Relevant Taxa Research Articles

Aprpaoches to airborne pollen in SE spain. First survey in murcia: one year of pollen monitoring (1993–94)

First data from a pollen survey carried out in the city of Murcia (SE Spain) are given in this paper. Using a Burkard Volumetric Spore Trap, daily slides were prepared and 80 pollen types belonging to 51 families andAlternaria spores were identified and counted. Special attention was paid to 14 relevant taxa: Cupressaceae,Pinus, Genisteae,Olea, Morus, Acer, Platanus, Plantago, Quercus, Urticaceae, Poaceae, Chenopodiaceae,Artemisia andAlternaria. The main sources of airborne particles wereAlternaria (27.7%), Cupressaceae (13.5%),Olea (9.36%), Chenopodiaceae (8.31%) and Urticaceae (5.8%). Annual variations in pollen abundance and length of the flowering seasons are given for individual species and are related to environmental factors. Results indicate a main pollen season from March to June and a second minor season in September to October. The relatively high concentrations of Genisteae and the appearance of anArtemisia winter season were noted.

The cybotoid anoles and Chamaelinorops lizards (Reptilia: Iguanidae): evidence of mosaic evolution

Recent immunological comparisons involving the Hispaniolan Chamaelinorops and Anolis suggested that Chamaelinorops might be much more closely related to Hispaniolan species of Anolis than previously thought. Electrophoretic comparisons among the relevant taxa, coupled with a review of both the morphological and immunological data, suggest mosaic evolution may be responsible for the nonconcordance between some of the data sets. An example of significant morphological change with little electrophoretic differentiation was found in the A. cybotes-A. shrevei comparison while the converse was found in the A. cybotes-A. marcanoi comparison. Many of the character states that have been interpreted as implying close genealogical relationship between Chamaelinorops and other Hispaniolan anoles are known to be primitive and may be evolving slowly in these lineages.