Original Article
Native tree species richness enhances matrix functionality for soil arthropods in tropical plantation landscapes: A case study from the Himalayas
Annesha Chowdhury,
Abhishek Samrat,
Rathnavel Pandian,
Soubadra Devy,
Corresponding Author
Annesha Chowdhury
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Manipal Academy of Higher Education, Manipal, Karnataka, India
Correspondence
Annesha Chowdhury, Bangalore (Main), Royal Enclave, Sriramapura, Jakkur Post, Bangalore 560 064, Karnataka, India.
Email: [email protected]
Search for more papers by this authorAbhishek Samrat
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Search for more papers by this authorRathnavel Pandian
Thondaimandalam Foundation, Virugambakkam, Chennai, Tamil Nadu, India
Search for more papers by this authorSoubadra Devy
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Search for more papers by this authorAnnesha Chowdhury,
Abhishek Samrat,
Rathnavel Pandian,
Soubadra Devy,
Corresponding Author
Annesha Chowdhury
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Manipal Academy of Higher Education, Manipal, Karnataka, India
Correspondence
Annesha Chowdhury, Bangalore (Main), Royal Enclave, Sriramapura, Jakkur Post, Bangalore 560 064, Karnataka, India.
Email: [email protected]
Search for more papers by this authorAbhishek Samrat
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Search for more papers by this authorRathnavel Pandian
Thondaimandalam Foundation, Virugambakkam, Chennai, Tamil Nadu, India
Search for more papers by this authorSoubadra Devy
Academy of Conservation Sciences and Sustainability Studies, ATREE, Bangalore (Main), Bangalore, Karnataka, India
Search for more papers by this authorFirst published: 09 May 2022
Editor/Associate Editor: Raphael K. Didham
Funding information: National Mission on Himalayan Studies - Implemented by the Ministry of Environment, Forest & Climate Change (MoEF&CC); Conservation, Food and Health Foundation - Biodiversity, Ecosystem Services and Human Wellbeing in the Darjeeling Tea-Forest Landscape; Rufford Foundation, Grant/Award Number: 19027-1
Abstract
- Despite their distinctive role in regulating agroecosystems, soil fauna is largely excluded from conservation action. With increasing evidence supporting matrix functionality as critical for multiple species in agroecosystems, it is important that efforts meant to enhance biodiversity in managed systems be inclusive and effective for all species and not just charismatic fauna.
- Third party certifications are a popular mechanism for claiming pro-conservation practises in tropical agricultural lands. Therefore, we asked whether voluntary practises codified by third party certifications of tropical tea plantations support soil biodiversity, and what factors explain soil arthropod abundance and richness in such certified and uncertified landscapes.
- We used pitfall trap data and soil samples across two seasons in large tea plantations, and small tea-growing agroforestry farms in the Darjeeling Himalayas in India. Plantations certified and those not certified were selected for the study.
- Soil arthropod morphospecies abundance, richness and diversity were significantly higher in summer as opposed to winter. Contrary to our expectations, there was no significant difference in soil arthropod abundance, richness and diversity between uncertified small agroforestry farms and certified large monoculture plantations. Our analysis establishes tree species richness and season as the most important predictors of soil arthropod abundance, richness and effective number of species.
- We recommend that increased abundance and diversity of native trees in the tea matrix should be a crucial criterion for agroecosystem management. This would improve matrix functionality for species that are sensitive to management and reflect practises that enhance biodiversity.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Open Research
DATA AVAILABILITY STATEMENT
We state that the data supporting the results of the study is available in https://github.com/Annesha-1/Main-Datasheet-and-Code.git which is an accessible but private database.
Supporting Information
| Filename | Description |
|---|---|
| icad12581-sup-0001-Supinfo.docxWord 2007 document , 121.1 KB | Appendix S1. Supporting Information |
| icad12581-sup-0002-TableS1.docxWord 2007 document , 14.1 KB | Table S1. Breakdown of tea plantations and agroforestry systems sampled based on ownership, management, Rainforest Alliance and Organic certification. The 98 sampling sites were selected from conventional plantations, certified Organic and Rainforest Alliance plantations, and not certified tea agroforestry systems. |
| icad12581-sup-0003-TableS2.docxWord 2007 document , 16.3 KB | Table S2. An overview of USDA Organic and Rainforest Alliance certification criteria and verification procedure |
| icad12581-sup-0004-TableS3.docxWord 2007 document , 13.3 KB | Table S3. Response variables tested against soil arthropod abundance, richness and effective number of species. The parameters in red denote those that were removed after Pearson's correlation test due to high correlation with other parameters (>70%). |
| icad12581-sup-0005-TableS4.docxWord 2007 document , 16.8 KB | Table S4. Description of grouping and response variables tested against soil arthropod abundance, richness and effective number of species and how they were measured. The parameter in * denotes those that were included after Pearson's correlation test was applied to remove variables due to high correlation with other parameters (>70%). |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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