High diversity of siliceous sponges in Western Tethyan areas during the Eocene: palaeobiogeographical, ecological and taxonomic significance

2021 ◽  
Author(s):  
Magdalena Łukowiak ◽  
Andrzej Pisera ◽  
Tetiana Stefanska ◽  
Vadym Stefanskyi
Keyword(s):  
Taxonomic Significance ◽  
Siliceous Sponges ◽  
High Diversity

Taxonomic significance of stomatal complex in the Portulacaceae

1986 ◽  
Vol 97 (11-12) ◽  
pp. 763-766
Author(s):  
Bio Louis Nyananyo
Keyword(s):  
Taxonomic Significance ◽  
Stomatal Complex

Recent Rapid Climate Changes in Antarctic and their Influence on Low Diversity Ecosystems

2010 ◽  
Vol 17 (1) ◽  
pp. 17-30 ◽  
Author(s):  
Katarzyna J. Chwedorzewska
Keyword(s):  
Environmental Variables ◽  
Climate Changes ◽  
Biological Significance ◽  
Global Changes ◽  
Factors Affecting ◽  
Low Diversity ◽  
Main Factors ◽  
The Antarctic ◽  
High Diversity ◽  
Temperature Water

ABSTRACTThe geographic position, astronomic factors (e.g. the Earth’s maximum distance from the Sun during winter), ice cover and altitude are the main factors affecting the climate of the Antarctic, which is the coldest place on Earth. Parts of Antarctica are facing the most rapid rates of anthropogenic climate change currently seen on the planet. Climate changes are occurring throughout Antarctica, affecting three major groups of environmental variables of considerable biological significance: temperature, water, UV-B radiation.Low diversity ecosystems are expected to be more vulnerable to global changes than high diversity ecosystems

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