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Monitoring 2 REINFFORCE Network arboretums. Health status, growth and phenology
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Autores
Orientador(es)
Resumo(s)
Climate change is affecting plant and animal composition in forest ecosystems. Understanding how trees and insects are coping with climate change is most relevant to develop sustainable forest plantations, in the future. Using two REINFFORCE network arboretums, we aimed to analyse how different species and provenances are affected by abiotic and biotic damaging. Additionally, we also aimed to assess phenology influence on herbivory, having as model two Oak species, a native and an exotic, as well as their provenances.
In general, there were significant differences in survivorship from different species. However, it did not differ between coniferous and broadleaved species (p = 0.659). It differed at genus level, such as Pinus, where we observed a higher survivorship on natives when compared to exotics. This relation was not verified in oak species.
Discolouration was the main damage type verified in some species, in particular on Carob tree, Ceratonia siliqua, which suggests the presence of abiotic stressors, possibly linked to climate conditions and soil. Defoliation values were higher in two broadleaved genera, Quercus and Fagus. Lisbon arboretum had higher damaging and pests than Sintra arboretum, which might be related with the climate differences on both sites and also, the physiological and vegetative status of trees, which presented higher stamina in Sintra.
Overall, herbivore damaging was lesser in exotic species than native ones. In herbivory assessment from the two studied Oak species, along Spring season, it was shown that the native species Quercus robur suffered three times more damage, than the exotic species Quercus rubra. Additionally, we showed that herbivore damaging was directly related to phenology development from provenances, thus proving this factor influence
Descrição
Mestrado em Engenharia Florestal e dos Recursos Naturais / Instituto Superior de Agronomia. Universidade de Lisboa
Palavras-chave
exotic vs native survival herbivory phenology REINFFORCE
Contexto Educativo
Citação
Pinto, A.M. - Monitoring 2 REINFFORCE Network arboretums. Health status, growth and phenology. Lisboa: ISA, 2020, 53 p.