Comparison of neophyte communities of Robinia pseudoacacia L. and Acer negundo L. in the eastern Baltic Sea region cities of Riga and Kaunas

Marozas, Vitas; Cekstere, Gunta; Laiviņš, Māris; Straigytė, Lina

doi:10.1016/j.ufug.2015.08.003

Cited by 23 publications

(13 citation statements)

References 29 publications

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“…The presence of invasive tree species alters the composition of forests, leading to replacement of the riparian native species [67]. In extreme cases, in the riparian zones the invasion can lead to the development of homogenous communities of novel ecosystems little resembling the former riparian forests [68]. A. negundo is a pioneer species and easily spreads onto riparian areas, which constitute dispersal corridors to light-seeded plants [39,69].…”

Section: Discussionmentioning

confidence: 99%

You Can’t See the Woods for the Trees: Invasive Acer negundo L. in Urban Riparian Forests Harms Biodiversity and Limits Recreation Activity

et al. 2019

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Public access to high quality green environments has become a key issue for city managers and a matter of environmental justice. Urban pressures on ecosystem remnants may act to favor the expansion of some invasive species in cities. Whilst the negative impacts of invasive species on ecosystem function is well documented, little is known about how invasive species influence the use of green space by people. Here, we examined one of the few remnants of urban riparian forests in Europe, the Vistula river valley in Warsaw, which has recently become an attractive recreation site. Despite their high ecological value, the poplar and willow forests have been increasingly taken over by the invasive tree species Acer negundo. We examined the status of the invasion process and the relationship between recreational ecosystem services and the characteristics of the tree stands—tree species, tree density, and age and NDVI values. We found the willow forest to be more susceptible to invasion by A. negundo than the poplar forest, which was revealed in significantly higher share of the maple individuals and their greater volume per unit area. Ash-leaved maples also prevailed in numbers in younger stands (<10 years) than in older ones. The presence of A. negundo affected biodiversity, resulting in decreased undergrowth density and biodiversity expressed in number of species. The use intensity by the public, assessed on the basis of soil compaction of existing informal tracks, as revealed by GLM analysis, was related to volume of invasive maple and distance from the main track. This study highlights the need to integrate invasive species management into green infrastructure planning and management.

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Section: Discussionmentioning

confidence: 99%

You Can’t See the Woods for the Trees: Invasive Acer negundo L. in Urban Riparian Forests Harms Biodiversity and Limits Recreation Activity

et al. 2019

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“…Jos abi laikomos labai sparčiai plintančiomis sinantropinėmis rūšimis, kurios greitai užima derlingus pažeistų buveinių dirvožemius. Chamaenerion angustifolium, Fragaria vesca ir Rubus idaeus taip pat laikomos greitai plintančiomis rūšimis urbanizuotose vietose, ypač tose, kur pakanka apšvietimo (kirtimai, miško aikštės, miško pakraščiai, pakelės) ir kuriose greitesnis maistinių medžiagų skaidymasis (Straupe et al, 2012;Marozas et al, 2015).…”

Section: Miško Augavietės Tipas / Forest Site Typeunclassified

Non-native Amelanchier spicata (Lam.) K. Koch distribution and impact on the structure and composition of forest phytocenoses in Lithuanian forests

Pratašienė¹,

Marozas²

2018

zemesukiomokslai

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Tyrimo tikslas -įvertinti varpinės medlievos pasiskirstymą įvairiuose Lietu vos miškuose pagal medynų dendrometrinius rodiklius (medyno rūšinę su dėtį, amžių, skalsumą) ir augaviečių tipus, taip pat nustatyti jos daromą įta ką rūšinei miško fitocenozių sudėčiai, struktūrai ir dirvožemio cheminėms savybėms. Tyrimas atliktas 2016-2017 m. birželio-rugpjūčio mėnesiais. Išskirti 24 bareliai įvairių Lietuvos rajonų miškuose. Pasirinktos vietovės, kuriose per sklypinę miškų inventorizaciją buvo užfiksuoti varpinės med lievos krūmai. Varpinės medlievos pasiskirstymas įvairių dendrometrinių parametrų medynuose atliktas pasitelkus sklypinės miškų inventorizacijos duomenų bazę. Tirtas trako rūšies pasiskirstymas įvairios rūšinės sudėties medynuose ir miško augavietėse, išreikštas proporcine dalimi nuo bendro Lietuvos pušynų, eglynų, beržynų ir Nb, Nc, Lb, Ld, Uc miško augaviečių ploto, kad būtų nustatyta, kur dažniausiai mėgo įsikurti varpinė medlieva. Kiekviename barelyje, penkiose sisteminiu būdu parinktose vietose, iš vir šutinio dirvožemio sluoksnio (0-10 cm) paimti ėminiai ir vėliau atliktos cheminės analizės. Varpinė medlieva dažniausiai buvo paplitusi pušynuose ir užėmė 2406,4 ha. Tai sudarė tik 0,33 % bendro visų pušynų ploto. Varpinė medlieva gausiausiai paplitusi N hidrotopo augavietėse, pusamžiuose ir vi dutinio 0,7-0,8 skalsumo pušynuose. Miškai su varpine medlieva pasižymė jo didele rūšių įvairove (110 rūšių), tačiau dauguma jų -nebūdingos miškų ekosistemoms. Dirvožemio cheminių savybių analizė parodė, kad varpinė medlieva augo mažesnio rūgštingumo ir daugiau maistinių medžiagų turin čiuose dirvožemiuose. Raktažodžiai: svetimkraštė rūšis, varpinė medlieva, medynai ĮVADASDėl intensyvios žmogaus veiklos daugelio augalų bendrijų rūšinė sudėtis laikui bėgant pasikeitė ir dabar vis dar sparčiai keičiasi. Vienas svarbus veiksnys, turintis įtakos bendrijų pokyčiams, -intensyvus augalų pasklidimas už natū-ralaus paplitimo arealo ribų (Richardson, Rejmanek, 2011). D. M. Richardsonas ir kt. (2000) savo darbuose labai tiksliai įvardijo invazinių augalų sąvoką teigdami, kad invazinis augalas -tai natū-ralizavęsis augalas, kuris sulaukia gyvybingų palikuonių, dažnai labai gausiai sudygstančių dideliu atstumu nuo motininio augalo, taip įgydamas galimybę pasklisti didelėje teritorijoje, prigyti ir daugintis. Ne visos introdukuotos rūšys tampa invazinės. Tik 10 % visų rūšių, atsitiktinai ištrū-kusių už savo natūralaus paplitimo arealo ribų, išgyvena naujoje aplinkoje; 10 % svetimkraščių rūšių pradeda daugintis; tik 10 % besidauginančiųjų tampa ypač gausios, natūralizuojasi ir netgi pradeda keisti vietines bendrijas (transformers).

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“…Approaches aimed at optimising specific ES exclusively may exacerbate associated EDS, and those aimed solely at reducing EDS may reduce ES (Shackleton et al 2016). For example, planting Black Locust (Robinia pseudoacacia L., Fabaceae) in urban areas for aesthetic purposes, shade, or to provide resources for honey-producing bees, may also provide EDS such as altered soil fertility and reduced species richness (Marozas et al 2015). Given the limited resources available for assessing urban ES and EDS in many cities, practical approaches that integrate ES and EDS in the decision-making process are needed.…”

Section: Introductionmentioning

confidence: 99%

A fine-scale assessment of the ecosystem service-disservice dichotomy in the context of urban ecosystems affected by alien plant invasions

et al. 2019

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Background: Natural resources within and around urban landscapes are under increasing pressure from ongoing urbanisation, and management efforts aimed at ensuring the sustainable provision of ecosystem services (ES) are an important response. Given the limited resources available for assessing urban ES in many cities, practical approaches for integrating ES in decision-making process are needed. Methods: We apply remote sensing techniques (integrating LiDAR data with high-resolution multispectral imagery) and combined these with supplementary spatial data to develop a replicable approach for assessing the role of urban vegetation (including invasive alien plants) in providing ES and ecosystem disservices (EDS). We identify areas denoting potential management trade-offs based on the spatial distribution of ES and EDS using a local-scale case study in the city of Cape Town, South Africa. Situated within a global biodiversity hotspot, Cape Town must contend with widespread invasions of alien plants (especially trees and shrubs) along with complex socio-political challenges. This represents a useful system to examine the challenges in managing ES and EDS in the context of urban plant invasions. Results: Areas of high ES provision (for example carbon sequestration, shade and visual amenity) are characterized by the presence of large trees. However, many of these areas also result in numerous EDS due to invasions of alien trees and shrubsparticularly along rivers, in wetlands and along the urban edge where tall alien trees have established and spread into the natural vegetation (for example increased water consumption, increased fire risk and reduced soil quality). This suggests significant trade-offs regarding the management of species and the ES and EDS they provide. Conclusions: The approach applied here can be used to provide recommendations and to guide city planners and managers to fine-tune management interventions at local scales to maximise the provision of ES.

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Comparison of neophyte communities of Robinia pseudoacacia L. and Acer negundo L. in the eastern Baltic Sea region cities of Riga and Kaunas

Cited by 23 publications

References 29 publications

You Can’t See the Woods for the Trees: Invasive Acer negundo L. in Urban Riparian Forests Harms Biodiversity and Limits Recreation Activity

You Can’t See the Woods for the Trees: Invasive Acer negundo L. in Urban Riparian Forests Harms Biodiversity and Limits Recreation Activity

Non-native Amelanchier spicata (Lam.) K. Koch distribution and impact on the structure and composition of forest phytocenoses in Lithuanian forests

A fine-scale assessment of the ecosystem service-disservice dichotomy in the context of urban ecosystems affected by alien plant invasions

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