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IRCFREPTILES&HIBIANS•23(1):68–73•APR2016
Amphibian and Reptilian Inventories Augmented by Sampling at Heronries
IRCF REPTILES & AMPHIBIANS • VOL15, NO 4 • DEC 2008 189TABLE OF CONTENTS
T A B L E O F C O N T E N T S
F E A T U R E A R T I C L E S
Chasing Bullsnakes (Pituophis catenifer sayi) in Wisconsin: On the Road to Understanding the Ecology and Conservation of the Midwest’s Giant Serpent ...................... Joshua M. Kapfer 190
The Shared History of Treeboas (Corallus grenadensis) and Humans on Grenada: A Hypothetical Excursion ............................................................................................................................Robert W. Henderson 198
R E S E A R C H A R T I C L E S
The Texas Horned Lizard in Central and Western Texas ....................... Emily Henry, Jason Brewer, Krista Mougey, and Gad Perry 204 The Knight Anole (Anolis equestris) in Florida
.............................................Brian J. Camposano, Kenneth L. Krysko, Kevin M. Enge, Ellen M. Donlan, and Michael Granatosky 212
C O N S E R V A T I O N A L E R T
World’s Mammals in Crisis ............................................................................................................................................................. 220 More Than Mammals ...................................................................................................................................................................... 223 The “Dow Jones Index” of Biodiversity ........................................................................................................................................... 225
H U S B A N D R Y
Captive Care of the Central Netted Dragon ....................................................................................................... Shannon Plummer 226
P R O F I L E
Kraig Adler: A Lifetime Promoting Herpetology ................................................................................................ Michael L. Treglia 234
C O M M E N T A R Y
The Turtles Have Been Watching Me ........................................................................................................................ Eric Gangloff 238
B O O K R E V I E W
Threatened Amphibians of the World edited by S.N. Stuart, M. Hoffmann, J.S. Chanson, N.A. Cox, R. Berridge, P. Ramani, and B.E. Young .............................................................................................................. Robert Powell 243
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.Totat et velleseque audant mo estibus inveliquo velique rerchil erspienimus, quos accullabo. Ilibus aut dolor apicto invere pe dolum fugiatis maionsequat eumque moditia erere nonsedis ma sectiatur ma derrovitae voluptam, as quos accullabo.
Back Cover. Michael KernTotat et velleseque audant mo
estibus inveliquo velique rerchil erspienimus, quos accullabo. Ilibus
aut dolor apicto invere pe dolum fugiatis maionsequat eumque
moditia erere nonsedis ma sectia-tur ma derrovitae voluptam, as
IRC
F
REPTILES & AMPHIBIANSC O N S E R V AT I O N A N D N AT U R A L H I S T O R Y
ResultsWecollected24speciesofamphibiansandreptiles,including12speciesoffrogsandtoads,onespeciesofturtle,eightspe-ciesoflizards,andthreespeciesofsnakes(Table2).Twelvespecieswere in regurgitated foodboluses, four ofwhich(Microhyla ornata, Euphlyctis hexadactylus, Eutropis carinata, and Eutropis macularia)werefoundinfourormoreheronries,five(Polypedates maculatus, Lygosoma albopunctata, Lygosoma guentheri, Amphiesma stolata, and Xenochrophis piscator)inonlytwoheronries,andthree(Ramanella sp., Lissemys punc-tatahatchlings,andanadultEchis carinata)werelimitedtosmallareaswithinasingleheronry. Thegreatestnumbersofamphibianandreptilianspecieswererecoveredfromlargeandmedium-sizedsingle-speciesheronries atWaghai (20 species) andAhwa (19 species),respectively(Table1).AlthoughbothBharuchandWaghaiarelargeheronries,morespecieswererecoveredfromthesin-gle-speciesheronryatWhagaithanfromthemixed-speciesurbanheronryatBharuch(14).Theleastnumberofspecieswasrecoveredfromasmallsingle-speciesurbanheronryinRajkot(7).
DiscussionFoodhabits ofCattleEgrets are catholic (Hancock andKushlan1984), hence the great diversity of reptiles andamphibians in the diet (Figs. 2& 3).However, CattleEgretsareterrestrialandrarelyfeedinmarshyareas,reduc-ingthelikelihoodoffeedingonpurelyaquaticvertebrates.Consequently, small terrestrialvertebratesdominatetheirdiet.Ontheotherhand,cormorants,herons,andtheotheregrets feedprimarily on aquatic organisms (fishes, occa-sionalamphibiansandaquaticsnakesliketheBuff-stripedKeelback,Amphiesma stolata).With theexceptionof theIndianFlapshellTurtle(Lissemys punctata),fewsmallreptilesoccurinmarshy/shallowwaters.Thispresumablyaccountsfortherelativelylownumberofamphibianandreptilianspe-ciesrecoveredfromtheBharuchheronrywhencomparedtothatatWaghai(mixed-speciesheronryvs.single-speciesher-onry)despitebothbeinglargeinsize. Theamphibianandreptilianspeciesfoundinregurgi-tatedboluseswerecommonandwidelydistributed,exceptRamanellasp.,whichisrestrictedtotheDangForestsouthoftheNarmadaRiverinGujarat(Vyas1998,2008).Incon-
eredfromregurgitatedfoodbolusesofCattleEgretsandotherwaterbirdsareidentifiedatthatlevel. ConsumptionoftheFlap-shellTurtle(Lissemys punctata)bytheBlack-neckedStork(VyasandThaker2014)andtheLesserAdjutantStork(SivasubramanianandBhupathy1991)iswelldocumented.However,smallerbirdsliketheCattleEgretwerenotknowntofeedontheseturtles,sothisreportrepresentsanewrecord.Similarly,theconsumptionofaven-omousadultSaw-scaledViper(Echis carinata)byaCattleEgret is noteworthy. CattleEgretsusuallybreedduringthesouthwestmon-sooninnorthwesternIndia,withslightdeviationsdepend-ingonlocalconditions(AliandRipley1983;ParasharyaandNaik1990).Consideringasynchronousnestinginagivenheronry(ParasharyaandNaik1990)oranarea(BreedenandBreeden1982),heronriescouldbesampledrepeatedlyoverathree-monthmonsoonperiod.Repeatedsamplingwouldincreasethelikelihoodofencounteringamphibianandreptil-ianspeciesthatarelessabundantorappearonlyunderspe-cificconditions(rain,agriculturaloperations,etc.). Every surveymethod has advantages and disadvan-tages.Limitationsofthissupplementarymethodinclude:(1)Specifichabitatsandmicrohabitatsofamphibianandreptilianspeciescannotbedetermined;(2)chancesofacquiringintactspecimensarereduced;(3)samplingatheronriesispossibleonlyduringthebirds’breedingseasons;and(4)itisusefulonlyforsmallerandmostlyterrestrialspecies.Advantagesare:(1)Itconsumeslesstimeandmoney;(2)itdoesnotrequirepermissiontocollectspecimens(althoughpermissionmight
Literature CitedAli,S.andS.D.Ripley.1983.Handbook of the Birds of India and Pakistan together
with those of Bangladesh, Nepal, Bhutan and Sri Lanka. OxfordUniversityPress,Delhi,India.
Breeden,S.andB.Breeden.1982.Thedroughtof1979–1980attheKeoladeoGhanaSanctuary,Bharatpur,Rajasthan.Journal of the Bombay Natural History Society 79:1–37.
Chandra,S.K.2002.Hand Book. Indian Amphibians.ZoologicalSurveyofIndia,Kolkata.
Daniel,J.C.2002.The Book of Indian Reptiles and Amphibians.BombayNaturalHistorySociety/OxfordUniversityPress,Bombay.
Hanebrink,E.L.andG.Denton.1969.FeedingbehaviorandanalysisofregurgitatedfoodcollectedfromtheCattleEgretBubulcus ibisandtheLittleBlueHeronFlorida caerulea. Proceedings of the Arkansas Academy of Science 23:74–79.
Heyer,W.R.,M.A.Donnelly,R.W.McDiarmid,L.C.Hayek,andM.S.Foster.1994.Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. SmithsonianInstitutionPress,Washington,DC.
Mathew,K.L.,K.V.Pethani,andD.N.Yadav.1997. CattleEgretBubulcus ibisfeed-ingonbabyrats.Journal of the Bombay Natural History Society94:396–397.
Mukherjee,A.K.1972.Food-habitsofwater-birdsoftheSundarban,24-ParganasDistrict,WestBengal,India-III.Egrets.Journal of the Bombay Natural History Society68:691–716.
ParasharyaB.M.andR.M.Naik.1990.CiconiiformbirdsbreedinginBhavnagarCity,Gujarat: A study of their nesting and plea for conservation, pp.429–455.In:J.C.DanielandJ.S.Serrao(eds.),Conservation in Developing Countries: Problems and Prospectus.BombayNaturalHistory Society&OxfordUniversityPress,Bombay,India.
Seigfried,W.R.1971.ThefoodoftheCattleEgret.Journal of Applied Ecology8:447–468.
Sivasubramanian,C.andS.Bhupathy.1991.IndianFlapshellTurtleLissemys punc-tatainthefoodoftheAdjutantStorkLeptoptilos dubius. Journal of the Bombay Natural History Society 87:460.
Sodhi,N.S.1989.MonthlyvariationsindietofCattleEgretBubulcus ibis coroman-dus in and around Chandigarh. Journal of the Bombay Natural History Society 86:440–443.