Behavioral basis of second intermediate host specificity among four species of Haematoloechus (Digenea: Haematoloechidae)

Scott D. Snyder, J. Janovy

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Cercarial behavior patterns were examined in 4 species of frog lung flukes (Haematoloechus spp.). Cercariae of Haematoloechus complexus. Haematoloechus medioplexus, Haematoloechus longiplexus, and Haematoloechus varioplexus were exposed to 3 species of experimental arthropods and an inanimate control. The number of cercariae attached to an experimental host at 5 min postexposure was recorded. Haematoloechus longiplexus and H. complexus cercariae attached to experimental hosts at higher rates than cercariae of H. medioplexus and H. varioplexus. Cercariae of H. longiplexus attached to experimental hosts in approximately the same numbers as H. complexus, but H. longiplexus penetrated only damselfly naiads, and only at the base of the zygopteran caudal gills. Cercariae of H. complexus, a second intermediate host generalist, were able to penetrate and enter several arthropod species at the intersegmental membranes. Haematoloechus medioplexus and H. varioplexus are restricted to development in dragonfly naiads and cercariae rarely attached to and never penetrated experimental hosts. These behavioral patterns dictate the range of hosts suitable for metacercarial development of H. complexus. H. longiplexus, H. medioplexus, and H. varioplexus. The evolution of disparate patterns of behavior among the cercariae of these 4 congeners has directly affected subsequent patterns of transmission to the definitive host.

Original languageEnglish (US)
Pages (from-to)94-99
Number of pages6
JournalJournal of Parasitology
Volume82
Issue number1
DOIs
StatePublished - Feb 1 1996

Fingerprint

Cercaria
intermediate host
Digenea (Trematoda)
host specificity
cercariae
Host Specificity
intermediate hosts
arthropod
Odonata
Arthropods
definitive host
damselfly
dragonfly
arthropods
lung flukes
generalist
frog
Trematoda
Zygoptera
Anisoptera (Odonata)

ASJC Scopus subject areas

  • Parasitology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Behavioral basis of second intermediate host specificity among four species of Haematoloechus (Digenea : Haematoloechidae). / Snyder, Scott D.; Janovy, J.

In: Journal of Parasitology, Vol. 82, No. 1, 01.02.1996, p. 94-99.

Research output: Contribution to journalArticle

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