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Although the presence of an aquarium or other ectothermic animals in the environment would logically be a predisposing factor, infection without known exposure to ectothermic animals or aquatic environments is possible.
These modest mass-specific gill surface areas and corresponding low rates of oxygen delivery in ectothermic sharks likely dictate slow asymptotic growth rates (Pauly, 1981), in contrast to those of tunas, whose cardiovascular systems are adapted for meeting multiple metabolic demands (including growth) (Bushnell and Brill, 1991; Korsmeyer et al.
horridus atricaudatus is a generalist predator that opportunistically consumes a variety of endothermic and ectothermic prey.
Pathogenic fungi have primarily been viewed as threats to ectothermic organisms because ectotherms can have low body temperatures that are suitable for the growth of many fungi (31,39).
Including the four introductory chapters from the first volume, the 14 chapters of the second, Studies in Viral Ecology: Animal Host Systems, address coral, fish, insect, terrestrial mammal, and cetacean viruses; those infecting marine mollusks; the viral ecology of aquatic crustaceans, avian viruses, and ectothermic vertebrates; and the relationship between humans, their viruses, and prions.
In ectothermic teleost fishes growth process, is strongly influenced by environmental stimuli such as the changes in water temperature, photoperiod, food availability etc which along with the internal state of the animal is processed, integrated, and responded through hormonally mediated pathways, to trigger developmental processes such as hatching, metamorphosis (flatfishes, eels) or smoltification (salmonids), sexual maturation and spawning.
Using their combined experience, the authors set out to determine whether a variety of dinosaurs and closely related extinct animals were endothermic (warm-blooded) or ectothermic (cold-blooded), and when, where and how often in the dinosaur family tree this important trait may have evolved.
fr 40 F DEVELOPMENT OF THE HEART AND QUANTIFICATION OF SPONGY VERSUS COMPACT MYOCARDIUM IN ENDOTHERMIC AND ECTOTHERMIC SCOMBRID FISHES Doreen Emilee Carpio, Lori Critchfield, and Kathryn Dickson; California State University of Fullerton, Department of Biological Science; Fullerton, CA 92831 41 E INTROGRESSION OF MITOCHONDRIAL DNA BETWEEN CATOSTOMUS FUMEIVENTRIS AND CATOSTOMUS SANTAANAE (CYPRINIFORMES: CATOS-TOMIDAE) IN THE SANTA CLARA DRAINAGE Chris Chabot, Donald Buth, Camm Swift, Jonathan Sim, Thomas Dowling, Larry Allen (4); (1) UCLA, Los Angeles, CA, (2) Entrix, Inc.
Many ectothermic vertebrates undergo large diurnal and seasonal fluctuations in body temperature with associated changes in metabolism and in cardio-respiratory function (Wang et al.
In Effects of Temperature on Ectothermic Organisms: Ecological Implications and Mechanisms of Compensation.
Another group might be told that its ectothermic organism lives within the New York subway tunnels, depends on food scraps dropped by commuters for survival, weighs about 6 kg in adulthood, and must beware of the third rail as well as rats.
Since snakes are cold-blooded, or ectothermic, external sources--sunlight, air, water, or warm blacktop roads--heat their bodies.
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