Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests
Understanding the mechanisms that promote the coexistence of hundreds of species over small areas in tropical forest remains a challenge. Many tropical tree species are presumed to be functionally equivalent shade tolerant species but exist on a continuum of performance trade‐offs between survival i...
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creator | Metz, Margaret R. Wright, S. Joseph Zimmerman, Jess K. Hernandéz, Andrés Smith, Samuel M. Swenson, Nathan G. Umaña, M. Natalia Valencia, L. Renato Waring‐Enriquez, Ina Wordell, Mason Zambrano, Milton Garwood, Nancy C. |
description | Understanding the mechanisms that promote the coexistence of hundreds of species over small areas in tropical forest remains a challenge. Many tropical tree species are presumed to be functionally equivalent shade tolerant species but exist on a continuum of performance trade‐offs between survival in shade and the ability to quickly grow in sunlight. These trade‐offs can promote coexistence by reducing fitness differences.
Variation in plant functional traits related to resource acquisition is thought to predict variation in performance among species, perhaps explaining community assembly across habitats with gradients in resource availability. Many studies have found low predictive power, however, when linking trait measurements to species demographic rates.
Seedlings face different challenges recruiting on the forest floor and may exhibit different traits and/or performance trade‐offs than older individuals face in the eventual adult niche. Seed mass is the typical proxy for seedling success, but species also differ in cotyledon strategy (reserve vs. photosynthetic) or other leaf, stem and root traits. These can cause species with the same average seed mass to have divergent performance in the same habitat.
We combined long‐term studies of seedling dynamics with functional trait data collected at a standard life‐history stage in three diverse neotropical forests to ask whether variation in coordinated suites of traits predicts variation among species in demographic performance.
Across hundreds of species in Ecuador, Panama and Puerto Rico, we found seedlings displayed correlated suites of leaf, stem, and root traits, which strongly correlated with seed mass and cotyledon strategy. Variation among species in seedling functional traits, seed mass, and cotyledon strategy were strong predictors of trade‐offs in seedling growth and survival. These results underscore the importance of matching the ontogenetic stage of the trait measurement to the stage of demographic dynamics.
Our findings highlight the importance of cotyledon strategy in addition to seed mass as a key component of seed and seedling biology in tropical forests because of the contribution of carbon reserves in storage cotyledons to reducing mortality rates and explaining the growth‐survival trade‐off among species.
Synthesis: With strikingly consistent patterns across three tropical forests, we find strong evidence for the promise of functional traits to provide mechanistic links between seedli |
doi_str_mv | 10.1111/1365-2745.14195 |
format | Article |
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Variation in plant functional traits related to resource acquisition is thought to predict variation in performance among species, perhaps explaining community assembly across habitats with gradients in resource availability. Many studies have found low predictive power, however, when linking trait measurements to species demographic rates.
Seedlings face different challenges recruiting on the forest floor and may exhibit different traits and/or performance trade‐offs than older individuals face in the eventual adult niche. Seed mass is the typical proxy for seedling success, but species also differ in cotyledon strategy (reserve vs. photosynthetic) or other leaf, stem and root traits. These can cause species with the same average seed mass to have divergent performance in the same habitat.
We combined long‐term studies of seedling dynamics with functional trait data collected at a standard life‐history stage in three diverse neotropical forests to ask whether variation in coordinated suites of traits predicts variation among species in demographic performance.
Across hundreds of species in Ecuador, Panama and Puerto Rico, we found seedlings displayed correlated suites of leaf, stem, and root traits, which strongly correlated with seed mass and cotyledon strategy. Variation among species in seedling functional traits, seed mass, and cotyledon strategy were strong predictors of trade‐offs in seedling growth and survival. These results underscore the importance of matching the ontogenetic stage of the trait measurement to the stage of demographic dynamics.
Our findings highlight the importance of cotyledon strategy in addition to seed mass as a key component of seed and seedling biology in tropical forests because of the contribution of carbon reserves in storage cotyledons to reducing mortality rates and explaining the growth‐survival trade‐off among species.
Synthesis: With strikingly consistent patterns across three tropical forests, we find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.
Resumen
La comprensión de los mecanismos que promueven la coexistencia de cientos de especies en pequeñas áreas de bosque tropical sigue siendo un desafío. Se asume que muchas especies de árboles tropicales son especies tolerantes a la sombra y funcionalmente equivalentes, pero en realidad existen en un continuo entre la habilidad de supervivencia a la sombra y la habilidad de crecer rápidamente a la luz del sol. Este continuo regulado por una relación de costo/beneficio puede promover la coexistencia al reducir las diferencias de aptitud.
Se cree que la variación en los rasgos funcionales de las plantas relacionados con la adquisición de recursos predice la variación en el rendimiento entre las especies, lo que quizás explica el ensamblaje de la comunidad en todos los hábitats con gradientes en la disponibilidad de recursos. Sin embargo, muchos estudios han encontrado un poder predictivo bajo al vincular las mediciones de rasgos funcionales con las tasas demográficas de las especies.
Las plántulas se enfrentan a diferentes desafíos para establecerse en el suelo del bosque y pueden exhibir características o habilidades diferentes a las que enfrentan los individuos mayores en el nicho eventual de adultos. La masa de semillas es el indicador típico del éxito de las plántulas, pero las especies también difieren en la estrategia de cotiledón (reserva vs. fotosíntesis) u otras características de hojas, tallos y raíces. Esto puede causar que las especies con la misma masa promedio de semillas tengan un desempeño divergente en el mismo hábitat.
Se combinaron estudios a largo plazo de la dinámica de las plántulas con datos de rasgos funcionales recopilados en una etapa equivalente de la historia de vida en tres bosques neotropicales diversos para preguntar si la variación en rasgos funcionales combinados entre sí predice la variación en el desempeño demográfico de las especies.
En cientos de especies en Ecuador, Panamá y Puerto Rico, encontramos plántulas que mostraban conjuntos correlacionados de características de hojas, tallos y raíces, que se correlacionaban fuertemente con la masa de semillas y la estrategia de cotiledón. La variación entre especies en los rasgos funcionales de las plántulas, la masa de semillas y la estrategia de cotiledón fueron buenos predictores del crecimiento y la supervivencia de las plántulas. Estos resultados subrayan la importancia de hacer coincidir la etapa ontogenética de la medición del rasgo con la etapa de la dinámica demográfica.
Nuestros hallazgos resaltan la importancia de la estrategia de los cotiledones además de la masa de la semilla como un componente clave de la biología de las semillas y las plántulas en los bosques tropicales. La contribución de las reservas de carbono en los cotiledones de almacenamiento reduce las tasas de mortalidad y explica la compensación entre el crecimiento y la supervivencia entre especies.
Síntesis: Con patrones sorprendentemente consistentes en tres bosques tropicales, encontramos una fuerte evidencia de que los rasgos funcionales prometen proporcionar vínculos mecánicos entre la forma de las plántulas y su desempeño demográfico.
With strikingly consistent patterns across three tropical forests, the authors find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.</description><identifier>ISSN: 0022-0477</identifier><identifier>EISSN: 1365-2745</identifier><identifier>DOI: 10.1111/1365-2745.14195</identifier><language>eng</language><publisher>Oxford: Blackwell Publishing Ltd</publisher><subject>advanced regeneration ; Barro Colorado Island ; Biology ; Coexistence ; Cotyledons ; Demographics ; Demography ; Divergence ; Equivalence ; Forest floor ; Forests ; Habitats ; Leaves ; Luquillo ; Mass ; Ontogeny ; Photosynthesis ; Plant species ; Resource availability ; seedling growth ; seedling survival ; Seedlings ; Seeds ; Shade ; Species ; Stems ; Survival ; Tropical forests ; Variation ; Yasuní</subject><ispartof>The Journal of ecology, 2023-12, Vol.111 (12), p.2568-2582</ispartof><rights>2023 The Authors. published by John Wiley & Sons Ltd on behalf of British Ecological Society.</rights><rights>2023. This article is published under http://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c3105-bd87e5612fe8175e232f3955cd3179217780aaaf698cf222beb0fc0cefce25c13</cites><orcidid>0000-0002-4221-7318 ; 0000-0001-9770-6568 ; 0000-0003-4260-5676 ; 0000-0001-7400-2736 ; 0000-0003-3819-9767 ; 0000-0001-5876-7720</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2F1365-2745.14195$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2F1365-2745.14195$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Metz, Margaret R.</creatorcontrib><creatorcontrib>Wright, S. Joseph</creatorcontrib><creatorcontrib>Zimmerman, Jess K.</creatorcontrib><creatorcontrib>Hernandéz, Andrés</creatorcontrib><creatorcontrib>Smith, Samuel M.</creatorcontrib><creatorcontrib>Swenson, Nathan G.</creatorcontrib><creatorcontrib>Umaña, M. Natalia</creatorcontrib><creatorcontrib>Valencia, L. Renato</creatorcontrib><creatorcontrib>Waring‐Enriquez, Ina</creatorcontrib><creatorcontrib>Wordell, Mason</creatorcontrib><creatorcontrib>Zambrano, Milton</creatorcontrib><creatorcontrib>Garwood, Nancy C.</creatorcontrib><title>Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests</title><title>The Journal of ecology</title><description>Understanding the mechanisms that promote the coexistence of hundreds of species over small areas in tropical forest remains a challenge. Many tropical tree species are presumed to be functionally equivalent shade tolerant species but exist on a continuum of performance trade‐offs between survival in shade and the ability to quickly grow in sunlight. These trade‐offs can promote coexistence by reducing fitness differences.
Variation in plant functional traits related to resource acquisition is thought to predict variation in performance among species, perhaps explaining community assembly across habitats with gradients in resource availability. Many studies have found low predictive power, however, when linking trait measurements to species demographic rates.
Seedlings face different challenges recruiting on the forest floor and may exhibit different traits and/or performance trade‐offs than older individuals face in the eventual adult niche. Seed mass is the typical proxy for seedling success, but species also differ in cotyledon strategy (reserve vs. photosynthetic) or other leaf, stem and root traits. These can cause species with the same average seed mass to have divergent performance in the same habitat.
We combined long‐term studies of seedling dynamics with functional trait data collected at a standard life‐history stage in three diverse neotropical forests to ask whether variation in coordinated suites of traits predicts variation among species in demographic performance.
Across hundreds of species in Ecuador, Panama and Puerto Rico, we found seedlings displayed correlated suites of leaf, stem, and root traits, which strongly correlated with seed mass and cotyledon strategy. Variation among species in seedling functional traits, seed mass, and cotyledon strategy were strong predictors of trade‐offs in seedling growth and survival. These results underscore the importance of matching the ontogenetic stage of the trait measurement to the stage of demographic dynamics.
Our findings highlight the importance of cotyledon strategy in addition to seed mass as a key component of seed and seedling biology in tropical forests because of the contribution of carbon reserves in storage cotyledons to reducing mortality rates and explaining the growth‐survival trade‐off among species.
Synthesis: With strikingly consistent patterns across three tropical forests, we find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.
Resumen
La comprensión de los mecanismos que promueven la coexistencia de cientos de especies en pequeñas áreas de bosque tropical sigue siendo un desafío. Se asume que muchas especies de árboles tropicales son especies tolerantes a la sombra y funcionalmente equivalentes, pero en realidad existen en un continuo entre la habilidad de supervivencia a la sombra y la habilidad de crecer rápidamente a la luz del sol. Este continuo regulado por una relación de costo/beneficio puede promover la coexistencia al reducir las diferencias de aptitud.
Se cree que la variación en los rasgos funcionales de las plantas relacionados con la adquisición de recursos predice la variación en el rendimiento entre las especies, lo que quizás explica el ensamblaje de la comunidad en todos los hábitats con gradientes en la disponibilidad de recursos. Sin embargo, muchos estudios han encontrado un poder predictivo bajo al vincular las mediciones de rasgos funcionales con las tasas demográficas de las especies.
Las plántulas se enfrentan a diferentes desafíos para establecerse en el suelo del bosque y pueden exhibir características o habilidades diferentes a las que enfrentan los individuos mayores en el nicho eventual de adultos. La masa de semillas es el indicador típico del éxito de las plántulas, pero las especies también difieren en la estrategia de cotiledón (reserva vs. fotosíntesis) u otras características de hojas, tallos y raíces. Esto puede causar que las especies con la misma masa promedio de semillas tengan un desempeño divergente en el mismo hábitat.
Se combinaron estudios a largo plazo de la dinámica de las plántulas con datos de rasgos funcionales recopilados en una etapa equivalente de la historia de vida en tres bosques neotropicales diversos para preguntar si la variación en rasgos funcionales combinados entre sí predice la variación en el desempeño demográfico de las especies.
En cientos de especies en Ecuador, Panamá y Puerto Rico, encontramos plántulas que mostraban conjuntos correlacionados de características de hojas, tallos y raíces, que se correlacionaban fuertemente con la masa de semillas y la estrategia de cotiledón. La variación entre especies en los rasgos funcionales de las plántulas, la masa de semillas y la estrategia de cotiledón fueron buenos predictores del crecimiento y la supervivencia de las plántulas. Estos resultados subrayan la importancia de hacer coincidir la etapa ontogenética de la medición del rasgo con la etapa de la dinámica demográfica.
Nuestros hallazgos resaltan la importancia de la estrategia de los cotiledones además de la masa de la semilla como un componente clave de la biología de las semillas y las plántulas en los bosques tropicales. La contribución de las reservas de carbono en los cotiledones de almacenamiento reduce las tasas de mortalidad y explica la compensación entre el crecimiento y la supervivencia entre especies.
Síntesis: Con patrones sorprendentemente consistentes en tres bosques tropicales, encontramos una fuerte evidencia de que los rasgos funcionales prometen proporcionar vínculos mecánicos entre la forma de las plántulas y su desempeño demográfico.
With strikingly consistent patterns across three tropical forests, the authors find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.</description><subject>advanced regeneration</subject><subject>Barro Colorado Island</subject><subject>Biology</subject><subject>Coexistence</subject><subject>Cotyledons</subject><subject>Demographics</subject><subject>Demography</subject><subject>Divergence</subject><subject>Equivalence</subject><subject>Forest floor</subject><subject>Forests</subject><subject>Habitats</subject><subject>Leaves</subject><subject>Luquillo</subject><subject>Mass</subject><subject>Ontogeny</subject><subject>Photosynthesis</subject><subject>Plant species</subject><subject>Resource availability</subject><subject>seedling growth</subject><subject>seedling survival</subject><subject>Seedlings</subject><subject>Seeds</subject><subject>Shade</subject><subject>Species</subject><subject>Stems</subject><subject>Survival</subject><subject>Tropical forests</subject><subject>Variation</subject><subject>Yasuní</subject><issn>0022-0477</issn><issn>1365-2745</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><recordid>eNqFkMtOwzAQRS0EEuWxZmuJdVrbqWNniaqWhyqxgbXlOuPiKrWDnQh1xyfwjXwJCUHdMpuRZs69o7kI3VAypX3NaF7wjIk5n9I5LfkJmhwnp2hCCGMZmQtxji5S2hFCCsHJBPlV503rgtc1bqN2bcLB4kPo_BYngKp2fptwE6Fyph2ICr4_v4K1CTt_JHAD0Ya4197AMG_fIgD2ENoYGmd6734LqU1X6MzqOsH1X79Er6vly-IhWz_fPy7u1pnJKeHZppICeEGZBUkFB5Yzm5ecmyqnomRUCEm01rYopbGMsQ1siDXEgDXAuKH5JbodfZsY3rv-stqFLvZPJsVkKZmUnOc9NRspE0NKEaxqotvreFCUqCFUNUSohgjVb6i9go-KD1fD4T9cPS0Xo-4HyD574A</recordid><startdate>202312</startdate><enddate>202312</enddate><creator>Metz, Margaret R.</creator><creator>Wright, S. Joseph</creator><creator>Zimmerman, Jess K.</creator><creator>Hernandéz, Andrés</creator><creator>Smith, Samuel M.</creator><creator>Swenson, Nathan G.</creator><creator>Umaña, M. Natalia</creator><creator>Valencia, L. Renato</creator><creator>Waring‐Enriquez, Ina</creator><creator>Wordell, Mason</creator><creator>Zambrano, Milton</creator><creator>Garwood, Nancy C.</creator><general>Blackwell Publishing Ltd</general><scope>24P</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-4221-7318</orcidid><orcidid>https://orcid.org/0000-0001-9770-6568</orcidid><orcidid>https://orcid.org/0000-0003-4260-5676</orcidid><orcidid>https://orcid.org/0000-0001-7400-2736</orcidid><orcidid>https://orcid.org/0000-0003-3819-9767</orcidid><orcidid>https://orcid.org/0000-0001-5876-7720</orcidid></search><sort><creationdate>202312</creationdate><title>Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests</title><author>Metz, Margaret R. ; Wright, S. Joseph ; Zimmerman, Jess K. ; Hernandéz, Andrés ; Smith, Samuel M. ; Swenson, Nathan G. ; Umaña, M. Natalia ; Valencia, L. Renato ; Waring‐Enriquez, Ina ; Wordell, Mason ; Zambrano, Milton ; Garwood, Nancy C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3105-bd87e5612fe8175e232f3955cd3179217780aaaf698cf222beb0fc0cefce25c13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>advanced regeneration</topic><topic>Barro Colorado Island</topic><topic>Biology</topic><topic>Coexistence</topic><topic>Cotyledons</topic><topic>Demographics</topic><topic>Demography</topic><topic>Divergence</topic><topic>Equivalence</topic><topic>Forest floor</topic><topic>Forests</topic><topic>Habitats</topic><topic>Leaves</topic><topic>Luquillo</topic><topic>Mass</topic><topic>Ontogeny</topic><topic>Photosynthesis</topic><topic>Plant species</topic><topic>Resource availability</topic><topic>seedling growth</topic><topic>seedling survival</topic><topic>Seedlings</topic><topic>Seeds</topic><topic>Shade</topic><topic>Species</topic><topic>Stems</topic><topic>Survival</topic><topic>Tropical forests</topic><topic>Variation</topic><topic>Yasuní</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Metz, Margaret R.</creatorcontrib><creatorcontrib>Wright, S. Joseph</creatorcontrib><creatorcontrib>Zimmerman, Jess K.</creatorcontrib><creatorcontrib>Hernandéz, Andrés</creatorcontrib><creatorcontrib>Smith, Samuel M.</creatorcontrib><creatorcontrib>Swenson, Nathan G.</creatorcontrib><creatorcontrib>Umaña, M. Natalia</creatorcontrib><creatorcontrib>Valencia, L. Renato</creatorcontrib><creatorcontrib>Waring‐Enriquez, Ina</creatorcontrib><creatorcontrib>Wordell, Mason</creatorcontrib><creatorcontrib>Zambrano, Milton</creatorcontrib><creatorcontrib>Garwood, Nancy C.</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><jtitle>The Journal of ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Metz, Margaret R.</au><au>Wright, S. Joseph</au><au>Zimmerman, Jess K.</au><au>Hernandéz, Andrés</au><au>Smith, Samuel M.</au><au>Swenson, Nathan G.</au><au>Umaña, M. Natalia</au><au>Valencia, L. Renato</au><au>Waring‐Enriquez, Ina</au><au>Wordell, Mason</au><au>Zambrano, Milton</au><au>Garwood, Nancy C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests</atitle><jtitle>The Journal of ecology</jtitle><date>2023-12</date><risdate>2023</risdate><volume>111</volume><issue>12</issue><spage>2568</spage><epage>2582</epage><pages>2568-2582</pages><issn>0022-0477</issn><eissn>1365-2745</eissn><abstract>Understanding the mechanisms that promote the coexistence of hundreds of species over small areas in tropical forest remains a challenge. Many tropical tree species are presumed to be functionally equivalent shade tolerant species but exist on a continuum of performance trade‐offs between survival in shade and the ability to quickly grow in sunlight. These trade‐offs can promote coexistence by reducing fitness differences.
Variation in plant functional traits related to resource acquisition is thought to predict variation in performance among species, perhaps explaining community assembly across habitats with gradients in resource availability. Many studies have found low predictive power, however, when linking trait measurements to species demographic rates.
Seedlings face different challenges recruiting on the forest floor and may exhibit different traits and/or performance trade‐offs than older individuals face in the eventual adult niche. Seed mass is the typical proxy for seedling success, but species also differ in cotyledon strategy (reserve vs. photosynthetic) or other leaf, stem and root traits. These can cause species with the same average seed mass to have divergent performance in the same habitat.
We combined long‐term studies of seedling dynamics with functional trait data collected at a standard life‐history stage in three diverse neotropical forests to ask whether variation in coordinated suites of traits predicts variation among species in demographic performance.
Across hundreds of species in Ecuador, Panama and Puerto Rico, we found seedlings displayed correlated suites of leaf, stem, and root traits, which strongly correlated with seed mass and cotyledon strategy. Variation among species in seedling functional traits, seed mass, and cotyledon strategy were strong predictors of trade‐offs in seedling growth and survival. These results underscore the importance of matching the ontogenetic stage of the trait measurement to the stage of demographic dynamics.
Our findings highlight the importance of cotyledon strategy in addition to seed mass as a key component of seed and seedling biology in tropical forests because of the contribution of carbon reserves in storage cotyledons to reducing mortality rates and explaining the growth‐survival trade‐off among species.
Synthesis: With strikingly consistent patterns across three tropical forests, we find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.
Resumen
La comprensión de los mecanismos que promueven la coexistencia de cientos de especies en pequeñas áreas de bosque tropical sigue siendo un desafío. Se asume que muchas especies de árboles tropicales son especies tolerantes a la sombra y funcionalmente equivalentes, pero en realidad existen en un continuo entre la habilidad de supervivencia a la sombra y la habilidad de crecer rápidamente a la luz del sol. Este continuo regulado por una relación de costo/beneficio puede promover la coexistencia al reducir las diferencias de aptitud.
Se cree que la variación en los rasgos funcionales de las plantas relacionados con la adquisición de recursos predice la variación en el rendimiento entre las especies, lo que quizás explica el ensamblaje de la comunidad en todos los hábitats con gradientes en la disponibilidad de recursos. Sin embargo, muchos estudios han encontrado un poder predictivo bajo al vincular las mediciones de rasgos funcionales con las tasas demográficas de las especies.
Las plántulas se enfrentan a diferentes desafíos para establecerse en el suelo del bosque y pueden exhibir características o habilidades diferentes a las que enfrentan los individuos mayores en el nicho eventual de adultos. La masa de semillas es el indicador típico del éxito de las plántulas, pero las especies también difieren en la estrategia de cotiledón (reserva vs. fotosíntesis) u otras características de hojas, tallos y raíces. Esto puede causar que las especies con la misma masa promedio de semillas tengan un desempeño divergente en el mismo hábitat.
Se combinaron estudios a largo plazo de la dinámica de las plántulas con datos de rasgos funcionales recopilados en una etapa equivalente de la historia de vida en tres bosques neotropicales diversos para preguntar si la variación en rasgos funcionales combinados entre sí predice la variación en el desempeño demográfico de las especies.
En cientos de especies en Ecuador, Panamá y Puerto Rico, encontramos plántulas que mostraban conjuntos correlacionados de características de hojas, tallos y raíces, que se correlacionaban fuertemente con la masa de semillas y la estrategia de cotiledón. La variación entre especies en los rasgos funcionales de las plántulas, la masa de semillas y la estrategia de cotiledón fueron buenos predictores del crecimiento y la supervivencia de las plántulas. Estos resultados subrayan la importancia de hacer coincidir la etapa ontogenética de la medición del rasgo con la etapa de la dinámica demográfica.
Nuestros hallazgos resaltan la importancia de la estrategia de los cotiledones además de la masa de la semilla como un componente clave de la biología de las semillas y las plántulas en los bosques tropicales. La contribución de las reservas de carbono en los cotiledones de almacenamiento reduce las tasas de mortalidad y explica la compensación entre el crecimiento y la supervivencia entre especies.
Síntesis: Con patrones sorprendentemente consistentes en tres bosques tropicales, encontramos una fuerte evidencia de que los rasgos funcionales prometen proporcionar vínculos mecánicos entre la forma de las plántulas y su desempeño demográfico.
With strikingly consistent patterns across three tropical forests, the authors find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance.</abstract><cop>Oxford</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/1365-2745.14195</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-4221-7318</orcidid><orcidid>https://orcid.org/0000-0001-9770-6568</orcidid><orcidid>https://orcid.org/0000-0003-4260-5676</orcidid><orcidid>https://orcid.org/0000-0001-7400-2736</orcidid><orcidid>https://orcid.org/0000-0003-3819-9767</orcidid><orcidid>https://orcid.org/0000-0001-5876-7720</orcidid><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0022-0477 |
ispartof | The Journal of ecology, 2023-12, Vol.111 (12), p.2568-2582 |
issn | 0022-0477 1365-2745 |
language | eng |
recordid | cdi_proquest_journals_2898288553 |
source | Wiley Online Library Journals Frontfile Complete |
subjects | advanced regeneration Barro Colorado Island Biology Coexistence Cotyledons Demographics Demography Divergence Equivalence Forest floor Forests Habitats Leaves Luquillo Mass Ontogeny Photosynthesis Plant species Resource availability seedling growth seedling survival Seedlings Seeds Shade Species Stems Survival Tropical forests Variation Yasuní |
title | Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T01%3A52%3A24IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Functional%20traits%20of%20young%20seedlings%20predict%20trade%E2%80%90offs%20in%20seedling%20performance%20in%20three%20neotropical%20forests&rft.jtitle=The%20Journal%20of%20ecology&rft.au=Metz,%20Margaret%20R.&rft.date=2023-12&rft.volume=111&rft.issue=12&rft.spage=2568&rft.epage=2582&rft.pages=2568-2582&rft.issn=0022-0477&rft.eissn=1365-2745&rft_id=info:doi/10.1111/1365-2745.14195&rft_dat=%3Cproquest_cross%3E2898288553%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2898288553&rft_id=info:pmid/&rfr_iscdi=true |