Data on Protected and Insufficiently Known Insect Species Obtained from the Invertebrate Monitoring in Latvia (2015 – 2016)
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Acta Biol. Univ. Daugavp. 16 (2) 2016 ISSN 1407 - 8953 DATA ON PROTECTED AND INSUFFICIENTLY KNOWN INSECT SPECIES OBTAINED FROM THE INVERTEBRATE MONITORING IN LATVIA (2015 – 2016) Maksims Balalaikins, Uldis Valainis, Nikolajs Savenkovs, Kristīna Aksjuta Balalaikins M., Valainis U., Savenkovs N., Aksjuta K. 2016. Data on protected and insufficiently known insect species obtained from the invertebrate monitoring in Latvia (2015 – 2016). Acta Biol. Univ. Daugavp., 16 (2): 139 – 150. The current paper presents data on new findings of 66 protected or insufficiently known insect species found in Latvia during invertebrates monitoring activities in years 2015-2016. One species, Amara nigricornis Thomson, 1857 (Carabidae), is reported for the first time for the local fauna Key words: biodiversity monitoring, insects, Latvia, fauna, new records, protected species. Maksims Balalaikins, Uldis Valainis, Nikolajs Savenkovs, Kristīna Aksjuta. Institute of Life Sciences and Technology, Daugavpils University, Vienības 13, LV-5401 Daugavpils, Latvia, E-mail: [email protected] Nikolajs Savenkovs. Latvian Museum of Natural History, K. Barona iela 4, Rīga, LV-1050, Latvia, E-mail: [email protected] INTRODUCTION carried out in Switzerland (Hitterman et al. 2000), United Kingdom (Smallshire & Beynon 2009), The studies devoted to the invertebrate diversity The Netherlands (Bouwman et al. 2009) and research in Latvia predominantly occurred United States (Panzer et al. 2005). The monitoring in recent past and were mainly focused on of butterflies species is carried in many European protected nature areas that forms a strong bias countries: The Netherlands, United Kingdom, for providing a complete view on the protected Switzerland, Sweden, France, Portugal, Germany, species occurrence in Latvian fauna. Also, there Estonia, etc. (Elberg 1999, Van Swaay 2007). The is a lack of information about temporal changes moths monitoring is carried out in Finland since in abundance and range shifts due to climate 1993 using light traps method (Söderman, 1994, change. Such data can be obtained on the basis Söderman et al. 1999). Similar methods are used of the results of species monitoring carried for the control of separate moth species or groups out throughout the country. The monitoring of species (pests, as well as rare and protected of invertebrates is a part of various national species) (Kruus & Viidalepp 2001). The ground programs that are targeted on enhancement of beetles is a broad group of entomophagous insects biodiversity conservation. Various monitoring that have a critical role in various habitats. The programmes targeted on research of different beetles of this family belong to various ecological groups of invertebrates already been carried out groups and have different requirements in respect all over the Europe. Dragonflies monitoring is of the environmental factors: pollution, amount of 139 Balalaikins M., Valainis U., Savenkovs N., Aksjuta K. food, quality of soil, type of vegetation and use route for butterflies accounting, one light trap of various chemicals (Döring et al. 2003). For station and ten dragonflies accounting polygons these reasons the ground beetles were selected were applied (Fig. 2). for conducting the respective monitoring activity. Invertibrate monitoring potentially can provide a Monitoring of ground beetles chance to sudy and to understand which habitats and which species are good representatives The material was collected using a pitfall traps for the whole country. During invertebrate method. Pitfall traps were filled with the 50 % monitoring, data on currently protected species solution of ethylene glycol. Ten pitfall traps and species that potentially might be protected with 7 cm hole in diameter and 9 cm high, were in future needs to be collected, as well as other placed in each of four linear transects. The traps valuable information that can be used during the were placed along the transect with 2 m distance elaboration of conservation plans for particular from each other. In each square transects were species in future. applied according to one principle (Fig. 2). Pitfall traps were active only during the period of peak activity of carabid beetles, two times per MATERIAL AND METHODS season - two weeks in early summer and at the end of summer season. All material was collected The monitoring was implemented according to and determined in laboratory. The material was the national invertebrate monitoring methodology processed focusing mainly on rare and protected (Valainis et al. 2009), with several amandments species. during the approbation. The monitoring sites were located in 15 square shaped study plots all over Monitoring of butterflies the country (Fig. 1). The arrangement of sites was selected for the purpose of data extrapolation The monitoring of butterflies was based on for whole territory of Latvia afterwards. In each surveys with species accounting using route square four transects with the pitfall traps, the method. In each square one or more pre-marked Fig. 1. The layout of invertebrate monitoring sites in Latvia. 140 Data on protected and insufficiently known insect species obtained from the invertebrate monitoring in Latvia routes in a total length of 2 km were surveyed. from 25 May to 10 June, from 15 June to 30 During the first year of monitoring, routes were June, from 15 July to 30 July. Dragonfly species revised, where it was necessary. All butterfly mainly were determined in flight. Also, collected species 4-5 m on each side of route central and determined in laboratory, if it was necessary. line and 4-5 meters ahead were recorded. The monitoring of species was carried out three times Moth monitoring a year during the following periods: from 25 May to 10 June, from 15 June to 30 June, from 15 July The monitoring was based on data collection to 30 July. Butterflies mainly were determined using standartised light trap method. In each in flight. Also, collected and determined in square a light traps station was mounted, facing laboratory, if it was necessary. the needs for electricity. Samples were collected from 15 June to 15 August. The traps were Monitoring of dragonflies checked once a week. All material was collected and determined in laboratory. The monitoring was based on dragonfly species accounting in the territory with pre-marked RESULTS polygons. In each square ten species accounting polygons in suitable habitats for dragonfly In years 2015 and 2016 the monitoring of four species were pre-marked. During the first year insect groups (butterflies, moths, dragonflies and of monitoring, polygons were revised, if it was ground beetles) in 15 square shaped study plots necessary. The size of each polygon was 10x10 all over the country was carried out. Leading meters. All dragonfly species occurred in a experts on species groups were involved into polygon were recorded during 5 - 10 minutes current study to assure reliability of collected time period. The monitoring was carried out data. As a result of first two years, several three times a year during the following periods: records of new localities on different protected Fig. 2. The spatial arrangement scheme of the monitoring activities in one of the squares. 141 Balalaikins M., Valainis U., Savenkovs N., Aksjuta K. invertibrate species were reported, including Lestidae Calvert, 1901 14 protected Lepidoptera and Odonata species, Lestes virens (Charpentier, 1825) – Vecumnieku of them five species (Leucorrhinia pectoralis, munic., Lake Zāļezers, 24° 34’ 4.565” E Ophiogomphus cecilia, Coenonympha hero, 56° 28’ 18.202” N, 03.07.2015 (1, Z. Striķe), 24° Euphydryas aurinia and Lycaena dispar) are 34’ 9.020” E 56° 28’ 21.770” N, 27.07.2015 (1, protected by the Habitat Directive, and included Z. Striķe), 24° 34’ 9.862” E 56° 28’ 29.741” N, in Annex II (the Council Directive 92/43/EEC 27.07.2015 (1, Z. Striķe), 24° 33’ 42.068” E 56° of 21 May 1992), four species (Leucorrhinia 28’ 40.841” N, 03.07.2015 (1, Z. Striķe). albifrons, Leucorrhinia caudalis, Parnassius mnemosyne and Lopinga achine) are included Libellulidae Rambur, 1842 in Annex IV of current Directive. Twelve of reported species are protected according Leucorrhinia albifrons (Burmeister, 1839) – to local legislation. During the monitoring Auce munic., Mazēnu quarry, 22° 59’ 7.765” E activities one species, Amara nigricornis 56° 26’ 18.751” N, 11.06.2015 (1, U. Valainis), Thomson, 1857, (Carabidae) was registered for 22° 59’ 7.687” E 56° 26’ 19.218” N, 03.07.2015 Latvia for the first time and is reported as new to (1, U. Valainis); Ilūkste munic., Lake Cabišku, local invertibrate biota. 26° 5’ 26.858” E 56° 0’ 24.050” N, 28.06.2015 (1, K. Aksjuta, K. Daudziņa), 26° 5’ 14.436” E List of species 56° 0’ 26.223” N, 28.06.2015 (1, K. Aksjuta, K. Daudziņa), 26° 5’ 26.858” E 56° 0’ 24.050” N, Odonata Fabricius, 1793 27.07.2016 (1, I. Jakubāne), Madona munic., to the E from Garanči, 26° 9’ 59.737” E 56° Aeshnidae Rambur, 1842 54’ 26.343” N, 03.06.2015 (1, K. Aksjuta, K. Daudziņa); Rugāji munic., River Itenis oxbow, Anax imperator (Leach, 1815) – Ilūkste munic., 26° 58’ 8.779” E 56° 54’ 11.693” N, 09.06.2016 Cabišku Lake, 26° 5’ 30.197” E 56° 0’ 30.235” (1, D. Vasiļevskis). N, 16.06.2016 (1, I. Jakubāne); Talsi munic., Lake Uguņezers, Berģi, 22° 56’ 55.090” E 57° Leucorrhinia caudalis (Charpentier, 1840) 22’ 7.058” N, 03.06.2016 (1, A. Lanka), Uguņu – Krāslava munic., E shore of Lake Lielais Priednieki, 22° 57’ 0.995” E 57° 22’ 24.343” N, Gusena, 27° 37’ 36.690” E 55° 57’ 54.910” 03.06.2016 (1, A. Lanka). N, 10.06.2015 (1, R. Cibuļskis); Vecumnieku munic., Lake Zāļezers, 24° 33’ 59.990” E 56° Gomphidae Rambur, 1842 28’ 16.974” N, 5.06.2016 (1, Z. Striķe). Ophiogomphus cecilia (Fourcroy, 1785), Leucorrhinia pectoralis (Charpentier, 1825) – Limbaži munic., River Aģe, 24° 38’ 16.093” Auce munic., Mazēnu quarry, 22° 59’ 7.765” E E 57° 21’ 53.823” N, 19.07.2015 (1, L.