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1. Communities across trophic levels, and the functional roles they play, are vital for the sustained provision of ecosystem services. In forest systems, diversification of overstorey composition has been shown to be a key driver of biodiversity, but its influence on across-trophic level relationships remains scarcely known. Species across trophic levels in varied overstorey compositions are also differentially susceptible to fragmentation context. We hypothesise that fragmentation will disrupt community relationships associated with particular overstorey compositions. 2. We test this hypothesis using a tree diversity research platform across 53 deciduous woodland plots in central Belgium. We estimate species' abundances within nine, generally taxonomic, community groups across trophic levels: understorey vegetation; leaf miners and gall formers; woodlice, millipedes; carabid beetles, harvestmen, spiders, birds, bats. We use multiple co-inertia analyses to examine how taxonomic and trophic role community matrices covary across gradients of overstorey composition, via three different tree species diversification pathways, and fragmentation. 3. For all trophic role groups, across all plots, there was at least one significant pairwise comparison. Apart from comparisons involving bats, there was at least one significant pairwise correlation between taxonomic groups too. These results indicate correlated community matrices across trophic levels. Overstorey composition related to community tightness, that is, the level of co-ordinated change among taxonomic and/or trophic role groups as revealed by multiple co-inertia analyses. Notably, diversifying woodlands of beech Fagus sylvatica or red oak Quercus rubra with pedunculate oak Quercus robur correlated with increased taxonomic community tightness. Diversifying pedunculate oak forest stands with other overstorey species related to unchanged community tightness. Evidence was lacking for fragmentation affecting community tightness, singly or by interacting with overstorey composition. 4. Synthesis. Overall, changing tree species composition and fragmentation level affected across-trophic level community relationships differently. Yet, we demonstrated a clear signal that diversifying monoculture stands with particular species correlated with greater community tightness, and co-ordinated change among sets of community groups, across trophic levels and regardless of fragmentation context. We postulate that having tighter community relationships suggests that measures to improve biodiversity at one trophic level (i.e. trees) could affect other groups, and their associated roles, in a co-ordinated manner.

© 2019 The Authors. Diversity and Distributions Published by John Wiley & Sons Ltd Aim: Forests are highly fragmented across Western Europe, making forest edges important features in many agricultural landscapes. Forest edges are subject to strong abiotic gradients altering the forest environment and resulting in strong biotic gradients. This has the potential to change the forest's capacity to provide multiple ecosystem services such as nutrient cycling, carbon sequestration and natural pest control. Soil organisms play a key role in this perspective; however, these taxa are rarely considered in forest edge research. Location: A latitudinal gradient of 2,000 km across Western Europe. Methods: We sampled six dominant taxa of litter-dwelling macro-arthropods (carabid beetles, spiders, harvestmen, centipedes, millipedes and woodlice) in forest edges and interiors of 192 forest fragments in 12 agricultural landscapes. We related their abundance and community composition to distance from the edge and the interaction with forest age, edge orientation and edge contrast (contrast between land use types at either side of the edge). Results: Three out of six macro-arthropod taxa have higher activity-density in forest edges compared to forest interiors. The abundance patterns along forest edge-to-interior gradients interacted with forest age. Forest age and edge orientation also influenced within-fragment compositional variation along the forest edge-to-interior gradient. Edge contrast influenced abundance gradients of generalist predators. In general, older forest fragments, south-oriented edges and edges along structurally more continuous land use (lower contrast between forest and adjacent land use) resulted in stronger edge-to-interior gradients while recent forests, north-oriented edges and sharp land use edges induced similarity between forest edge and interior along the forest edge-to-interior gradients in terms of species activity-density and composition. Main conclusions: Edge effects on litter-dwelling macro-arthropods are anticipated to feedback on important ecosystem services such as nutrient cycling, carbon sequestration and natural pest control from small forest fragments. ispartof: DIVERSITY AND DISTRIBUTIONS vol:25 issue:6 pages:963-974 status: published

New taxonomic data on the ground spiders of the families Gnaphosidae, Liocranidae and Prodidomidae from the Greek islands Rodos and Symi are presented resulting from extensive field work conducted in 2006. Additional material from Karpathos is also included. In total, 48 species are recorded, and five new species (Drassodes mylonasi Chatzaki sp.n., Echemus kaltsasi Chatzaki sp.n., Minosiella apolakia Chatzaki sp.n., Phaeocedus vankeeri Chatzaki sp.n., and Turkozelotes attavirus Chatzaki sp.n.) are proposed. Although the Gnaphosidae of Cyprus are not the focus of the present paper, the unknown female of Echemus levyi Kovblyuk, 2009 found in Cyprus, is also described here for comparative purposes. Leptodrassex memorialis (Spassky, 1940) is justifiably transferred to the genus Leptopilos Levy, 2009 and it is therefore regarded as Leptopilos memorialis comb.nov. The male of Zelotes daidalus Chatzaki, 2003 and the female of Z. minous Chatzaki, 2003 are newly matched and Z. daidalus is further synonymised with Z. shaked Levy, 1998.The new matching of Z. minous males with Z. daidalus females is justified. Two species are new records for Greece: Zelotes limnatis Chatzaki & Russell-Smith, 2017 and Agraecina scupiensis Deltshev, 2016.

Cithaeron dippenaarae sp. n. is described from both sexes. The species occurs in stony regions in the south of Morocco.

Humans require multiple services from ecosystems, but it is largely unknown whether trade‐offs between ecosystem functions prevent the realisation of high ecosystem multifunctionality across spatial scales. Here, we combined a comprehensive dataset (28 ecosystem functions measured on 209 forest plots) with a forest inventory dataset (105,316 plots) to extrapolate and map relationships between various ecosystem multifunctionality measures across Europe. These multifunctionality measures reflected different management objectives, related to timber production, climate regulation and biodiversity conservation/recreation. We found that trade‐offs among them were rare across Europe, at both local and continental scales. This suggests a high potential for ‘win‐win’ forest management strategies, where overall multifunctionality is maximised. However, across sites, multifunctionality was on average 45.8‐49.8% below maximum levels and not necessarily highest in protected areas. Therefore, using one of the most comprehensive assessments so far, our study suggests a high but largely unrealised potential for management to promote multifunctional forests., This paper is a joint effort of the working group ‘Scaling biodiversity‐ecosystem functioning relations: a synthesis based on the FunDivEUROPE research platforms’ on the 24th–26th November 2014 in Leipzig, Germany, kindly supported by sDiv, the Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig, funded by the German Research Foundation (FZT 118). The FunDivEUROPE project received funding from the European Union's Seventh Programme (FP7/2007–2013) under grant agreement No. 265171. We thank the MAGRAMA for access to the Spanish Forest Inventory, the Johann Heinrich von Thünen‐Institut for access to the German National Forest Inventories, the Natural Resources Institute Finland (LUKE) for making the Finnish NFI data available, the Swedish University of Agricultural Sciences for making the Swedish NFI data available, and Hugues Lecomte, from the Walloon Forest Inventory, for access to the Walloon NFI data. The study was supported by the TRY initiative on plant traits (http://www.trydb.org).

Cheiracanthium rupestre Herman, 1879 nomen dubium Chiracanthium rupestre Herman, 1879: 157, 356, pl. 7, f. 158 (Description and illustration of female). [Holotype ♀ from HUNGARY: Majl��th (Di��sgyőr, Miskolc), considered lost]. Cheiracanthium macedonicum Drensky, 1921 ( Figs 1 a+b, 2a+b, 4, 5a+b, 6a+b) Chiracanthium rupestre ��� Chyzer & Kulczyński 1897: 235, pl. 9, figs 42, 62, 78 (description of female, description and illustration of male; three ♀♀ examined, two of them by photographs, considered misidentified) Chiracanthium macedoinica [sic, lapsus] Drensky, 1921: 49, 77, pl. 1, figs 12-14 (description and illustration of female). [Holotype ♀ from BULGARIA: Yakoruda, Drensky leg., examined]. Chiracanthium macedonica ��� Drensky 1929: 23 (lapsus corrected) Cheiracanthium mazedonica ��� Drensky 1936: 173 (lapsus) Cheiracanthium macedonicum ��� Roewer 1955: 480 (correction of gender ending required by ICZN Art. 31.2). Chiracanthium macedonicum ��� Bonnet 1956: 1060 Cheiracanthium rupestre ��� Oltean 1973: 46, figs 1-2 (description and illustration of male; considered misidentified) Cheiracanthium rupestre ��� Sterghiu 1985: 110, figs 33a-c (description and illustration of male; considered misidentified) Cheiracanthium striolatum Simon, 1878 Cheiracanthium rupestre ��� Oltean 1973: 46, figs 1-2 (description and illustration of male; considered misidentified) Cheiracanthium rupestre ��� Sterghiu 1985: 110, figs 33a-c (description and illustration of male; considered misidentified) Cheiracanthium striolatum Simon, 1878, Published as part of Rainer Breitling, Tobias Bauer, Arno Grabolle, Pierre Oger, Paolo Pantini, Johan Van Keer, Walter P. Pfliegler, Elke JantsCher & Jan Dolansk��, 2016, East meets West: on the true identity of Cheiracanthium rupestre and Xysticus albomaculatus (AraChnida: Araneae: EutiChuridae, Thomisidae), pp. 38-49 in Arachnologische Mitteilungen 52 on page 47, DOI: 10.5431/aramit5208, http://zenodo.org/record/198414, {"references":["Herman O 1879 Magyarorszag Pok-faunaja. III. A Kiralyi Magyar Termeszettudomanyi Tarsulat Megbizasabol. Ungarns Spinnen- fauna. III. Im Auftrage der Koniglich Ungarischen Naturwissenschaftlichen Gesellschaft. Budapest. 394 pp.","Drensky P 1921 Paiti otъ iztocнa Мakidoнii i Piрiн-pлaнiнa [Payazi ot iztochna Makedonia i Pirin-Planina - Spiders from Eastern Macedonia and the Pirin Mountains]. - Сpiсaнii нa Bълgaрсkata akadiмii нa нaukitѣ [Spisanie na Bulgarskata Akademia na Naukite] 23: 1 - 80, Tab. I-II","Chyzer C & Kulczynski W 1897 Araneae Hungariae. Tomus II. pars posterior: Zodarioidae, Agalenoidae, Drassoidae, Zoropseoidae, Dysderoidae, Filistatoidae, Calommatoidae, Theraphosoidae. Academia Scientiarum Hungarica, Budapest. pp. 147 - 366, Tab. VI-X","Drensky P 1929 Paiti (Araneae) otъ Tiнtрaлнa i Юgozapadнa Мakidoнii. Spinnen aus Mittel- und Sudwest-Mazedonien. - Сpiсaнii нa Bълgaрсkata akadiмii нa нaukitѣ [Spisanie na Bulgarskata Akademia na Naukite] 39: 1 - 76, Tab. I-IV","Drensky P 1936 Katalog der echten Spinnen (Araneae) der Balkanhalbinsel. - Сpiсaнii нa Bълgaрсkata akadiмii нa нaukitѣ [Spisanie na Bulgarskata Akademia na Naukite] 32: 1 - 223","Roewer CF 1955 Katalog der Araneae von 1758 bis 1940, bzw. 1954. 2. Band, Abt. a (Lycosaeformia, Dionycha [excl. Salticiformia]). Institut royal des Sciences naturelles de Belgique, Bruxelles. pp. 1 - 924","Bonnet P 1956 Bibliographia araneorum. Analyse methodique de toute la litterature araneologique jusqu'en 1939. Tome II (2 me partie: C - F). Douladoure, Toulouse. pp. 919 - 1926","Oltean C 1973 Genul Chiracanthium C. L. Koch, 1839, in Romania. - Analele Universitatii Bucuresti, Seria Stiintele naturii, Biologie animala 22: 45 - 49","Sterghiu C 1985 Fam. Clubionidae. In: Fauna Republicii Socialiste Romania: Arachnida, Volumul V, Fascicula 4. Academia Republicii Socialiste Romania, Bucharest. 165 pp."]}

Cheiracanthium rupestre Herman, 1879, and Xysticus albomaculatus Kulczyński, 1891, both originally described from Hungary,are among the most rarely reported species of their genera in Europe. Here we report that both of these species have very close relationshipsto similarly uncommon species originally described from France at about the same time. The specimens currently consideredas Cheiracanthium rupestre turn out to be very closely related to, but distinct from, Cheiracanthium striolatum Simon, 1878. However,the original description of C. rupestre does not match these specimens nor any other known species of Cheiracanthium. We thereforeconsider C. rupestre a nomen dubium and suggest that all previous records of this species after the original description actually refer toCheiracanthium macedonicum Drensky, 1921. Xysticus albomaculatus, on the other hand, turns out to be a junior synonym of Bassanianabaudueri (Simon, 1877) syn. nov., expanding the range of this species considerably to the East and at the same time confirming that it isa genuine European species, rather than a recent immigrant from North America as previously suspected.

Four spitting spider species in the genus Scytodes are recorded from the Maghreb: Scytodes annulipes Simon, 1907, stat. n. (elevated to species rank), S. major Simon, 1885, S. velutina HeinekenLowe, 1832 and Scytodes seppoi BosmansVan Keer, sp. n. The male and female of the latter are described and illustrated. No recent records of the commonly cited S. thoracica (Latreille, 1804) can be provided, so earlier citations are considered to be erroneous. Images, illustrations and new distribution data of the other three known species in the Maghreb are given.

Four spitting spider species in the genus Scytodes are recorded from the Maghreb: Scytodes annulipes Simon, 1907, stat. n. (elevated to species rank), S. major Simon, 1885, S. velutina Heineken & Lowe, 1832 and Scytodes seppoi Bosmans & Van Keer, sp. n. The male and female of the latter are described and illustrated. No recent records of the commonly cited S. thoracica (Latreille, 1804) can be provided, so earlier citations are considered to be erroneous. Images, illustrations and new distribution data of the other three known species in the Maghreb are given.

Artanes Thorell, 1870 constitutes a well-defined distal clade within the collective genus Philodromus Walckenaer, 1826 and was assigned to subgeneric rank by Muster (2009). Thereupon Logunov and Kunt (2010) suggested re-elevation of Artanes to genus level, but this proposal is not followed here with reference to the phylogenetic reconstructions presented in Muster (2009). In particular, delineation and synapomorphies of closely related genera and species groups remain to be defined. The west-Palearctic species of the taxon have recently been revised to comprise seven Mediterranean endemics and five more widespread species (Muster 2009). A further species from Turkey was described by Logunov and Kunt (2010) which we had previously considered a geographic variant of P. poecilus (Thorell, 1872) (see remarks on intraspecific variation in this species in Muster 2009). Shortly after publication of the 2009 study, a series of specimens from pine trees in Macedonia, Greece was sampled by a group of Belgian arachnologists that could not be allocated to any of the known species. Due to similarities in the shape of the receptacula, we originally assumed to have found more females and the unknown male of P. pentheri Muster, 2009. However, a close examination revealed important structural differences in the vulvae, most importantly, the newly collected females show a voluminous, sclerotised bursa copulatrix. In this paper we therefore describe a further species, belonging to the P. poecilus group of the Philodromus subgenus Artanes. This is a nice example in illustrating how the availability of a modern revision may trigger new findings.