Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia
In the Central Amazon we investigated whether seedling performance (survival, and relative growth rates in height and leaf numbers) was affected by initial seedling size (height and leaf numbers) in habitats that varied in their degree of human disturbance: cattle pasture, young secondary forest, 1-...
| Autor principal: | Benítez-Malvido, Julieta |
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| Outros Autores: | Martínez-Ramos, Miguel, Camargo, José Luís Campana, Ferraz, Isolde Dorothea Kossmann |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Tropical Ecology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18833 |
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oai:repositorio:1-18833 |
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dspace |
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oai:repositorio:1-18833 Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia Benítez-Malvido, Julieta Martínez-Ramos, Miguel Camargo, José Luís Campana Ferraz, Isolde Dorothea Kossmann Disturbance Growth Habitat Type Herbivory Photosynthetically Active Radiation Seedling Establishment Survival Transplantation Tropical Forest Amazonia South America Western Hemisphere World Bos Taurus Chrysophyllum Chrysophyllum Pomiferum Insecta Micropholis (angiosperm) Micropholis Venulosa Pouteria Pouteria Caimito Sapotaceae In the Central Amazon we investigated whether seedling performance (survival, and relative growth rates in height and leaf numbers) was affected by initial seedling size (height and leaf numbers) in habitats that varied in their degree of human disturbance: cattle pasture, young secondary forest, 1-ha forest fragment and old-growth forest. Additionally, effects of photosynthetically active radiation (PAR), litter standing crop (LSC) and insect herbivory were evaluated 12 mo after transplantation in seedlings from the native canopy trees Chrysophyllum pomiferum, Micropholis venulosa and Pouteria caimito. Seedling performance changed rank across the understorey environment depending on species. Seedlings of Chrysophyllum thrived in all conditions but under high PAR, Micropholis thrived only in intermediate light conditions, whereas Pouteria thrived under high PAR. Effects of initial seedling size, PAR and herbivory after 1 y were specific to species, whereas LSC had no effect on performance. Initially larger seedlings resulted in lower survival for Chrysophyllum and Pouteria. Herbivory affected seedling performance in all species. Negative effects of herbivory were intensified under low PAR. Overall, our results showed that, as seedlings, species of the same family and characteristic of old-growth forests respond differently to the environmental constraints present in contrasting human-disturbed conditions. Larger seedlings may not always present greater tolerance to physical and biotic mortality risks. Copyright © 2005 Cambridge University Press. 2020-06-15T22:03:19Z 2020-06-15T22:03:19Z 2005 Artigo https://repositorio.inpa.gov.br/handle/1/18833 10.1017/S0266467405002439 en Volume 21, Número 4, Pags. 397-406 Restrito Journal of Tropical Ecology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Disturbance Growth Habitat Type Herbivory Photosynthetically Active Radiation Seedling Establishment Survival Transplantation Tropical Forest Amazonia South America Western Hemisphere World Bos Taurus Chrysophyllum Chrysophyllum Pomiferum Insecta Micropholis (angiosperm) Micropholis Venulosa Pouteria Pouteria Caimito Sapotaceae |
| spellingShingle |
Disturbance Growth Habitat Type Herbivory Photosynthetically Active Radiation Seedling Establishment Survival Transplantation Tropical Forest Amazonia South America Western Hemisphere World Bos Taurus Chrysophyllum Chrysophyllum Pomiferum Insecta Micropholis (angiosperm) Micropholis Venulosa Pouteria Pouteria Caimito Sapotaceae Benítez-Malvido, Julieta Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| topic_facet |
Disturbance Growth Habitat Type Herbivory Photosynthetically Active Radiation Seedling Establishment Survival Transplantation Tropical Forest Amazonia South America Western Hemisphere World Bos Taurus Chrysophyllum Chrysophyllum Pomiferum Insecta Micropholis (angiosperm) Micropholis Venulosa Pouteria Pouteria Caimito Sapotaceae |
| description |
In the Central Amazon we investigated whether seedling performance (survival, and relative growth rates in height and leaf numbers) was affected by initial seedling size (height and leaf numbers) in habitats that varied in their degree of human disturbance: cattle pasture, young secondary forest, 1-ha forest fragment and old-growth forest. Additionally, effects of photosynthetically active radiation (PAR), litter standing crop (LSC) and insect herbivory were evaluated 12 mo after transplantation in seedlings from the native canopy trees Chrysophyllum pomiferum, Micropholis venulosa and Pouteria caimito. Seedling performance changed rank across the understorey environment depending on species. Seedlings of Chrysophyllum thrived in all conditions but under high PAR, Micropholis thrived only in intermediate light conditions, whereas Pouteria thrived under high PAR. Effects of initial seedling size, PAR and herbivory after 1 y were specific to species, whereas LSC had no effect on performance. Initially larger seedlings resulted in lower survival for Chrysophyllum and Pouteria. Herbivory affected seedling performance in all species. Negative effects of herbivory were intensified under low PAR. Overall, our results showed that, as seedlings, species of the same family and characteristic of old-growth forests respond differently to the environmental constraints present in contrasting human-disturbed conditions. Larger seedlings may not always present greater tolerance to physical and biotic mortality risks. Copyright © 2005 Cambridge University Press. |
| format |
Artigo |
| author |
Benítez-Malvido, Julieta |
| author2 |
Martínez-Ramos, Miguel Camargo, José Luís Campana Ferraz, Isolde Dorothea Kossmann |
| author2Str |
Martínez-Ramos, Miguel Camargo, José Luís Campana Ferraz, Isolde Dorothea Kossmann |
| title |
Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| title_short |
Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| title_full |
Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| title_fullStr |
Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| title_full_unstemmed |
Responses of seedling transplants to environmental variations in contrasting habitats of Central Amazonia |
| title_sort |
responses of seedling transplants to environmental variations in contrasting habitats of central amazonia |
| publisher |
Journal of Tropical Ecology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18833 |
| _version_ |
1787143750014730240 |
| score |
11.755432 |