2 research outputs found

    Influence of Vegetation on the Avifauna in Two

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    Abstract. This study is related to the investigation of the impact that vegetation caused on the avifauna of the parks “Lauta ” and “Tsar Simeon Garden ” located in the city of Plovdiv, Bulgaria. As a result of the study, we found that the biodiversity of the vegetation in park “Tsar Simeon Garden ” is highly significant in comparison with the same in park “Lauta”. In the park “Tsar Simeon Garden ” introduced plant species dominate over indigenous species, as compared with the park “Lauta”. The differences in the vegetation are caused by different management approaches carried out in the both parks. The degree of similarity between trees and bushes in both parks is low. The vegetation also had a significant influence on the avifauna living within the parks. The avian biodiversity in park “Lauta ” is two times higher in comparison with the avian biodiversity in park “Tsar Simeon Garden”. The degree of similarity in the avifauna between both parks is significant, due the fact that all of the species, except one documented in “Tsar Simeon Garden” being documented in park “Lauta ” as well. Eighteen new species of birds were recorded and described for the first time in the city of Plovdiv. The conservation status of the avifauna in park “Lauta ” is quite significant in comparison with the same in park “Tsar Simeon Garden”. Key words: avifauna; birds; vegetation; native; introduced; indigenous; urban park

    Assessment of the Threats to the Biodiversity and Habitats in “Stara Reka ” Reserve (Bulgaria) and Its Adjacent Subalpine and Alpine Areas

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    Abstract. The assessment of the threats in the “Stara Reka ” reserve and its adjacent subalpine and alpine areas is important since it makes it possible the appropriate conservation measures to be taken in order to prevent or reduce the negative effects on the biodiversity and habitats. The assessment was based on systematic studies and visits in the “Stara Reka ” Reserve, located within National Park “Central Balkan ” (Bulgaria), during spring, summer and autumn seasons of 2010-2011. A number of threats were recorded, where those by anthropogenic origin were predominating. Tourists have negatively influenced the wild plants such as Allium ursinum, Inula helenium and Primula frondosa by picking them up. Damages were registered on the information system and signs. Waste disposal, fires, poaching and illegal fishing were also some of the recorded threats. Many natural succession changes quite dynamically vary the habitats in the reserve, but the most dangerous for the biodiversity and degradation of habitats remain fires, erosion and introduction of alien species