B-Seasonal abundance of Ceroplastes Cirripediformis stages infesting guava trees at Qaliobiya governorate during the two studied years (from mid January 2005 -1st January2007) are shown in tables (XIII &XIV) and figures (81-84): Seasonal fluctuation of the pre-adult: Data in the previous tables and figure (81) illustrated the dynamic curve of Cer. cirripediformis nymphs, it had only two peaks. Whereas the first peak occurred at mid February, with an average of (118-150 pre-adult / leaf) and the second peak was (114-358 pre-adult / leaf) at mid November during the two studied years respectively. Also the results clearly showed that: there was a long period of depression started from mid March till 1st October. Seasonal fluctuation of adult females: Data in the same tables and figure (82) indicated that, the highly occurrence were during 1st October, that reached 20 adult/leaf; disappeared during interrupted periods. Seasonal fluctuation of the gravid female: Examination of data presented in the tables and figure (83) revealed that the gravid females have two annual peaks through the two years of study. The highest peak elicited during October & November reaches 15 gravid females / leaf during the second year. Seasonal fluctuation of Cer. cirripediformis total population: Data summarized in the two previous tables and graphically illustrated in Figure (84) Published the presence of two distinct peaks annually. The first peak recorded at mid February with (121,157 insect / leaf) and the second peak recorded at mid November with (115,137 insect / leaf) during the two studied years respectively. On the other hand, there was a long depression period during the two studied years which started from mid March until ... ... middle of paper ... ...hs 114 2006 Season 1st Generation From mid January to 1st July 2006 5.5 months 150 2nd Generation From 1st July to mid January 6.5 months 358 Table (XVI): simple correlation and partial regression of six abiotic and biotic factors with their significant level and percentage of explained variance on the population density of Ceroplastes cirripediformis population at Qaliobiya governorate during the period of investigation. E.V% F.value partial regression simple correlation source of variation year t p b R 57.90% 3.889** -2.888 0.01 -3.98 -0.576* MAX. Temp 2005-2006 0.533 0.601 0.416 -0.263 Min . Temp 0.293 0.773 0.352 0.124 daily meanR.H% -0.95 0.355 -2.473 -0.125 Rainfall -1.029 0.318 -3.932 -0.417* wind speed -1.574 0.134 4.256 0.584* parasite
..., Department of Zoology, Miami University, Oxford, OH, Available from Journal of Insect Physiology. (46 (2000) 655–661)Retrieved from http://www.units.muohio.edu/cryolab/publications/documents/IrwinLee00.pdf
The life cycle of a monarch revolves around the Butterfly weed plant. First the monarch lays its egg on the leaf of the plant. Once the Caterpillar is born it eats the leaf for nutrition. The Monarch caterpillar is striped black and yellow. As it grows and becomes ready to become a chrysalis by forming a cocoon it uses the plant again. The caterpillar forms its cocoon on the Butterfly Weed. By the time the caterpillar is ready to become a chrysalis it has grown to be about 45 millimeters in length. The chrysalis is pale green and spotted with gold. It becomes more transparent as the butterfly gets ready to break free. The adult Monarch has a wingspan of about 4 inches. The m...
month period. This type of weather has not been seen here in well over ten years.
ImageText BoxImageOne of the biggest threats to the environment of Ontario is the Gypsy Moth (Lymantria dispar dispar). The species itself is native to Europe and Asia. How this affects us is by weakening trees across Ontario and North America. The first time the gypsy moth was found in Ontario was 1969. The gypsy moth can be found in southern Canada (Ontario), New Brunswick, Nova Scotia and British Columbia. It is known to weaken trees and the caterpillar form live in trees and during most outbreaks its caterpillar feces would fall from the trees to the ground or even on top of humans. The average Gypsy Caterpillar can grow 5-6 centimeters long. With five pairs of blue spots and six pairs of bright red dots on their back. The female moth are white and can fly on the other hand, the male moth are brown and can also fly. The female have a 5cm wing span but male have a 2.5cm wing span. The gypsy moth usually lives in open forests and other forests and take up at least 20% of the space. The Gypsy moth are about 4cm long, tan coloured and can be located on tree trunks, furniture, and buildings. (OFAH Invading Species Awareness Program, 2012)
The Northern White-tailed deer have a polygynous mating system (fcps.edu, nd). Most white tails mate in their second year but it is possible for females to become sexually active after only seven months. The male species are polygamous but may develop an attachment to a doe for several days or weeks. The female species come into heat in November for only twenty-four hours. If the female is not mated she will have a second heat...
Fruiting heads often remain on trees over winter. Fair seed crops occur every year and bumper crops about every 3 years. The staminate and pistillate of Sweetgum is monoeciouse. The small, greenish flowers bloom from march to early May, depending on latitude and weather conditions. Both the staminate and pistillate flowers occur in heads. The staminate inflorescences are racemes; the solitary pistillate flowers are globose heads that that form the multiple head, 2.5 to 3.8cm in diameter, of small, two-celled capsule. The lustrous green color of the fruiting heads fades to yellow as maturity is reached in September to November. The beaklike capsules open at this time, and the small winged seeds, one or two per capsule, are then readily disseminated by wind. However, the seed balls can be safely collected for seed examination several weeks before ball discoloration occurs without harming the seed. Empty flowers are quit sensitive to cold and often damaged by frost.
...l, Ted E., and Bruce W. Wood. "Movement of adult pecan weevils Curculio caryae within pecan orchards." Agricultural & Forest Entomology 10, no. 4 (November 2008): 363-373. Academic Search Complete, EBSCOhost (accessed April 18, 2012).
fauna will start to creep out of hiding. The few summer months are used by many
Fox, R. 2001. Invertebrate Anatomy OnLine: Artemia Franciscana. Lander University. http://webs.lander.edu/rsfox/invertebrates/artemia.html, retrieved February 13, 2011.
Outline the physical similarities between the (Blaptica dubia) cockroach and the cricket. Explain previous studies on physical stress in the cricket and in different species of cockroaches. Briefly discuss how the metabolic rate between the two species has been found to be very similar.
Due to the moderating effect, this ecozone has long, mild summers (18 to 22°C) and cool, short winters (-3 to -12°C), with around 720 to 1000mm of precipitation, and 180 to 260 growing days annually. The Westerlies can also alter the weather quickly in this ecozone.
The main reason for studying forensic entomology is to establish the time since death. Recognizing each species and their life stages as well as having knowledge about how long an insect is in a particular life stage is the basis for establishing a PMI. The use of forensic entomology is a growing area of research, which will become more prevalent as more research on the subject is completed. This is important in criminal cases in providing a time range for when the crime occurred so that it is possible to narrow the possibility of each suspect or to acquit the defendant.
Market Line. India Country Profile: Pest Analysis. Data Monitor. 2012. The.
Forensic entomologists measure the PMI derived from the age of the insect present, which may or may not estimate the postmortem interval in full. A portion of the PMI can be corroborated by information provided by the forensic entomologist, while the actual postmortem interval est...
The body seems to be slower. Motivation to do anything takes a hit. In fact, in a survey taken in Maryland, over 90% of the people surveyed reported that they noticed a change in mood, behavior, and energy levels with the change of seasons.... ... middle of paper ...