01500nas a2200169   4500008004100000022001400041245009100055210006900146300001400215490000700229520096300236100002101199700001601220700001801236700002501254856005101279       2005                        eng d  a0022-339500aPROPERTIES OF CROWDING INDICES AND STATISTICAL TOOLS TO ANALYZE PARASITE CROWDING DATA0 aPROPERTIES OF CROWDING INDICES AND STATISTICAL TOOLS TO ANALYZE   a245 - 2520 v913 a<p>Crowding, i.e., the size of the infrapopulation inhabiting an individual host, is a major component of parasites&rsquo; environment, which often influences both morphological and life-history characters (the so-called density-dependent characters) in different parasite taxa. Although crowding equals intensity in case of a single parasite individual, mean intensity of the host population does not define mean crowding of the parasite population. Crowding indices are notoriously hard to handle statistically because of the inherently large number of nonindependent values in data. In this study, we aim to investigate the apparently paradox features of crowding indices and to make some proposals and also to introduce statistical methods to calculate confidence intervals and 1-sample and 2-sample tests for mean crowding. All methods described in this study are supported by the freely distributed statistical software Quantitative Parasitology.</p>
1 aReiczigel, Jenő1 aLang, Zsolt1 aRózsa, Lajos1 aTóthmérész, Béla  uhttp://www.bioone.org/doi/abs/10.1645/GE-281R101758nas a2200181   4500008004100000245016200041210006900203260000900272300001400281490000700295520101900302653001301321653002101334100002301355700001401378700001501392856016901407       2005                        eng d00aFirst report of parasites from pinnipeds in the Galapagos Islands, Ecuador, with a description of a new species of Philophthalmus (Digenea: Philophthalmidae)0 aFirst report of parasites from pinnipeds in the Galapagos Island  c2005  a614 - 6170 v913 a<p>A new species of digenetic trematode and 2 species of ectoparasites from Zalophus wollebaeki Silvertsen, 1953 (Carnivora: Otariidae) in the Galapagos Islands, Ecuador, are reported. These include an eye fluke of Philophthalmus Looss, 1899 (Echinostomata: Philophthalmidae) as well as, to our knowledge, the first report of Antarctophthirus microchir (Trouessart and Neumann, 1888) Enderlein, 1906 (Arthropoda: Anoplura) and Orthohalarachne diminuata (Doetschman, 1944) Newell, 1947 (Arthropoda: Acarina) from this host and location. Philophthalmus zalophi n. sp. differs from the 4 other marine species of Philophthalmus (P. andersoni Dronen and Penner, 1975; P. burrili Howell and Bearup, 1967; P. hegeneri Penner and Fried, 1963; and P. larsoni Penner and Trimble, 1970) by its mammalian host, large body size, lack of tegumental spines, posterior length of seminal vesicle, placement of genital pore, size ratio of oral sucker to acetabulum, shape and size of testes, and size ratio of ovary to testis.</p>
10aAnoplura10aAntarctophthirus1 aDailey, Murray, D.1 aEllin, R.1 aParás, A.  uhttps://bioone.org/journals/journal-of-parasitology/volume-91/issue-3/GE-3425/FIRST-REPORT-OF-PARASITES-FROM-PINNIPEDS-IN-THE-GALAPAGOS-ISLANDS/10.1645/GE-3425.full