TY - JOUR T1 - SPATIAL AND TEMPORAL VARIATION IN THE STRUCTURE OF A FRESH-WATER FOOD WEB JO - OIKOS PY - 1989/07/01 AU - WARREN PH ED - DO - DOI: 10.2307/3565588 VL - 55 IS - 3 SP - 299 EP - 311 Y2 - 2025/01/03 ER -