Search

Search Results

• Application of molecular genetic methods for birds (literature review)

  37-41

  Zoltán Bagi

  Szilvia Kusza

  Views:

  119

  Ornithology studies have been extended by molecular genetic techniques. In this paper we are dealing with the most common use of areas. Our basic aim is to give a comprehensive view of the most commonly used methods in ornithological studies, including the available results by their use. We also deal with the following areas: an essential step during examination namely the applicability of sample collecting methods, and the unique identification, also the sex determination, methodology of DNA barcoding, as well as the role of molecular methods to protect endangered species. We discussed the advantages and disadvantages of the methods, such as the current trend for each method.

• Chromatometric comparison of Eurasian Collared Dove (Streptopelia decaocto) and Feral Pigeon (Columba livia domestica) feathers

  19-22

  Zoltán Bagi

  János Posta

  Szilvia Kusza

  Views:

  176

  Chromatometric examination of the plumage of birds is a poorly researched topic. We have approached this issue in primarily aspect of differences in plumage of species. Moulted feathers sample collection method has been increasingly used. Reliable identification of feathers becomes an increasingly important issue, hence need for an exact measurement-based methodology. Eurasian Collared Dove (Streptopelia decaocto) and Feral Pigeon (Columba livia domestica) primary, secondary and tail feathers were studied. Chromatometric parameters of feathers were measured in CIELAB color system and then statistical analysis (Independent samples t-test, Descriptive Statistics, Discriminant Analysis) was performed to compare the two species. Instrumental measurements has been confirmed the high similarity between colors of the two species, however species specific differences were also found. Lightless (L*) value were significantly characteristic of particular species, while the red/green (a*) and yellow/blue (b*) value had lower Predictive Power. We identified feathers and the variables which useable to separate the two species and determined the associated Confidence Intervals of these values. Our results may draw attention to a new potential direction for exact identification of the moulted feathers during sample collection.