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Population dynamics of Antarctophthirus microchir (Anoplura: Echinophthiriidae) in pups from South American sea lion, Otaria flavescens, in Northern Patagonia
SUMMARY We analysed population dynamics of the louse Antarctophthirus microchir in pups of the South American sea lion, Otaria flavescens, at the Punta León rookery (Argentina) over a period of 2Expand
Redescription of Antarctophthirus microchir (Anoplura: Echinophthiriidae) from the South American Sea Lion, Otaria flavescens, from Patagonia, Argentina
The question of whether A. microchir from different sea lion hosts may represent a complex of cryptic species is raised, considering the conservative morphology, and ecological and evolutionary features of sucking lice. Expand
Life begins when the sea lion is ashore: microhabitat use by a louse living on a diving mammal host.
This work studied habitat selection of Antarctophthirus microchir on South American sea lion pups (Otaria flavescens Shaw, 1800) from Patagonia, Argentina, during the austral summer of 2009 and found a clear pattern of habitat selection: eggs are laid on the dorsal surface; nymphs 1 hatch there and then migrate to the belly, where they develop into adults and copulate; and then ovigerous females return to the dorsalsurface. Expand
Scanning electron microscopy of Antarctophthirus microchir (Phthiraptera: Anoplura: Echinophthiriidae): studying morphological adaptations to aquatic life.
For the first time, the external structure of all stages of an echinophthiriid louse is studied and the results are discussed in the light of their evolutionary, functional, and ecological implications. Expand
Lousy mums: patterns of vertical transmission of an amphibious louse
In this study, we document patterns of vertical transmission of the amphibious louse Antarctophthirus microchir (Echinophthiriidae) in pups of South American sea lion, Otaria flavescens, fromExpand
Antarctophthirus carlinii (Anoplura: Echinophthiriidae), a new species from the Weddell seal Leptonychotes weddelli
It is proposed that lice from Weddell seals constitute a new species, Antarctophthirus ogmorhini, described and illustrated adults of this new species collected during the austral summer of 2014 at the Danco Coast, Antarctic Peninsula. Expand
Uncovering deep mysteries: the underwater life of an amphibious louse.
Testing the survival capability of different instars of Antarctophthirus microchir from South American sea lions Otaria flavescens showed that the forms present in non-diving pups--i.e. eggs and first-instar nymphs--were unable to tolerate immersion in water, while following instars and adults, all usually found in diving hosts, supported it very well. Expand
What does heat tell a mosquito? Characterization of the orientation behaviour of Aedes aegypti towards heat sources.
It is shown that heat alone is sufficient to elicit orientation behaviour, and it is found that female mosquitoes, but not males, are able to discriminate among heat sources when no other stimuli are present, eliciting a positive response towards host-range and an avoidance response towards deleterious temperatures. Expand
A stranding of Balaenoptera borealis (Lesson 1828) from Patagonia, Argentina, with notes on parasite infestation and diet
The stomach content of the whale was dominated by crustaceans, and the first record of a host carrying the latter two species in the South-West Atlantic Ocean. Expand
Faster the better: a reliable technique to sample anopluran lice in large hosts
  • M. Leonardi
  • Biology, Medicine
  • Parasitology Research
  • 22 April 2014
A sample technique that minimized the manipulation time and also avoiding the use of anesthesia was described and discussed for the first time, being a reliable methodology. Expand