Total number of prey delivered by male and female Eastern Screech-Owls identified to the lowest taxonomic category possible and arranged in order of abundance Prey N Insects Coleoptera (N = 166 larval individuals) 490 Orthoptera 220 Lepidoptera 64 Odonata 10 Cicadidae 3 Tettigoniidae 1 Unidentified insects 44 Crayfish Family Astacidae 81 Amphibians Family Ranidae 23 Leeches Subclass
Hirudinea 20 Mammals Peromyscus spp.
Parasitos Abreviacion Abundancia de parasitos por hospedero ZC ZCS Annelidae: Piscicolidae Pisci 2,8 0,5 *
Hirudinea gen.
Biotic Sampling--We collected a total of 86 distinct taxa of aquatic macroinvertebrates (Appendix 1), including representatives of the Insecta, Hydracarina, Crustacea, Oligochaeta,
Hirudinea, and Gastropoda.
Parasite samples were composed of one Protozoa, one Monogenoidea, two Digenea, four Nematoda, one Crustacea, and one
Hirudinea.
Leeches are annelids comprising the subclass
Hirudinea.
1 1 2 1
Hirudinea Mollusca/ Thiaridae/ 19 67 87 43 Mesogastropoda Melanoides tuberculatus Mollusca/ Physidae/ 2 25 42 15 Basommatopho- sp.
In all, 47 taxa were identified among the 80 samples of macroinvertebrates collected with hand net and Petersen dredge at the Banado Carilauquen; 37 corresponded to insects (mainly Coleoptera, Diptera and Hemiptera, in this order), 5 to gastropods, and the rest of invertebrates to Amphipoda, Oligochaeta,
Hirudinea, Turbellaria and Nematoda.
Annelida: Oligochaeta Oligochaeta Annelida:
Hirudinea Batracobdelloides tricarinata (Blanchard, 1987) Helobdella conifer (Moore, 1933) Helobdella stagnalis (Linnaeus, 1758) Arachnida: Acari Pontarachnidae TABLE 2 List of biological traits that were included during the study (adapted from Blocksom et al.
En suelo desnudo, los aportes de biomasa los hacen basicamente tres taxa (Tabla 3), entre ellos Haplotaxida que corresponde al 43% de peso total para esta zona e
Hirudinea con 36% de la biomasa total en este uso de suelo.
Leeches belong tophylum Annelida, class
Hirudinea and have a world-wide distribution.
Phylum Annelida was represented by two classes- Class Oligochaeta (3 species) and
Hirudinea (2 species).
Mugil platanus infected with Trypanosoma, Hemogregarina, Trichodina, Monogenoidea, copepods and
Hirudinea (8); Lepomis macrocephalus infected with Trichodina sp.
