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Masked Shrew (Sorex Cinereus) Abundance, Diet and Prey Selection in an Irrigated Forest
Beginning of article
ABSTRACT.-Moisture has been proposed as the primary factor affecting local abundance of shrews. We studied invertebrate availability and masked shrew (Sorex cinereus) diet in wastewater-irrigated and nonirrigated forests in central Pennsylvania to better understand the relationships among moisture, invertebrate abundance and shrew diet. Earthworms, gastropods, isopods, millipedes, larval beetles and larval flies were more abundant in irrigated than nonirrigated plots during both spring and autumn, indicating greater availability of certain foods. Larval beetles and larval flies composed a greater portion of the masked shrew diet in irrigated plots during autumn (P < 0.05). Spiders, …
