PPT-Distribution of a plant parasite on its host:

gall distribution on the flowering dogwood Cornus florida BIOL3060 Overview A Parasite Gall Midge Fly Resseliella clavula B Host Flowering dogwood Cornus floria. on its host . and. Reproductive and Somatic Effort . BIOL. 3060. Distribution of a plant parasite on its host: . gall distribution on the flowering dogwood, . Cornus. . florida. Flowering dogwood. , . “A parasite is an organism that spends a significant portion of its life in or on the living tissue of a host organism and which causes harm to the host without immediately killing it.” (Source: . i. ): . The parasite niche. CfE . Advanced Higher. Unit 2 Organisms and Evolution. SQA mandatory key information. Parasites tend to have a narrow niche as they have high host specificity and may lead to parasites which are degenerate. They are lacking in structures and organs found in other organisms. . gall distribution on the flowering dogwood, . Cornus. . florida. Purpose. To determine the distribution of midge galls on dogwood trees . and to investigate some environmental factors that might influence distribution.. Kara Cromwell & Bobbi . Peckarsky. Photo: Angus McIntosh. INCREASING PARASITISM. Baetis. . bicaudatus. Gasteromermis. healthy . Baetis. lifecycle. p. arasitized . Baetis. -. mermithid lifecycle. Transmission and virulence. CfE. Advanced Higher Biology. Unit . 2: . Organisms and Evolution. SQA . mandatory key information. Transmission is the spread of a parasite to a host. Virulence is the potential of a parasite to cause harm to a host. A higher rate of transmission is linked to higher virulence. Factors that increase transmission rates include the overcrowding of hosts at high density, or mechanisms that allow the parasite to spread even when infected hosts are incapacitated. Vectors and waterborne dispersal stages are examples of the latter. . What ORGANSISMS CAN BE PARASITES?. JUST ABOUT ANY ORGANISM. What ORGANSISMS CAN BE PARASITES?. Remember our list of . MICRO-ORGANISMS = MICROBES. BACTERIA. VIRUSES. PROTOZOA (. protists. ). some. FUNGI. CfE . Advanced Higher. Unit 2 Organisms and Evolution. SQA . mandatory key information. Parasites tend to have a narrow niche as they have high host specificity and may lead to parasites which are degenerate. They are lacking in structures and organs found in other organisms. . XOTE ON AX INTERESTING CASE OF T\VO GENERA- TIONS OF A PARASITE REARED FROM THE SAME INDIVIDUAL HOST. BY P. H. TIJIBERLAKE, U. S. DEFT. AGRICULTURE, BUREAU 01; ENTO- IIOLOGI-? CEREAI, Faculty of Science . Medical Analysis Dep.. Medical parasitology I. lec-2-. Grade -3- fall semester . By:. Dr.Hemdad. . Hawez. . Mawlood. 1. 2. Zoonosis. This term is used to describe . an animal . Parasitism. A: Ecological niche and competition. B: Parasite niches. C: Transmission and host behaviour. D: Parasitic life cycles. E: . Immune response to parasites. F: Challenges in treatment and control. Medical Parasitology. Prof. Dr. Ahmed Ali Mohammed. Medical Parasitology. Parasitology is a dynamic field because the relationships between the parasites and their hosts are constantly changing.. Parasites are often causing important diseases to humans and animals. Consequently, the host suffers from various . 5. th. . Ed. . P.C. Beaver & . R.C. . Jung.. Medical Parasitology. Assistant Professor. Dr. Ahmed A. Mohammed. Medical Parasitology. Introduction and definitions. . . Type of relationships. Using your notes about parasites, you are to . create and draw. . your . own while answering the following questions on a separate sheet of paper:. Come up with a name for your . parasite. Is your parasite an .