Results 31 to 40 of about 28,264 (210)
Evolutionary responses to invasion: cane toad sympatric fish show enhanced avoidance learning. [PDF]
The introduced cane toad (Bufo marinus) poses a major threat to biodiversity due to its lifelong toxicity. Several terrestrial native Australian vertebrates are adapting to the cane toad's presence and lab trials have demonstrated that repeated exposure ...
Georgina Caller, Culum Brown
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Divergent Selection on Dispersal Targets Chemosensory and Neuronal Genes in Tribolium castaneum. [PDF]
ABSTRACT Dispersal is key to the life history, ecology and evolution of many organisms and important in pest invasiveness. However, the genetic architecture underlying variation in dispersal behaviour remains poorly understood outside of a few model species.
Pointer MD +5 more
europepmc +2 more sources
Amblyomma dissimile is a common ectoparasite of cold blooded animals and is an accidental ectoparasite of some wild mammals. Details of the biology of specimens from the State of Amapá were studied in the laboratory in a humidity chamber at an average ...
Teresinha Tizu Sato Schumaker +1 more
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Divergence in host–parasite interactions during the cane toad's invasion of Australia
Coevolutionary host–parasite “arms races” can be disrupted by new evolutionary forces imposed by biological invasions, affecting both host and parasite densities, as well as their traits.
Lia Schlippe Justicia +4 more
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The ontogeny of sexual dimorphism in cane toads (Rhinella marina) [PDF]
Determining an individual’s sex early in life may clarify fundamental issues such as progeny sex ratios and sex-based divergences in ecology and behaviour prior to maturity and be useful in captive breeding of endangered species or in developing methods ...
Cameron Marshall Hudson +2 more
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Developmental stages of a haemogregarine in erythrocytes of the lizard Ameiva ameiva (Teiidae), from Pará State, north Brazil, were shown to be those of Hemolivia by the nature of the parasite’s sporogonic cycle in the tick Amblyomma rotondatum. The type
Lainson R., De Souza M.C., Franco C.M.
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Published as part of Gunther, Albert C. L. G., Dallas, William S., Carruthers, William & Francis, William, 1885, The Annals and Magazine of Natural History, Including Zoology, Botany, and Geology, pp. 1-96 in Reptiles and Batrachians from Brazil, LONGMANS, GREEN, AND CO.; SIMPKIN, MARSHALL, AND CO.; KENT AND CO.,; WHITT AKER AND CO.: BAILLIERE, PARIS ...
Gunther, Albert C. L. G. +3 more
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INNERVATION OF THE LARGE INTESTINE OF THE TOAD (BUFO MARINUS) [PDF]
The morphology, physiology and pharmacology of the innervation of the toad (Bufo marinus) large intestine have been studied. The large intestine can be divided into the regions colon, rectum and cloaca, on morphological grounds, but acts as a unit in response to nerve stimulation.
H, BOYD, G, BURNSTOCK, D, ROGERS
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Lankesterella poeppigii n. sp. is described from Bufo poeppigii (Tschudi, 1845) from Peru. Merogony and oogony occur in the capillary endothelium and the macrophages in the liver, spleen and kidneys. Meronts are oval, 25,2–29,4 x 15,7–16,8 μm in size and
Ilan Paperna +3 more
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Juveniles of Lueheia inscripta (Westrumb, 1821) Travassos, 1919 (Acanthocephala: Plagiorhynchidae), an acanthocephalan with six lemnisci, are reported and described from mesenteries of frogs Leptodactylus fragilis Brochi, 1877 and a toad Bufo marinus ...
Salgado-Maldonado G. +1 more
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