. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Conservation status of Canary reptiles 591. Fig. 3. Tin cans used as lizard traps to control popu- lations in cultivated fields. Photo C. Hernández- Rubio. Fig. 4. Conservation poster (40 x 30 cm), produced by the Union of Insular Councils. Its message means "El Hierro, where there still is Nature". In smaller text information on the status of Gallotia simonyi and its importance to science is given. importance of predation by the latter mentioned species i
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Conservation status of Canary reptiles 591. Fig. 3. Tin cans used as lizard traps to control popu- lations in cultivated fields. Photo C. Hernández- Rubio. Fig. 4. Conservation poster (40 x 30 cm), produced by the Union of Insular Councils. Its message means "El Hierro, where there still is Nature". In smaller text information on the status of Gallotia simonyi and its importance to science is given. importance of predation by the latter mentioned species is low on small reptiles but, as postulated by Machado (1985), could have been the reason for the de- cline of the large lizards. Fortunately, snakes have not been introduced into the archipelago. If this was the case, considerable impact on reptiles by competi- tion and/or predation would be expected. Competition between goats and rab- bits with herbivorous reptiles is of importance only at specific sites. Collecting and trade The extinction of Gallotia simonyi on its only confirmed locality (smaller Roque de Salmor) was due to overcollection, mainly for scientific purposes but also for commercial interest, and occurred in a period of only 42 years. This threat still exists for all species populations living in reduced zones, like islets or rocks offshore, and it is magnified by their taxonomical status. At present many col- lectors concentrate on endemics or any type of 'singularity' (v. Compte Sart 1977), as keeping reptiles as pets is an increasing hobby in Europe. Collecting for science or for other reasons is regulated by law, as discussed below, but not everybody applies for a license, and control on remote sites remains difficult. Trade in Canarian reptiles is nowadays strictly regulated and practically pro- hibited. The Department of Commerce (and in many cases, foreign authori- ties) will ask for an ICONA8) license, before giving the export/import permit. Some author
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