Świętokrzyski P ark Narodowy nie był do tej pory obiektem szczególnych zainteresowań ze strony myrmekologów. Nieliczne doniesienia na te m at myrm ekofauny tego teren u można spotkać w pracach K u l m a t y c k i e g o (1920), P i s a r s k i e g o (1961), K r y s z t o f i k a (1962) i D l t j s s k y 'e g o i P i s a r s k i e g o (1971). W ykazane w tych pracach gatunki stanow ią zaledwie 7,5 % fauny mrówek Polski. W tej sytuacji celowe było przeprowadzenie dokładniejszych badań. B adania takie przeprowadzono w latach 1978-80 i 1982. Ich celem było pozna nie składu gatunkowego i stru k tu ry zgrupowań mrówek w głównych środo wiskach Świętokrzyskiego P ark u Narodowego. 1 P raca w y k o n a n a p oza P rob lem em M R . I I -3. t http://rcin.org.pl

L. 1998: Long-distance homing ability in Dusypodu alrercator (Hymenoptera, Melittidae). Ethology 104,421L429. AbstractHoming rates and initial orientations after release from different directions were investigated in the solitary bee Dasypodu ulrrrcator. Homing rates and the proportion of individuals returning on the day of release declined with distance, implying that homing from greater distances is not based solely on the use of landmarks. A long duration of return (often not on the same day) and high efficiency of homing (four bees out of 10 returned from a 4 km distance over the lake), as well as an increase in average return speed h 10 m/min) with distance of bees homing on the same day suggest that homing is also not based upon radial scatter as the sole tactic. This is supported by the observation that the initial orientations of the bees were not equally probable. Departures towards the sun greatly exceeded those away from the sun and the bees also tended to depart in cardinal geographical (or geomagnetic) directions, preferring meridional directions (especially southward) to parallel ones (of which east was preferred). Departure directions did not depend on wind direction but did depend. to some extent, on the landscape features of release sites. However, bees neither tended to depart in the direction of the nest, nor did homing success correlate with the direction of departure in relation to that of the nest.

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We present preliminary data on mitochondrial DNA diversity within and among populations of the ants Lasius niger and Lasius platythorax in Poland. Phylogenetic analysis based on the mitochondrial DNA markers: cytochrome c oxidase subunit I (cox1) and 16S ribosomal RNA (16S rRNA) confirms the species status of L. niger and L. platythorax. Intraspecific variability is low in both species, which might be a result of severe bottlenecks and rapid postglacial expansion into Central Europe.

WstępPierwsze doniesienia na tem at myrmekofauny Pojezierza Mazurskiego pochodzą z lat dwudziestych naszego stulecia ( K r z e m i e n e e w s k i 1927, S k w a rr a 1929). Są to jednak informacje bardzo fragmentaryczne. W latach trzydzies tych dochodzą skąpe dane M i n k i e w i c z a (1935) i bardziej obszerna praca B e gd o n a (1932). (1962, 1963, 1964, 1965, 1977) powiększyły liczbę wykazanych gatunków mrówek, w konsekwencji czego z Pojezierza Mazurskiego znamy obecnie 32 gatunki tych owadów, co stanowi ok. 40 % myrmekofauny Polski.http://rcin.org.pl