Search results for "ECOLOGY"

showing 5 items of 15385 documents

Zooloģijas muzeja raksti, Nr. 13 Invertebrata

1975

ЗоологияInsectaLatvijas faunaAnimal ecologyZooloģijaЭкология животныхНасекомыеKukaiņiZoologyDzīvnieku ekoloģija:NATURAL SCIENCES::Biology::Organism biology::Animal physiology [Research Subject Categories]
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Zooloģijas muzeja raksti, Nr. 3 Invertebrata

1968

ЗоологияInsectaLatvijas faunaAnimal ecologyZooloģijaЭкология животныхНасекомыеLatvijas Universitātes profesoriKukaiņiZoologyLūsis JānisDzīvnieku ekoloģija:NATURAL SCIENCES::Biology::Organism biology::Animal physiology [Research Subject Categories]
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Zooloģijas muzeja raksti, Nr. 7 Putni, parazitoloģija, metodika

1971

ЗоологияЭкология животныхPutniПтицыLatvijas faunaAnimal ecologyПаразитологияZooloģijaParazitoloģijaParasitologyZoologyAvesDzīvnieku ekoloģija:NATURAL SCIENCES::Biology::Organism biology::Animal physiology [Research Subject Categories]
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Охрана, экология и этология животных

1986

В сборнике представлены материалы по фаунистическому составу, рас­пространению и экологии редких видов животных, а также видов, имеющих хозяйственное значение, даются рекомендации по увели­чению численности редких животных.

Этология животныхRetie dzīvniekiAnimal ecologyРедкие животныеDzīvnieku uzvedība:NATURAL SCIENCES::Biology::Terrestrial freshwater and marine ecology::Ethology and behavioural ecology [Research Subject Categories]Охрана животныхЭкология животныхDzīvnieku ekoloģija
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The “genetic erosion” of the soil ecosystem

2013

Abstract This paper takes into consideration the influence of human activities on the loss of pedodiversity in a Mediterranean area due to large scale farming. In particular it examines the quantitative and qualitative soil changes in a period of 53 years (from 1955 to 2008) evaluating the loss of soil diversity at soil subgroups level of the USDA Soil Taxonomy system. The following indices were used: richness; Shannon’s diversity index; Simpson diversity index; Shannon’s evenness index; Simpson’s evenness index. In this case study, considering what we observed in time, the human intervention in soil transformation could increase the diversity in the landscape in an initial phase, but forwa…

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