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Програма на научната конференция - Министерство на ...

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ALIEN SPECIES IN SUBURB ZONE OF STARA ZAGORA (SOUTHBULGARIA) - SYSTEMATIC STRUCTURE, TAXONOMIC ANALYSISOF THE ADVENTIVE FRACTIONS. RadanovaUnit of Botany, Department of Biology and Aquaculture, Agriculture Faculty,Thracian University - Stara Zagora, Students´campus – 6000;Е-mail: syl_rad@yahoo.comOne of the current global phenomena concerning the biologic diversity is the alienplant invasion. The processes of invasions can very clearly be observed in suburbzones where anthropogenic influence is sensible but there are territories withpreserved natural vegetation. The aim of the present study is to establish thesystematic structure of alien species in a cultigenic ecosystem – the forest park“Mitropolit Methodi Koussev” and the taxonomic composition of adventivеfraction. The study is carried out in the period 2007-2010. For description of thespecies diversity, the fixed-road method is applied with transect passages. Theinvasive status is defined by Kuzmanov & Kožuharov (1971), Pyšek & al. (2002).The taxonomic affiliation of the species is based on the works of Jordanov(Ed.)(1963-1995) and Petrova & al. (1999). 325 alien species are identified on theterritory of the forest park, distributed in 227 genera and 67 families. The prevalentspecies are belonging to the Magnoliopsida. The adventive fraction is built up by249 species, belonging to 193 genera and 60 families. The small families prevail,composed of 1-2 species and 1-2 genera. The synanthropic flora in the region,adventive and aboriginal fraction include similar complex of leader families - Fa,As, Po. The list, composed at the inventory, will be used as a data base to definethe level of sinanthropization of the regional flora.12:00-12:15РОЛЯ НА ПАРАЗИТИТЕ В ПРОЦЕСА НА БИОЛОГИЧНАТАИНВАЗИЯБ.Б. Георгиев, Г.П. Василева, П.Н. НиколовЦентрал<strong>на</strong> лаборатория по обща екология, БАН, ул. “Гагарин” № 2,1113 София; Е-поща: bbg@ecolab.bas.bgРазкриването <strong>на</strong> същността <strong>на</strong> процесите в течение <strong>на</strong> биологич<strong>на</strong> инвазия еприоритет <strong>на</strong> съвременните екологични изследвания. Съществуват няколкоалтер<strong>на</strong>тивни хипотези, обясняващи колонизационния успех <strong>на</strong> инвазивнитевидове. Поне две от тях указват съществено място <strong>на</strong> паразитите зарегулиране <strong>на</strong> конкурентните взаимоотношения между <strong>на</strong>шественика иместните видове. Съвместно с испански изследователски екипи отБиологич<strong>на</strong>та станция <strong>на</strong> резервата “Доня<strong>на</strong>” (Севиля) и Института зааквакултури (Кастийон), ние изучаваме ролята <strong>на</strong> ларвите <strong>на</strong> птичи цестодипри регулиране <strong>на</strong> отношенията между инвазивното американскоракообразно Artemia franciscana и местните видове Artemia salina и A.60

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