Биология

The list of rare and disappearing fungus and lichens species to be included into the third edition of the Red Book of Saratov region has been compiled on the basis of modern field surveys, collection data, analysis of literature. It contains 19 representatives of mycoflora belonging to 11 families and 6 representatives of lichen flora belonging to 3 families. The necessity to extend and modify the list of protected taxa is substantiated compared with the previous edition.

A list of algae, mossy, pteridophytes and gymnosperm plant species to be included into the third edition of the Red Book of the Saratov region is proposed (1 species of algae, 15 mossy species, 13 pteridophytes, 1 gymnosperms). The necessity to correct and extend the protected taxon list in comparison with the second edition is substantiated. Principles of taxon selection for the third edition are discussed.

A list of 277 flowering plant species to be included into the third edition of the Red Book of the Saratov region is proposed. The necessity to correct and extend the protected taxon list in comparison with the second edition is substantiated. Principles of taxon selection for the third edition are discussed.

The list of species of water invertebrates and the amphibiotic insects is analysed by results of the long-term researches in 2006 – 2015. Effects of climate transformation and change of the hydrological treatment on a condition of water ecosystems and population of such species are shown. The key factors causing negative consequences for ecosystems of the rivers, floodplain lakes and temporary waterbodies serving as biotopes of rare and endangered species of hydrobionts are defined.

In article gave the information of rare and endangered species of terrestrial groups of invertebrates recommended for including in the third edition of the Red book of the Saratov Province (RBSP). Also lists species that should be removed from the list of protected species for several established reasons. The main publications over the past 10 years from the time of release the second edition of RBSP on the population dynamics and distribution of endangered species in the region.

Rare and disappearing species Cephalaspidomorphi and fich to be included into the third edition of Red Book of the Saratov region has been compiled on the basis of modern field surveys, collection data, analysis of literature. It contains 2 species cephalaspidomorphi and 16 species fich.

Rare and disappearing species reptiles to be included into the third edition of Red Book of the Saratov region has been compiled on the basis of modern field surveys, collection data, analysis of literature. It contains 7 herpetofauna representatives of region belonging to 3 orders and 5 families.

A list of bird species recommended for inclusion in the third edition of the Red Book of the Saratov region. Three groups stand out among the rare and protected bird species are introduced for the first time – 10; excluded –14; with the change in status – 22.

The list of species of the mammals recommended for entering into the third edition of the Red List of the Saratov region is provided. The necessity to correct and extend the protected taxon list in comparison with the second edition is substantiated.

In the article parameters of photosynthetic apparatus and dependence of the efficiency and rate of photosynthesis on irradiance in flowering plant – parasitic dodder Cuscuta campestris colonized by gallinducing insect from the family of weevils Smicronyx smreczynskii were determined for the first time. Gall formation by Smicronyx smreczynskii is supposed to lead to the increase in the photosynthesis efficiency by the increase in the number of reaction centers of photosystem II of the dodder Cuscuta campestris