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Managing the invasive plant Carpobrotus edulis: is mechanical control or specialized natural enemy more effective?
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SYSNO ASEP 0546713 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Managing the invasive plant Carpobrotus edulis: is mechanical control or specialized natural enemy more effective? Tvůrce(i) Núñez-González, N. (ES)
Rodríguez, Jonatan (BU-J) ORCID, RID
González, L. (ES)Číslo článku 113554 Zdroj.dok. Journal of Environmental Management. - : Elsevier - ISSN 0301-4797
Roč. 298, 15 Nov (2021)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova biocontrol ; invasion ecology ; plant-herbivore interactions Vědní obor RIV EH - Ekologie - společenstva Obor OECD Ecology CEP GA19-13142S GA ČR - Grantová agentura ČR Způsob publikování Open access s časovým embargem (01.12.2023) Institucionální podpora BU-J - RVO:67985939 UT WOS 000697022800003 EID SCOPUS 85112773871 DOI 10.1016/j.jenvman.2021.113554 Anotace Carpobrotus edulis is an invasive clonal plant with drastic effects on biodiversity and functioning of coastal ecosystems. In recent years, authorities and land managers have implemented diverse management strategies that usually focus on mechanical removal and chemical control. However, applying mechanical control to remove C. edulis may cause indirect adverse effects since it could increase the probability of spreading new propagules, which do not lose their physiological activity. Therefore, reducing the physiological activity of these plant fragments should be a priority to avoid their spread and re-rooting. Our goal was to assess the plant regeneration capacity after applying mechanical control (i) when placing the plant material on different types of ground surface (on sand, on stones and using rooted plants as control) and (ii) combined with the attack of specialized herbivores (the soft scale Pulvinariella mesembryanthemi). To achieve this, we evaluated how these two factors (ground surface and herbivory) affected the plant physiological activity, its survival and re-rooting, biometric measurements, shoot and root nutrient composition and biochemical parameters (total phenols and tannins). Regardless of the ground surface type, our results indicated that the specialist herbivore greatly affected the C. edulis parameters studied. The attack of P. mesembryanthemi stimulated the plant defence mechanisms, even in those individuals with less photosynthetic activity. Furthermore, P. mesembryanthemi severely reduced the biomass and volume of plant material. Decomposition of C. edulis was accelerated by the combination be-tween the inoculation of P. mesembryanthemi and placing the plants on the stones ground surface. Overall, preventing plant re-rooting by avoiding connection to the soil is an effective method of reducing its viability after the eighth-tenth month. After applying mechanical control, we recommend placing C. edulis fragments over an inert ground surface to avoid re-rooting, which would favour its death. We conclude that the combination of mechanical control and P. mesembryanthemi or even direct inoculation with this specialist herbivore could help authorities and land managers to improve management strategies for C. edulis. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2022 Elektronická adresa https://doi.org/10.1016/j.jenvman.2021.113554
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