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Reptiles

    Kingdom: Animalia
    Division: Chordata
    Subdivision: Vertebrata
    Class: Reptilia

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Keystone species: a species that has a disproportionate effect on its environment relative to its abundance, affecting many other organisms in an ecosystem.

Saurophily: pollination by reptiles.

Saurophilous: plants that are pollinated by reptiles.

Additional Reptile Pollinator Resources

Positive Indirect Interactions between Neighboring Plant Species via a Lizard Pollinator (D. M. Hansen, H. C. Kiesbuy, C. G. Jones, and C. B. Muller In The American Naturalist, Vol. 169, No. 4, pp. 534-542, April 2007)

Reptiles are Unlikely, but Necessary, Island Pollinators

A blue-tailed day gecko sticking its head inside of a bright pink Trochetia flower.
A male blue-tailed day gecko
(Phelsuma cepediana) feeding on a
Trochetia blackburniana flower. Photo
courtesy of Dennis Hansen.

When asked to think about potential pollinators, bees, wasps, hummingbirds, bats, butterflies, and moths might all come to mind. But did you know that reptiles also pollinate plants? In fact, there are known occurrences of 37 different lizard species visiting flowers and/or providing pollination services in the gecko (Family: Gekkonidae), lacertid lizard (Family: Lacertidae), anoloid lizard (Family: Polychrotidae), skink (Family: Scincidae), and whiptail (Family: Teiidae) families. Saurophily, or pollination by reptiles, is most common on islands because there are fewer and less diverse insects for the lizards to eat and, often times, the usual bird pollinators are in decline or extinct.

The blue-tailed day gecko (Phelsuma cepediana) is endemic to Mauritius, along with a rare plant, Trochetia blackburniana. The plant's key pollinator, the olive white-eye (Zosterops chloronthos), a small passerine bird, has disappeared across most of its range. Luckily for the Trochetia, the day gecko has stepped in as pollinator. The gecko spends much of its time hiding in patches of Pandanus plants. Trochetia plants that grow nearest to the patches of Pandanus have a good chance of being pollinated by the gecko. The gecko feeds on pollen and nectar, and in doing so it collects pollen just behind its head and on its throat and chest. This pollen is then transferred to neighboring plants as the gecko continues to feed. Interestingly, Trochetia plants have evolved yellow and red nectar, while the nectar of almost all flowers is clear. It turns out that colored nectar actually helps attract the gecko to the Trochetia flowers. Other geckos in the genus Phelsuma besides the blue-tailed day gecko provide pollination services as well. Phelsuma ornata ornata pollinates several plant species on Round Island, and it has been speculated that Phelsuma geckos may be keystone pollinator species in some of their habitats.

Other examples of reptile pollination exist. Mediterranean lacertid (Family: Lacertidae) lizards pollinate plants: they have been documented with pollen adhering to their belly, throat, and lips, and carrying pollen for several hours so it may be transported a decent distance. Specifically, the Lilford's wall lizard (Podarcis lilfordi) was found in one study with over 200 grains of tree spurge (Euphorbia dendroides) pollen grains per animal, and has been recorded as a possible pollinator of at least 23 plant species. The Noronha skink (Euprepis atlanticus) pollinates the mulungu tree (Erythrina velutina) by climbing inside the flower to drink nectar. While doing so, the skink's body comes in contact with the flower's anthers and stigmas and pollen collects on the skink's scales. The skink inadvertently deposits pollen at the next flower from which it drinks.  

Reptile Pollinator Resources
Showing 5 Results
CollapseGecko Pollinators Help "Save" Rare Flower
Description: This news article discusses the relationship between the blue-tailed day gecko (Phelsuma cepediana), Pandanus, and Trochetia blackburniana on the island of Mauritius, and the research that is surrounding the relationship. The blue-tailed day gecko is the primary pollinator of the Trochetia blackburniana plant, especially when the plants are located near patches of Pandanus.
Resource Type: Announcements and News Articles
Resource Format: URL
Publisher: National Geographic
ExpandInvasive Ants Disrupt Gecko Pollination and Seed Dispersal of the Endangered Plant Roussea simplex in Mauritius
ExpandNeon green gecko key to preventing Mauritian plant extinction
ExpandRoles of Lizards in New Zealand Plant Reproduction
ExpandUnusual Pollination

More about reptiles...

Five-lined skink (Eumeces fasciatus).
Five-linked skink (Eumeces fasciatus) Photographer Credit: John J. Mosesso/NBII.gov.

Visit the reptiles section of the NBII to learn more about reptiles.

Blue-Tailed Day Gecko

A male and female blue-tailed day gecko sitting on a branch.
A male blue-tailed day gecko (Phelsuma cepediana) courting a female. Photo courtesy of Dennis Hansen.

Phelsuma cepediana

Description: The blue-tailed day gecko is a medium-sized gecko that reaches up to 6 inches. A red stripe runs from the nostril to the shoulder. Males are light- to bluish-green with a bright blue back, have dark red spots and dashes covering the body, and have a deep blue tail. Females do not have the deep blue coloration, but have a bright green back and rust-colored spots. This animal is diurnal and eats insects and nectar.

Habitat: This gecko prefers warm, humid places and dwells in trees and bushes such as coconut palms (Cocos nucifera), traveler's palms (Ravenala madagascariensis), banana trees (Genus: Musa), and papayas (Carica papaya).

Distribution: This species is widespread on the island Mauritius, an island off the coast of Africa.

Status: The blue-tailed day gecko is listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendix II, meaning the species is not necessarily now threatened with extinction but may become so unless trade is closely controlled.

Resources:
Insular interactions between lizards and flowers: flower visitation by an endemic Mauritian gecko (D. F. Nyhagen, C. Kragelund, J. M. Olesen, and C. G. Jones In Journal of Tropical Ecology, Vol. 17, pp. 755-761, 2001, Copyright 2001 Cambridge University Press)

Blue-Tailed Day Gecko: Phelsuma cepediana (Encyclopedia Mauritiana)

Phelsuma cepediana (Phelsumania.com)

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