Classical Population Biology
... Parasitism – symbiosis where one benefits/one harmed, but usually not killed ...
... Parasitism – symbiosis where one benefits/one harmed, but usually not killed ...
Teacher Answer Key - Ecology Unit Plan
... Competition (sharks are after the same fish as the humans and will often steal the humans’ catch) ...
... Competition (sharks are after the same fish as the humans and will often steal the humans’ catch) ...
Fast-killing parasites can be favoured in spatially structured
... fast: 28.69 + 0.61 min, or slow: 36.54 + 0.32 min). Six replicate metapopulations were founded with single (and unique) viral clones in each subpopulation (high relatedness (genetically identical) treatments), while six metapopulations had 12 individual subpopulations founded with one fast-killing c ...
... fast: 28.69 + 0.61 min, or slow: 36.54 + 0.32 min). Six replicate metapopulations were founded with single (and unique) viral clones in each subpopulation (high relatedness (genetically identical) treatments), while six metapopulations had 12 individual subpopulations founded with one fast-killing c ...
Introduction to Parasitology
... Absence of certain vectors - intermediate hosts such as the tsetse fly, certain snails, etc. ...
... Absence of certain vectors - intermediate hosts such as the tsetse fly, certain snails, etc. ...
Slide 1
... A relationship that benefits one organism and neither hurts nor helps the other Keywords: one benefits, other unaffected Example: Whales and Barnacles ...
... A relationship that benefits one organism and neither hurts nor helps the other Keywords: one benefits, other unaffected Example: Whales and Barnacles ...
Predation, Mutualism, Commensalism, or Parasitism
... organism derives its food from the body of another living organism(called its host). The organism which obtains food is called parasite and the organism from whose body food is obtained is called host. Example of parasite –roundworm in animals, ...
... organism derives its food from the body of another living organism(called its host). The organism which obtains food is called parasite and the organism from whose body food is obtained is called host. Example of parasite –roundworm in animals, ...
Red Worm - Vermont Fish and Wildlife
... Eggs are shed in the feces of infected birds and are then ...
... Eggs are shed in the feces of infected birds and are then ...
Parasites and social insects
... but essentially a similar absence of infectious diseases of eggs is also true for nonsocial insects. Possibly, it is simply more difficult to penetrate the egg and its chorion. Another reason may be the fact that infections cannot be easily transmitted by the eggs since they are immobile and will no ...
... but essentially a similar absence of infectious diseases of eggs is also true for nonsocial insects. Possibly, it is simply more difficult to penetrate the egg and its chorion. Another reason may be the fact that infections cannot be easily transmitted by the eggs since they are immobile and will no ...
GOOD BUDDIES - cypresswoodsbiology
... Community Interactions • Community interactions, such as competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem. ...
... Community Interactions • Community interactions, such as competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem. ...
Commensalism
... Moss growing on trees benefits by being raised above forest floor competition, while the tree doesn't get much out of the deal either way. A desert holly shrub provides shade for young creosote bush. A cactus wren builds its nest in a cholla cactus to protect its young from predators such as raven. ...
... Moss growing on trees benefits by being raised above forest floor competition, while the tree doesn't get much out of the deal either way. A desert holly shrub provides shade for young creosote bush. A cactus wren builds its nest in a cholla cactus to protect its young from predators such as raven. ...
Interactions between Organisms
... Bracken defends itself in the following ways. It produces cyanide like clover and other harmful chemicals which make it distasteful; these include phenolics, lignins, tannins, carcinogens and a sheep blindness factor. It also produces a chemical which mimics insect moulting hormones, an ecdysone. Fu ...
... Bracken defends itself in the following ways. It produces cyanide like clover and other harmful chemicals which make it distasteful; these include phenolics, lignins, tannins, carcinogens and a sheep blindness factor. It also produces a chemical which mimics insect moulting hormones, an ecdysone. Fu ...
Ecosystem Interactions, energy and dynamics
... What things can keep populations balanced between predators and their prey? What happens when the deer population becomes large? What happens whens if the fox overeat the hares in one area? Do you think they can ever eat all of them? What type of defenses to prey evolve? ...
... What things can keep populations balanced between predators and their prey? What happens when the deer population becomes large? What happens whens if the fox overeat the hares in one area? Do you think they can ever eat all of them? What type of defenses to prey evolve? ...
Wildlife Diseases
... • Less persistent than organochlorines • Associated with secondary poisoning, e.g., hawks die after eating poisoned grasshoppers (the target species) ...
... • Less persistent than organochlorines • Associated with secondary poisoning, e.g., hawks die after eating poisoned grasshoppers (the target species) ...
Parasitoids (insects whose larvae are the actual “predator”)
... Parasitoids (insects whose larvae are the actual “predator”) Parasitoids differ from parasites in that they almost always kill their hosts. The adult parasitoid only needs the host as food for its offspring Parasites are obligately dependent on their hosts – so better adapted parasites get what they ...
... Parasitoids (insects whose larvae are the actual “predator”) Parasitoids differ from parasites in that they almost always kill their hosts. The adult parasitoid only needs the host as food for its offspring Parasites are obligately dependent on their hosts – so better adapted parasites get what they ...
Nematoda - Moore Public Schools
... Eggs pass in feces, but if soil conditions are warm and moist the eggs hatch and the juveniles live in the soil, eating bacteria. When juvenile worms come into contact with bare skin, they burrow into the blood vessels and then they follow the same path as Ascaris to get to the intestine. Penetratio ...
... Eggs pass in feces, but if soil conditions are warm and moist the eggs hatch and the juveniles live in the soil, eating bacteria. When juvenile worms come into contact with bare skin, they burrow into the blood vessels and then they follow the same path as Ascaris to get to the intestine. Penetratio ...
Lecture 32
... A form of the parasite passes out of the infected sheep/cow in its feces Cionella, a snail, picks up the parasite while feeding on sheep/cow poop The parasite metamorphoses ending up in the snail’s “lungs” and is released along with the mucous in the snails’ slime trails Ants pick up the par ...
... A form of the parasite passes out of the infected sheep/cow in its feces Cionella, a snail, picks up the parasite while feeding on sheep/cow poop The parasite metamorphoses ending up in the snail’s “lungs” and is released along with the mucous in the snails’ slime trails Ants pick up the par ...
Trophic strategies, animal diversity and body size
... castration effect is intensity independent (simple models suggest that parasites that reduce reproduction should be selected to fully castrate the host [9]; examples of intensity-dependent partial castrators are few and these are treated more adequately as typical parasites). Because parasitoids htt ...
... castration effect is intensity independent (simple models suggest that parasites that reduce reproduction should be selected to fully castrate the host [9]; examples of intensity-dependent partial castrators are few and these are treated more adequately as typical parasites). Because parasitoids htt ...
Parasitism is ubiquitous and most organisms are host to one or more
... are assumed to be associated with the fungus-growing ants (Tribe Attini).12 The attine ants have an obligate mutualism with their specific fungal cultivar strain, feeding, protecting, and dispersing it in exchange for nutrients.3 However, the garden is a large food store, susceptible to consumption ...
... are assumed to be associated with the fungus-growing ants (Tribe Attini).12 The attine ants have an obligate mutualism with their specific fungal cultivar strain, feeding, protecting, and dispersing it in exchange for nutrients.3 However, the garden is a large food store, susceptible to consumption ...
Describe
... prey – organism that is killed and eaten. (din din) prey adaptations – stay in groups, camouflage, warning color, defensive chemicals, shells ex. Deer, turtles pg 492-493 ...
... prey – organism that is killed and eaten. (din din) prey adaptations – stay in groups, camouflage, warning color, defensive chemicals, shells ex. Deer, turtles pg 492-493 ...
Which type of symbiosis is it?
... a GALL which is a nest for the wasp’s babies. • When the larva hatch, they eat their way out of the gall. • Does not help or hurt the oak tree ...
... a GALL which is a nest for the wasp’s babies. • When the larva hatch, they eat their way out of the gall. • Does not help or hurt the oak tree ...
Parasite establishment in host communities - People
... of host–parasite interactions has to date dealt mostly with one-host, one-parasite interactions (Anderson & May 1991). This is a sensible starting point, but single parasite species often cross-infect multiple host species (Woolhouse et al. 2001; Power & Flecker 2003). For instance, Williams & Jones ...
... of host–parasite interactions has to date dealt mostly with one-host, one-parasite interactions (Anderson & May 1991). This is a sensible starting point, but single parasite species often cross-infect multiple host species (Woolhouse et al. 2001; Power & Flecker 2003). For instance, Williams & Jones ...
Parasites, ecosystems and sustainability: an ecological and complex
... Host–parasite relationships can be conceptualised either narrowly, where the parasite is metabolically dependent on the host, or more broadly, as suggested by an ecological–evolutionary and complex systems perspective. In this view Host–parasite relationships are part of a larger set of ecological a ...
... Host–parasite relationships can be conceptualised either narrowly, where the parasite is metabolically dependent on the host, or more broadly, as suggested by an ecological–evolutionary and complex systems perspective. In this view Host–parasite relationships are part of a larger set of ecological a ...
Criscione
... infect the intestines of salmonids and pass eggs into the freshwater via host feces. A miracidium hatches and penetrates a freshwater snail where a period of asexual reproduction occurs prior to cercarial development. Cercariae leave the snail and penetrate aquatic arthropods (e.g., amphipods, caddi ...
... infect the intestines of salmonids and pass eggs into the freshwater via host feces. A miracidium hatches and penetrates a freshwater snail where a period of asexual reproduction occurs prior to cercarial development. Cercariae leave the snail and penetrate aquatic arthropods (e.g., amphipods, caddi ...
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.