Reproductive strategies for tropical lizards
In the summer of 1969 I spent three months in Costa Rica on an OTS field course in "Advanced Population Biology". The principle course leaders were D. H. Janzen, G. H. Orians, and J. H. Vandermeer. The specific problem I worked on was suggested to me by one of my doctoral committee members, D. W, Tinkle. We spent time at six different sites, although my lizard collections were made at the following four:
Finca La Pacifica, Guanacaste Pr., 7km N. of Canas
Finca Tobaga, Guanacaste Pr., 40km S. of Canas
La Selva Biological Station, Heredia Pr.
Isla de Providencia, Colombis
Those were the days before digitized/GPS-coordinated photography. And, I regret now, I was not alone in lacking any photographic documentation. The collection was sent, however, to the U. of Michigan Zoology Museum for species verification. As noted in the species id posts, several nomenclatural changes have occurred since '69; e.g. two Ameivas went to Holcosus, one Cnemidophorus went to Aspidoscellis, and C. lemniscatus went to C. espeuti.
Although not definitive, I believe my data strongly support the hypotheses (e.g. smaller clutches of larger eggs) outlined in Tinkle, et.al.
Here's a Dropbox link to the 6-page field report, with data, for this project.:
https://www.dropbox.com/s/zlqkjo79hhm9u45/Reprocuctive%20strategies%20of%20tropical%20lizards.pdf?dl=0
Observaciones
Fotos / Sonidos
Qué
Lagartija Arcoiris (Holcosus undulatus)Observ.
hoaryherperDescripción
From 7/1 to 7/16, near Canas, while participating in a three-month Organization for Tropical Studies field course, I collected eight specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry. These eight specimens were originally identified by me as Ameiva undulatus.
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Qué
Abaniquillo Centroamericano de Bosque Seco (Anolis cupreus)Observ.
hoaryherperDescripción
From 7/1 to 7/16, near Canas, while participating in a three-month Organization for Tropical Studies field course, I collected four specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Lagartija Espinosa Vientre Rosado (Sceloporus variabilis)Observ.
hoaryherperDescripción
From 7/1 to 7/16, near Canas, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Huico Siete Líneas (Aspidoscelis deppii)Observ.
hoaryherperDescripción
From 7/1 to 7/16, near Canas, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry. This specimen was originally identified by me as Cnemidophorus deppii.
Fotos / Sonidos
Qué
Meracho (Basiliscus basiliscus)Observ.
hoaryherperDescripción
From 7/1 to 7/16, near Canas, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Huico Centroamericano (Holcosus festivus)Observ.
hoaryherperDescripción
From 7/22 to 8/9, at La Selva, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry. This specimen was originally identified by me as Ameive festivus.
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Anolis Jaspeado (Anolis capito)Observ.
hoaryherperDescripción
From 7/22 to 8/9, at La Selva, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Abaniquilllo Verde (Anolis biporcatus)Observ.
hoaryherperDescripción
From 7/22 to 8/9, at La Selva, while participating in a three-month Organization for Tropical Studies field course, I collected two specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Abaniquillo Centroamericano (Anolis limifrons)Observ.
hoaryherperDescripción
From 7/22 to 8/9, at La Selva, while participating in a three-month Organization for Tropical Studies field course, I collected five specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Fotos / Sonidos
Qué
Ameiva Gigante (Ameiva ameiva)Observ.
hoaryherperDescripción
From 8/25 to 8/27, on Providencia, while participating in a three-month Organization for Tropical Studies field course, I collected one specimen for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
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Qué
Lobito Isleño (Cnemidophorus espeuti)Observ.
hoaryherperDescripción
From 8/25 to 8/27, on Providencia, while participating in a three-month Organization for Tropical Studies field course, I collected seven specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry. These seven were originally identified by me as C. lemniscatus
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Qué
Iguana Negra de Cola Espinosa (Ctenosaura similis)Observ.
hoaryherperDescripción
From 8/25 to 8/27, on Providencia, while participating in a three-month Organization for Tropical Studies field course, I collected nine specimens for a comparative study of reproductive strategies in tropical lizards. Preserved specimens were sent to U. of Michigan Zoology Museum, for positive id. Reproductive data for eleven different species will be up-loaded to a journal entry.
Comentarios
I find your work very interesting!
@diegolobom Thank you. It's probably pretty dated by now, and I've been retired so long that I am no longer current on subsequent research in this area. I still enjoy trying to ID Costa Rican lizards on iNat, but even that is becoming slightly onerous, due to my 84 year-old eyes (with glaucoma). Thanks again for your kind comments. Pura vida. Bill
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