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

1970 ◽  
Vol 11 (1) ◽  
Author(s):  
S. Kishore

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.

1970 ◽  
Vol 12 ◽  
pp. 59-63
Author(s):  
S. Kishore ◽  
S. K. Singh

The sediments of the Ninniyur formation (Paleocene) are characterized by exceptionally rich of calcareous algae. The present paper deals morphotaxonomical, palaeoecological and palaeogeographical aspects of the Polystrata alba (red algae). Polystrata alba (Pfender) Denizot is belonging to the family Peyssonneliaceae of the class Rhodophyceae. It is extent taxa, wide geographic distribution and known from early Cretaceous-Recent of the different part of the world. Key Words: Polystrata Alba; Palaeocene; Ninniyur; Formation; Cauvery Basin doi: 10.3126/eco.v12i0.3197 Ecoprint: An International Journal of Ecology 12: 59-63, 2005


2014 ◽  
Vol 4 (1) ◽  
pp. 75
Author(s):  
Andrés Arias Alzate ◽  
Juan D. Sanchez Londoño ◽  
Juan M. Daza ◽  
José F. González Maya

AbstractThe Silvery-brown Tamarin, Saguinus leucopus, is a primate species from the Callitrichidae family, endemic to Colombia, and that has very little ecological information. Here we report on a new dietary component for the species from Departamento de Caldas, Colombia, been the first record of S. leucopus predating an amphibian species (Phyllomedusa venusta). Despite some records exist about tamarin predation on amphibians, this is the first for this endemic species, and it is probably related with its foraging type. This record represents a noteworthy record and contributes to the knowledge of the natural history of this species. Key words: Andes, Callitrichidae, Colombia, Diet, Primates, Predation.Palabras clave: Andes, Callitrichidae, Colombia, Depredación, Dieta, Primates


2006 ◽  
pp. 35-40 ◽  
Author(s):  
Mu Ramkumar

Sedimentary structures in the Kallankurichchi Formation of the Ariyalur Group, South India have been examined with a view of assessing the depositional setting of these rocks. Of the different sedimentary structures such as cross bedding, cut and fill, etc., hummocky cross stratification is significant as it resulted from a major storm event. This paper deals with the recognized sedimentary structures, their genesis and environmental implications.


2020 ◽  
Vol 14 (2) ◽  
pp. 54-63
Author(s):  
HARIHARAKRISHNAN SANKARARAMAN ◽  
J ALFRED DANIEL ◽  
SAGADAI MANICKAVASAGAM ◽  
GERARD PENNARDS

The bee mimicking hover fly genus Volucella Geoffroy, 1762 and the potter wasp mimicking genus Monoceromyia Shannon, 1922 are reported for the first time from South India. Brief diagnosis of Volucella trifasciata Wiedemann, 1830 and Monoceromyia javana (Wiedemann, 1824), high-resolution images of the habitus and other important characters, as well as notes on their distribution, mimicry and biology are provided. Key words: Volucella, Monoceromyia, batesian mimicry, new record, range extension 


1970 ◽  
Vol 4 (6) ◽  
pp. 70-74 ◽  
Author(s):  
Ajaya Nagarkoti ◽  
Tej Bahadur Thapa

The distribution pattern and habitat preference of barking deer (Muntiacus muntjac Zimmermann) were analyzed during spring and rainy seasons of 2005 in Nagarjun Forest, Kathmandu. A total of 14 observations (seven males and seven females), 247 pellets and 118 footprints of barking deer were recorded in the spring and 14 observations (nine males and five females), 151 pellets and 140 footprints were recorded during the rainy season. The result showed uneven or clumped distribution patterns for deer in both spring (S2√X = 331.03 > 1; Χ² = 331.02, p = 0.01) and rainy season (S2√X = 233.48 > 1; Χ² = 233.48, p = 0.01). Among four types of habitats (Schima wallichii forest, mixed broadleaved forest, pine forest and dry oak forest), the mixed broadleaved forest was much preferred in spring (RPI = 0.81) and pine forest during the rainy season (RPI = 0.15). Key words: Barking deer, Muntiacus muntjac, distribution, habitat preference, Nagarjun forest, Nepal Himalayan Journal of Sciences Vol.4(6) 2007 p.70-74


1985 ◽  
Vol 65 (2) ◽  
pp. 239-247
Author(s):  
R. L. KUSHWAHA ◽  
W. B. REED

Soil surface distribution patterns of herbicide granules from a Gandy dribble type applicator were determined under different wind velocities in the laboratory and verified in the field. Results indicted that a combined operation of application and incorporation during seeding with a discer would not provide satisfactory placement of granules assuming wind velocities that occur normally in Saskatchewan during the seeding period. Key words: Wind, discer, herbicide granules, incorporation


2020 ◽  
Author(s):  
Ramkumar Muthuvairavasamy ◽  
Numair Ahmed Siddiqui ◽  
Jyotsana Rai ◽  
Bhawani Singh G. Desai ◽  
David Menier

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