1,724,951 research outputs found
Iguana production: hope or scope?
No full textIguanas offer an opportunity to establish a balanced production system in which economically viable conditions for the smallholders can be realised together with conservation of the natural forest and production of animal protein. The objectives of this study were to analyse existing iguana production systems in Nicaragua, Costa Rica and Panama as the basis for the design of an integrated iguana production system, taking into account various goals of stakeholders of the system, such as governments, Non-Governmental Organisations (NGOs) and farmers. The study yielded prospects and constraints for iguana farming and their implications for the system as a whole, the smallholders, the natural forest and the iguanas. To identify the problems and resolve conflicting goals among stakeholders, a soft system approach was used. Two stakeholder groups, Farmers and Organisations, discussed the production system. Organisations consisted of officials from government and NGOs. Discussions resulted in conceptual models, with which problems were identified and feasibility of possible solutions was explored. The soft systems approach proved to be adequate to identify prospects and constraints and their implications. The development of iguana production systems in Panama was compared at different phases of its development with the introduction of other new production systems of non-traditional species. The study revealed six key factors for introduction and development of new production systems. These factors could be distinguished by conditions that are needed to start a new production system: biology, support and market; and by limitations that can impede the development of new production systems: information, social conditions and legislation. Comparing key factors among production systems enabled us to explore the scope for development of production systems and their prospects and constraints. All key factors appeared negative for iguana production. In spite of the formation of farmers' associations and the exchange of information and experiences among farmers, advisors and other stakeholders, the diffusion of the production system will be constrained by lack of market opportunities for iguana products, lack of support and biological problems in iguana production
Iguana iguana
No full textIguana perchada en tronco de árbolFaunaSucreLas Flores, San Marcos, departamento de Sucre: 08°32'55,2'' N 075°12'02,4'' WBosque Seco TropicalIguana iguana (Linnaeus, 1758)AnimaliaChordataReptiliaSquamataIguanidaeIguanaiguanaSan Marco
Iguana
No full textFaunaTolimaReserva Natural El NemeBosque Seco TropicalIguanaIguana iguana LinnaeusAnimaliaChordataSauropsidaSquamataIguanidaeIguanaiguanaN/ACoell
Conservation of Iguanas (Iguana delicatissima and I. iguana) in the Lesser Antilles
Full text linkLesser Antillean iguana populations include at least two species, Iguana delicatissima and I. iguana, the latter of which may actually represent several species-level taxa. Iguana delicatissima is endemic to the region, as are at least two unique populations of I. iguana. Other populations in the region may have arrived naturally from South American by means of over-water dispersal, been introduced by Amerindians within the past 7,000 years, or been introduced within the past several decades as a by-product of the international pet trade. Although most extant populations of I. delicatissima are critically endangered, declines have been documented for several, and the gene pools of others have been contaminated as a consequence of hybridization with introduced populations of I. iguana, the species is considered only “vulnerable” according to IUCN Red List criteria. Iguana iguana is not listed. Protection is afforded both species under the auspices of CITES Appendix II, which lists all iguanids, but which includes provision for the harvest and export of I. iguana from many nations without consideration of the genetic distinctiveness of any population.
Most island populations are small, which renders them vulnerable to natural or human-mediated, stochastic or non-random events. In addition to hybridization, development-related habitat destruction and alteration, introduction of alien plants, predators, and competitors, and ongoing hunting pressure contribute to the precarious state of most populations. Conservation plans must be implemented and will have to include provisions for surveys and field research, establishment of protected areas within which livestock must be controlled, predator control strategies in some instances, extensive educational efforts, and, in at least the instance of the St. Lucian Iguana, a captive-breeding and headstarting program
Foraging strategies of the marine iguana, Amblyrhynchus cristatus
Full text linkTrillmich KGK, Trillmich F. Foraging strategies of the marine iguana, Amblyrhynchus cristatus. Behavioral Ecology and Sociobiology. 1986;18(4):259-266
Recommended from our members
[News Clip: Iguana]
No full textVideo footage from the WBAP-TV station in Fort Worth, Texas to accompany a news story about an iguana at Forest Park zoo in Fort Worth
Incomplete ovariosalpingectomy and subsequent malignant granulosa cell tumor in a female green iguana (Iguana iguana)
No full textCase Description-A 9-year-old spayed female green iguana (Iguana iguana) was evaluated because of a distended coelom and weight loss. History included a single episode of egg binding and subsequent bilateral ovariosalpingectomy.;Clinical Findings-Physical examination revealed a mass within the coelomic cavity. Ultrasonography revealed a large, irregular mass with hypoechoic regions and coelomic effusion. Clinicopathologic derangements included heterophilia, monocytosis, lymphopenia, basophilia, hypocholesterolemia, hypoproteinemia, and hypercalcemia. Results of cytologic evaluation of the mass were suggestive of malignant epithelial neoplasia, but neoplastic cells were not found in the effusion. An ovarian tumor was suspected on the basis of clinical signs, clinicopathologic findings, and results of cytologic evaluation of the mass.;Treatment and Outcome-Surgical exploration revealed a large left ovary, a normal-appearing contralateral ovary, and a mass in the fat body, all of which were removed and submitted for histologic examination. The histologic diagnosis was granulosa cell tumor with metastasis to the fat body. The patient died 11 months after evaluation, and disseminated granulosa cell tumor was confirmed at necropsy; histologic examination at that time also identified systemic mastocytosis.;Clinical Relevance-Granulosa cell tumors are uncommon in reptiles, and this was the first granulosa cell tumor described antemortem cytologically, histologically, and ultrastructurally in an iguana. Findings in this iguana underscored concerns associated with incomplete oophorectomy of iguanas; cytologic and histopathologic findings were similar to those observed in other domestic animals. Oophorectomy should be considered as an alternative to standard ovariosalpingectomy to avoid potential complications in pet reptiles, and use of microsurgical instruments and vascular clips is advised. (J Am Vet Med Assoc 2011239:237-242
Conservation of the Anegada Iguana (Cyclura pinguis)
Full text linkThe long-term survival of the Anegada Iguana (Cyclura pinguis) is uncertain. The species is in danger of becoming extinct due to habitat destruction, competition with feral livestock, and the introduction of non-native mammalian predators. In an effort to save the Anegada Iguana, the IUCN Iguana Specialist Group and the British Virgin Islands National Parks Trust began a concerted conservation effort in 1997. They initiated a headstart program in order to bolster the wild population until many of the problems facing the iguanas can be minimized or removed. Headstarted iguanas were released back into the wild in October of 2003 and 2004. This paper briefly reviews the natural history of C. pinguis and presents some preliminary results from the ongoing long-term monitoring of the subadult iguanas reintroduced to the wild
- …
