A genus-wide analysis of genetic variation to guide population management, hybrid identification, and monitoring of invasions and illegal trade in Iguana (Reptilia: Iguanidae)

  title={A genus-wide analysis of genetic variation to guide population management, hybrid identification, and monitoring of invasions and illegal trade in Iguana (Reptilia: Iguanidae)},
  author={Matthijs P. van den Burg and Fr{\'e}d{\'e}ric Grandjean and David Schikorski and Michel Breuil and Catherine L. Malone},
  journal={Conservation Genetics Resources},
  pages={435 - 445}
Biodiversity and wild populations are globally threatened by a wide range of actors. The genus Iguana, widely distributed throughout the Americas, is under threat by invasive species, hybridization, the global pet trade, and habitat destruction. This holds especially true for the insular lineages, with the Critically Endangered I. delicatissima having experienced a > 75% range decrease, primarily through hybridization with non-native iguanas. We collated published microsatellite data and… 

Iguanainsularis (Iguanidae) from the southern Lesser Antilles: An endemic lineage endangered by hybridization

The recent identification of this and other distinct insular species and subspecies in the eastern Caribbean, and evaluation of where hybridization has occurred, are timely and important because the native iguanas are in urgent need of conservation action.

Population estimate, natural history and conservation of the melanistic Iguana Iguana population on Saba, Caribbean Netherlands

Intraspecific diversity is among the most important biological variables, although still poorly understood for most species. Iguana iguana is a Neotropical lizard known from Central and South

Forensic Genetic Analyses of Melanistic Iguanas Highlight the Need to Monitor the Iguanid Trade

The geographic origin of melanistic iguanas (Iguana iguana) is assessed, which indicates that both animals carry a haplotype known to originate from the islands of Saba and Montserrat, populations taxonomically proposed to be Iguana melanoderma.

Urgent International Action Needed to Tackle Illegal Pet Trade in Caribbean Iguana Populations

Lizards in the Neotropical genus Iguana are heavily traded for the international pet trade, with unusual colour morphs and rare species commanding high prices. Recent research aimed to understand the



Genetic Evidence of Hybridization between the Endangered Native Species Iguana delicatissima and the Invasive Iguana iguana (Reptilia, Iguanidae) in the Lesser Antilles: Management Implications

Investigating the hybridization dynamics between the endemic and threatened Lesser Antillean iguana and the invasive common green iguana in the LesserAntilles as well as assessing the impact of interspecific hybridization on the decline of I. delicatissima and practical conservation recommendations are being discussed in the light of these findings.

Molecular variation and population structure in critically endangered Turks and Caicos Rock Iguanas: identifying intraspecific conservation units and revising subspecific taxonomy

Results suggest that at least two evolutionarily significant units (ESUs) can be recognized across this taxon’s geographic range, and future management planning for C. carinata should consider these evolutionarily independent lineages.

Highly Polymorphic Microsatellite Markers for the Assessment of Male Reproductive Skew and Genetic Variation in Critically Endangered Crested Macaques (Macaca nigra)

The results suggest that the Tangkoko population of crested macaques is still genetically variable despite its small size, isolation, and the species’ reproductive patterns, and gives hope that other endangered primate species living in small, isolated populations may also retain a healthy gene pool, at least in the short term.

Inferred vs Realized Patterns of Gene Flow: An Analysis of Population Structure in the Andros Island Rock Iguana

A major disparity between inferred and realized gene flow is revealed and its implications for managing populations of the endangered Andros Island Rock Iguana are discussed in a conservation perspective for species inhabiting highly fragmented landscapes.

Testing of microsatellite multiplexes for individual identification of Cape Parrots (Poicephalus robustus): paternity testing and monitoring trade

The results from this study provide a suit of markers that can be used to aid conservation and law enforcement authorities to better control legal and illegal trade of this South African endemic parrot.

Testing for hybridisation of the Critically Endangered Iguana delicatissima on Anguilla to inform conservation efforts

The degree of hybridisation between Anguilla’s Iguana species is assessed firstly using morphological characteristics and then genetic analysis to validate the genetic integrity of morphologically identified I. delicatissima population, and that of a population on the nearby island of Îlet Fourchue, St Barthélemy.

Age‐dependent, negative heterozygosity–fitness correlations and local effects in an endangered Caribbean reptile, Iguana delicatissima

The results provide only modest evidence that inbreeding depression influences the population dynamics of I. delicatissima on Dominica, and suggest that the survivorship of homozygous hatchlings does not differ markedly from that of their heterozygous counterparts.

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Overall the patterns of genetic variation suggested the existence of a mixed metapopulation model for this species, with high levels of gene flow compatible with one version of the classical model but often supported by particularly stable subpopulations as in the mainland-island model.

Phylogeography of the endangered Lesser Antillean iguana, Iguana delicatissima: a recent diaspora in an archipelago known for ancient herpetological endemism.

The low mtDNA variation of I. delicatissima suggests a single colonization coupled with rapid range expansion, potentially hastened by human-mediated dispersal.

Origin of the green iguana (Iguana iguana) invasion in the greater Caribbean Region and Fiji

Invasive populations of green iguanas (Iguanidae: Iguana iguana) are widely established beyond their native Central, South American, and Lesser Antillean range in various islands of the Pacific,