H2020Индивидуална стипендия2017–2018

CCPaMe · Direct and indirect effects of Climate Change on biotic communities and exotic Pathogens in mixed Mediterranean forests

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-01-01 → 2018-12-31
Финансиране от ЕС: 170 122 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Влиянието на климатичните промени върху разпространението на патогена Phytophthora cinnamomi се проучва чрез взаимодействието му с дъбове и диви маслини. Това помага да се разбере как промените в средата застрашават биоразнообразието и оцеляването на смесените средиземноморски гори.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Direct and indirect effects of Climate Change on biotic communities and exotic Pathogens in mixed Mediterranean forests

Mixed oak forest and rangeland ecosystems are the most representative ecosystems of the Mediterranean Basin. However, their persistence has been seriously threatened by Global Change. It is a complex phenomenon that involves several factors, highlighting climate change and biological invasions. Although each of these factors has been individually studied in detail in the last years, it is still poorly known how they could interact to affect biotic communities and the ecosystems processes that they control. CCPaMe aimed to elucidate the effects of climate change on biotic communities and their interactions with the invasive pathogen Phytophthora cinnamomi which is killing thousands of Quercus in Mediterranean forest systems. Three lines of research were pursued: 1) a study of the direct effects of climate change on P. cinnamomi population in field conditions; 2) an investigation of the interaction between tree species coexistence and climate change on different aspects of P. cinnamomi life cycle and 3) an investigation of the indirect effect of climate change on the soil biotic community and its interaction with P. cinnamomi infectivity. CCPaMe has accomplished these goals by a multidisciplinary approach by combining ecology, pathology and forestry. By means of several experiments in growth chambers and in field conditions using different infrastructures of climate change simulation, CCPaMe has generated several key results which supported the following conclusion: 1) Olea europaea var. sylvestris is susceptible to P. cinnamomi, also encouraging the production of resistant spores; 2) O. europaea var. sylvestris and Quercus canariensis induced autogamy of P. cinnamomi: 3) coexistent tree species of mixed Mediterranean forests negatively influence the epidemiology of the root disease: 4) in field, the highest P. cinnamomi population densities were recorded during spring regardless to the annual precipitation range and the climate change effect: 4) the most risk season for P. cinnamomi introduction is at the end of summer, when soil conditions were more favorable to the production of infective zoospores. So, as a main conclusion, our results do not support strong interactive effects of climate change and P. cinnamomi, however these two factors could act simultaneously limiting seedling performance, and seriously threaten the long-term conservation of Mediterranean forest ecosystems.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Global change is a complex phenomenon that involves several factors such as climate change, the alteration of the nitrogen cycle, biological invasions or changes in land use. Although each of these factors has been individually studied in detail in the last years, it is still poorly known how they could interact to affect biotic communities and the ecosystem processes that they control. The general objective of this proposal is to advance in the understanding of the direct and indirect effects of climate change on biotic communities and invasive pathogens interactions in forest systems. This interaction has been largely ignored so far, but its consideration is crucial to understand how abiotic and biotic stress factors together determine forest health and stability. Specifically, CCPaMe aims to: 1) Determine the direct effects of climate change on the exotic pathogen Phytophthora cinnamomi. It will be identified potential non-additive effects of rainfall exclusion and warming on its abundance and infected capacity by field and growth chamber experiments. 2) Determine the indirect effects of climate change on soil microorganisms and P. cinnamomi ecology. It will be determined the effects of climate change on the hosts susceptibility to P. cinnamomi and on the abundance, diversity and composition of soil organisms community (bacteria, fungi, archaea and actinomycete) and their implications for P. cinnamomi functionality: modification of its infective capacity and the alteration of pathogen interactions with other soil microbes. CCPaMe results will provide key insights to address current challenges regarding climate change effects and exotic pathogen control on forest systems and the conservation and protection of forest resources. Moreover, they will allow an improvement of our predictive capacity of the socio-economic consequences of future P. cinnamomi outbreaks, serving as a guide for the design of up-to-date management and mitigation policies.

Оригинален текст от CORDIS (на английски).

Участници

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS · MadridКоординаторИспания