Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida)
In view of the rapid loss of biodiversity, large-scale environmental monitoring programs are urgently needed, over a range of local, regional and global scales. These programs can be made more efficient and cost-effective through shortcuts such as reduction of sampling effort and the use of low-cost...
| Autor principal: | Franklin, E. |
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| Outros Autores: | Moraes, Jamile de, Landeiro, Victor Lemes, Souza, Jorge Luiz Pereira, Pequeno, Pedro Aurélio Costa Lima, Magnusson, William Ernest, Morais, José Wellington |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Ecological Indicators
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17863 |
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oai:repositorio:1-17863 |
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oai:repositorio:1-17863 Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) Franklin, E. Moraes, Jamile de Landeiro, Victor Lemes Souza, Jorge Luiz Pereira Pequeno, Pedro Aurélio Costa Lima Magnusson, William Ernest Morais, José Wellington Biodiversity Surrogates Distribution Patterns Grid Position Representative Species Species Discarding Biodiversity Cost Effectiveness Forestry Matrix Algebra Conservation Abundance Biodiversity Biomonitoring Community Composition Cost-benefit Analysis Data Set Environmental Change Fractionation Habitat Conservation Habitat Loss Mite Multivariate Analysis Ph Population Distribution Rainforest Biodiversity Conservation Cost Effectiveness Forestry Species Identification Acari Oribatida In view of the rapid loss of biodiversity, large-scale environmental monitoring programs are urgently needed, over a range of local, regional and global scales. These programs can be made more efficient and cost-effective through shortcuts such as reduction of sampling effort and the use of low-cost surrogates. We revisited a large-scale dataset composed by 161 species recorded in 72 plots of 250 m, distributed over an 8 m × 8 m sampling grid in the tropical rainforest. Samples of litter and soil were collected and oribatid mites were extracted with a Berlese-Tullgren apparatus. Using a "moving window" procedure, we delimited smaller 5 km × 5 km grids in 16 possible positions within the larger grid. We first evaluated which fraction was more important to explain environmental and spatial patterns in the species composition: known environmental or spatial filters representing unknown causes of aggregation, and the confounded variance that might be associated with either or both. We used soil clay content, litter quantity, soil pH, number of trees, and distance to the nearest stream as environmental predictors. The spatial filters were generated using Moran Eigenvector mapping through the Principal Coordinates of Neighbor Matrices technique. To evaluate the influence of these fractions on the species composition, we used partial Redundancy Analysis. Using Principal Coordinates Analysis for abundance and presence/absence data, we evaluated if reduced matrices, discarding sets of less-frequent species, could identify the relationships captured with the complete dataset. All smaller grids contained more than 100 species. The effect of environmental variables on oribatid-mite community composition was always low, and each smaller grid position produced different results. Soil clay content and pH were the main factors associated with oribatid-mite distributions. The effects of unknown spatial patterns were greater than the environmental ones. Independently of the grid position, similar results were obtained for analyses with all oribatid-mite species, to the results obtained from analyses of only the most frequent species. Sets of more frequent and easily identifiable species proved to be a reliable surrogate for the complete assemblage. Omitting identifications of most species will improve the cost-effectiveness of monitoring programs. More emphasis should be placed on investigating the role of spatial heterogeneity and the effects of grid position in relation to patterns in species associations. Efficient biomonitoring could target surrogate species, to enable rapid tracking of environmental change while enlarging the sampling area to provide data for conservation strategies. © 2013 Elsevier Ltd. All rights reserved. 2020-06-15T21:49:43Z 2020-06-15T21:49:43Z 2013 Artigo https://repositorio.inpa.gov.br/handle/1/17863 10.1016/j.ecolind.2013.04.024 en Volume 34, Pags. 172-180 Restrito Ecological Indicators |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Biodiversity Surrogates Distribution Patterns Grid Position Representative Species Species Discarding Biodiversity Cost Effectiveness Forestry Matrix Algebra Conservation Abundance Biodiversity Biomonitoring Community Composition Cost-benefit Analysis Data Set Environmental Change Fractionation Habitat Conservation Habitat Loss Mite Multivariate Analysis Ph Population Distribution Rainforest Biodiversity Conservation Cost Effectiveness Forestry Species Identification Acari Oribatida |
| spellingShingle |
Biodiversity Surrogates Distribution Patterns Grid Position Representative Species Species Discarding Biodiversity Cost Effectiveness Forestry Matrix Algebra Conservation Abundance Biodiversity Biomonitoring Community Composition Cost-benefit Analysis Data Set Environmental Change Fractionation Habitat Conservation Habitat Loss Mite Multivariate Analysis Ph Population Distribution Rainforest Biodiversity Conservation Cost Effectiveness Forestry Species Identification Acari Oribatida Franklin, E. Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| topic_facet |
Biodiversity Surrogates Distribution Patterns Grid Position Representative Species Species Discarding Biodiversity Cost Effectiveness Forestry Matrix Algebra Conservation Abundance Biodiversity Biomonitoring Community Composition Cost-benefit Analysis Data Set Environmental Change Fractionation Habitat Conservation Habitat Loss Mite Multivariate Analysis Ph Population Distribution Rainforest Biodiversity Conservation Cost Effectiveness Forestry Species Identification Acari Oribatida |
| description |
In view of the rapid loss of biodiversity, large-scale environmental monitoring programs are urgently needed, over a range of local, regional and global scales. These programs can be made more efficient and cost-effective through shortcuts such as reduction of sampling effort and the use of low-cost surrogates. We revisited a large-scale dataset composed by 161 species recorded in 72 plots of 250 m, distributed over an 8 m × 8 m sampling grid in the tropical rainforest. Samples of litter and soil were collected and oribatid mites were extracted with a Berlese-Tullgren apparatus. Using a "moving window" procedure, we delimited smaller 5 km × 5 km grids in 16 possible positions within the larger grid. We first evaluated which fraction was more important to explain environmental and spatial patterns in the species composition: known environmental or spatial filters representing unknown causes of aggregation, and the confounded variance that might be associated with either or both. We used soil clay content, litter quantity, soil pH, number of trees, and distance to the nearest stream as environmental predictors. The spatial filters were generated using Moran Eigenvector mapping through the Principal Coordinates of Neighbor Matrices technique. To evaluate the influence of these fractions on the species composition, we used partial Redundancy Analysis. Using Principal Coordinates Analysis for abundance and presence/absence data, we evaluated if reduced matrices, discarding sets of less-frequent species, could identify the relationships captured with the complete dataset. All smaller grids contained more than 100 species. The effect of environmental variables on oribatid-mite community composition was always low, and each smaller grid position produced different results. Soil clay content and pH were the main factors associated with oribatid-mite distributions. The effects of unknown spatial patterns were greater than the environmental ones. Independently of the grid position, similar results were obtained for analyses with all oribatid-mite species, to the results obtained from analyses of only the most frequent species. Sets of more frequent and easily identifiable species proved to be a reliable surrogate for the complete assemblage. Omitting identifications of most species will improve the cost-effectiveness of monitoring programs. More emphasis should be placed on investigating the role of spatial heterogeneity and the effects of grid position in relation to patterns in species associations. Efficient biomonitoring could target surrogate species, to enable rapid tracking of environmental change while enlarging the sampling area to provide data for conservation strategies. © 2013 Elsevier Ltd. All rights reserved. |
| format |
Artigo |
| author |
Franklin, E. |
| author2 |
Moraes, Jamile de Landeiro, Victor Lemes Souza, Jorge Luiz Pereira Pequeno, Pedro Aurélio Costa Lima Magnusson, William Ernest Morais, José Wellington |
| author2Str |
Moraes, Jamile de Landeiro, Victor Lemes Souza, Jorge Luiz Pereira Pequeno, Pedro Aurélio Costa Lima Magnusson, William Ernest Morais, José Wellington |
| title |
Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| title_short |
Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| title_full |
Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| title_fullStr |
Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| title_full_unstemmed |
Geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: The case of oribatid mites (Acari: Oribatida) |
| title_sort |
geographic position of sample grid and removal of uncommon species affect multivariate analyses of diverse assemblages: the case of oribatid mites (acari: oribatida) |
| publisher |
Ecological Indicators |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17863 |
| _version_ |
1787141781375156224 |
| score |
11.680425 |