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Abstract

Morphological and molecular techniques were used to investigate the presence of hemogregarines and haemosporidians in biological samples of free-living Geoffroy's side-necked turtles (Phrynops geoffroanus) and Giant Amazon turtles (Podocnemis expansa) from Brazil. No evolutionary form of...

Author(s)
Oliveira, J. P. de; André, M. R.; Alves Júnior, J. R. F.; Lustosa, A. P. G.; Werther, K.
Publisher
Elsevier Ltd, Amsterdam, Netherlands
Citation
International Journal for Parasitology: Parasites and Wildlife, 2018, 7, 1, pp 75-84
Abstract

Parasite infections are a product of both ecological processes affecting host-parasite encounter rates and evolutionary dynamics affecting host susceptibility. However, few studies examine natural infection variation from both ecological and evolutionary perspectives. Here, we describe the...

Author(s)
Weber, J. N.; Kalbe, M.; Shim KumChuan; Erin, N. I.; Steinel, N. C.; Ma Lei; Bolnick, D. I.
Publisher
University of Chicago Press, Chicago, USA
Citation
American Naturalist, 2017, 189, 1, pp 43-57
Abstract

Parasites can be a major cause of natural selection on hosts, which consequently evolve a variety of strategies to avoid, eliminate, or tolerate infection. When ecologically similar host populations present disparate infection loads, this natural variation can reveal immunological strategies...

Author(s)
Weber, J. N.; Steinel, N. C.; Shim KumChuan; Bolnick, D. I.
Publisher
National Academy of Sciences, Washington DC, USA
Citation
Proceedings of the National Academy of Sciences of the United States of America, 2017, 114, 25, pp 6575-6580
Abstract

Heterochrony is an important mechanism for the evolution of differences between and within species. In lampreys, heterochrony has been suggested as a mechanism contributing to fecundity differences in non-parasitic versus parasitic species. Non-parasitic lampreys, which do not feed at all after...

Author(s)
Spice, E. K.; Docker, M. F.
Publisher
Wiley-Blackwell, Oxford, UK
Citation
Journal of Zoology, 2014, 294, 1, pp 50-58
Abstract

The rate at which mutations occur in nature is itself under natural selection. While a general reduction of mutation rates is advantageous for species inhabiting constant environments, higher mutation rates can be advantageous for those inhabiting fluctuating environments that impose on-going...

Author(s)
M'Gonigle, L. K.; Shen, J. J.; Otto, S. P.
Publisher
Elsevier Inc, Orlando, USA
Citation
Theoretical Population Biology, 2009, 75, 4, pp 301-311
Abstract

In the past decade, there has been a new effort to understand the ecology that drives population divergence and speciation. It is well established in theory that speciation is most likely to occur when a trait that is under divergent natural selection in different populations is also used in mate...

Author(s)
Maccoll, A. D. C.
Publisher
Blackwell Publishing, Oxford, UK
Citation
Biological Journal of the Linnean Society, 2009, 96, 2, pp 425-433
Abstract

What is the extent and scale of local adaptation (LA)? How quickly does LA arise? And what is its underlying molecular basis? Our review and meta-analysis on salmonid fishes estimates the frequency of LA to be ∼55-70%, with local populations having a 1.2 times average fitness advantage relative to...

Author(s)
Fraser, D. J.; Weir, L. K.; Bernatchez, L.; Hansen, M. M.; Taylor, E. B.
Publisher
Nature Publishing Group, London, UK
Citation
Heredity, 2011, 106, 3, pp 404-420
Abstract

Reports of loss-of-efficacy (LOE) events in dogs infected with Dirofilaria immitis despite adherence to accepted prophylaxis regimens with a macrocyclic lactone anthelmintic are attracting considerable attention. It is crucially important to distinguish among several possible causes for these LOE...

Author(s)
Geary, T. G.; Bourguinat, C.; Prichard, R. K.
Publisher
Elsevier Inc, Orlando, USA
Citation
Topics in Companion Animal Medicine, 2011, 26, 4, pp 186-192
Abstract

The molecular phylogeny of Gyrodactylus salmonis from brook charr, Salvelinus fontinalis, rainbow trout, Oncorhynchus mykiss, cutthroat trout, O. clarkii, and Atlantic salmon, Salmo salar, in Canada is presented using sequences from ITS-rDNA and the mitochondrial COX 1 gene. Sequence variation...

Author(s)
Gilmore, S. R.; Abbott, C. L.; Cone, D. K.
Publisher
Blackwell Publishing Ltd, Oxford, UK
Citation
Journal of Fish Diseases, 2010, 33, 6, pp 461-467
Abstract

The monogene Dactylogyrus eucalius Mizelle and Regensberger, 1945 and its ability to maintain a population from year to year on the annual fish Culaea inconstans Kirkland was examined in a small lake in central Ontario. Fish were sampled toward the end of their annual breeding season, at a time...

Author(s)
King, S. D.; Cone, D. K.
Publisher
American Society of Parasitologists, Lawrence, USA
Citation
Journal of Parasitology, 2008, 94, 4, pp 973-975

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