Suspension feeding in ciliated protozoa: Feeding rates and their ecological significance

1980 ◽  
Vol 6 (1) ◽  
pp. 13-25 ◽  
Author(s):  
Tom Fenchel
Keyword(s):  
Suspension Feeding ◽  
Ciliated Protozoa ◽  
Ecological Significance ◽  
Feeding Rates

Comparative physiology of suspension-feeding in living brachiopods and bivalves: evolutionary implications

Paleobiology ◽  
1993 ◽  
Vol 19 (3) ◽  
pp. 322-334 ◽  
Author(s):  
Melissa Clark Rhodes ◽  
R. J. Thompson
Keyword(s):  
Body Size ◽  
Fossil Record ◽  
Benthic Communities ◽  
Suspension Feeding ◽  
Metabolic Rates ◽  
Comparative Physiology ◽  
Feeding Rates ◽  
Bivalve Molluscs ◽  
Significant Component ◽  
Experimental Conditions

This paper presents scaling equations relating suspension-feeding rates to body size for articulate brachiopods and bivalve molluscs, two classes which represent a significant component of the fossil record of marine benthic communities. Clearance (feeding) rates of five species of living articulate brachiopods and three species of epifaunal suspension-feeding bivalve molluscs collected from mid-latitude fjords of Newfoundland and New Zealand were measured in similar experimental conditions. In comparisons within and between the two classes, we found that both plectolophous and spirolophous brachiopods had significantly lower feeding rates than mytilids, which are filibranchs, but that a sympatric primitive eulamellibranch veneroid bivalve had rates comparable to the brachiopods. Articulate brachiopods do not appear to feed effectively at the high algal concentrations which bivalves can exploit. The data on comparative suspension-feeding rates support the hypothesis that past changes in diversity and distribution of bivalves and brachiopods may be related to an overall increase in energy flux and escalation of metabolic rates during the Phanerozoic.

Determination of cellular rate distributions in microbial cell populations: Feeding rates of ciliated protozoa

1993 ◽  
Vol 42 (3) ◽  
pp. 284-294 ◽  
Author(s):  
Christos Hatzis ◽  
Pamela J. Sweeney ◽  
Friedrich Srienc ◽  
A. G. Fredrickson
Keyword(s):  
Microbial Cell ◽  
Cell Populations ◽  
Ciliated Protozoa ◽  
Feeding Rates

ECOLOGICAL SIGNIFICANCE OF PHEROMONES

2020 ◽  
Vol 6 (2) ◽  
pp. 64-68
Author(s):  
Nondira Khondhodjayeva ◽  
◽  
Nurmamat Rajabov ◽  
Keyword(s):  
Biological Significance ◽  
Ecological Significance ◽  
Definition Of

This article reveals the essence of the concept of "pheromones" and their biological significance. In the article variants of their application in agriculture for struggle against insects-pests are presented. The definition of term and classification of pheromones and their types are given: feromons of insects, feromons of fish, feromons of vertebrates, feromons of humans, fermons of plants, sexual feromons, anxiety feromons, trace feromons, epidemic feromons and their functions and significance for the representative's organism and the environment as a whole

PALAEO-ECOLOGICAL SIGNIFICANCE OF PALAEOCENE CALCAREOUS ALGAE FROM THE CAUVERY BASIN, INDIA

1970 ◽  
Vol 11 (1) ◽  
Author(s):  
S. Kishore
Keyword(s):  
Key Words ◽  
Tidal Flat ◽  
South India ◽  
Distribution Patterns ◽  
Calcareous Algae ◽  
Ecological Significance ◽  
Cauvery Basin ◽  
Ecological Information

Palaeocene limestone of the Ninniyur Formation of the Cauvery Basin contains abundant well-preserved calcareous algae. These various types of calcareous algal seem to be controlled by the characteristics of each type environments in which they developed and thus they provide useful palaeo-ecological information of the Ninniyur Formation. The distribution patterns of these groups of calcareous algae, extending from tidal flat to reefal environments have been observed in the Palaeocene of the Ninniyur Formation, Cauvery Basin South India. Key words: Ninniyur formation, Calcareous algae, Palaeoecology. Ecoprint Vol.11(1) 2004.

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