Distributional Pattern of Two Limpet Groups in the Rock Pool Habitat of the South Saurashtra Coastline, Gujarat, India

2020 ◽  
Author(s):  
Bhavik Vakani ◽  
Rahul Kundu
Keyword(s):  
Distributional Pattern ◽  
Rock Pool ◽  
The South

The distribution of cotton looper (Anomis flava Fabr.) larvae and larval damage on cotton and its relationship to the photosynthetic potential of cotton leaves at the attack sites

1978 ◽  
Vol 29 (2) ◽  
pp. 319 ◽  
Author(s):  
AL Bishop ◽  
PRB Blood ◽  
RE Day ◽  
JP Evenson
Keyword(s):  
Pest Management ◽  
Photosynthetic Capacity ◽  
Management Program ◽  
Distributional Pattern ◽  
The South ◽  
Damage Potential ◽  
Larval Population ◽  
Photosynthetic Potential ◽  
Nucleopolyhedrosis Virus ◽  
Epizootic Disease

Data are given for the distribution of larvae and larval damage of the cotton looper, Anomis flava Fabr., during periods of natural attack on cotton in the south-east Queensland region. A distinct distributional pattern developed in which larvae and major damage to leaves were centrally located on both the horizontal and vertical axes of the plant. The distribution and damage potential of the larval population was subsequently greatly modified by a nucleopolyhedrosis virus epizootic disease commonly recorded in cotton looper populations in the region. Major damage was caused to leaves 14–21 days old which were approximately midway through their photosynthetic capacity range and continuing to decline in photosynthetic importance. The data are considered relative to the inclusion of loopers in a complete pest management program currently being developed for cotton in the south-east Queensland region.

Dynamics of Odontella spp. in the Atlantic Ocean of Nigeria

Nova Hedwigia ◽  
2020 ◽  
Vol 110 (3) ◽  
pp. 227-246
Author(s):  
Medina Omo Kadiri ◽  
Osasere Abike Omoruyi
Keyword(s):  
Atlantic Ocean ◽  
Temporal Distribution ◽  
Marine Phytoplankton ◽  
Distributional Pattern ◽  
Centric Diatom ◽  
The South ◽  
West Region ◽  
South West ◽  
Dry Seasons ◽  
South West Region

Odontella is a planktonic centric diatom widely distributed in saline waters. Although some studies on marine phytoplankton in Nigeria mention the genus, there is a considerable dearth of information on its distribution in the Atlantic Ocean (Nigeria). This paper examined the density, diversity, spatial and temporal distribution of Odontella species in the Atlantic Ocean, in the Bight of Benin and Bight of Bonny (Nigeria). Phytoplankton samples were collected from 10 locations on the stretch of the Atlantic Ocean (Nigeria), in four seasons (dry-wet, wet, wet-dry and dry). Results revealed that eight species of Odontella, namely O. aurita, O. granulata, O. longicruris, O. mobilensis, O. obtusa, O. regia, O. rhombus and O. sinensis occurred in the Atlantic Ocean (Nigeria). The eight Odontella species showed differential distributional pattern, both spatially and temporally. Akwa Ibom location had the highest Odontella abundance in the South-South region while Ondo was highest in the South-West region. Higher Odontella abundance was recorded in the transition seasons (dry-wet and wet-dry seasons) than in the typically wet and dry seasons. The species O. regia was dominant and widely distributed in the South-West region, while O. aurita was dominant in the South-South region. Relatively, the density of O. longicruris was low throughout the Atlantic Ocean (Nigeria) and at all seasons. O. regia and O. sinensis were the most widely distributed species in the Atlantic Ocean (Nigeria) and occurred all through the seasons studied while O. obtusa occurred sparingly throughout all the seasons.

THE NYMPH OF THE MAYFLY GENUS CINYGMA EATON

1930 ◽  
Vol 62 (2) ◽  
pp. 42-45 ◽  
Author(s):  
F. P. Ide
Keyword(s):  
Rock Pool ◽  
The South ◽  
Deep Rock

In early June of the summer of 1928 an immature nymph of the genus Cinygma was dredged from tlie sedges along the edge of a mill pond at Horning's Mills, Ontario. All attempts to get more material here were unsuccessful. Next year, however, on June 7, I met with some full-grown nymphs in a deep rock-pool by the edge of a stream which flows into Lake Nipissing, Ontario from the south. About fifteen individuals were reared between the 10th and the 20th of June and the species proved to be Cinygma bipunctata McD. The description of the type fits these individuals very well.

Presidential Republicanism in the South, 1960

1962 ◽  
Vol 24 (2) ◽  
pp. 303-322 ◽  
Author(s):  
Bernard Cosman
Keyword(s):  
The South

Long-term Cyclic Variations of Prominences, Green and Red Coronae over Solar Cycles

2000 ◽  
Vol 179 ◽  
pp. 201-204
Author(s):  
Vojtech Rušin ◽  
Milan Minarovjech ◽  
Milan Rybanský
Keyword(s):  
Emission Lines ◽  
High Latitudes ◽  
Green Line ◽  
Solar Cycles ◽  
The South ◽  
Coronal Emission ◽  
Local Maxima ◽  
The North ◽  
Cyclic Variations

AbstractLong-term cyclic variations in the distribution of prominences and intensities of green (530.3 nm) and red (637.4 nm) coronal emission lines over solar cycles 18–23 are presented. Polar prominence branches will reach the poles at different epochs in cycle 23: the north branch at the beginning in 2002 and the south branch a year later (2003), respectively. The local maxima of intensities in the green line show both poleward- and equatorward-migrating branches. The poleward branches will reach the poles around cycle maxima like prominences, while the equatorward branches show a duration of 18 years and will end in cycle minima (2007). The red corona shows mostly equatorward branches. The possibility that these branches begin to develop at high latitudes in the preceding cycles cannot be excluded.

Sign in / Sign up

Export Citation Format

Share Document