Soil macroinvertebrate communities and ecosystem services in deforested landscapes of Amazonia

Marichal Raphaël, Grimaldi Michel, Feijoo Alexander, Oszwald Johan, Praxedes Catarina, Ruiz Cobo Dario Hernan, Del Pilar Hurtado Maria, Desjardins Thierry, Lopes Da Silva Mario Junior, Da Silva Costa Luiz Gonzaga, Souza Miranda Izildinha, Delgado Oliveira Mariana Nascimento, Brown George G., Tsélouiko Stéphanie, Martins Marlucia Bonifacio, Decaëns Thibaud, Velasquez Elena, Lavelle Patrick. 2014. Soil macroinvertebrate communities and ecosystem services in deforested landscapes of Amazonia. Applied Soil Ecology, 83 : 177-185. International Colloquium on Soil Zoology. 16, Coimbra, Portugal, 6 Août 2012/10 Août 2012.

Quartile : Q1, Sujet : SOIL SCIENCE

Résumé : Land use changes in the Amazon region strongly impact soil macroinvertebrate communities, which are recognized as major drivers of soil functions (Lavelle et al., 2006). To explore these relations, we tested the hypotheses that (i) soil macrofauna communities respond to landscape changes and (ii) soil macrofauna and ecosystem services are linked. We conducted a survey of macrofauna communities and indicators of ecosystem services at 270 sites in southern Colombia (department of Caqueta) and northern Brazil (state of Pará), two areas of the Amazon where family agriculture dominates. Sites represented a variety of land use types: forests, fallows, annual or perennial crops, and pastures. At each site we assessed soil macroinvertebrate density (18 taxonomic units) and the following ecosystem service indicators: soil and aboveground biomass carbon stock; water infiltration rate; aeration, drainage and water storage capacities based on pore-size distribution; soil chemical fertility; and soil aggregation. Significant covariation was observed between macrofauna communities and landscape metric data (co-inertia analysis: RV = 0.30, p < 0.01, Monte Carlo test) and between macrofauna communities and ecosystem service indicators (co-inertia analysis: RV = 0.35, p < 0.01, Monte Carlo test). Points located in pastures within 100 m of forest had greater macrofauna density and diversity than those located in pastures with no forest within 100 m (Wilcoxon rank sum test, p < 0.01). Total macroinvertebrate density was significantly correlated with macroporosity (r2 = 0.42, p < 0.01), as was the density of specific taxonomic groups: Chilopoda (r2 = 0.43, p < 0.01), Isoptera (r2 = 0.30, p < 0.01), Diplopoda (r2 = 0.31, p < 0.01), and Formicidae (r2 = 0.13, p < 0.01). Total macroinvertebrate density was also significantly correlated with available soil water (r2 = 0.38, p < 0.01) as well as other soil-service indicators (but with r2 < 0.10). Results demonstrate that landscape dynamics and composition affect soil macrofauna communities, and that soil macrofauna density is significantly correlated with soil services in deforested Amazonia, indicating that soil macrofauna have an engineering and/or indicator function.

Mots-clés Agrovoc : Invertébré, faune du sol, enquête sur les exploitations agricoles, service, écosystème, paysage, utilisation des terres, organisme indicateur, biodiversité, dégradation de l'environnement, impact sur l'environnement, déboisement

Mots-clés géographiques Agrovoc : Colombie, Para, Amazonie

Mots-clés complémentaires : Service environnemental, Déforestation

Classification Agris : K01 - Foresterie - Considérations générales
P01 - Conservation de la nature et ressources foncières
P34 - Biologie du sol

Champ stratégique Cirad : Axe 6 (2014-2018) - Sociétés, natures et territoires

Auteurs et affiliations

• Marichal Raphaël, CIRAD-PERSYST-UPR Systèmes de pérennes (IDN) ORCID: 0000-0001-9070-5749
• Grimaldi Michel, IRD (FRA)
• Feijoo Alexander, Universidad Tecnológica de Pereira (COL)
• Oszwald Johan, Université de Haute-Bretagne (FRA)
• Praxedes Catarina, MPEG (BRA)
• Ruiz Cobo Dario Hernan, Universidad Tecnológica de Pereira (COL)
• Del Pilar Hurtado Maria, CIAT (COL)
• Desjardins Thierry, IRD (FRA)
• Lopes Da Silva Mario Junior, UFRA (BRA)
• Da Silva Costa Luiz Gonzaga, UFRA (BRA)
• Souza Miranda Izildinha, UFRA (BRA)
• Delgado Oliveira Mariana Nascimento, UFRA (BRA)
• Brown George G., EMBRAPA (BRA)
• Tsélouiko Stéphanie, Université Pierre et Marie Curie (FRA)
• Martins Marlucia Bonifacio, MPEG (BRA)
• Decaëns Thibaud, Université de Rouen (FRA)
• Velasquez Elena, Université de Rouen (FRA)
• Lavelle Patrick, Université Pierre et Marie Curie (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/574003/)

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