SRCosmos:

Order of appearence	Full citation	SRCosmos Link
1	Araujo AFB, 1987, Comportamento alimentar dos lagartos: o caso dos Tropidurus do grupo Torquatus da Serra de Carajas, Para (Sauria: Iguanidae). Encont. An. Etol. V, 203-234.
2	Araujo AFB, 1991, Structure of a white sand dune lizard community of coastal Brazil. Rev. Bras. Biol., 51: 857-865.
3	Avila-Pires TCS, 1995, Lizards of Brazilian Amazonia (Reptilia: Squamata). Zoo. Verhand., 299: 3-706.
4	Colli GR, Araujo AFB, Silveira R, Roma F, 1992, Niche partitioning and morphology of two syntopic Tropidurus (Sauria: Tropiduridae) in Mato Grosso, Brazil. Journ. Herpet., 26: 66-69.
5	Colli GR, Bastos RP, Araujo AFB, 2002, The character and dynamics of the cerrado herpetofauna, pp. 223-241. In: P.S. Oliveira & R. J. Marquis (eds.), The cerrados of Brazil: ecology and natural history of a neotropical savanna. Columbia University Press, New York.
6	Eiten G, 1978, Delimitation of the Cerrado concept. Veget., 36: 169-178.
7	Frost DR, 1992, Phylogenetic analysis and taxonomy of the Tropidurus group of lizards (Iguania: Tropiduridae). Am. Mus. Novit., 3033: 1-68.
8	Frost DR, Rodrigues MT, Grant T, Titus TA, 2001, Phylogenetics of the lizard genus Tropidurus (Squamata: Tropiduridae: Tropidurinae): direct optimization, descritive efficiency, and sensitivity analysis of congruence between molecular data and morphology. Mol. Phylog. Evol., 21: 352-371.
9	Harvey MB, Gutberlet RL, 2000, A phylogenetic analysis of the tropidurine lizards (Squamata: Tropiduridae), including new characteres of squamation and epidermal microstructure. Zoo. Journ. Lin. Soc., 128: 189-233.
10	Huey RB, Pianka ER, 1981, Ecological consequences of foraging mode. Ecol., 62: 991-999.
11	Jolicoeur P, 1963, The multivariate generalization of the allometry equation. Biom., 19: 497-499.
12	Kohlsdorf T, Garland-Junior T, Navas CA, 2001, Limb and tail lengths in relation to substrate usage in Tropidurus lizards. Journ. Morph., 248: 151-164.
13	Losos JB, 1990, Ecomorphology, performace capability, and scaling of west indian Anolis lizards: an evolutionary analysis. Ecol. Monogr., 60: 369-388.
14	Milles DB, 1994, Covariation between morphology and locomotory performance in sceloporine lizards, pp. 207-235. In: L. J.Vitt & E. R. Pianka, Lizard Ecology. Historical and experimental perspectives. Princeton University Press, New Jersey.
15	Moermond TC, 1979, Habitat constraints on the behavior, morphology, and community structure of Anolis lizards. Ecol., 60: 152-164.
16	Pianka ER, 1969, Habitat specificity, speciation, and species density in Australian desert lizards. Ecol., 50: 498-502.
17	Pianka ER, 1973, The structure of lizard communities. An. Rev. Ecol. Syst., 4: 53-74.
18	Pianka ER, Parker WS, 1972, Ecology of the iguanid Callisaurus draconoides. Copeia, 1972: 493-508.
19	Pounds JA, 1988, Ecomorphology, locomotion, and microhabitat structure: patterns in a tropical mainland Anolis community. Ecol. Monogr., 58: 299-320.
20	Ricklefs RE, Cochran D, Pianka ER, 1981, A morphological analysis of the structure of communities of lizards in desert habitats. Ecol., 62: 1474-1483.
21	Rocha CFD, Bergallo HG, 1990, Thermal biology and flight distance of Tropidurus oreadicus (Sauria, Iguanidae) in an area of Amazonian Brazil. Ethol. Ecol. & Evol., 2: 263-268.
22	Rodrigues MT, 1987, Sistematica, ecologia e zoogeografia dos Tropidurus do grupo torquatus ao sul do Rio Amazonas (Sauridae, Iguanidae). Arq. Zoo., 31: 105-230.
23	Simpson EH, 1949, Measurement of diversity. Nature, 163: 688.
24	Somers KM, 1986, Multivariate allometry and removal of size with principal components analysis. Syst. Zoo., 35: 359-368.
25	Tabachnick BG, Fidell LS, 1996, Using multivariate statistics. HarperCollins Publishers Inc., New York.
26	Van-Sluys M, 1992, Aspectos da ecologia do lagarto Tropidurus itambere (Tropiduridae), em uma area do sudeste do Brasil. Rev. Bras. Bio., 52: 181-185.
27	Van-Sluys M, 1993, Food habits of the lizard Tropidurus itambere (Tropiduridae) in Southeastern Brazil. Journ. Herp., 27: 347-351.
28	Van-Sluys M, 1995, Seasonal variation in prey choice by the lizard Tropidurus itambere (Tropiduridae) in southeastern Brazil. Cienc. Cult., 47: 61-65.
29	Vitt LJ, 1991, An introduction to the ecology of cerrado lizards. Journ. Herp., 25: 79-90.
30	Vitt LJ, 1993, Ecology of isolated open-formation Tropidurus (Reptilia: Tropiduridae) in Amazonian lowland rain forest. Can. Journ. Zoo., 71: 2370-2390.
31	Vitt LJ, Caldwell JP, 1993, Ecological observations on Cerrado lizards in Rondonia, Brazil. Journ. Herp., 27: 46-52.
32	Vitt LJ, Carvalho CM, 1995, Niche partitioning in a tropical wet season: lizards in the Lavrado area of northern Brazil. Copeia, 1995: 305-329.
33	Vitt LS, Goldberg SR, 1983, Reproductive ecology of two tropical iguanid lizards: Tropidurus torquatus and Platynotus semitaeniatus. Copeia, 1983: 131-141.
34	Vitt LJ, Caldwell JP, Zani PA, Titus TA, 1997, The role of habitat shift in the evolution of lizard morphology: evidence from tropical Tropidurus. Proceedings National Academic Science USA, 94: 3828-3832.
35	Vitt LJ, Souza RA, Sartorius SS, Avila-Pires TCS, Esposito MC, 2000, Comparative ecology of sympatric Gonatodes (Squamata: Gekkonidae) in the western Amazon of Brazil. Copeia, 2000: 83-95.
36	Vitt LJ, Zani PA, Caldwell JP, 1996, Behavioural ecology of Tropidurus hispidus on isolated rock outcrops in Amazonia. Journ. Trop. Ecol., 12: 81-101.
37	Zar JH, 1998, Biostatistical analysis (4th ed.), Prentice-Hall, Inc., Englewood Cliffs, New Jersey.

Keywords	resource partitioning, lizard, saxicolous, Cerrado, Tropidurus itambere, Tropidurus oreadicus
Abstract	We studied the ecology of Tropidurus itambere and T. oreadicus that occur syntopically in rocky habitats of Cerrado vegetation in central Brazil during the dry season (April to September 2000). The two species are ecologically similar, but somewhat differentiated in vertical microhabitat use. The two species preferred rocky surface microhabitat. Both species demonstrated a unimodal activity pattern, with a peak between 10 and 15 h. Their diets were similar in composition and prey size. The most frequent item used by both species was ants, whereas the most important preys volumetrically were termites and ants. Small morphological differences observed between the two Tropidurus species could explain minor microhabitat divergence: T. itambere is slightly smaller, heavier, and more robust, and uses lower perches. T. oreadicus is larger, lankier, with longer extremities (tail, fore- and hindlegs), and uses a larger vertical microhabitat range. These ecological differences are slight, when compared with those observed between sympatric species of Tropidurus in spatially more heterogeneous landscapes. Considering the slight ecomorphological divergence between the two Tropidurus species and their high abundance in outcrops, we suggest that interspecific territoriality is the mechanism of coexistence
Full text	Full Text in PDF (281 KB)
Source link
Included Refrences	37 References (List...)
Cited by other Articles	0 Citations (List...)

Name	Affiliation	Home page	e-mail	Total pubs
Araujo AFB	Departamento de Biologia Animal, Universidade Federal Rural do Rio de Janeiro, CEP 23890-000, Seropedica, RJ, Brazil			4
Faria RG	Departamento de Zoologia, Instituto de Biologia, Universidade de Brasilia, CEP 70910-900, Brasilia, DF, Brazil		renatogf@unb.br	1