Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes
Predation is a biological interaction that influences demographic patterns by modifying community structure. In the current ecological crisis, there is a need to better understand the conditions of coexistence between predators, prey and their resources. The body size is considered a key feature to...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2022.821176/full |
| _version_ | 1818216946432212992 |
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| author | William Campillay-Llanos William Campillay-Llanos William Campillay-Llanos Fernando D. Córdova-Lepe Felipe N. Moreno-Gómez |
| author_facet | William Campillay-Llanos William Campillay-Llanos William Campillay-Llanos Fernando D. Córdova-Lepe Felipe N. Moreno-Gómez |
| author_sort | William Campillay-Llanos |
| collection | DOAJ |
| description | Predation is a biological interaction that influences demographic patterns by modifying community structure. In the current ecological crisis, there is a need to better understand the conditions of coexistence between predators, prey and their resources. The body size is considered a key feature to explain community-scale phenomena, energetic, and evolutionary constraints. This raises the question of how species body size directly or indirectly affects the demographic patterns that enable coexistence. Considering the above, we conducted a theoretical study that implements a Rosenzweig-MacArthur type model, which represents a three-level chain that integrates body sizes and includes a Holling type I functional response. In this model, we characterize coexistence through body size-dependent net reproductive rates. Our results suggest that the body sizes of consumer species strongly affect the size-density relations and energy requirements. We obtain the negative relationship between body size and density of intermediate consumers and discuss the energy equivalence rule. Furthermore, larger predators have a more significant impact on the intensity of the trophic cascade than smaller predators. Finally, we discuss potential extensions and applications of our modeling approach. |
| first_indexed | 2024-12-12T07:00:03Z |
| format | Article |
| id | doaj.art-e0da74343d024eb6896b1a44a5f7cfeb |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-12-12T07:00:03Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-e0da74343d024eb6896b1a44a5f7cfeb2022-12-22T00:33:52ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2022-06-011010.3389/fevo.2022.821176821176Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body SizesWilliam Campillay-Llanos0William Campillay-Llanos1William Campillay-Llanos2Fernando D. Córdova-Lepe3Felipe N. Moreno-Gómez4Instituto de Investigación Interdisciplinaria (I 3), Universidad de Talca, Talca, ChileFaculty of Agricultural Sciences, Research and Extension Center for Irrigation and Agroclimatology (CITRA), Universidad de Talca, Talca, ChileDoctorado en Modelamiento Matemático Aplicado, Universidad Católica del Maule, Talca, ChileFacultad de Ciencias Básicas, Universidad Católica del Maule, Talca, ChileDepartamento de Biología y Química, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca, ChilePredation is a biological interaction that influences demographic patterns by modifying community structure. In the current ecological crisis, there is a need to better understand the conditions of coexistence between predators, prey and their resources. The body size is considered a key feature to explain community-scale phenomena, energetic, and evolutionary constraints. This raises the question of how species body size directly or indirectly affects the demographic patterns that enable coexistence. Considering the above, we conducted a theoretical study that implements a Rosenzweig-MacArthur type model, which represents a three-level chain that integrates body sizes and includes a Holling type I functional response. In this model, we characterize coexistence through body size-dependent net reproductive rates. Our results suggest that the body sizes of consumer species strongly affect the size-density relations and energy requirements. We obtain the negative relationship between body size and density of intermediate consumers and discuss the energy equivalence rule. Furthermore, larger predators have a more significant impact on the intensity of the trophic cascade than smaller predators. Finally, we discuss potential extensions and applications of our modeling approach.https://www.frontiersin.org/articles/10.3389/fevo.2022.821176/fullcommunity structurefood chainpopulation densitycoexistenceenergy usetrophic cascade |
| spellingShingle | William Campillay-Llanos William Campillay-Llanos William Campillay-Llanos Fernando D. Córdova-Lepe Felipe N. Moreno-Gómez Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes Frontiers in Ecology and Evolution community structure food chain population density coexistence energy use trophic cascade |
| title | Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes |
| title_full | Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes |
| title_fullStr | Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes |
| title_full_unstemmed | Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes |
| title_short | Coexistence, Energy, and Trophic Cascade in a Three-Level Food Chain Integrating Body Sizes |
| title_sort | coexistence energy and trophic cascade in a three level food chain integrating body sizes |
| topic | community structure food chain population density coexistence energy use trophic cascade |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2022.821176/full |
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