Spatio-temporal complexity in semiconductor lasers due to longitudinal and transverse multimode instabilities

2005 ◽  
Author(s):  
M. Munkel ◽  
F. Kaiser ◽  
M. Ziegler ◽  
I. Fischer ◽  
O. Hess
Keyword(s):  
Semiconductor Lasers ◽  
Temporal Complexity ◽  
Spatio Temporal

scholarly journals Simplicity or complexity? Important aspects of high nature value grassland management in nature conservation

2021 ◽  
Author(s):  
Róbert Kun ◽  
Dániel Babai ◽  
András István Csathó ◽  
Csaba Vadász ◽  
Nikoletta Kálmán ◽  
...  
Keyword(s):  
Nature Conservation ◽  
Plant Diversity ◽  
Management Practices ◽  
Grassland Management ◽  
Plant Functional Types ◽  
Higher Plant ◽  
Temporal Complexity ◽  
Functional Types ◽  
Management Factors ◽  
Spatio Temporal

AbstractLocal, adaptive traditional grassland management systems have played a fundamental role in the creation, maintenance and conservation of high nature value (HNV) grasslands. The state of diverse HNV grasslands has deteriorated across Europe in conjunction with changes in various management factors, such as management type and management intensity. To conserve the species-rich vegetation of HNV grasslands and to avoid undesirable shifts in plant functional type dominance, it is important to explore the effects of management factors crucial for nature conservation and to adapt them to local circumstances. In our study, we focus on three of the main factors in the management of valuable meadow steppes in the Great Hungarian Plain region (Central Hungary). We studied management types (mowing, grazing and combined), different levels of herbage removal intensity (low, medium, high) and spatio-temporal complexity (low, medium and high) of grassland management. Altogether 172 plots (1 m × 1 m) were designated in 17 sites. Plant diversity indexes and plant functional types were calculated according to the presence and percentage cover of plant species in the plots. Regarding plant diversity and the dominance of plant functional types, herbage removal intensity and spatio-temporal complexity of management had, for the most part, stronger effects than the type of management. Higher spatio-temporal complexity of management resulted in higher plant diversity, while higher intensity of management led to significantly lower diversity. Proper application of type, intensity and spatio-temporal complexity of management practices (separately and in combination) proved to be determining factors in the long-term maintenance and conservation of diversity and species composition of HNV grasslands.

scholarly journals Spatio-temporal complexity of chimpanzee food: How cognitive adaptations can counteract the ephemeral nature of ripe fruit

2016 ◽  
Vol 78 (6) ◽  
pp. 626-645 ◽  
Author(s):  
Karline R.L. Janmaat ◽  
Christophe Boesch ◽  
Richard Byrne ◽  
Colin A. Chapman ◽  
Zoro B. Goné Bi ◽  
...  
Keyword(s):  
Ripe Fruit ◽  
Temporal Complexity ◽  
Spatio Temporal
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