Soil macro and micro fauna associated with different crops grown in Camarines Sur

Issue Date

10-2012

Abstract

Ten (10 municipalities in Camarines Sur were surveyed to collect and identify soil arthropods associated with different crops and determine the diversity from November 2011 to February 2012. Soil sampling, bait trapping and Tulgren funnel extraction were used. Classification and identification of collected soil arthropods from different crops was done, grouping them into functional guilds and families. Randomized Complete Block Design (RCBD), Duncan's Multiple Range Test (DMRT) and Shannon indices were used to compare population and diversity of soil arthropods. A total of 34 species of arthropods were found, with acarines (mites) and formicids (ants), as the most abundant. The most frequently found arthropods were collembolans (sprintails), isopods (sow bugs), chilopods (centipedes), diplopods (millipedes) and aranea (spider), amphipoda (lanfhoppers), protura (proturans), pseudoscorpionida (false scorpio), diptera (larvae of flies and mosquitoes), coleoptera (wire worm), oligochaeta (earthworms), symphyla (symphylids), and pauropoda (pauropods) which were extracted using the Tulgren funnel. Orthoptera (field crickets), blattodea (cockroaches), dermaptera (earwigs), coleoptera (ground, dung, scarab, and minute beetles), hymenoptera (red fire ants, carpenter ants, crazy ants and harvester ants), diptera (flies), spiders, sow bugs, and larvae of pod borer wre collected from bait traps. In almost all municipalities, tuna was the most efficient bait for soil arthropods followed by Brewer's yeast, and then cookies. Thirty four (34) species of soil arthropods were classified either as shredders, predators, fungal feeders or herbivores. Diversity of soil arthropods in Bombon (H1=0.971) in sweet potato field was relatively greater than that in Naga City (H1=0.967) in corn, Ocampo (H1=0.962) in cassava, Calabanga (H1=0.954) in okra, Goa (H1=0.949) in rice (H1=0.944) in rice, Milaor (H1=0.932) in cassava, Iriga (H1=0.928) in rice, Pili (H1=0.917) in sweet potato and Bula (H1=0.824).

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

26

Issue

2

Page

196

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

ARTHROPODA; SOIL FAUNA; SOIL FLORA; SOIL ORGANISMS; BIODIVERSITY; PHILIPPINES

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