Ecological Archives E088-021-A1

Lígia Pizzatto, Selma M. Almeida-Santos, and Richard Shine. 2007. Life-history adaptations to arboreality in snakes. Ecology 88:359–366.

Appendix A. A table showing mean adult body sizes, numbers of ventral and subcaudal scales, and microhabitat use in boid and pythonid snakes.

TABLE A1. Mean adult body sizes, numbers of ventral and subcaudal scales, and microhabitat use in boid and pythonid snakes. In each case, mean values are followed by standard deviations, ranges, and sample sizes. Numbers in parentheses in the microhabitat column represent the proportion of snakes of each taxon found in arboreal situations. SVL = snout-vent length. Sample sizes refer to the number of preserved specimens examined for each taxon.

Species

Mean SVL ± SD (mm)

Scalation

Microhabitat

       

Boids

     

Candoia carinata

642.6 ± 225.7 (357 – 1324, n = 143)

Ventrals: 160–200

Subcaudals: 38–56

Terrestrial

(0)

Candoia aspera

556.6 ± 151.4 (335 – 950, n = 68)

Ventrals: 131–146

Subcaudals: 15–21

Terrestrial

(0.5)

Candoia bibroni

1028.3 ± 315.0 (470 – 1800, n = 57)

Ventrals: 210–252

Subcaudals: 50–62

Arboreal

(1.0)

Boa constrictor amarali

1451.6 ± 184.8 (1060 – 2130, n = 117)

Ventrals: 226–263

Subcaudals: 43–52

Terrestrial

(0.375)

Boa constrictor constrictor

1945.9 ± 506.7 (1162 – 3713, n = 111)

Ventrals: 250–284

Subcaudals: 49–62

Terrestrial

(0.300)

Corallus caninus

1284.6 ± 241.7 (835 – 1710, n = 36)

Ventrals: 188–219

Subcaudals: 64–79

Arboreal

(1.0)

Corallus hortulanus

1309.6 ± 169.5 (802 – 1887, n = 218)

Ventrals: 258–297

Subcaudals: 105–137

Arboreal

(0.960)

Corallus cropanii

1278.7 ± 189.8 (1080 – 1510, n = 4)

Ventrals: 179–200

Subcaudals: 51–53

Terrestrial

(0.333)

Epicrates c. cenchria

1484.8 ± 174.5 (946 – 1838, n = 83)

Ventrals: 246–279

Subcaudals: 45–68

Terrestrial

(0.200)

Epicrates c. assisi

1212 ± 129.7 (988 – 1480, n = 43)

Ventrals: 240–260

Subcaudals: 35–62

Terrestrial

(0)

Epicrates c. crassus

1097 ± 106.5 (876 – 1371, n = 62)

Ventrals: 214–247

Subcaudals: 33–52

Terrestrial

(0)

Sanzinia madagascariensis

1394 ± 281.4 (1100 –  1910, n = 18)

Ventrals: 199–232

Subcaudals: 35–46

Arboreal

(1.0)

Eunectes murinus

2551.9 ± 748.8 (1335 – 4480, n = 39)

Ventrals: 239–266

Subcaudals: 55–78

Aquatic

(0)

Eunectes notaeus

1928.7 ± 308.2 (1515 – 2500, n = 10)

Ventrals: 213–237

Subcaudals: 44–61

Aquatic

(0)

Eunectes deschauenseei

1598 ± 263.3 (1200 – 2313, n = 25)

Ventrals: 214–236

Subcaudals: 49–62

Aquatic

(0)

       

Pythonids

     

Aspidites melanocephalus

1615.9 ± 320.4 (950 – 2550, n = 44)

Ventrals: 315–359

Subcaudals: 60–70

Terrestrial

(0)

Aspidites ramsayi

1519.7 ± 375.3 (972 – 2280, n = 43)

Ventrals: 273–308

Subcaudals: 45–55

Terrestrial

(0)

Antaresia childreni

715.2 ± 134.9 (390-990, n = 90)

Ventrals: 251–300

Subcaudals: 38–57

Terrestrial

(0)

Antaresia stimsoni

887.4 ± 183.5 (552 – 1270, n = 51)

Ventrals: 243–302

Subcaudals: 38–53

Terrestrial

(0)

Antaresia maculosa

783.3 ± 127.1 (575 – 1035, n = 23)

Ventrals: 246–287

Subcaudals: 37–48

Terrestrial

(0)

Bothrochilus boa

884.3 ± 198.0 (660 – 1310, n = 14),

Ventrals: 245–267

Subcaudals: 47–52

Terrestrial

(0)

Leiopython albertisi

1419.4 ± 307.8 (1115 – 2112, n = 11)

Ventrals: 260–290

Subcaudals: 60–80

Terrestrial

(0)

Liasis fuscus

1362.2 ± 222.4 (953 – 2200, n = 61)

Ventrals: 271–286

Subcaudals: 72–89

Terrestrial

(0)

L. olivaceus

1942.7 ± 392.1 (1100 – 2600, n = 59)

Ventrals: 321–411

Subcaudals: 96–119

Terrestrial

(0)

Morelia kinghorni

1929.1 ± 537.5 (1290 – 3450, n = 32)

Ventrals: 270–348

Subcaudals: 80–120

Arboreal

(0)

M. viridis

1144.3 ± 231.4 (840 – 1600, n = 17)

Ventrals: 255–260

Subcaudals: 90–110

Arboreal

(0)

M. spilota spilota

1606.4 ± 315.6 (1000-2220, n = 54)

Ventrals: 261–280

Subcaudals: 71–85

Terrestrial

(0.160)

M. spilota variegata

1495.8 ± 400.6 (720 –  2450, n = 90)

Ventrals: 259–294

Subcaudals: 81–91

Arboreal

(0.610)

† Data on SVL refer to one female and three males. Ventral and subcaudal scale counts were obtained from published literature: Stull 1932, Hoge 1953, Boulenger 1961, Barker and Barker 1994, Cogger 2000, Dirksen 2002, Henderson 2002, Passos 2003, Vences and Glaw 2003.

LITERATURE CITED

Barker, D. G., and T. M. Barker. 1994. Pythons of the world. Volume I. Australia. Advanced Vivarium Systems, Mission Viejo, California, USA.

Boulenger, G. A. 1961. Catalogue of the snakes of the British Museum (Natural History). Volume I. British Museum of Natural History, London, UK.

Cogger, H. G. 2000. Reptiles and amphibians of Australia. Reed New Holland, Sydney, Australia.

Dirksen, L. 2002. Anakondas. Monographische revision der gattung Eunectes (Wagler, 1830). Natur und Tier-Verlag, Münster.

Henderson, R. W. 2002. Neotropical Treeboas. Natural history of the Corallus hortulanus Complex. Krieger Publishing Company, Malabar, Florida, USA.

Hoge, A. R. 1953. A new genus and species of Boinae from Brazil. Xenoboa cropanii, gen. nov., sp. nov. Memórias dos Instituto Butanatan 25:27–34.

Passos, P. G. H. 2003. Sistemática do complexo E. cenchria (Linnaeus, 1978) com aproximações sobre filogenia de Epicrates Wagler, 1830 (Serpentes: Boidae). MSc thesis. Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.

Stull, O. 1932. Five new subspecies of the family Boidae. Occasional Papers of the Boston Society of Natural History 8:25–30.

Vences, M., and F. Glaw. 2003. Phylogeography, systematics and conservation status of boid snakes from Madagascar (Sanzina and Acrantophis). Salamandra 39:181–206.



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