More than 65% (1040 species) of arthropod species alien to Europe are associated
with human-made habitats, especially parks and gardens, human settlements and
agricultural lands, whereas woodlands are yet colonized by less than 20% of the
alien fauna, which still has a negligible representation in the other natural
and semi-natural habitats. Large diff erences in habitat affi nity are observed
between alien taxonomic groups. Phytophagous species are predominant among
aliens, representing 47.2% of species alien to Europe

Glavendekić, Milka

Lopez-Vaamonde, Carlos

Paiva, Maria Rosa

BIORISK – Biodiversity and Ecosystem Risk Assessment

English

More than 65% (1040 species) of arthropod species alien to Europe are associated with human-made habitats, especially parks and gardens, human settlements and agricultural lands, whereas woodlands are yet colonized by less than 20% of the alien fauna, which still has a negligible representation in the other natural and semi-natural habitats. Large differences in habitat affinity are observed between alien taxonomic groups. Phytophagous species are predominant among aliens, representing 47.2% of species alien to Europe

Lopez Vaamonde,Carlos

Glavendekic,Milka

Rosa Paiva,Maria

ARPHA OAI-PMH Endpoint

Invaded habitats. Chapter 4

Rosa Paiva, Maria

ZENODO

More than 65% (1040 species) of arthropod species alien to Europe are associated with human-made habitats, especially parks and gardens, human settlements and agricultural lands, whereas woodlands are yet colonized by less than 20% of the alien fauna, which still has a negligible representation in the other natural and semi-natural habitats. Large diff erences in habitat affi nity are observed between alien taxonomic groups. Phytophagous species are predominant among aliens, representing 47.2% of species alien
to Europe

Lopez Vaamonde, Carlos

Glavendekic, Milka

ProdInra

ARPHA Preprints

Biodiversity Heritage Library OAI Repository

NEUROSURGERY ENTHUSIASTIC WOMEN SOCIETY

Repositório da Universidade Nova de Lisboa

Invaded habitats. Chapter 4 45Invaded habitatsChapter 4Carlos Lopez-Vaamonde1, Milka Glavendekić2, Maria Rosa Paiva31 INRA UR633, Zoologie Forestière, Centre de recherche d'Orléans, 2163 Avenue de la Pomme de Pin, CS 40001 Ardon, 45075 Orléans Cedex 2, France 2 Department of Landscape architecture and Horticulture, Faculty of Forestry, University of Belgrade, Belgrade, Serbia 3 DCEA, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Lisbon, PortugalCorresponding authors: Carlos Lopez-Vaamonde (carlos.lopez-vaamonde@orleans.inra.fr), Milka Glavendekić (milka.glavendekic@sfb.rs), Maria Rosa Paiva (mrp@fct.unl.pt)Academic editor: Alain Roques    |    Received  10 April 2010    |    Accepted 20 May 2010    |    Published 6 July  2010Citation: Lopez-Vaamonde et al. (2010) Invaded habitats. Chapter 4. In: Roques A et al. (Eds) Alien terrestrial arthro-pods of Europe. BioRisk 4(1): 45–50. doi: 10.3897/biorisk.4.66AbstractMore than 65% (1040 species) of arthropod species alien to Europe are associated with human-made habitats, especially parks and gardens, human settlements and agricultural lands, whereas woodlands are yet colonized by less than 20% of the alien fauna, which still has a negligible representation in the other natural and semi-natural habitats. Large diff erences in habitat affi  nity are observed between alien taxo-nomic groups. Phytophagous species are predominant among aliens, representing 47.2% of species alien to Europe.Keywordsalien, arthropod, habitat, Europe, level of invasion, urban, semi-urban4.1 IntroductionTh e lack of a general assessment on the level of habitat invasion in Europe has up to now limited the possibilities of evaluating the risks arthropod invaders pose to diff er-ent habitats. Such an assessment is a fundamental component of early detection and identifi cation of those environments that are more prone to invasion, that will provide a baseline for optimizing actions to prevent, monitor and control invasion (Pyšek et BioRisk 4(1): 45–50 (2010)doi: 10.3897/biorisk.4.66www.pensoftonline.net/bioriskCopyright C. Lopez-Vaamonde. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.RESEARCH ARTICLE BioRiskA peer-reviewed open-access journalCarlos Lopez-Vaamonde et al. /  BioRisk 4(1): 45–50 (2010)46al. 2010). For that reason, here we present a synthesis of the data on habitat preference of terrestrial arthropods alien to Europe compiled from chapters 7-13 of this book, providing an overview of which habitats are most invaded in Europe, and to assess dif-ferences among alien taxa in terms of habitat affi  nity.We compared the numbers of established alien species occurring in 11 Europe-an habitats defi ned according to the European Nature Information System, level 1 (EUNIS) (Davies et al. 2004). Th is standard classifi cation of European habitats has been chosen as a platform in several diff erent studies on biological invasions in Europe (Chytrý et al. 2008, Daisie 2009, Pyšek et al. 2010). In this classifi cation, a ‘habitat’ is defi ned as ‘a place where plants or animals normally live, characterized primarily by its physical features (topography, plant or animal physiognomy, soil characteristics, climate, water quality, etc.) and secondarily by the species of plants and animals that live there’ (Davies et al., 2004). Appendix II presents the diff erent habitat types used throughout the taxa chapters. For more convenience, our analysis grouped them into the follow-ing broad categories roughly corresponding to the level I of EUNIS: coastal habitats (EUNIS class B); wetlands and riparian habitats (C); mires (D); grasslands (E); heath-lands, hedgerows and shrub plantations (F); woodlands (G); cultivated habitats (I1); parks and gardens (we grouped the classes I2 and X11, X22, X23, X24, X25); and urban settlements (J) to which we added a specifi c code for greenhouses (J100). Th ese broad categories may not precisely refl ect the habitat(s) actually colonized by some species, but their use standardizes comparisons between very diff erent taxa such as arthropods, plants and vertebrates.Th e habitats in the system adopted here diff er considerably in the number of alien arthropod species they contain. Aliens show a strong affi  nity for the habitats inten-sively disturbed by human activities (Figure 4.1.). Considering all established alien terrestrial arthropods, the highest percentage occurs in parks and gardens (500 out of the 1590 alien species found in Europe- 31.4%) and in human settlements (31.0 %), whilst slightly less occur in cultivated habitats, which host 29.7% of these alien species. Altogether, human-made habitats host 65.4% (1040 species) of the fauna of arthropods alien to Europe, most of these species being likely to occur in several diff er-ent habitats. In contrast, less than 10% of the alien species have yet colonized natural and semi-natural habitats such as wetlands, riparian habitats, grasslands and heath-lands, and less than 20% occur in woodlands and forests (Figure 4.1). Th ese results confi rm the analysis of Roques et al. (2009) which relied on a lower number of alien arthropod species. Pyšek et al. (2010) also stated that alien plants are mostly found in human-made, urban or cultivated habitats, unlike vertebrates, which are more evenly distributed among habitats, the most invaded of which are aquatic and riparian habi-tats, woodland and cultivated land.Some habitats are diff erentially preferred by certain taxonomic groups (Table 4.1). For instance, many alien species are pests of ornamental plants in parks and gardens. In particular, mites are an important group attacking urban trees, shrubs and fl owering plants. More than 40% of alien mites are observed in this habitat. Similarly, alien hemipterans, especially aphids, and lepidopterans have colonized parks and gar-Invaded habitats. Chapter 4 47dens eff ectively, 78.9% and 56.7% of their species being observed there, respectively (Table 4.1).Built-up, industrial and other artifi cial habitats are invaded to a high degree by spiders. Indeed, more than 90% of the alien spiders are found in buildings. Psocoptera is another well-represented group in this habitat with 81.6% of its alien species in Eu-rope occurring there, as is Phthiraptera (67.7%) and Coleoptera (57.3%), a number of species of the latter group being associated with stored products. By contrast, alien Hymenoptera are mostly present in agricultural lands which are colonized by 65.0% of the alien species in this taxon, probably in relation with the multiple parasitoid releases that have occurred for biological control purposes. Greenhouses constitute another important man-made habitat type, which hosts most alien myriapods (64.7%) and thrips (55.8%).Why do most introduced terrestrial arthropods apparently stay confi ned to hu-man- modifi ed habitats in their alien range of distribution? Several ecological condi-tions may be considered: i) disturbed urban and semi-urban areas may have a lower resistance to aliens, especially because of a lower pressure of potential natural enemies and, for phytophagous aliens, less vigorous host plants; ii) some species may prefer human-related habitats in their native range and are thus more likely to be carried into a new area by human transport, than species living in natural environments (Kenis et al. 2007). For instance, exotic ornamental plants are generally used in man-made habitats such as nurseries, parks and gardens and roadside plantings and shelter belts. Most alien phytophagous species introduced alongside these ornamentals remain as yet strictly associated with their original, exotic host (46.4% in Europe; Roques, 2008). Th ey have not so far colonized native trees, and thus they develop only in parks and gardens and in hedgerows where such exotic plants are planted. A striking example Figure 4.1. Main European habitats colonized by the 1590 species of terrestrial arthropods alien to Eu-rope. Th e number over each bar indicates the absolute number of alien species recorded per habitat. Note that a species may have colonized several habitats.Carlos Lopez-Vaamonde et al. /  BioRisk 4(1): 45–50 (2010)48is that of the horse-chestnut leaf-mining moth Cameraria ohridella, which in its area of origin, the southern Balkans, lives in mountain ravines, whereas in its introduced area of Central and Western Europe, preferentially colonizes urban parks and gardens where its host tree has been extensively planted (Valade et al. 2009).However, there could be a time-lag between the introduction to human habitats and adaptation and spread to natural habitats. Th erefore, many alien species currently confi ned to human-made habitats should be monitored for their potential spread to natural areas (Roques et al. 2009). For instance, species such as the Asian longhorn beetles, Anoplophora spp., (Coleoptera, Cerambycidae) have the potential to live in urban areas, in cultivated lanes (e.g. those planted with poplars) as well as in natural forests where potential host plants occur. However, dispersal from man-made habitats to natural forests appears to be a slow process. For the fi rst twenty-two years since its arrival in North America, A.  glabripennis was restricted to trees in urban areas, but in 2008, it was found in natural forests dominated by Acer trees (Haack et al. 2010).Finally, phytophagous speci es are predominant among the alien terrestrial arthro-pods, representing 47.2% (751 of 1590) of alien species to Europe, Parasitoids and predators only account for 32.6 % (518 spp.) whilst detritivores represent 20.8% (331 spp.). A few species exhibit several phytophagous guilds, whilst the habits of just 19 species are still unknown.ReferencesChytrý M, Maskell LC, Pino J, Pyšek P, Vilà M, Font X, Smart SM (2008) Habitat invasions by alien plants: a quantitative comparison among Mediterranean, subcontinental and oceanic regions of Europe. Journal of Applied Ecology, 45: 448–458.DAISIE (2009) Handbook of alien species in Europe. Dordrecht: Springer. 399 pp.Davies CE, Moss D, Hill MO (2004) EUNIS habitat classifi cation, revised 2004. Paris: Euro-pean Environment Agency, Copenhagen and European Topic Centre on Nature Protection and Biodiversity.Haack RA, Hérard F, Sun JH, Turgeon JJ (2010) Managing invasive populations of Asian longhorned beetle and Citrus longhorn beetle: A worldwide perspective. Annual Review of Entomology 55: 521–546.Kenis M, Rabitsch W, Auger-Rozenberg M-A, Roques A (2007) How can alien species in-ventories and interception data help us prevent insect invasions? Bulletin of Entomological Research 97: 489–502.Pyšek P, Bacher S, Chytrý M, Jarošík V, Wild J, Celesti-Grapow L, Gassó N, Kenis M, Lamb-don P, Nentwig W, Pergl J Roques A, Sádlo J, Solarz W, Vilà M, Hulme PE (2010) Con-trasting patterns in the invasions of European terrestrial and freshwater habitats by alien plants, insects and vertebrates. Global Ecology and Biogeography 19: 317–331.Roques A. (2008). Th e pan-European inventory of alien species established on trees on shrubs, a tool for predicting taxa and ecosystems at risk -fi nal results of the DAISIE project. In Alien invasive species and international trade, 2nd meeting of IUFRO Working Unit 7.03.12, Invaded habitats. Chapter 4 49May 26-30, 2008, National Conservation Training Center, Shepherdstown, WV, USA. Availa-ble at http://www.forestry.gov.uk/pdf/IUFRO_ Shepherdstown_Roques_Sheperdstown_ end.pdf.Roques A, Rabitsch W, Rasplus JY, Lopez-Vaamonde C, Nentwig W, Kenis M (2009) Alien terrestrial invertebrates of Europe. In: Daisie (Ed) Handbook of Alien Species in Europe. Dordrecht: Springer, 63–79.Valade R, Kenis M, Hernandez A, Augustin S, Mari Mena N, Magnoux E, Rougerie R, Lakatos F, Roques A, Lopez-Vaamonde C (2009) Mitochondrial and microsatellite DNA mark-ers reveal a Balkan origin for the highly invasive Horse-Chestnut leaf miner Cameraria ohridella (Lep. Gracillariidae). Molecular Ecology 18: 3458–3470.Carlos Lopez-Vaamonde et al. /  BioRisk 4(1): 45–50 (2010)50Table 4.1. Comparative colonization of European habitats by the diff erent taxonomic groups of terrestrial arthropods alien to Europe. Th e total number of estab  lished alien species observed in each habitat is fi gured. A species may have colonized several habitats. Th e per-centage of species observed in the habitat with regard to the total number of alien species in the taxonomic group in Europe (last line) is given between brackets. ‘Polyneoptera’ includes Blattodea, Dermaptera, Isoptera, Orthoptera and Phasmatodea (see Chapter 13.3). EUNIS categoriesCrustaceaMyriapodsAraneaAcariColeopteraDipteraHemipteraHymenopteraLepidopteraPhthirapteraPolyneoptera1PsocopteraSiphonapteraTh ysanopteraZygentoma/ CollembollaA- Marine habitats-------------B- Coastal habitats -3 (8.8)-12 (3.0)6 (6.1)2 (0.6)-2 (2.1)-----C- Riparian habitats ---6 (5.9)5(1.3)4 (4.1)1 (0.3)3 (1.0)-1 (3.2)----D- Mires, bogs, fens -1 (2.9)--3 (0.8)4 (4.1)1 (0.3)1 (0.3)------E- Grasslands-2 (5.9)6 (12.8)2 (2.0)24 (6.0)6 (6.1)19 (6.0)8 (2.7)3 (3.1)4 (12.9)7 (18.9)-2 (28.6)3 (5.8)-F- Heathlands -2 (5.9)6 (12.8)9 (8.8)39 (9.8)4 (4.1)16 (5.0)4 (1.3)13 (13.4)1 (3.2)2 (5.4)-1 (14.3)2 (3.8)-G- Woodlands 3 (17.6)4 (11.8)6 (12.8)10 (9.8)77 (19.3)12 (12.2)61 (19.2)74 (24.9)19 (19.6)8 (28.6)1 (2.7)12 (19.0)2 (28.6)2 (3.8)-H- Bare lands -2 (5.9)6 (12.8)-2 (0.5)1 (1.0)1 (0.3)2 (0.7)2 (2.1)-1 (2.7)2 (3.2)---I- Cultivated lands -3 (8.8)6 (12.8)33 (32.4)87 (21.9)18 (18.4)91 (28.6)193 (65.0)25 (25.8)-7 (18.9)1 (1.6)-7 (13.5)1 (16.7)I2/X- Parks, gardens-9 (26.5)-42 (41.2)69 (17.3)17 (17.3)251 (78.9)23 (7.7)55 (56.7)7 (14.3)2 (5.4)8 (12.7)1 (14.3)15 (28.8)1 (16.7)J- Urban, semi-urban 17 (100.0)8 (23.5)43 (91.5)11 (10.8)228 (57.3)25 (25.5)7 (2.2)31(10.4)33 (34.0)21 (71.4)20 (54.1)40 (63.5)5 (71.4)1 (1.9)3 (50.0)J100 - Greenhouses-22 (64.7)2 (4.3)13 (12.7)12 (3.0)6 (6.1)80 (25.2)63 (21.2)16 (16.5)-5 (13.5)--29 (55.8)3 (50.0)Total species17344710239898318297973137497526

Invaded habitats

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Invaded habitats

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