By Michael R. Warburg
Already as a tender boy, I used to stroll with my past due father, an ardent naturalist at middle, notwithstanding to his remorse no longer by way of occupation, within the fields and woods on Mt. Carmel the place we lived. My father, being principally an beginner ornithologist but in addition loving different vertebrates, was once much less inter ested within the little creatures(-the invertebrates) so ample less than stones. those have been, extra usually then no longer, isopods that are really plentiful within the Mediterranean zone of northern Israel, and hence no longer tough to come across (Fig. 1). therefore, my curiosity within the terrestrial isopods began at an early level. decades later, after graduating from the Hebrew college, Jerusalem, I labored as an assistant to my overdue buddy and colleague, Professor Michael Costa, on the academics Seminary in Oranim. someday i discovered on my table a duplicate of Edney's (1954) paper: Woodlice and the land habitat, which my buddy left for me realizing of my curiosity during this workforce. for that reason, as a result stimulus of Edney's paper, and the numerous attention-grabbing questions it raised in my brain, I built a lifelong curiosity during this awesome crustacean workforce. My study within the ecophysiology of this team to a wide quantity the instructions formulated through Edney and Cloudsley-Thompson whose identify can be pointed out all through this publication. i'm additionally indebted to the various stimulating discussions with my associates and co-workers C. S. Crawford, okay. E. Linsenmair, and E.
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Extra resources for Evolutionary Biology of Land Isopods
1976; Dallinger 1977), as well as during the seasons of the year (Oguro and Sakai 1971; Wieser et al. 1977). In general, the copper content of adult isopods was higher than that of younger ones (Alikhan 1972a). In Porcellio laevis most of the copper was contained in the hepatopancreas (32-78 g/g dry wt. compared with 3-42 g/g dry wt. in the haemolymph). In the hepatopancreas copper is localized in special cells (Alikhan 1972; Hryniewiecka-Szyfter 1972). These are small cells (described by Wieser 1968, and then in detail by Prosi et al.
However, both Carefoot (1989) and Husain and Alikhan (1979a, b) described a negative Fig. 3. Tubular structure of pseudotrachea of Porcellio o/ivieri ( x 350) Fig. 4. 8 Fig. 5. Same structure as in Fig. 4 but in Procellio barroisi ( x 2000) Fig. 6. Same as in Fig. 5, enlarged ( x 5000) Fig. 7. Brushes at the entrance into pseudotrachea of Armadillo officina/is (X 3500) Fig. 8. Respiratory lamellae of Tylos sp. 10 Fig. 9. Air passa ge at the entra nce into the pseudotrachea of Porcellio laevis (X 500) Fig.
5 Excretory Organs and Excretion Under this heading we include organs involved in excretory or osmoregulatory functions as well as we discuss the excretory products in isopods. 1 Excretory Organs Various excretory organs have already been described in isopods by Nemec (1896a, b), Ter-Poghossian (1909), Mehely (1931) and Needham (1942). In isopods the antennary glands are located at the base of the antennae above the oesophagus. They are homologous to the maxillary glands of the decapods (Maissiat 1989).
Evolutionary Biology of Land Isopods by Michael R. Warburg