Food web structure of three guilds of natural enemies: predators
... The aphids (Aphidoidea) are a superfamily of phloem-sucking insects (Hemiptera: Sternorrhyncha). They are extensively attacked by predators, parasitoids and pathogens. We reasoned that natural enemies that required a prolonged intimate association with the host would evolve over time to be highly sp ...
... The aphids (Aphidoidea) are a superfamily of phloem-sucking insects (Hemiptera: Sternorrhyncha). They are extensively attacked by predators, parasitoids and pathogens. We reasoned that natural enemies that required a prolonged intimate association with the host would evolve over time to be highly sp ...
2004 AP Art History Scoring Guidelines - AP Central
... either parthenogenesis or cloning and compare the genomes of the offspring with those of the parents. (3 points maximum) CLONING OR PARTHENOGENESIS 1 point: Definition - Parthenogenesis: development of an unfertilized egg into an adult; often the adult is haploid OR - Cloning: using a somatic cell o ...
... either parthenogenesis or cloning and compare the genomes of the offspring with those of the parents. (3 points maximum) CLONING OR PARTHENOGENESIS 1 point: Definition - Parthenogenesis: development of an unfertilized egg into an adult; often the adult is haploid OR - Cloning: using a somatic cell o ...
Non-random biodiversity loss underlies predictable increases in
... hosts and infected vectors can reduce infection risk with increasing biodiversity when host behaviour or vector search efficiency is altered [2,33]. Disease prevalence can also be affected by heterogeneity in the competence of host reservoirs for parasite transmission [32,34]. Taken together, this b ...
... hosts and infected vectors can reduce infection risk with increasing biodiversity when host behaviour or vector search efficiency is altered [2,33]. Disease prevalence can also be affected by heterogeneity in the competence of host reservoirs for parasite transmission [32,34]. Taken together, this b ...
270-275 - University of Oklahoma
... same direct detrimental effect on free-living parasite stages as on every other organism. Thus, unless the parasite has the same ability to cope with the extreme environment as ...
... same direct detrimental effect on free-living parasite stages as on every other organism. Thus, unless the parasite has the same ability to cope with the extreme environment as ...
ADAPTATIONS - Jefferson City Schools
... adaptation; that is, whether or not these qualities actually help the organism survive. Lay down a sheet of newspaper. Cut out small squares (1x1 inch) of red paper, white paper, and newspaper and sprinkle them on sheet to be the “insects”. Ask a few friends (hungry mockingbirds) to each run to the ...
... adaptation; that is, whether or not these qualities actually help the organism survive. Lay down a sheet of newspaper. Cut out small squares (1x1 inch) of red paper, white paper, and newspaper and sprinkle them on sheet to be the “insects”. Ask a few friends (hungry mockingbirds) to each run to the ...
Ecology
... Secondary compounds are chemicals that reduce herbivory. Some are toxic to herbivores, others attract predators or parasitoids that will attack the herbivores. ...
... Secondary compounds are chemicals that reduce herbivory. Some are toxic to herbivores, others attract predators or parasitoids that will attack the herbivores. ...
Preston and Johnson 2010
... With some notable exceptions (e.g., tapeworms), parasites also tend to be very small. It may be easy to assume then, that since parasites are generally inconspicuous, they play less important roles in community ecology than free-living organisms. Yet advances in the field of disease ecology have rev ...
... With some notable exceptions (e.g., tapeworms), parasites also tend to be very small. It may be easy to assume then, that since parasites are generally inconspicuous, they play less important roles in community ecology than free-living organisms. Yet advances in the field of disease ecology have rev ...
Replicated host-race formation in bogus yucca moths
... insects is growing quickly (Berlocher and Feder, 2002), few studies have addressed the frequency of replication of divergence within lineages, and whether such replication occurs through parallel or different trait divergence. Thus, the generality of host-race formation in closely related lineages w ...
... insects is growing quickly (Berlocher and Feder, 2002), few studies have addressed the frequency of replication of divergence within lineages, and whether such replication occurs through parallel or different trait divergence. Thus, the generality of host-race formation in closely related lineages w ...
WELCOME TO BIOLOGY 2002
... to resources by other individuals. The space preempted by these barnacles is unavailable to competitors. ...
... to resources by other individuals. The space preempted by these barnacles is unavailable to competitors. ...
Here - Tylianakis Lab Group
... Research Diets and Environmental Enrichment Products, Frenchtown, New Jersey, USA). Parasitoids were identified by their morphology and using molecular barcoding when species-level identification was not possible, for example, with males where taxonomic keys ...
... Research Diets and Environmental Enrichment Products, Frenchtown, New Jersey, USA). Parasitoids were identified by their morphology and using molecular barcoding when species-level identification was not possible, for example, with males where taxonomic keys ...
The use of radiation is improving the biological control of insect pests.
... Often the natural prey or host species are themselves difficult or expensive to rear in large numbers and the use of more readily available substitutes would be an advantage – the so called factitious species. However, these types of species are not always as acceptable as the natural prey or host; ...
... Often the natural prey or host species are themselves difficult or expensive to rear in large numbers and the use of more readily available substitutes would be an advantage – the so called factitious species. However, these types of species are not always as acceptable as the natural prey or host; ...
Viability of subitaneous copepod eggs following fish
... within ovisacs until hatching. As far as w e know, there has been no documentation on the viability of ingested subitaneous eggs of ovigerous (egg-bearing)copepods. Eurytemora herdmani Thompson & Scott is a planktonic calanoid copepod that produces subitaneous eggs and retains them within a single e ...
... within ovisacs until hatching. As far as w e know, there has been no documentation on the viability of ingested subitaneous eggs of ovigerous (egg-bearing)copepods. Eurytemora herdmani Thompson & Scott is a planktonic calanoid copepod that produces subitaneous eggs and retains them within a single e ...
PII: S0020-7519(01) - University of Otago
... The objectives of this study were to (1) test for interspecific associations among species of larval helminths in several populations of freshwater and brackish water fish belonging to different species, and (2) determine whether these associations are influenced by fish size and by whether the para ...
... The objectives of this study were to (1) test for interspecific associations among species of larval helminths in several populations of freshwater and brackish water fish belonging to different species, and (2) determine whether these associations are influenced by fish size and by whether the para ...
S51.2: Brood parasites: The advantages of being a different species
... and two times in Cuculidae (Aragon et al. in press; but see Hughes 1996). Moreover, it is likely that this reproductive strategy has evolved at least once in Honeyguides (Indicatoridae) and in Anatidae, because all the parasitic species are from the same genus and all other genera from the same fam ...
... and two times in Cuculidae (Aragon et al. in press; but see Hughes 1996). Moreover, it is likely that this reproductive strategy has evolved at least once in Honeyguides (Indicatoridae) and in Anatidae, because all the parasitic species are from the same genus and all other genera from the same fam ...
Extreme diversity of tropical parasitoid wasps exposed by iterative
... ore than half of all species are likely to be those directly involved in plant/insect/parasitoid dynamics (1). Since insect parasitoids kill their hosts, they have profound effects on the population dynamics of their hosts (2). In this study, their hosts are caterpillars (larval Lepidoptera), which ...
... ore than half of all species are likely to be those directly involved in plant/insect/parasitoid dynamics (1). Since insect parasitoids kill their hosts, they have profound effects on the population dynamics of their hosts (2). In this study, their hosts are caterpillars (larval Lepidoptera), which ...
Ecology seeks to explain the distribution and abundance of
... • Competition may at times control ranges, as in the example of the doves on islands off New Guinea, although this is difficult to say definitively. ...
... • Competition may at times control ranges, as in the example of the doves on islands off New Guinea, although this is difficult to say definitively. ...
Roles of parasites in animal invasions
... predators and parasites. For example, parasite-mediated apparent competition might occur when (i) the parasite differentially affects one competitor, reducing its population growth rate and abundance and hence competitive impact on another species or (ii) one host species acts as a reservoir for the ...
... predators and parasites. For example, parasite-mediated apparent competition might occur when (i) the parasite differentially affects one competitor, reducing its population growth rate and abundance and hence competitive impact on another species or (ii) one host species acts as a reservoir for the ...
Experimental transmission of Enteromyxum leei to freshwater fish
... hosts. The objective of the present study was to determine whether freshwater fish species are also receptive hosts to this parasite. Seventeen species of freshwater fish were experimentally fed E. leeiinfected gut tissue from donor gilthead sea bream Sparus aurata obtained from a commercial sea bre ...
... hosts. The objective of the present study was to determine whether freshwater fish species are also receptive hosts to this parasite. Seventeen species of freshwater fish were experimentally fed E. leeiinfected gut tissue from donor gilthead sea bream Sparus aurata obtained from a commercial sea bre ...
Parasitism - Sinauer Associates
... way: their bodies consist of tissues that surround an open tube called the alimentary canal. The alimentary canal runs through the middle of the body, from the mouth to the anus. Parasites that live inside their hosts, called endoparasites, include species that inhabit the alimentary canal as well a ...
... way: their bodies consist of tissues that surround an open tube called the alimentary canal. The alimentary canal runs through the middle of the body, from the mouth to the anus. Parasites that live inside their hosts, called endoparasites, include species that inhabit the alimentary canal as well a ...
Spatiotemporal variations in aphidparasitoid relative abundance
... were monitored in three remote agricultural regions in France between 2010 and 2012. Five parasitoid species (Hymenoptera: Braconidae: Aphidiinae) and three aphid species (Hemiptera: Aphididae) were identified in each of those three regions. Fields sampled in one region in a single year exhibited si ...
... were monitored in three remote agricultural regions in France between 2010 and 2012. Five parasitoid species (Hymenoptera: Braconidae: Aphidiinae) and three aphid species (Hemiptera: Aphididae) were identified in each of those three regions. Fields sampled in one region in a single year exhibited si ...
The Great Spruce Bark Beetle (Dendroctonus micans) is important
... (Lacertidae), several flies (Diptera), wasps and ants (Hymenoptera), true bugs (Heteroptera), snakeflies (Raphidioptera) or dragonflies (Odonata). Traditionally, parasites and parasitoids are referred primarily to organisms visible to the naked eye – so called macroparasites (not only insects, but e ...
... (Lacertidae), several flies (Diptera), wasps and ants (Hymenoptera), true bugs (Heteroptera), snakeflies (Raphidioptera) or dragonflies (Odonata). Traditionally, parasites and parasitoids are referred primarily to organisms visible to the naked eye – so called macroparasites (not only insects, but e ...
Geographic and taxonomic distribution of a positive interaction: ant
... the branches, as well as the species of ants present. On each sampling occasion, we divided the number of ants on a branch by the number of ®gs it contained to generate a mean ant density per ®g. We used these data to calculate the mean number of ants per ®g for the entire sampling period. We collec ...
... the branches, as well as the species of ants present. On each sampling occasion, we divided the number of ants on a branch by the number of ®gs it contained to generate a mean ant density per ®g. We used these data to calculate the mean number of ants per ®g for the entire sampling period. We collec ...
Chapter 29 - Nematodes: Filaroidea
... • Diethylcarbamazine (under an investigational New Drug Protocol from the CDC Drug Service) and ivermectin are effective for the treatment of filariasis. ...
... • Diethylcarbamazine (under an investigational New Drug Protocol from the CDC Drug Service) and ivermectin are effective for the treatment of filariasis. ...
internal parasites of lizards from taiwan
... parts of Australia, India, and Southeast Asia (Riley and Self 1980). The eggs of K. pattoni can directly infect amphibians and lizards (first intermediate hosts), as well as some snakes (second intermediate hosts), and as a result, nymphs have been recorded in a wide variety of amphibians, lizards, ...
... parts of Australia, India, and Southeast Asia (Riley and Self 1980). The eggs of K. pattoni can directly infect amphibians and lizards (first intermediate hosts), as well as some snakes (second intermediate hosts), and as a result, nymphs have been recorded in a wide variety of amphibians, lizards, ...
Parasitoid
A parasitoid is an organism that spends a significant portion of its life history attached to or within a single host organism in a relationship that is in essence parasitic; unlike a true parasite, however, it ultimately sterilises or kills, and sometimes consumes, the host. Thus parasitoids are similar to typical parasites except in the more dire prognosis for the host.