Abstract
Multimodal ecoinformation analysis as an modern computative approach to geospatial investigation of biodiversity structure is performed on maximum entropy method for local populations of Iris glaucescens -rare species of vascular plants that is included in Red Book of Novosibirsk Oblast. The most informative environmental variables were ranged and examined in detail. According to obtained results, trio of the most important variables in the scale of 1/12 arc-degree (5.0 arc-minutes) global model, includes: 1) maximum average diurnal tempreature of surface air in the warmest period of an year (bio5) – 32.7%, annual mean temperature of surface air (bio1) – 11.2%, and maximum average diurnal tempreature of surface air in July (tmax7) – 9.0%. Three of the most important variables in the scale of 1/60 arc-degree (1.0 arc-minutes) regional model (Zone_18) are: maximum average diurnal tempreature of surface air in the warmest period of a year (bio5) -35.7%, maximum average diurnal tempreature of surface air in Juny (tmax6) – 23.1%, minimum average diurnal tempreature of surface air in October (tmin10) – 7,7%. Therefore, climatic variables that influense on the amount of heat in the warmest period of a year, may be taken into account as factors, limiting population size of I. glaucescens.
Highlights
Iris glaucescens Bunge is the rare species of vascular plants included in the Red List of the Novosibirsk region
The purpose of this scientific research is the ecoinformative multimodal assessment of the general environmental situation in the area of Iris glaucescens in Novosibirsk Oblast, with determination the set of the most influential climatic variables limiting its distribution on this territory, and quantitative analysis of variables position in climatic spectra
The warmest period of an year consists of June, July, and August in the southern parts of the territory of Novosibirsk Oblast, and July is the most important among them
Summary
Modelling of an geospatial pattern for any chosen biological taxa is the actual task in rational nature using and bioresources saving, because for effective conservation of any rare and endangered species we need at first to see in what climatic conditions the it prefers to live, and what are its specific requirements for survival, its ecological niche [1, 2].Iris glaucescens Bunge is the rare species of vascular plants included in the Red List of the Novosibirsk region.According to the published data [3, 4], the climatic factors limiting the number of populations of this species on territories of Novosibirsk oblast are not defined still.The purpose of this scientific research is the ecoinformative multimodal assessment of the general (total) environmental situation in the area of Iris glaucescens in Novosibirsk Oblast, with determination the set of the most influential climatic variables limiting its distribution on this territory, and quantitative analysis of variables position in climatic spectra.To achieve this goal, the following tasks were set: 1) build global and regional models of an area of the species in different scales; 2) develop the protocol for assessing the level of favorable environmental conditions in and around the locality; 3) build climate spectra for each obtained model; 4) range the most influential climate variables and quantify them in different models; 5) determine the factors limiting the distribution of the species on the territory of Novosibirsk region. According to the published data [3, 4], the climatic factors limiting the number of populations of this species on territories of Novosibirsk oblast are not defined still The purpose of this scientific research is the ecoinformative multimodal assessment of the general (total) environmental situation in the area of Iris glaucescens in Novosibirsk Oblast, with determination the set of the most influential climatic variables limiting its distribution on this territory, and quantitative analysis of variables position in climatic spectra.
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