Health assessment of Conolophus subcristatus, Conolophus pallidus, and C. subcristatus X Amblyrhynchus cristatus hybrid (Galápagos land iguanas)

Autoři: Gregory A. Lewbart aff001;  Colon J. Grijalva aff002;  Paul P. Calle aff005;  Karen Ingerman aff005;  Juan Pablo Muñoz-Pérez aff002;  Galo Quezada aff008;  Carlos A. Vera aff008;  Gabriele Gentile aff009;  Carlos A. Valle aff001
Působiště autorů: Universidad San Francisco de Quito USFQ, Colegio de Ciencias Biológicas y Ambientales, Casilla, Quito, Ecuador aff001;  Galápagos Science Center GSC, Av. Alsacio Northia, Isla San Cristobal, Galápagos, Ecuador aff002;  North Carolina State University College of Veterinary Medicine, William Moore Drive, Raleigh, NC, United States of America aff003;  Universidad San Francisco de Quito, Escuela de Medicina Veterinaria, Diego de Robles s/n y Pampite, Quito, Ecuador aff004;  Wildlife Conservation Society, Zoological Health Program, New York, New York, United States of America aff005;  University of the Sunshine Coast, Sippy Downs, Queensland, Australia aff006;  Fundación Equilibrio Azul, Machalilla, Ecuador aff007;  Dirección Parque Nacional Galápagos, Technical Biodiversity Research, Puerto Ayora, Galápagos, Ecuador aff008;  Department of Biology, Tor Vergata University, Via della Ricerca Scientifica, Rome, Italy aff009
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article


The land iguanas, Conolophus pallidus and Conolophus subcristatu are large and charismatic lizards endemic to the Galápagos archipelago, but little information exists on their normal health parameters. The former is restricted to Santa Fe island, while C. subcristatus inhabits the islands of the central and western region of the archipelago. Both species are classified as vulnerable by the IUCN Red List of Threatened Species. As part of a population health assessment authorized by the Galápagos National Park, wild adult iguanas from three islands (North Seymour, South Plazas, and Santa Fe) were captured in July 2018. Data from a single C. subcristatus X Amblyrhynchus cristatus hybrid captured on South Plazas is also included. We analyzed blood samples drawn from 52 healthy wild adult land iguanas captured on three islands. An iSTAT portable blood analyzer was used to obtain values for pH, lactate, pO2, pCO2, HCO3-, sO2%, hematocrit, packed cell volume (PCV), hemoglobin Na, K, iCa, and glucose. Standard laboratory hematology techniques were employed for PCV determination; resulting values were also compared to the hematocrit values generated by the iSTAT. Body temperature, heart rate, respiratory rate, and body measurements were also recorded and compared to previously published data for the marine iguana (Amblyrhynchus cristatus), which shares a common ancestor with the land iguana. The data reported here provide preliminary baseline values that may be useful in comparisons between captive and wild populations, between wild populations, and in detecting changes in health status among Galápagos land iguanas affected by anthropogenic threats, climate change, or natural disturbances.

Klíčová slova:

Biochemistry – Blood – Body temperature – Heart rate – Hematology – Hemoglobin – Islands – Iguanas


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2019 Číslo 10
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