Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship
Rapid global biodiversity loss and increasing emerging infectious diseases underscore the significance of identifying the diversity-disease relationship. Although experimental evidence supports the existence of dilution effects in several natural ecosystems, we still know very little about the condi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-10-01
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| Series: | Frontiers in Ecology and Evolution |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2022.1032931/full |
| _version_ | 1811181365518925824 |
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| author | Lifan Chen Lifan Chen Ping Kong Liying Hou Yanli Zhou Liang Zhou |
| author_facet | Lifan Chen Lifan Chen Ping Kong Liying Hou Yanli Zhou Liang Zhou |
| author_sort | Lifan Chen |
| collection | DOAJ |
| description | Rapid global biodiversity loss and increasing emerging infectious diseases underscore the significance of identifying the diversity-disease relationship. Although experimental evidence supports the existence of dilution effects in several natural ecosystems, we still know very little about the conditions under which a dilution effect will occur. Using a multi-host Susceptible-Infected-Recovered model, we found when disease transmission was density-dependent, the diversity-disease relationship could exhibit an increasing, decreasing, or non-monotonic trend, which mainly depended on the patterns of community assembly. However, the combined effects of the host competence-abundance relationship and species extinction order may reverse or weaken this trend. In contrast, when disease transmission was frequency-dependent, the diversity-disease relationship only showed a decreasing trend, the host competence-abundance relationship and species extinction order did not alter this decreasing trend, but it could reduce the detectability of the dilution effect and affect disease prevalence. Overall, a combination of disease transmission mode, community assembly pattern, and host community composition determines the direction or strength of the diversity-disease relationship. Our work helps explain why previous studies came to different conclusions about the diversity-disease relationship and provides a deeper understanding of the pathogen transmission dynamics in actual communities. |
| first_indexed | 2024-04-11T09:16:35Z |
| format | Article |
| id | doaj.art-f100dadc46124c22bca44fa61b5ba1b2 |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-04-11T09:16:35Z |
| publishDate | 2022-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-f100dadc46124c22bca44fa61b5ba1b22022-12-22T04:32:20ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2022-10-011010.3389/fevo.2022.10329311032931Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationshipLifan Chen0Lifan Chen1Ping Kong2Liying Hou3Yanli Zhou4Liang Zhou5Collaborative Innovation Center for Biomedicine, Shanghai University of Medicine and Health Sciences, Shanghai, ChinaSchool of Arts and Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, ChinaJiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, ChinaSchool of Arts and Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, ChinaSchool of Arts and Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, ChinaJiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, ChinaRapid global biodiversity loss and increasing emerging infectious diseases underscore the significance of identifying the diversity-disease relationship. Although experimental evidence supports the existence of dilution effects in several natural ecosystems, we still know very little about the conditions under which a dilution effect will occur. Using a multi-host Susceptible-Infected-Recovered model, we found when disease transmission was density-dependent, the diversity-disease relationship could exhibit an increasing, decreasing, or non-monotonic trend, which mainly depended on the patterns of community assembly. However, the combined effects of the host competence-abundance relationship and species extinction order may reverse or weaken this trend. In contrast, when disease transmission was frequency-dependent, the diversity-disease relationship only showed a decreasing trend, the host competence-abundance relationship and species extinction order did not alter this decreasing trend, but it could reduce the detectability of the dilution effect and affect disease prevalence. Overall, a combination of disease transmission mode, community assembly pattern, and host community composition determines the direction or strength of the diversity-disease relationship. Our work helps explain why previous studies came to different conclusions about the diversity-disease relationship and provides a deeper understanding of the pathogen transmission dynamics in actual communities.https://www.frontiersin.org/articles/10.3389/fevo.2022.1032931/fulldisease riskdilution effectamplification effectcommunity disassemblyhost competencestochastic extinction |
| spellingShingle | Lifan Chen Lifan Chen Ping Kong Liying Hou Yanli Zhou Liang Zhou Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship Frontiers in Ecology and Evolution disease risk dilution effect amplification effect community disassembly host competence stochastic extinction |
| title | Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship |
| title_full | Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship |
| title_fullStr | Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship |
| title_full_unstemmed | Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship |
| title_short | Host community composition, community assembly pattern, and disease transmission mode jointly determine the direction and strength of the diversity-disease relationship |
| title_sort | host community composition community assembly pattern and disease transmission mode jointly determine the direction and strength of the diversity disease relationship |
| topic | disease risk dilution effect amplification effect community disassembly host competence stochastic extinction |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2022.1032931/full |
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