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Volume 04 (1) 1997

• Foraging patch residence time decisions in wolf spiders: Is perceiving prey as important as eating prey?

  Matthew H. PERSONS & George W. UETZ, Department of Biological Sciences, ML 0006, University of Cincinnati, Cincinnati, Ohio 45221, U.S.A., e-mail: personmh@ucbeh.san.uc.edu

• Role of free amino acids in the nitrogen economy of arctic cryptogams

  Knut KIELLAND, Institute of Arctic Biology, University of Alaska at Fairbanks, Fairbanks, Alaska 99775-0180, U.S.A., e-mail: fnkk@aurora.alaska.edu

• Host affiliation in two subarctic hemiparasitic plants: Bartsia alpina and Pedicularis lapponica

  Carin H. NILSSON & Brita M. SVENSSON, Department of Ecology, Plant Ecology, Lund University, Ecology Building, S-223 62 Lund, Sweden, e-mail: carin.nilsson@planteco.lu.se

• Postfire regeneration of Pinus halepensis Miller in a semi-arid area in Albacete province (southeastern Spain)

  José Mª HERRANZ, Juan J. MARTÍNEZ-SÁNCHEZ, Angel MARÍN & Pablo FERRANDIS, Department of Plant Production and Agricultural Technology. E.T.S.I.A. University of Castilla-La Mancha, Crtra. Las Peñas de San Pedro, Km 3.2, 02071 Albacete, Spain.

• Nitrogen limitation of the microbial biomass in an old-growth forest soil

  Stephen C. HART, School of Forestry, College of Ecosystem Science and Management, Northern Arizona University, Flagstaff, Arizona 86011-5018, U.S.A., e-mail: steve.hart@nau.edu
  John M. STARK, Department of Biology and the Ecology Center, Utah State University, Logan, Utah, 84322-5305, U.S.A.

• The relationship between fine root demography and the soil environment in northern hardwood forests

  Ronald L. HENDRICK & Kurt S. PREGITZER, Department of Forestry, Michigan State University, East Lansing, Michigan 48824, U.S.A., e-mail: rhendric@uga.cc.uga.edu

• Patterns of retention and utilization of aerially deposited nitrogen in boreal peatlands

  Yenhung LI & Dale H. VITT, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada, e-mail: dvitt@gpu.srv.ualberta.ca

• Dispersal patterns of the rust Gymnosporangium cornutum between the hosts Juniperus communis and Sorbus aucuparia (Note)

  Anders WENNSTRÖM, Department of Ecological Botany, University of Umeå, S-901 87 Umeå, Sweden, e-mail: anders@ekbot.umu.se
  Birgitta ERIKSSON, BIG, University of Umeå, S-901 87 Umeå, Sweden.

• Trophic ecology and ecomorphology of fish assemblages in coastal lakes of Benin, West Africa

  Alphonse ADITE & Kirk O. WINEMILLER, Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, Texas 77843, U.S.A., e-mail: kow1956@zeus.tamu.edu

• Low male return rate due to clutch enlargements in the pied flycatcher (Ficedula hypoleuca)

  Pirkko SIIKAMÄKI & Matti HOVI, Department of Biological and Environmental Science, Konnevesi Research Station, University of Jyväskylä, P.O. Box 35, FIN-40351 Jyväskylä, Finland, e-mail: psiikama@jylk.jyu.fi
  Osmo RÄTTI, Arctic Centre, University of Lapland, P.O. Box 122, FIN-96101 Rovaniemi, Finland.

• Yellow snow and red deer: Do urinary metabolites reflect anthropogenic influences?

  Karoline T. SCHMIDT, Institute of Wildlife Biology and Game Management, University of Agriculture, Peter-Jordan Strasse 76, A-1190 Wien, Austria.
  Arno C. GUTLEB, Institute of Medical Chemistry, University of Veterinary Medicine, Josef-Baumann-Gasse 1, 1210 Wien, Austria.

• Reproductive success and parental effort of Tengmalm's owls: Effects of spatial and temporal variation in habitat quality

  Harri HAKKARAINEN, Vesa KOIVUNEN & Erkki KORPIMÄKI, Laboratory of Ecological Zoology, Department of Biology, University of Turku, FIN-20014 Turku, Finland, e-mail: harhak@sara.cc.utu.fi

• Response of a lizard species to the senescence of a dominant plant in the Sonoran desert

  Robert T. M'CLOSKEY, Department of Biological Sciences, University of Windsor, Windsor, Ontario N9B 3P4, Canada, e-mail: mcloske@server.uwindsor.ca

• Interactions between a high-mountain shrub, Genista versicolor (Fabaceae), and its seed Predators

  José M. GÓMEZ & Daniel GARCÍA, Departamento de Biología Animal y Ecología, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain, e-mail: jmgreyes@goliat.ugr.es

• Insect herbivory on juveniles of a threatened plant, Cirsium pitcheri, in relation to plant size, density and distribution

  Lynn M. STANFORTH, Svata M. LOUDA & Robert L. BEVILL, School of Biological Sciences, University of Nebraska, Lincoln, Nebraska 68588-0118, U.S.A., e-mail: slouda@unl.edu

• Relationships among plant-parasitic nematodes, mycorrhizal fungi and the dominant vegetation of a sand dune system

  L. Richard LITTLE & M. Anwar MAUN, Department of Plant Sciences, The University of Western Ontario, London, Ontario, N6A 5B7, Canada, e-mail: amaun@julian.uwo.ca