Showing posts with label Florida Tree Snails. Show all posts
Showing posts with label Florida Tree Snails. Show all posts

Wednesday, August 11, 2010

Liguus fasciatus, mating in their natural habitad

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" Florida Tree Snails are hermaphroditic, meaning they have both male and female
sexual organs. Hillis (1989) investigated with laboratory breeding and found that partial
self-fertilization (a single clutch containing both self-fertilized and outcrossed eggs) does
occur in L. fasciatus solidus. Their genetalia are located on the right side of the head and
behind the antennae. The snail is sexually mature in their third year and they can locate
mates by following slime trials (Brown, 1978). Mating occurs between the months of
June and August with a 1-2 day courtship and then egg deposition occurs in the months
of September and October (Jones, 1954). One to fifty eggs, which are a thin, elliptical,
pale brown, calcareous shell, (Pilsbry, 1912) are deposited in the nests built in the leaf
litter four to five centimeters deep (Voss, 1976). The eggs hatch the following April in
concurrence with the beginning of the rainy season. Simpson (1929a) and Voss (1976
observed excessive numbers of dead snails soon after the egg laying period which reflects
a high post reproductive mortality rate."

Jason R. Fadely. May 2009 "Population Distribution of Liguus fasciatus solidus in Long Pine Key of Everglades National Park."


© Juan C Aguero (juanKa)

Tuesday, August 10, 2010

Safari Today, Everglades National Park

Una serie de 5 fotografías de los Everglades de Juan C. Aguero.

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Mating season

Imagen 1 de 5: los Everglades.Liguus fasciatus testudineus Pilsbry, 1912
and
castaneozonatus Pilsbry, 1912

Mating

Imagen 2 de 5: los Everglades.
Imagen 3 de 5: los Everglades.Liguus fasciatus castaneozonatus Pilsbry, 1912

Mating

Imagen 4 de 5: los Everglades.Liguus fasciatus castaneozonatus Pilsbry, 1912

Imagen 5 de 5: los Everglades.Liguus fasciatus eburneus Simpson, 1920

© Juan C Aguero (juanKa)
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reproduce without written permission from
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Mating season

Liguus fasciatus testudineus Pilsbry, 1912
and
castaneozonatus Pilsbry, 1912

Mating


Liguus fasciatus castaneozonatus Pilsbry, 1912

Mating

Liguus fasciatus castaneozonatus Pilsbry, 1912

Liguus fasciatus eburneus Simpson, 1920

© Juan C Aguero (juanKa)

Thursday, August 5, 2010

Not only Liguus

Una serie de 10 fotografías de caracoles arbóreos Liguus fasciatus de Juan C. Aguero.

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Imagen 1 de 10: caracoles arbóreos Liguus fasciatus.
Imagen 2 de 10: caracoles arbóreos Liguus fasciatus.
Imagen 3 de 10: caracoles arbóreos Liguus fasciatus.
Imagen 4 de 10: caracoles arbóreos Liguus fasciatus.
Imagen 5 de 10: caracoles arbóreos Liguus fasciatus.
Imagen 6 de 10: caracoles arbóreos Liguus fasciatus.Liguus fasciatus castaneozonatus Pilsbry, 1912

Imagen 7 de 10: caracoles arbóreos Liguus fasciatus.Liguus fasciatus castaneozonatus Pilsbry, 1912

Imagen 8 de 10: caracoles arbóreos Liguus fasciatus.Liguus fasciatus castaneozonatus Pilsbry, 1912

Imagen 9 de 10: caracoles arbóreos Liguus fasciatus.Liguus fasciatus solidus (Say, 1825)

Imagen 10 de 10: caracoles arbóreos Liguus fasciatus.Liguus fasciatus castaneozonatus Pilsbry, 1912

© Juan C Aguero (juanKa)
DO NOT MANIPULATE,DOWNLOAD reproduce without written permission from Juan C Aguero. All rights reserved.






Liguus fasciatus castaneozonatus Pilsbry, 1912

Liguus fasciatus castaneozonatus Pilsbry, 1912

Liguus fasciatus castaneozonatus Pilsbry, 1912

Liguus fasciatus solidus (Say, 1825)

Liguus fasciatus castaneozonatus Pilsbry, 1912

© Juan C Aguero (juanKa)