadlier 1992). has proven highly effective at capturing Phelsuma grandis in Even in the case of the P. grandis, doing this rarely resulted in southern Florida and is likely to be suitable for a variety of tail autotomy or any damage to the skin. similarly sized (≤ 30 cm) arboreal lizards. While live crickets are our bait of choice, many other When we locate a target (Phelsuma grandis) in an arbo- invertebrate species probably would work equally well as bait. real location such as the trunk of a tree or a man-made struc- Cole (2004) recorded various arboreal geckos pursuing a dot ture like a wall or fence, we place a mouse glue trap on level of light projected from a laser pointer, sometimes following it ground, ensuring that it abuts the base of the tree or struc- all the way to the ground, and we have successfully used this ture on which the lizard is perched. At least in the case of P. technique to capture nocturnal House Geckos (Hemidactylus grandis, the glue trap can be positioned without alarming the spp.) in Florida. We have not yet tried using a laser pointer for lizard by keeping one’s movements slow and controlled, and P. grandis, but it could potentially serve as a substitute for a by keeping one’s eyes lowered and not directly looking at the baited hook. Our new approach has proven highly effective at lizard. We back away to a distance of around 2 m and dangle capturing P. grandis in southern Florida and is likely to be suit- a hook baited with a live domestic cricket within the field able for a variety of similarly sized (≤ 30 cm) arboreal lizards. of vision of the lizard, taking care to keep the cricket close to the surface on which the lizard is perched; if this is done Literature Cited correctly, the lizard will almost always take an interest in the Bauer, A. and R. Sadlier. 1992. The use of mouse glue traps to capture lizards. cricket and pursue it. We begin gradually maneuvering the Herpetological Review 23: 112–113. cricket toward the ground, keeping it far enough away from Cole, N.C. 2004. A novel technique for capturing arboreal geckos. Herpetological Review 35: 358–359. the lizard to prevent it from being eaten, but close enough Fieldsend, T.W. and K.L. Krysko. 2019a. Madagascar giant day gecko (Phelsuma to ensure that it remains within the lizard’s field of vision. grandis) established in Homestead, Miami-Dade County, Florida, USA. Most geckos on which this approach was tested followed the Reptiles & Amphibians 26: 159–160. cricket until they were near the base of the tree or structure Fieldsend, T.W. and K.L. Krysko. 2019b. Geographic distribution: Phelsuma gran- dis (Madagascar Giant Day Gecko). Herpetological Review 50: 527–527. (i.e., < 30 cm). At this point, however, some became wary and Glaw, F. and M. Vences. 2007. A Field Guide to the Amphibians and Reptiles of hesitant to continue pursuing the prey. If this occurred, we Madagascar. Third edition. Vences & Glaw, Köln, Germany. allowed the lizard to take one to three crickets from the hook, Krysko, K.L. 2000. A fishing technique for collecting the introduced Knight Anole (Anolis equestris) in southern Florida. Caribbean Journal of Science withdrawing and re-baiting the hook each time. These “free 36: 162–162. lunches” emboldened the lizard to continue following the Krysko, K.L. and A.N. Hooper. 2006. Potential pollination of non-native coconut bait. We then led the lizard to the edge of the glue trap and palms, Cocos nucifera (Arecales: Arecaceae), by non-native Madagascar Giant dangled the cricket just above the ground at the side of the Day Geckos, Phelsuma madagascariensis grandis (Sauria: Gekkonidae), in the Florida Keys. Gekko 5(1): 33–38. glue trap farthest from the lizard’s perch. Doing this forces the Thawley, C.J. and J.T. Stroud. 2017. Geographic distribution: Phelsuma grandis lizard to attempt to traverse the glue trap in order to capture (Madagascan Day Gecko). Herpetological Review 48: 812–812. 115.
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