Canadian Journal of Zoology, Ahead of Print. Cambeva piraquara, sp. nov., a restricted-range and rare species last collected from over 20 years ago, is described from the Rio Piraquara, upper Rio Iguaçu basin, Rio Paraná (La Plata) system. The new spe…
Canadian Journal of Zoology, Ahead of Print. In many species, the spatial ecology of early age classes can differ significantly from adults. Adult Western Rattlesnakes (Crotalus oreganus Holbrook, 1840) at the northern extent of their range undertake …
Canadian Journal of Zoology, Ahead of Print. Host behaviour should be a key determinant of the acquisition of “sit-and-wait” and nidicolous ectoparasitic arthropods that ambush the host in their environment and/or nest. Here, we tested the association…
Canadian Journal of Zoology, Ahead of Print. Digenea is a group of widespread parasitic flatworms with a complex life cycle including a successive change of parthenogenetic and hermaphroditic generations. Daughter sporocysts are among the least studie…
Canadian Journal of Zoology, Ahead of Print. Blood-feeding (sanguivory) has evolved more than two dozen times among birds, fishes, insects, arachnids, molluscs, crustaceans, and annelids; however, among mammals, it is restricted to the vampire bats. H…
Canadian Journal of Zoology, Ahead of Print. In this contribution to Dr. Brock Fenton’s Festschrift, we briefly reflect on Dr. Fenton’s seminal works examining bat swarming behaviour in Ontario and use these reflections as a launch pad to conduct a gl…
Canadian Journal of Zoology, Ahead of Print. Riparian environments are characterized by a gradient of environmental factors perpendicular to the watercourse, as the habitat changes from terrestrial to aquatic. These areas are highly diverse in compari…
Canadian Journal of Zoology, Ahead of Print. Interactions between killer whales (Orcinus orca (Linnaeus, 1758)) and long-finned pilot whales (Globicephala melas (Traill, 1809)) have been documented on numerous occasions, usually involving predation ev…
Canadian Journal of Zoology, Ahead of Print. Two new miniature tetra species of the Neotropical characid genus Priocharax Weitzman and Vari, 1987 are described, raising the known species diversity to seven. Both species occur in the Rio Juruá system, …
Canadian Journal of Zoology, Ahead of Print. The presence and abundance of organisms within an ecosystem often correlate with habitat variables that may have few, or unknown, functional values. Understanding the functional role of these variables is e…