disease ecology syllabus 2013-11
... study that has developed rapidly over the past three decades and addresses some of the most significant challenges to human health and biological conservation. Students will obtain an appreciation for the incredible diversity of parasitic organisms, arguably the most abundant life forms on the plane ...
... study that has developed rapidly over the past three decades and addresses some of the most significant challenges to human health and biological conservation. Students will obtain an appreciation for the incredible diversity of parasitic organisms, arguably the most abundant life forms on the plane ...
Introduction
... mollusks which have successfully invaded land. They are one of the most diverse groups of animals, both in shape and habit. Among gastropods , land snails(subclass: Pulmonata) are one of the most numerous with almost 35000 described species of the world. The Phylum Mollusca is probably the third mos ...
... mollusks which have successfully invaded land. They are one of the most diverse groups of animals, both in shape and habit. Among gastropods , land snails(subclass: Pulmonata) are one of the most numerous with almost 35000 described species of the world. The Phylum Mollusca is probably the third mos ...
additional information
... genomes sequences of Ebola virus from Sierra Leone and Guinea indicates that the virus has probably only jumped into humans there once after having been introduced into West Africa from Central Africa some time in the last decade, most likely by bats. ...
... genomes sequences of Ebola virus from Sierra Leone and Guinea indicates that the virus has probably only jumped into humans there once after having been introduced into West Africa from Central Africa some time in the last decade, most likely by bats. ...
Host Altered Behavior
... Parasite Examples Assassin bugs (Triatoma) Malaria Tapeworms (Cestodes) Cholera (Shigella) transmission via dysentery Toilet seats, elevator buttons, shopping carts... Molecular mimicry “eclipsed antigens” resemble host antigens hence do not elicit formation of host antibodies ...
... Parasite Examples Assassin bugs (Triatoma) Malaria Tapeworms (Cestodes) Cholera (Shigella) transmission via dysentery Toilet seats, elevator buttons, shopping carts... Molecular mimicry “eclipsed antigens” resemble host antigens hence do not elicit formation of host antibodies ...
Interactions Within Communities
... • Microscopic, rapid reproduction rate • Blood protozoans • Often requires a vector ...
... • Microscopic, rapid reproduction rate • Blood protozoans • Often requires a vector ...
Life Sciences Issue 5: Parasites
... global climate change, with the possibility that some of these parasite diseases will spread to new regions. For example, the protistan disease Leishmaniasis is spread by a sandfly vector. Whilst increasing international travel is facilitating higher incidences of the disease, some outbreaks in the ...
... global climate change, with the possibility that some of these parasite diseases will spread to new regions. For example, the protistan disease Leishmaniasis is spread by a sandfly vector. Whilst increasing international travel is facilitating higher incidences of the disease, some outbreaks in the ...
ppt
... Medical Parasitology focuses on parasites which cause disease in humans. Parasites are also of great importance in veterinary medicine. Several diseases falling it this field only occur in the tropics, but many parasite disease are/were very common in temperate climates Overall there is a much ...
... Medical Parasitology focuses on parasites which cause disease in humans. Parasites are also of great importance in veterinary medicine. Several diseases falling it this field only occur in the tropics, but many parasite disease are/were very common in temperate climates Overall there is a much ...
Lecture 8
... 2. Types (parasitism, mutualism, commensalism) B. How common are parasites? C. Parasitism vs. predation 1. Higher reproductive rates 2. Don’t usually kill host 3. Specialized to few hosts 4. Can live inside or on host D. Parasite defenses 1. Immune 2. Biochemical 3. Mutualists E. Host counter-defens ...
... 2. Types (parasitism, mutualism, commensalism) B. How common are parasites? C. Parasitism vs. predation 1. Higher reproductive rates 2. Don’t usually kill host 3. Specialized to few hosts 4. Can live inside or on host D. Parasite defenses 1. Immune 2. Biochemical 3. Mutualists E. Host counter-defens ...
Lecture_3_Jan 08, 2015
... D. Density: Number of parasites per unit area, weight, or volume of tissue (e.g., number of parasite eggs per gram of feces). ...
... D. Density: Number of parasites per unit area, weight, or volume of tissue (e.g., number of parasite eggs per gram of feces). ...
Ecology: Lecture 1
... permanent and obligatory relationship where it is sometimes difficult to tell where one organism ends and the other begins ...
... permanent and obligatory relationship where it is sometimes difficult to tell where one organism ends and the other begins ...
Parasite Rex - Gustavus Adolphus College
... Zimmer immerses the reader into a broad spectrum of complex and intricate adaptations that allow parasites to survive and propagate whether they are unicellular or eukaryotic. Each species is fine tuned for a specific set of environments. If the reader didn’t know already, they soon discover that p ...
... Zimmer immerses the reader into a broad spectrum of complex and intricate adaptations that allow parasites to survive and propagate whether they are unicellular or eukaryotic. Each species is fine tuned for a specific set of environments. If the reader didn’t know already, they soon discover that p ...
Symbioses and Parasitism - Powerpoint for Oct. 23.
... experience same conditions as host - ticks, mites, fleas, aphids • endoparasites - live inside host's body cavity buffered from outside conditions - tapeworms, flukes • intracellular parasites - live inside individual cells of the host - viruses, bacteria, protozoa often called microparasites ...
... experience same conditions as host - ticks, mites, fleas, aphids • endoparasites - live inside host's body cavity buffered from outside conditions - tapeworms, flukes • intracellular parasites - live inside individual cells of the host - viruses, bacteria, protozoa often called microparasites ...
PARASITISM Definition. Parasitism is an association of two
... The parasites occur on or in the plants. They chiefly come from the groups Protozoa, nematoda and insecta. The common examples are Tylenchus tritici, a round bowl of wheat, and aphis brassicae, an aphid of mustard plants, lac insect, red cotton bug, stem borer, etc. (B) Zoophagous parasites This par ...
... The parasites occur on or in the plants. They chiefly come from the groups Protozoa, nematoda and insecta. The common examples are Tylenchus tritici, a round bowl of wheat, and aphis brassicae, an aphid of mustard plants, lac insect, red cotton bug, stem borer, etc. (B) Zoophagous parasites This par ...
Opuntia stricta
... experience same conditions as host - ticks, mites, fleas, aphids • endoparasites - live inside host's body cavity buffered from outside conditions - tapeworms, flukes • intracellular parasites - live inside individual cells of the host - viruses, bacteria, protozoa often called microparasites ...
... experience same conditions as host - ticks, mites, fleas, aphids • endoparasites - live inside host's body cavity buffered from outside conditions - tapeworms, flukes • intracellular parasites - live inside individual cells of the host - viruses, bacteria, protozoa often called microparasites ...
Special Relationships
... A parasitic relationship is one in which one member of the association benefits while the other is harmed. Parasitic symbioses take many forms, from endoparasites that live within the host's body, to ectoparasites that live on its surface. In addition, parasites may be necrotrophic, which is to say ...
... A parasitic relationship is one in which one member of the association benefits while the other is harmed. Parasitic symbioses take many forms, from endoparasites that live within the host's body, to ectoparasites that live on its surface. In addition, parasites may be necrotrophic, which is to say ...
Introduction to Parasitic Diseases Objectives
... 1. Infection :The entry and development and multiplication of an infectious agent in the body of humans or animals. The result may be : a. inapparent ( asymptomatic) infection, or ...
... 1. Infection :The entry and development and multiplication of an infectious agent in the body of humans or animals. The result may be : a. inapparent ( asymptomatic) infection, or ...
Objectives 5 – Parasitism
... named examples of both and be able to describe how they are transmitted. 4. Describe the differences between the definitive host and an intermediate host and be able to explain why many parasites require more than one host to complete their life cycle e.g Plasmodium spp and Schistosoma spp. 5. Defin ...
... named examples of both and be able to describe how they are transmitted. 4. Describe the differences between the definitive host and an intermediate host and be able to explain why many parasites require more than one host to complete their life cycle e.g Plasmodium spp and Schistosoma spp. 5. Defin ...
Helpful Background Information for Teachers
... There are many different parasites that people can get from animals but that does not mean that all animal parasites can infect humans. Most parasites are species specific. There are many more common parasites that people get that are not zoonotic and are therefore not discussed in this presenta ...
... There are many different parasites that people can get from animals but that does not mean that all animal parasites can infect humans. Most parasites are species specific. There are many more common parasites that people get that are not zoonotic and are therefore not discussed in this presenta ...
V. Relationships in the Ecosystem
... 2. Most parasites are entirely dependent on host 3. Populations of parasites are closely related to the host populations a. Crowded makes it easy to get from host to host b. Density dependent ...
... 2. Most parasites are entirely dependent on host 3. Populations of parasites are closely related to the host populations a. Crowded makes it easy to get from host to host b. Density dependent ...
The Structure of Parasites in Food Webs
... parasites with more hosts. Lastly, a prey and its predator are more likely to be hosts to the same parasite species. Previous models of food web structure were inspired by the idea that, at least for animals, there was a general hierarchy governing who ate whom, possibly based upon size, that influe ...
... parasites with more hosts. Lastly, a prey and its predator are more likely to be hosts to the same parasite species. Previous models of food web structure were inspired by the idea that, at least for animals, there was a general hierarchy governing who ate whom, possibly based upon size, that influe ...
A parasite is an organism that lives in or on the living tissue of a host
... Many endoparasites acquire hosts by passive mechanisms, such as the nematode Ascaris lumbricoides, an endoparasite of the human intestine. A. lumbricoides produces large numbers of eggs which are passed from the host's digestive tract into the external environment, relying on other humans to inadver ...
... Many endoparasites acquire hosts by passive mechanisms, such as the nematode Ascaris lumbricoides, an endoparasite of the human intestine. A. lumbricoides produces large numbers of eggs which are passed from the host's digestive tract into the external environment, relying on other humans to inadver ...
Parasitism
In biology/ecology, parasitism is a non-mutual symbiotic relationship between species, where one species, the parasite, benefits at the expense of the other, the host. Traditionally parasite (in biological usage) referred primarily to organisms visible to the naked eye, or macroparasites (such as helminths). Parasite now includes microparasites, which are typically smaller, such as protozoa, viruses, and bacteria. Examples of parasites include the plants mistletoe and cuscuta, and animals such as hookworms.Unlike predators, parasites typically do not kill their host, are generally much smaller than their host, and will often live in or on their host for an extended period. Both are special cases of consumer-resource interactions. Parasites show a high degree of specialization, and reproduce at a faster rate than their hosts. Classic examples of parasitism include interactions between vertebrate hosts and tapeworms, flukes, the Plasmodium species, and fleas. Parasitism differs from the parasitoid relationship in that parasitoids generally kill their hosts.Parasites reduce host biological fitness by general or specialized pathology, such as parasitic castration and impairment of secondary sex characteristics, to the modification of host behavior. Parasites increase their own fitness by exploiting hosts for resources necessary for their survival, e.g. food, water, heat, habitat, and transmission. Although parasitism applies unambiguously to many cases, it is part of a continuum of types of interactions between species, rather than an exclusive category. In many cases, it is difficult to demonstrate harm to the host. In others, there may be no apparent specialization on the part of the parasite, or the interaction between the organisms may remain short-lived.