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Abstract

This paper presents information about ten new alien plant species recorded in Lithuania in the period from 1995 to 2014. These species belong to eight families: Cucurbitaceae (Lagenaria siceraria), Juncaceae (Luzula sylvestris), Lamiaceae (Physostegia virginiana, Sideritis montana), Poaceae (Melica altissima, Miscanthus sacchariflorus), Portulacaceae (Claytonia perfoliata), Scrophulariaceae (Digitalis purpurea), Solanaceae (Datura inoxia) and Zygophyllaceae (Tribulus terestris). Three species (Claytonia perfoliata, Sideritis montana and Tribulus terestris) were introduced accidentally, whereas other seven species were introduced deliberately and later escaped from cultivation. One species, Luzula sylvatica, is ascribed to the group of established aliens, whereas other recorded species are treated as casual. Local establishment of Claytonia perfoliata, Digitalis purpurea and Melica altissima is expected, whereas Miscanthus sacchariflorus can become established and even invasive in the future.

Abstract

Species Composition and Distribution of Oribatids (Acari, Oribatei) in Urbanized Biotopes of Kyiv. Shevchenko, O. S., Kolodochka, L. A. - Species composition and dominance structure of oribatid species complexes on chosen plots in urbanized biotopes of Kyiv are established. Species sensitivity to anthropogenic factors is discussed.

Abstract

During our examination performed in the period from 2010 to 2012, we collected ticks from 52 flocks of sheep and 38 goat flocks. Ticks infestation occured in 15.97% (214/1340) of sheep and 16.93% (107/632) of goats. The result showed the presence of Ixodes ricinus, Rhipicephalus sanguineus, R. bursa, Dermacentor marginatus, D. pictus, Haemaphysalis punctata and Ha. inermis. Additional to determination of tick species during the research, the sex ratio and the monthly influence of microclimate conditions (temperature, relative humidity and precipitation quantity) on the dynamics of populations of ticks were followed. Obtained results indicate the importance of the impact of climatic factors on the population dynamics of some species of ticks as well as the dynamics and abundance of different sexes within established species of ticks.

Skład gatunkowy, budowa i struktura oraz kierunki przemian drzewostanu z udziałem świerka w przygrzbietowej części rezerwatu Madohora w Beskidzie Małym

Abstract

Alien plants are one of the most dynamic and rapidly changing components of flora. Many intentionally introduced plants, which formerly were in cultivation only, now are increasingly found escaped and occur in anthropogenic or seminatural habitats. During field investigations in the southern districts of Latvia in 2014-2016, six new alien plant species were recorded: Allium nutans, Hylotelephium spectabile, Solidago ×niederederi, Symphyotrichum dumosum, S. lanceolatum and S. novae-angliae. To date, four species, Allium nutans, Hylotelephium spectabile, Symphyotrichum dumosum and S. novae-angliae, occur as casual aliens in Latvia. Solidago ×niederederi should be ascribed to the group of established species, whereas Symphyotrichum lanceolatum has naturalized and is potentially invasive. Notes on morphology and identification of species as well as characteristics of the recorded populations are discussed. A note on 20 other alien plant species recorded in wastelands, abandoned meadows and unused arable fields in the south-western part of Daugavpils city is also provided.

associations and effects on established species. - Ecography 33 (3): 494-502. Brotons, L. & Herrando, S. (2001): Factors affecting bird communities in fragments of secondary pine forests in the north-western Mediterranean basin. - Acta Oecologica 22 (1): 21−31. Cherifi, T. (2003): [Bird diversity of Tamentit oasis (central Sahara).] Oral presentation at 7th ornithological conference, 10 March 2003. - National Agronomical Institute, El Harrach, Algiers. (in French) Clergeau, P. & Vergnes, A. (2009): La Perruche a collier Psittacula krameri introduite en Ile

phylogenetic studies of acanthocephalans similar to this research showed that 18S rDNA sequences appear to be suitable marker for phylogenies among acanthocephalans ( García-Varela et al ., 2000 ; Near, 2002 ; Herlyn et al., 2003 ; Verweyen et al., 2011 ; Amin et al., 2019b ). Also, cox1 gene is commonly used for phylogenetic studies and to recognize and establish species limits in acanthocephalans ( Guillen-Hernández et al., 2008 ; Alcántar-Escalera et al., 2013 ; García-Varela, et al., 2013 ). The present study confirmed that this gene has high genetic diversity

partially matching several major bi- ogeographical regions. That means we have a big task ahead of us – i.e. to harmonize so far existing European Pomphorhynchus species with the recently described lineages, re-describe their morphology, and to re-establish species spectrum within the whole Europe including its Peri-Mediterranean and Ponto-Caspian parts. The best way may probably be to use newly acquired acanthoce- phalans from type localities and type fi sh hosts (in the absence of ethanol-fi xed material in museum collections). Further, re-de- scriptions on basis

future,” Anais da Academia Brasileira de Ciências 76, no. 2 (2004): 455-465, on 456. 46 Ranft, “Natural sound archives,” 457. 47 Alström and Ranft, “The use of sounds,” 128. 48 Ibid. 49 Morton L. Isler, Phyllis R. Isler, and Bret M. Whitney, “Use of vocalizations to establish species limits in antbirds (Passeriformes: Thamnophilidae),” The Auk 115, no. 3 (1998): 577-590. 50 These are number of notes, each note being “an unbroken trace in the spectrogram” (Ibid., 580); duration, measured in seconds to the hundredth; pace; change in pace; frequency; change in