{"elementGlobalId":100076,"circumscripConfidence":{"id":1,"circumscripConfidenceDescEn":"1 - Strong","circumscripConfidenceDescEs":"1 - Fuerte","circumscripConfidenceDescFr":"1 – Forte"},"classificationLevel":{"id":7,"classificationLevelNameEn":"Species","classificationLevelNameEs":"Especies","classificationLevelNameFr":"Espèce"},"classificationStatus":{"id":1,"classificationStatusDescEn":"Standard","classificationStatusDescEs":"Estándar","classificationStatusDescFr":"Standard"},"iucn":{"id":11,"iucnDescEn":"Least concern","iucnDescEs":"Menos preocupante","iucnDescFr":"Moins préoccupante","iucnCode":"LC"},"nameCategory":{"id":1,"nameCategoryDescEn":"Vertebrate Animal","nameCategoryDescEs":"Animal vertebrado","nameCategoryDescFr":"Animal vertébré","nameTypeCd":"A","nameTypeDesc":"Zoological"},"rankMethodUsed":null,"formattedScientificName":"<i>Senticolis triaspis</i>","scientificName":"Senticolis triaspis","scientificNameAuthor":"(Cope, 1866)","primaryCommonName":"Green Ratsnake","relatedItisNames":"<i>Senticolis triaspis</i> (Cope, 1866) (TSN 209458)","uniqueId":"ELEMENT_GLOBAL.2.100076","elcode":"ARADB44010","conceptRefFullCitation":"Price, R. M. 1991. <i>Senticolis</i>, <i>S. triaspis</i>. Society for the Study of Amphibians and Reptiles 525.1-525.4.","conceptName":"<i>Senticolis triaspis</i>","taxonomicComments":"<i>Senticolis </i>is more closely related to the New World tribe Lampropeltini than it is to the Old World genus <i>Elaphe </i>(Keogh 1996, Utiger et al. 2002, Burbrink and Lawson 2007, and Pyron and Burbrink 2009) (Crother 2017).","roundedGRank":"G5","conservationStatusFactorsEditionDate":"2005-12-14","conservationStatusFactorsEditionAuthors":"Hammerson, G.","primaryCommonNameLanguage":"EN","recordType":"SPECIES","elementNationals":[{"elementNationalId":162230,"classifConfidence":null,"nation":{"id":225,"nameEn":"United States","nameEs":"Estados Unidos","nameFr":"États-Unis","isoCode":"US","region":"United States"},"roundedNRank":"N3","elementSubnationals":[{"elementSubnationalId":324350,"subnation":{"id":39,"nameEn":"New Mexico","nameEs":"Nuevo México","nameFr":"Nouveau-Mexique","subnationCode":"NM","dnationId":225},"roundedSRank":"S1","dataSensitive":{"id":1,"dataSensitiveDescEn":"Yes","dataSensitiveDescEs":null,"dataSensitiveDescFr":null,"dataSensitiveCode":"Y"},"dataSensitiveCategory":null,"srank":"S1","speciesSubnational":{"elementSubnationalId":324350,"hybrid":false,"exotic":false,"native":true}},{"elementSubnationalId":268879,"subnation":{"id":6,"nameEn":"Arizona","nameEs":"Arizona","nameFr":"Arizona","subnationCode":"AZ","dnationId":225},"roundedSRank":"S2","dataSensitive":{"id":1,"dataSensitiveDescEn":"Yes","dataSensitiveDescEs":null,"dataSensitiveDescFr":null,"dataSensitiveCode":"Y"},"dataSensitiveCategory":null,"srank":"S2","speciesSubnational":{"elementSubnationalId":268879,"hybrid":false,"exotic":false,"native":true}}],"nrankReviewYear":1996,"nrank":"N3","speciesNational":{"elementNationalId":162230,"exotic":false,"native":true}}],"lastModified":"2026-10-02T21:32:32.425001Z","lastPublished":"2026-10-02T21:32:08.892226Z","promotionalDescription":null,"conceptLineageSummary":null,"nsxUrl":"/Taxon/ELEMENT_GLOBAL.2.100076/Senticolis_triaspis","grankAdjustmentReasons":null,"grankChangeDate":"1996-10-30","grankReviewDate":"2005-12-14","grankReasons":null,"grank":"G5","rankInfo":{"elementGlobalId":100076,"aooPercentGood":null,"enviromentalSpecificity":null,"intrinsicVulnerability":{"id":4,"intrinsicVulnerabilityDescEn":"Moderately vulnerable","intrinsicVulnerabilityDescEs":"Moderadamente vulnerable","intrinsicVulnerabilityDescFr":"Moyennement vulnérable"},"longTermTrend":{"id":38,"longTermTrendDescEn":"Decline of <30% to increase of 25%","longTermTrendDescEs":"Disminución de <30% a aumento de 25%.","longTermTrendDescFr":"Diminution de <30 % à augmentation de 25 %"},"numberEos":{"id":11,"numberEosDescEn":"21 - 300","numberEosDescEs":"De 21 a 300","numberEosDescFr":"De 21 à 300"},"numberGoodEos":null,"numberProtEos":{"id":11,"numberProtEosDescEn":"Several to many (4-40) occurrences appropriately protected and managed","numberProtEosDescEs":"De unas pocas a varias ocurrencias (4 a 40) protegidas y debidamente controladas","numberProtEosDescFr":"De quelques à plusieurs occurrences (de 4 à 40) protégées et contrôlées convenablement"},"popSize":{"id":32,"popSizeDescEn":"10,000 - 1,000,000 individuals","popSizeDescEs":"De 10.000 a 1.000.000 de individuos","popSizeDescFr":"De 10 000 à 1 000 000 individus"},"rangeExtent":{"id":34,"rangeExtentDescEn":"200,000 to >2,500,000 square km (about 80,000 to >1,000,000 square miles)","rangeExtentDescEs":"200.000 a >2.500.000 kilómetros cuadrados (aproximadamente 80.000 a >1.000.000 millas cuadradas)","rangeExtentDescFr":"De 200 000 à >2 500 000 km carrés (de 80 000 à >1 000 000 miles carrés approximativement)"},"shortTermTrend":{"id":40,"shortTermTrendDescEn":"Relatively Stable (<=10% change)","shortTermTrendDescEs":"Relativamente estable (variación = <10%)","shortTermTrendDescFr":"Relativement stable (variation = <10 %)"},"threatImpactAssigned":{"id":10,"threatImpactAssignedDescEn":"Low","threatImpactAssignedDescEs":"Bajo","threatImpactAssignedDescFr":"Faible"},"rangeExtentComments":"The range extends from southeastern Arizona (Baboquivari, Pajarito, Santa Rita, Empire, Whetstone, and Chiricahua mountains) and southwestern New Mexico (Peloncillo and Guadalupe mountains; possibly also the Animas and Mule mountains) south through northwestern, northeastern, and southern Mexico to Costa Rica, from near sea level to over 2,200 meters (Price 1991).","areaOfOccupancy":null,"areaOfOccupancyComments":null,"numberEosComments":"This species is represented by many occurrences or subpopulations. Price (1991) mapped roughly 50 collection sites.","popSizeComments":"Total adult population size is unknown but undoubtedly exceeds 10,000. These snakes are secretive but not uncommon in the Chiricahuhua Mountains in Arizona (Degenhardt et al. 1996).","viabilityComments":null,"threatImpactComments":"No major threats are known.","shortTermTrendComments":"Extent of occurrence, area of occupancy, number of subpopulations, and population size probably are relatively stable.","longTermTrendComments":null,"inventoryNeeds":null,"numberProtEosComments":"At least several occurrences are in protected areas.","protectionNeeds":null,"otherConsiderations":null,"intrinsicVulnerabilityComments":null,"enviromentalSpecificityComments":null},"animalCharacteristics":{"elementGlobalId":100076,"majorHabitat":{"id":3,"majorHabitatDescEn":"Terrestrial","majorHabitatDescEs":"Terrestre","majorHabitatDescFr":"Terrestre"},"nonMigrant":true,"localMigrant":false,"longDistanceMigrant":false,"mobilityMigrationComments":null,"foodHabitsComments":"Eats birds, small mammals, lizards; mainly rodents.","animalPhenologyComments":"Inactive in cold temperatures and extreme heat.","colonialBreeder":false,"length":127,"width":null,"weight":null,"animalPhenologies":[{"animalCagPhenologyId":100595,"animalPhenology":{"id":1,"animalPhenologyDescEn":"Hibernates/aestivates","animalPhenologyDescEs":"Hibernación/Estivación","animalPhenologyDescFr":"Hiberne/estive","displayOrder":1},"adult":true,"immature":true},{"animalCagPhenologyId":100596,"animalPhenology":{"id":2,"animalPhenologyDescEn":"Circadian","animalPhenologyDescEs":"Circadiano","animalPhenologyDescFr":"Circadien","displayOrder":2},"adult":true,"immature":true}],"animalFoodHabits":[{"animalCagFoodHabitsId":101237,"foodHabits":{"id":1,"foodHabitsDescEn":"Carnivore","foodHabitsDescEs":"Carnívoro","foodHabitsDescFr":"Carnivore","displayOrder":1},"adult":true,"immature":true}]},"occurrenceDelineations":[{"eoSpecsDetailId":1142,"locationUseClass":{"id":1,"locationUseClassDescEn":"Not applicable","locationUseClassDescEs":"No se aplica","locationUseClassDescFr":"Sans objet","displayOrder":1},"eoSpecGroupName":"Medium And Large Colubrid Snakes","subtypes":null,"inferredExtentDistance":0.5,"inferredExtentNotes":null,"minimumEoCriteria":"Occurrences are based on evidence of historical presence, or current and likely recurring presence, at a given location. Such evidence minimally includes collection or reliable observation and documentation of one or more individuals (including eggs) in or near appropriate habitat where the species is presumed to be established and  breeding.","mappingGuidance":null,"separationBarriers":"Busy highway or highway with obstructions such that snakes rarely if ever cross successfully; major river, lake, pond, or deep marsh (this barrier pertains only to upland species and does not apply to aquatic or wetland snakes); densely urbanized area dominated by buildings and pavement.","separationDistanceUnsuitableHabitatat":1.0,"separationDistanceSuitableHabitatat":10.0,"altSeparationProcedure":null,"separationJustification":"Available information on movements of colubrid snakes is limited to a small minority of species. These data indicate that nearly all species have home ranges smaller or much smaller than 25 ha (e.g., less than 3 ha, <i>Pituophis catenifer</i> in California, Rodriguez-Robles 2003), with some up to about 75 ha (<i>Heterodon platirhinos</i>, average 50 ha, Plummer and Mills 2000), and the largest up to 225 ha in the biggest colubrids (<i>Drymarchon</i>, summer mean 50-100 ha, USFWS 1998). <br><br>Radiotelemetry data for <i>Pantherophis </i>indicate that residents of hibernacula that are 1-2 km apart (with suitable intervening habitat) probably interbreed (Prior et al. 1997, Blouin-Demers and Weatherhead 2002). However, \"evidence of genetic structure even over short distances (e.g., 2-20 km) implies that gene flow among rat snake populations can be easily disrupted\" (Prior et al. 1997). Loughheed et al. (1999) found evidence of substantial genetic exchange among local hibernacula (< 6 km apart), but gene flow over distances of 10s of km appears to be substantially less. Based on extensive radio-tracking data, Blouin-Demers and Weatherhead (2002) found that home range size of <i>Pantherophis </i>averaged 18.5 ha and ranged up to 93 ha; based on the most mobile individuals, <i>Pantherophis </i>from hibernacula up to 8 km apart can come together for mating. <i>Pantherophis </i>and probably other colubrids exhibit high fidelity to hibernacula and shift even to nearby sites only rarely (Prior et al. 2001). <br><br>Many of the several studies that report small home ranges for colubrids did not employ methods (e.g., radio telemetry) suitable for detecting full annual or multi-annual home range size, dispersal, or other long-distance movements, so these may have yielded underestimates of home ranges or activity areas.  <br><br>At least some colubrids, including medium-sized species such as garter snakes, not uncommonly move between areas up to a few kilometers apart, and several species make extensive movements of up to several kilometers, so separation distances of 1-2 km for suitable habitat are too small for medium-sized and large colubrids.<br><br>A separation distance of 10 km for suitable habitat was selected as most appropriate for snakes assigned to this Specs Group because it seems generally unlikely that two locations separated by less than 10 km of suitable habitat would represent distinct occurrences.<br><br>For the purposes of these occurrence specifications, upland habitat is regarded as unsuitable habitat for aquatic and wetland snakes. For upland snakes, shallow or patchy wetlands are treated as unsuitable habitat whereas large deepwater habitats (subjective determination) are barriers.","versionDate":"2013-02-12","versionAuthor":"Hammerson, G.","versionNotes":"Separation distance for suitable habitat was changed from 5 km to 10 km based on comments from Dale Jackson (12 Feb 2013).","lastModified":"2020-04-30T02:04:05.987846Z"}],"plantCharacteristics":null,"elementManagement":{"elementGlobalId":100076,"eoManagementGroupName":null,"stewardshipOverview":null,"impacts":null,"restorationPotential":null,"siteConservationPlansConsidered":null,"managementMethods":null,"monitoringMethods":null,"managementProgramContacts":null,"monitoringProgramContacts":null,"managementResearchPrograms":null,"managementResearchNeeds":null,"biologicalResearchNeeds":null,"additionalTopics":null},"occurrenceViabilities":[{"eoRankSpecsDetailId":101670,"eoRankSpecsGroupName":null,"locationUseClass":{"id":1,"locationUseClassDescEn":"Not applicable","locationUseClassDescEs":"No se aplica","locationUseClassDescFr":"Sans objet","displayOrder":1},"excellentViability":null,"goodViability":null,"fairViability":null,"poorViability":null,"viabilityJustification":"Use the Generic Guidelines for the Application of Occurrence Ranks (2008).<br>The Key for Ranking Species Occurrences Using the Generic Approach provides a step-wise process for implementing this method.","versionDate":null,"versionAuthor":null,"versionNotes":null,"lastModified":"2020-05-14T02:14:47.389878Z"}],"references":[{"id":137372,"citation":"Behler, J. L., and F. W. King. 1979. The Audubon Society field guide to North American reptiles and amphibians. Alfred A. Knopf, New York. 719 pp.","shortCitationAuthor":"Behler and King","shortCitationYear":1979,"referenceCode":"B79BEH01NAUS","lastModified":"2020-02-25T14:38:24.173666Z"},{"id":645860,"citation":"Burbrink, F. T., and R. Lawson. 2007. How and when did Old World rat snakes disperse into the New World? Molecular Phylogenetics and Evolution 43:173-189.","shortCitationAuthor":"Burbrink and Lawson","shortCitationYear":2007,"referenceCode":"A07BUR02NAUS","lastModified":"2020-02-25T18:18:07.684289Z"},{"id":137880,"citation":"Collins, J. T. 1990. Standard common and current scientific names for North American amphibians and reptiles. 3rd ed. Society for the Study of Amphibians and Reptiles. Herpetological Circular No. 19. 41 pp.","shortCitationAuthor":"Collins","shortCitationYear":1990,"referenceCode":"B90COL01NAUS","lastModified":"2020-02-25T14:38:15.579798Z"},{"id":621810,"citation":"Crother, B. I. (editor). 2008. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. Sixth edition. Society for the Study of Amphibians and Reptiles Herpetological Circular 37:1-84. Online with updates at: http://www.ssarherps.org/pages/comm_names/Index.php","shortCitationAuthor":"Crother","shortCitationYear":2008,"referenceCode":"B08CRO01NAUS","lastModified":"2020-02-25T14:38:20.142383Z"},{"id":722484,"citation":"Crother, B. I. (editor). 2012. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. 7th edition. SSAR Herpetological Circular 39:1-92.","shortCitationAuthor":"Crother","shortCitationYear":2012,"referenceCode":"B12CRO01NAUS","lastModified":"2020-02-25T18:11:51.08501Z"},{"id":943912,"citation":"Crother, B. I. (editor). 2017. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. 8th edition. SSAR Herpetological Circular 43:1-104. [Updates in SSAR North American Species Names Database at: https://ssarherps.org/cndb]","shortCitationAuthor":"Crother","shortCitationYear":2017,"referenceCode":"B17CRO01EHUS","lastModified":"2020-02-25T18:11:53.413199Z"},{"id":133903,"citation":"Dowling, H. G., and I. Fries. 1987. A taxonomic study of the ratsnakes. VIII. A proposed new genus for ELAPHE TRIASPIS (Cope). Herpetologica 43:200-207.","shortCitationAuthor":"Dowling and Fries","shortCitationYear":1987,"referenceCode":"A87DOW01NAUS","lastModified":"2020-02-25T18:11:55.772407Z"},{"id":1067066,"citation":"Keogh, J. S. 1996. Evolution of the colubrid snake tribe Lampropeltini: a morphological perspective. Herpetologica 52(3):406-416.","shortCitationAuthor":"Keogh","shortCitationYear":1996,"referenceCode":"A96KEO01NAUS","lastModified":"2020-11-11T02:01:34.386349Z"},{"id":115741,"citation":"Lawson, R., and H. C. Dessauer. 1981. Electrophoretic evaluation of the colubrid genus ELAPHE Fitzinger. Isozyme Bull. 14:83.","shortCitationAuthor":"Lawson and Dessauer","shortCitationYear":1981,"referenceCode":"A81LAW01NAUS","lastModified":"2020-02-25T18:11:55.772407Z"},{"id":155226,"citation":"Price, R. M. 1991. <i>Senticolis</i>, <i>S. triaspis</i>. Society for the Study of Amphibians and Reptiles 525.1-525.4.","shortCitationAuthor":"Price","shortCitationYear":1991,"referenceCode":"B91PRI01NAUS","lastModified":"2020-11-11T02:01:34.386349Z"},{"id":645487,"citation":"Pyron,  R. A., and F. T. Burbrink. 2009. Neogene diversification and taxonomic stability in the snake tribe Lampropeltini (Serpentes: Colubridae). Molecular Phylogenetics and Evolution 52:524-529.","shortCitationAuthor":"Pyron and Burbrink","shortCitationYear":2009,"referenceCode":"A09PYR01NAUS","lastModified":"2020-02-25T18:12:09.428867Z"},{"id":144435,"citation":"Stebbins, R. C. 1985a. A field guide to western reptiles and amphibians. Second edition. Houghton Mifflin Company, Boston, Massachusetts. xiv + 336 pp.","shortCitationAuthor":"Stebbins","shortCitationYear":1985,"referenceCode":"B85STE01NAUS","lastModified":"2020-02-25T18:11:51.08501Z"},{"id":266629,"citation":"Stebbins, R. C. 2003. A field guide to western reptiles and amphibians. Third edition. Houghton Mifflin Company, Boston.","shortCitationAuthor":"Stebbins","shortCitationYear":2003,"referenceCode":"B03STE01NAUS","lastModified":"2020-02-25T18:11:51.08501Z"},{"id":157509,"citation":"Utiger, U., N. Helfenberger, B. SchC. Schmidt, M. Ruf, and V.  Ziswiler. 2002. Molecular systematics and phylogeny of Old and New World ratsnakes, <i>Elaphe</i> auct., and related genera (Reptilia, Squamata, Colubridae). Russian Journal of Herpetology 9(2):105-124.","shortCitationAuthor":"Utiger et al.","shortCitationYear":2002,"referenceCode":"A02UTI01NAUS","lastModified":"2020-02-25T18:15:08.165934Z"}],"otherCommonNames":[{"id":117624,"name":"Green Rat Snake","language":"EN"}],"speciesGlobal":{"elementGlobalId":100076,"cites":null,"cosewic":null,"fwsRegion":null,"genusSize":{"id":1,"genusSizeDescEn":"Monotypic genus","genusSizeDescEs":"Género monotípico","genusSizeDescFr":"Genre monotypique"},"jurisEndem":{"id":5,"jurisEndemDescEn":"occurs (regularly, as a native taxon) in multiple nations","jurisEndemDescEs":"Se encuentra en varias naciones (de manera regular, como un taxón nativo)","jurisEndemDescFr":"Se trouve dans plusieurs nations (de façon régulière, tel un taxon indigène)"},"nomenclaturallyEst":null,"usesa":null,"informalTaxonomy":{"informalTaxonomyId":7,"level1":"Animals","level2":"Vertebrates","level3":"Reptiles","level":3,"hasChildren":false,"parentId":2,"distributionStatus":"complete","displayOrder":1100},"parentSpecies":null,"infraspecies":false,"kingdom":"Animalia","phylum":"Craniata","taxclass":"Reptilia","taxorder":"Squamata","family":"Colubridae","genus":"Senticolis","americanFisheriesStatus":null,"americanFisheriesStatusDate":null,"saraStatus":null,"saraStatusDate":null,"cosewicDate":null,"interpretedCosewic":null,"cosewicComments":null,"usesaDate":null,"interpretedUsesa":null,"usesaComments":null,"completeDistribution":true,"synonyms":[{"id":101541,"synonym":"Elaphe triaspis","synonymAuthor":"(Cope)","formattedSynonym":"<i>Elaphe triaspis</i>"}],"infraspeciesList":[{"infraspeciesId":105512,"uniqueId":"ELEMENT_GLOBAL.2.105512","formattedScientificName":"<i>Senticolis triaspis intermedia</i>","scientificName":"Senticolis triaspis intermedia","primaryCommonName":"Northern Green Ratsnake","nsxUrl":"/Taxon/ELEMENT_GLOBAL.2.105512/Senticolis_triaspis_intermedia"}],"ebarId":null,"ebarCanadianScope":false,"ebarGlobalScope":false,"ebarKbaGroup":"Amphibians and Reptiles","caGeneralStatusId":null},"speciesCharacteristics":{"elementGlobalId":100076,"reproductionComments":"Little information available. Apparently lays 5 or more eggs in late summer or early fall (Behler and King 1979).","ecologyComments":null,"habitatComments":"Habitats include woodlands and chaparral of rocky mountain canyons near streams in the United States, montane mesophytic forests along the slopes of the Mexican highlands and in Central America, and xeric forest in western and southern Mexico (Price 1991, Stebbins 2003). Sometimes this snake can be found in agricultural areas or in buildings in towns. It is terrestrial and arboreal and uses rock crevices or underground burrows as shelter.","generalDescription":null,"diagnosticCharacteristics":null,"speciesMarineHabitats":[],"speciesTerrestrialHabitats":[{"cagTerrHabId":-104259,"terrestrialHabitat":{"id":4,"terrestrialHabitatDescEn":"Woodland - Hardwood","terrestrialHabitatDescEs":"Lote de madera - Madera dura","terrestrialHabitatDescFr":"Terrain boisé — Feuillu","displayOrder":6}},{"cagTerrHabId":-104260,"terrestrialHabitat":{"id":6,"terrestrialHabitatDescEn":"Woodland - Mixed","terrestrialHabitatDescEs":"Lote de madera - Mixto","terrestrialHabitatDescFr":"Terrain boisé — Mixte","displayOrder":8}},{"cagTerrHabId":-104258,"terrestrialHabitat":{"id":7,"terrestrialHabitatDescEn":"Shrubland/chaparral","terrestrialHabitatDescEs":"Matorral/Chaparral","terrestrialHabitatDescFr":"Fruticée/Chaparral","displayOrder":9}}],"speciesRiverineHabitats":[],"speciesPalustrineHabitats":[{"cagPalusHabId":-100881,"palustrineHabitat":{"id":6,"palustrineHabitatDescEn":"Riparian","palustrineHabitatDescEs":"Ribereño","palustrineHabitatDescFr":"Riverain","displayOrder":6}}],"speciesLacustrineHabitats":[],"speciesSubterraneanHabitats":[],"speciesEstuarineHabitats":[]},"primaryReference":{"id":943912,"citation":"Crother, B. I. (editor). 2017. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. 8th edition. SSAR Herpetological Circular 43:1-104. [Updates in SSAR North American Species Names Database at: https://ssarherps.org/cndb]","shortCitationAuthor":"Crother","shortCitationYear":2017,"referenceCode":"B17CRO01EHUS","lastModified":"2020-02-25T18:11:53.413199Z"},"predecessors":[],"elementGlobalThreatAssessments":[]}