scholarly journals The diversity of wood-boring beetles caught by different traps in northern forests of Iran

2018 ◽  
Vol 2 (2) ◽  
pp. 65-74
Author(s):  
H. BARIMANI VARANDI ◽  
M. KALASHIAN ◽  
H. BARARI ◽  
S. A. REZAEI TALESHI
Keyword(s):  
Population Density ◽  
Dominant Species ◽  
Sticky Trap ◽  
Malaise Trap ◽  
Mazandaran Province ◽  
Trap Color ◽  
Different Types ◽  
Northern Forests ◽  
Survey Evaluation ◽  
Wood Boring

Varandi HB, Kalashian M, Barari H, Rezaei Taleshi SA. 2018. The diversity of wood-boring beetles caught by different traps in northern forests of Iran. Trop Drylands 2: 65-74. Efficacy of trap types is an important factor for sampling, faunistic survey, evaluation of the population density, seasonal dynamic and monitoring of wood-boring beetles. In the present research, the diversity of Wood-boring beetles (i.e., Buprestidae and Cerambycidae) was studied by using different types of trap (window trap, color pan trap, color sticky trap and Malaise trap) in northern forests of Iran (Mazandaran Province, Iran). Different types of traps employed in five study areas, collected a total of 3120 beetles belonging to 55 species (29 Buprestidae and 26 Cerambycidae). The majority of captured specimens were buprestid beetles (79.87%), while only one-fifth of the specimens were Cerambycidae (20.13%). All of the collected beetle specimens were identified to species's level. One genus (Agrilus spp) and the following five species were the dominant species: Acmaeodera rufoguttata Reitter, Anthaxia hyrcana Kiesenwatter et Kirsch, Anthaxia intermedia Obenberger, Chrysobothris affinis (Fabricius) and Stenoprerus rufus (Linnaeus).

Canadian Exceptionalism: Explaining Differences over Time in Provincial and Federal Voter Turnout

2001 ◽  
Vol 34 (2) ◽  
pp. 299-319 ◽  
Author(s):  
Donley T. Studlar
Keyword(s):  
Regression Analysis ◽  
Population Density ◽  
Multiple Regression Analysis ◽  
Voter Turnout ◽  
The Political ◽  
Federal Level ◽  
Industrial Democracies ◽  
Different Types ◽  
Over Time ◽  
Cross National

Canada is unusual among advanced industrial democracies in having some provinces which regularly have greater voter turnouts for provincial than for federal elections. Provincial and federal turnouts by province in Canada are analyzed for the 1945-1998 period using multiple regression analysis, both for each set of elections and by comparing differences between the two. Federal turnout has declined over the years but provincial turnout appears to have increased slightly. Although the effects found here largely confirm previous findings about the relative effects of different types of variables found for the Canadian federal level only, several of the political explanations previously supported in cross-national research find less support. Instead, region, population density, months since the last federal or provincial election, and season of the year generally have greater and sometimes more consistent effects. This suggests the need for more studies of turnout in democracies at sub-central levels.

scholarly journals Efficacy of Different Coloured Sticky Traps Against Thrips of Chilli

2020 ◽  
Vol 8 (2) ◽  
pp. 187-190
Author(s):  
M.M. Hossain ◽  
K.M. Khalequzzaman ◽  
M.S. Alam ◽  
M.T.R. Mondal ◽  
M.M. Islam
Keyword(s):  
Field Experiment ◽  
Sticky Trap ◽  
Color Preference ◽  
Research Centre ◽  
Mass Trapping ◽  
Blue Color ◽  
Rabi Season ◽  
Beneficial Insects ◽  
Scirtothrips Dorsalis ◽  
Trap Color

The field experiment was conducted at Spices Research Centre, Shibganj, Bogura, Bangladesh during Rabi season of 2017-18 to study the color preference of Scirtothrips dorsalis in chilli. The treatments were T1= Blue trap @40 trap/ha; T2= Yellow trap @40 trap/ha; T3= White trap @40 trap/ha; T4= Green trap @40 trap/ha and T5= Pink trap @40 trap/ha.  Among the color traps used, at 35 days after installation (DAI) of trap blue color attracted highest (8.44 thrips/ sq. inch area of trap) number of S. dorsalis adults followed by white (5.43 thrips/ sq. inch area of trap), yellow (4.30 thrips/ sq. inch area of trap), green (3.52 thrips/ sq. inch area of trap) and pink (3.40 thrips/ sq. inch area of trap) color. Blue coloured sticky trap also attracted comparatively a smaller number of beneficial insects and can be used for relative estimate of S. dorsalis population and also for monitoring and mass trapping as a component of IPM program. Int. J. Appl. Sci. Biotechnol. Vol 8(2): 187-190

The dispersion of brood galleries of Xyleborus fornicatus Eichh. (Coleoptera, Scolytidae) in tea plants

1975 ◽  
Vol 65 (3) ◽  
pp. 501-506 ◽  
Author(s):  
P. Sivapalan
Keyword(s):  
Population Density ◽  
Tea Plant ◽  
Stratified Sampling ◽  
Ambrosia Beetle ◽  
Sampling System ◽  
Precise Estimation ◽  
Branch Lengths ◽  
Tea Plants ◽  
Wood Boring

AbstractThe dispersion and density of brood galleries of the wood-boring ambrosia beetle, Xyleborus fornicatus Eichh., in the tea plant depends on the type of branch (primary, secondary and tertiary) and not on the total available length of branch nor on branch thickness. Within the different branch types, branch lengths and the numbers of galleries contained in them are directly related. Significantly more galleries are formed in the primary branches than in the secondaries, which themselves carry more than the tertiaries. For precise estimation of Xyleborus population density, a stratified sampling system, representing the different branch classes, will be required.

scholarly journals THE DYNAMICS OF THE NUMBER OF ORIBATIC MITES ON THE PASTURES OF THE IVANOVO REGION AND THEIR INVASIBILITY OF THE MONISTIA CISTICERCOIDES

2019 ◽  
pp. 221-225 ◽  
Author(s):  
Zhdanova ◽  
Kryuchkova
Keyword(s):  
Population Density ◽  
Preventive Measures ◽  
Soil Surface ◽  
Weather Conditions ◽  
Oribatid Mites ◽  
Different Types ◽  
Dynamics Of Population ◽  
June July ◽  
High Degree ◽  
Natural Grassland

The distribution of mites on the soil surface of different types of pastures, the invasion of oribatids by monies larvae are dependent on climatic and weather conditions of the area, as well as the degree of infection with monies of the grazed livestock of ruminants. Seasonal dynamics of population density of oribatid ticks on natural and artificial pastures of two livestock farms of the Ivanovo region is studied. In soil and grass samples 5 species of shell mites were identified: Scheloribates laevigatus, Scheloribates latipes, Punctoribates punctum, Punctoribates sellnicki and Ceratozetes mediocris, cysticercoid-infested monies. Dominant species were representatives of the genus Scheloribates (65,8%), subdominant – genus Punctoribates (26,7%). The population density of oribatid mites on natural grassland pastures in may averaged 198±17,8 specimens per 1 m2 with cysticercoid monies equal to 3,39%. In June-July, the number of oribatids ranged from 249±23,5 – 298±31,2 specimens on 1 m2 at EI = 4,47–6,9% respectively. The greatest number of oribatids was found in August-September: 343±39,4 – 368±42,4 specimens per 1 m2 at EI = 8,7–9,2%. In October the population density of oribatid mites decreased to 201±28,4 individuals per 1 m2 at EI = 4,54%. Artificial (cultural) pastures, the number of oribatid mites does not exceed 108±9,3 individuals per 1 m2. The contamination of the oribatids with cysticercoids of moniesia on these pastures has not been found. The research results make it possible to assume a high degree of invasion of ruminants by moniesia when grazing them on natural meadow pastures and plan preventive measures.

EVALUATION OF TRAP COLOR AND HEIGHT PLACEMENT FOR MONITORING CIRCULIFER TENELLUS (BAKER) (HOMOPTERA: CICADELLIDAE)

1985 ◽  
Vol 117 (4) ◽  
pp. 505-511 ◽  
Author(s):  
D.E. Meyerdirk ◽  
G.N. Oldfield
Keyword(s):  
Ground Level ◽  
Sticky Trap ◽  
Optimum Location ◽  
Survey Tool ◽  
Beet Leafhopper ◽  
Circulifer Tenellus ◽  
Trap Color ◽  
Yellow Sticky Trap ◽  
Trap Catches ◽  
Opaque Plastic

AbstractThe beet leafhopper, Circulifer tenellus (Baker), was found to be significantly attracted to the color yellow. Yellow, opaque plastic cards coated with a sticky substance were shown to be an effective survey tool for monitoring adult beet leafhopper. Traps with different hues of yellow (wavelengths of 510 and 588 nm) showed no significant differences between trap catches. The commonest flight strata at a host site was at ground level, where significantly higher numbers of adults were trapped than at heights of 0.3, 0.6, 0.9, 1.5, 2.1, and 2.7 m above the ground. The ground level is the optimum location for a yellow sticky trap when monitoring C. tenellus.

scholarly journals Environmental Study of Zooplankton in the Middle Part of the Shatt Al-Arab River, Basrah, Iraq

2019 ◽  
Vol 32 ◽  
pp. 85-96
Author(s):  
Alaa A.A. Maytham ◽  
Naeem S. Hammadi ◽  
Jassim M. Abed
Keyword(s):  
Population Density ◽  
Water Temperature ◽  
Dominant Species ◽  
Middle Part ◽  
Environmental Study ◽  
Ph Values

An environmental study of zooplankton on the Shatt al-Arab River was carried out in two stations from July until November 2018. A total of 34 taxa of zooplankton were recorded in this study, belong to Cladocera, Copepoda and Rotifera. Some species have disappeared and others have emerged during the study period but varying numbers of dominant species found during the search such as Acarocalanus gibber, and recorded in the station 1 in July and station 2 for all months such as cyclopoid nauplii of Copepoda. Water temperature ranged between (19-35) °C station 1 and between (18- 32) °C at station 2, Salinity values fluctuated between (4.05 and 15.42 ‰), (6.47- 12.2 ‰) at stations 1, 2 respectively. pH values ranged was between (7.3 to 7.9) and (7.1 to 8.5) at stations 1 and 2 respectively. Copepoda density ranged between (0.12 to 88.23) ind. l-1 at station 1 and between (0.94 to 69.73) ind. l-1 at station 2. Density of Cladocera fluctuated between (0.06 and 1.45) ind. l-1. Maximum and minimum densities were at station 1. The population density of Rotifera ranged between (0.06 ind. l-1 to 20.44) ind. l-1 at second station.

scholarly journals Diversity of Land and Freshwater Snail (Mollusca: Gastropoda) of Laiwangi Wanggameti National Park, Sumba Island, Indonesia

2021 ◽  
Vol 6 (2) ◽  
pp. 162-173
Author(s):  
Nova Mujiono ◽  
Nur Rohmatin Isnaningsih
Keyword(s):  
Population Density ◽  
Species Composition ◽  
National Park ◽  
Dominant Species ◽  
New Records ◽  
Land Snail ◽  
Freshwater Snail ◽  
The Other ◽  
Snail Species ◽  
Number Of Species

A study on the malacofauna of Laiwangi Wanggameti National Park (LWNP) in Sumba Island has been conducted. This study aims were to reveal the diversity of malacofauna in Sumba and compare it with those in the Lesser Sunda Islands. Observations were made on 20 stations using plots (10 x 10 m) in Wanggameti and Laiwangi. Specimens were collected for two hours in each plot. Twenty families and 44 species have been identified. The overall number of species from Sumba increased from 126 to 143 species. The LWNP represents 31% diversity of malacofauna in Sumba Island. Seventeen species are considered as new records for the island. Five endemic land snail species are still observed inside the park. The diversity and population density tend to be higher in Laiwangi area with lower altitudes than in Wanggameti area with higher altitudes. Two dominant species are Asperitas bimaensis cochlostyloides and Tarebia granifera. Species composition in Sumba is more similar to Bali compared with the other six neighboring islands.

scholarly journals Development of floating-leaved vegetation in three lakes of varied trophy (Leczna-Wlodawa Lakeland)

2011 ◽  
Vol 11 (4) ◽  
pp. 163-169 ◽  
Author(s):  
Joanna Sender
Keyword(s):  
Dominant Species ◽  
Eutrophic Lake ◽  
Habitat Conditions ◽  
Sensitive Species ◽  
Eutrophic Lakes ◽  
Morphometric Features ◽  
Macrophyte Species ◽  
Different Types ◽  
Littoral Vegetation ◽  
Typical Component

Development of floating-leaved vegetation in three lakes of varied trophy (Leczna-Wlodawa Lakeland)Nymphaeids are a typical component of littoral vegetation in European lakes. In different types of water bodies they create large stands. This group of macrophyte species grows not deeper than 3 metres, but depending on clarity and depth. The aim of this study was to determine the percentage share and biomass of nymphaeids in investigated lakes with varying trophy and way of use. Furthermore, another aim of the study was a comparative analysis of morphometric features among dominant species of nymphaeids. The studied lakes are a group of eutrophic lakes, in various stages of its advancement from the low eutrophic Lake Płotycze Sobiborskie, through the eutrophic Lake Płotycze Urszulińskie to the highly eutrophic Lake Zienkowskie. In the studied lakes, nymphaeids formed a large part of the phytolittoral as well as macrophyte biomass, the smallest in the strongly eutrophic lake, the largest in the eutrophic lake. In the studied lakes appeared both Nymphaea candida species as well as intermediate forms. Neither the use of the lake nor habitat conditions affected the differentiation of the analysed characteristics of Nuphar lutea, while the most sensitive species was Nymphaea candida.

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