Man and tegu lizards in Eastern Paraguay

Norman, David

doi:10.1016/0006-3207(87)90046-2

Cited by 19 publications

(17 citation statements)

References 3 publications

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“…More recently, programs for breeding these animals in captivity have been devised (Mercolli and Yanosky, 1994;Noriega, et al, 1996;Vega Parry and Manes, 2000;Noriega et al, 2002) that mitigate the pressure on natural populations while permitting their integral utilization (Gonza´lez et al, 1999;De Bargas et al, 2003;Basso et al, 2004). In addition to the skin, the meat of tegu as a source of food is of culinary interest, and its quality in this respect has been already reported in the literature (Donadı´o and Gallardo, 1984;Norman, 1987).…”

Section: Introductionmentioning

confidence: 91%

“…The southernmost species, Tupinambis merianae (formerly T. teguixin) and Tupinambis rufescens (Cei and Scolaro, 1982), have been traditionally used by aboriginal populations as a source of meat, fat and leather (Norman, 1987). In the last decades, an intensive exploitation has been initiated in Argentina since these species are an exportable source of leather for the design of luxury articles (Fitzgerald et al, 1991).…”

Section: Introductionmentioning

confidence: 97%

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Proximate composition, fatty acids and cholesterol content of meat cuts from tegu lizard Tupinambis merianae

Caldironi

Manes

2006

Journal of Food Composition and Analysis

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 97%

Proximate composition, fatty acids and cholesterol content of meat cuts from tegu lizard Tupinambis merianae

Caldironi

Manes

2006

Journal of Food Composition and Analysis

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“…Skins accumulate at tanneries where they are processed into finished leather or semitanned crusts. Essentially all tegu skins are exported to exotic leather markets in the Northern Hemisphere (Donadio and Gallardo 1984, Norman 1987, Fitzgerald et al 1991.…”

Section: Study Areamentioning

confidence: 99%

“…Tegu lizards from southern South America have been commercially exploited for their skins for .25 years, and they are among the most exploited reptiles in the world (Norman 1987, Fitzgerald 1989, Fitzgerald 1994a. During the 1980s, the world trade averaged 1.9 million tegu skins per year (Fig.…”

mentioning

confidence: 99%

Monitoring and Managing the Harvest of Tegu Lizards in Paraguay

Mieres¹,

Fitzgerald²

2006

Journal of Wildlife Management

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Despite the ongoing worldwide trade in reptiles, monitoring and management systems are only recently being developed for exploited lizards and snakes. We studied the tegu lizard (Tupinambis spp.) management and harvest monitoring program in Paraguay as a model for commercially exploited reptile management. Tegu lizards are among the most exploited reptiles in the world, with current quotas for Paraguay and Argentina of 300,000 and 1,000,000, respectively. We analyzed demographic data obtained from harvested skins of 2 species of tegu lizards at 2 trade levels (i.e., check stations and tanneries) over an 8‐year period. There was significant annual variation in the number, size, and sex ratios of harvested tegus. Sex ratios were consistently male biased. The proportion of small skins in the harvest decreased over time, indicating compliance with the policy to ban commerce of small tegu skins. However, disparities among check stations and tanneries indicated that small skins might have been restretched by middlemen as they were bartered up the trade chain. Our results support the conclusion that tegu lizards are withstanding the harvest in Paraguay. There was no chronological trend of increased take or decreasing size that would indicate overharvest, and there were no indicators of local population decline. However, data on hunter effort are lacking, and it is important to implement a system for quantifying hunter effort and incorporate those data into harvest models. This is the first study to report long‐term data on a harvested lizard. The approach we used here can serve as a model for monitoring and management of other commercially exploited terrestrial reptiles.

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“…About two million individuals of T. rufescens and T. teguixin are exploited annually for their skins (Hemley, 1984;Norman, 1987;Luxmoore et al, 1988;Fitzgerald et al, 1991), and the government of Argentina is developing management strategies in an attempt to insure the conservation and rational use of Tupinambis species. The size at maturity, clutch size, and breeding phenology are life history traits that have direct bearing on population growth (Dunham et al, 1988), and measurements of these traits need to be incorporated into management models.…”

mentioning

confidence: 98%