398
1. Zane et a1.
Pardi L, Ercolini A (1986) Zonal recovery mechanisms in talitrid
crustaceans. Boll Zool53: 139-160
Patarne1lo T, Bisal PM, Battaglia B (1989) Studies on differential
fitness of GPI genotypes with regard to temperature in
Gammarus insensibilis (Crustacea: Amphipoda). Mar BioI
102: 355-359
Sambrook J, Fritsch EF. Maniatis T (1989) Molecular cloning: a
laboratory manual. Cold Spring Harbor Lab Press. Cold
Spring Harbor, New York
Shihab AF, Heath DJ (1987) Components of fitness and the GPI
polymorphism in the freshwater isopod Asellus aquaticus
(L.). 2. Zygotic selection. Heredity 58: 289-295
Swofford D1, Selander RB (1989) BIOSYS-l: a computer programme for the analysis of allelic variation in population
genetics and biochemical systematics. III Nat Hist Surv, lll,
USA
Taylor AC, Spicer II (1986) Oxigen-transporting properties ofthe
blood of two semi-terrestrial amphipods, Orchestia gammarellus {Pallas} and O. meditermnea (Costa). J Exp Mar
Bioi Eco197: 135-150
Watt WB (1992) Eggs. enzymes, and evolution-natural genetic
variants change insect fecundity. Proc Natl Acad Sci USA 89:
10608-10612
Wildish DJ (1988) Ecology and natural history of aquatic
Talitroidea. Can J Zool 66: 2340-2359
Williams JFK, Kubelik AR. Livak K]. Rafalsky JA. Tingey SV
(1990) DNA polymorphisms amplified by arbitrary primers
are useful as genetic markers. Nucleic Acids Res IS: 65316535
World Conservation Monitoring Centre (1992) Global biodiversity: status of the Earth living resources. Chapman and Hall,
London