Higher taxa vs. functional guilds vs. trophic groups as indicators of soil nematode diversity and community structure |
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| Affiliation: | 1. Department of Ecology, School of Biology, Aristotle University, Thessaloniki, Greece;2. Department of Environmental and Natural Resources Management, University of Patras, Greece;1. Department of Environmental Sciences and Engineering, Fudan University, Shanghai 200433, PR China;2. Department of Agricultural Economics, Sociology, and Education, Pennsylvania State University, University Park, PA 16802, USA;3. Faculty of Resources and Environmental Sciences, Hubei University, Wuhan 430062, PR China;1. Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, 300387, China;2. State Key Laboratory of Environmental Criteria and Risk Assessment and Laboratory of Riverine Ecological Conservation and Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China;3. College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China;1. Bingen University of Applied Sciences, Berlin Str. 109, Bingen, 55411, Germany;2. Northern Forestry Centre, Canadian Forest Service, 5320 122nd Street Edmonton, AB, T6 H 3S5, Canada;3. Institute of Physiocochemical and Biological Problems of Soil Science, Russian Academy of Sciences, Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia;4. Carl von Ossietzky Univesrsity of Oldenburg, Ammerländer Heerstraße 114-118, 26129, Oldenburg, Germany;1. Université de Toulouse, Labo Evolution & Diversité Biologique, UMR5174 EDB CNRS – Université Paul Sabatier-ENFA, F-31062 Toulouse, France;2. Faculty of Agriculture and Food Processing, University of Battambang, Raod 5, Battambang city, Cambodia;3. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;1. IMAR – Institute of Marine Research, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal;2. Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;3. Portuguese Hydrographic Institute, Rua das Trinas, 1249-093 Lisboa, Portugal;4. Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal |
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| Abstract: | Biodiversity surrogates are often used in ecology to save money and time. One such widely used surrogacy method is the higher taxon approach, also known in the literature as taxonomic sufficiency. This approach has rarely been applied to microscopic organisms like soil microfauna, although there is a lack of detailed taxonomic knowledge regarding the latter. We tested taxonomic sufficiency for genus alpha and beta diversity, as well as for community structure of soil nematodes. We also tested whether the functional classifications of nematodes into functional guilds and trophic groups can serve as efficient indicators of nematode diversity and community structure. We used data from soil nematode communities from five different microhabitats (soil, soil moss, rock moss, low tree trunk moss and high tree trunk moss) in forested and non forested areas at five different stations (differing in elevation and aspect). Our results showed that both the higher taxon approach and the functional surrogacy approach could serve as reliable indicators of alpha and beta diversity. Furthermore, our community analysis of both taxonomic and functional composition identified that the variability at the finer scales, and namely the habitat structure, played the leading role in shaping nematode communities. |
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| Keywords: | Biodiversity surrogacy Taxonomic sufficiency Beta diversity Ordination |
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