Nematode Fauna of Tropical Rainforest in Brazil: A Descriptive and Seasonal Approach
Studies of nematode assemblages in natural ecosystems can contribute to better understanding of the occurrence, relevance, and ecology of plant-parasitic and other soil nematodes. Nematode assemblages and environmental parameters (organic matter, water content (WC), bulk density (BD), total porosity...
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Published in | Journal of nematology Vol. 48; no. 2; pp. 116 - 125 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Sciendo
01.06.2016
The Society of Nematologists |
Subjects | |
Online Access | Get full text |
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Summary: | Studies of nematode assemblages in natural ecosystems can contribute to better understanding of the occurrence, relevance, and ecology of plant-parasitic and other soil nematodes. Nematode assemblages and environmental parameters (organic matter, water content (WC), bulk density (BD), total porosity (Po),soil respiration, and soil texture) were investigated in two seasons (rainy and dry) in two forest areas of the Zona da Mata, Pernambuco State. The aim of our research was to evaluate the heterogeneity between two locations and seasons in the Brazilian Atlantic Forest. Structure and composition of the nematode assemblages differed between areas and across time. Rhabditidae dominated the rainy season in both forest soils. Rarefaction curves (RC) suggest that sampling to detect more nematode taxa should be more intensive in the rainy season. The forest soils have complex, stable soil food webs with high connectance and decomposition channels dominated by bacteria. The predator–prey relationships were not affected by changes in soil properties that fluctuate with time. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 E-mail: elvira.pedrosa@ufrpe.br. We thank Marcela Andrade and Maria Gabriela Cavalcante for assistance with nematode analyses. Financial support for this research came from the Agency for Support Science and Technology from Pernambuco State, FACEPE (no. IBPG-0255-5.03/10), and the Brazilian Federal Agency for Support and Evaluation of Graduate Education, CAPES (no. BEX 18531/12-1). This paper was edited by Erik Ragsdale. |
ISSN: | 0022-300X 2640-396X 2640-396X |
DOI: | 10.21307/jofnem-2017-017 |