MF2222 Biological Control of Insect Pests on
... modify production practices to accommodate their needs. Complicating matters is the fact that many beneficial insects feed not only on pest insects, but also on each other, a phenomenon referred to as intraguild predation. In a healthy agroecosystem with a high degree of plant and insect diversity, ...
... modify production practices to accommodate their needs. Complicating matters is the fact that many beneficial insects feed not only on pest insects, but also on each other, a phenomenon referred to as intraguild predation. In a healthy agroecosystem with a high degree of plant and insect diversity, ...
HOST-PARASITE RELATIONSHIPS OF THE BROWN
... low frequency of parasitism were evident. Red-winged Blackbird.-Friedmann (1963) stated that the Red-winged Blackbird is a common victim in some areas but is almost unmolested by the cowbird in other localities. In Ellis County nests of Red-wings were moderately parasitized (21.9%). Fledging success ...
... low frequency of parasitism were evident. Red-winged Blackbird.-Friedmann (1963) stated that the Red-winged Blackbird is a common victim in some areas but is almost unmolested by the cowbird in other localities. In Ellis County nests of Red-wings were moderately parasitized (21.9%). Fledging success ...
Studying insect diversity in the tropics
... (Janzen 1973; Price 1991). For example, the resource fragmentation hypothesis states that higher diversity leads to lower population densities for individual species and hence less host speci¢city, as the most specialized species are unable to maintain themselves on the most fragmented resources. Al ...
... (Janzen 1973; Price 1991). For example, the resource fragmentation hypothesis states that higher diversity leads to lower population densities for individual species and hence less host speci¢city, as the most specialized species are unable to maintain themselves on the most fragmented resources. Al ...
Interspecific Adoption of Orphaned Nests by Polistes Paper Wasps
... Perhaps the earliest report of aggressive intraspecific nest takeover was the graphic description by Yoshikawa (1955). Later it was learned that intraspecific usurpation can occur commonly in some populations (Klahn 1988; Makino and Sayama 1991), and still later it was suggested that conspecific nes ...
... Perhaps the earliest report of aggressive intraspecific nest takeover was the graphic description by Yoshikawa (1955). Later it was learned that intraspecific usurpation can occur commonly in some populations (Klahn 1988; Makino and Sayama 1991), and still later it was suggested that conspecific nes ...
GarcÃa-Roa, R., M. Iglesias-Carrasco, I. Garin-Barrio
... Reports of communal egg-laying in Iberolacerta spp. are scarce, with only Arribas & Galán (2005) reporting on 29 Iberolacerta aranica eggs, confirming communal egglaying for the genus. Clutch sizes of 4.2 ± 0.7 eggs (mean = 3; range: 2–12; n = 14 clutches; Arribas 2004, Arribas & Galán 2005) have be ...
... Reports of communal egg-laying in Iberolacerta spp. are scarce, with only Arribas & Galán (2005) reporting on 29 Iberolacerta aranica eggs, confirming communal egglaying for the genus. Clutch sizes of 4.2 ± 0.7 eggs (mean = 3; range: 2–12; n = 14 clutches; Arribas 2004, Arribas & Galán 2005) have be ...
I made observations on liptenine biology from July 1986 to March
... Males perched in late morning (llOO to 1300 h) on the edge of small sunlit clearings, where half a dozen or more were found together, and not far from the ant trees utilized by their larvae. Males rested by hanging from dead branches or from the bamboo stems from which they fed (Fig. 5). Females fre ...
... Males perched in late morning (llOO to 1300 h) on the edge of small sunlit clearings, where half a dozen or more were found together, and not far from the ant trees utilized by their larvae. Males rested by hanging from dead branches or from the bamboo stems from which they fed (Fig. 5). Females fre ...
Phylum Platyhelminthes
... Most parasitic platyhelminths belong to one of three classes: Monogenea, Cestoidea or Digenea. In older texts, Digenea and Monogenea are often united under the Trematoda. However, Monogenea are more closely related to Cestoidea because both have a caudal hookbearing structure, the cercomer, at some ...
... Most parasitic platyhelminths belong to one of three classes: Monogenea, Cestoidea or Digenea. In older texts, Digenea and Monogenea are often united under the Trematoda. However, Monogenea are more closely related to Cestoidea because both have a caudal hookbearing structure, the cercomer, at some ...
Insect Diversity
... • The third type of development is called holometabolous metamorphosis. Immatures are called larvae (caterpillars of moths and beetles). Larvae have a species specific number of molts and the final molt results in formation of a pupae. A protective case called a cocoon, a chrysalis, or a puparium ma ...
... • The third type of development is called holometabolous metamorphosis. Immatures are called larvae (caterpillars of moths and beetles). Larvae have a species specific number of molts and the final molt results in formation of a pupae. A protective case called a cocoon, a chrysalis, or a puparium ma ...
Main Points Moths (Lepidoptera) Brownheaded Leafrollers
... wind currents by silken threads. Larvae moult five or six times eventually reaching 15 to 20mm in length. After the final larval stage, caterpillars form a pupa, often within the final feeding site. Adult moths emerge from the pupae after a variable length of time depending on temperature. Approxima ...
... wind currents by silken threads. Larvae moult five or six times eventually reaching 15 to 20mm in length. After the final larval stage, caterpillars form a pupa, often within the final feeding site. Adult moths emerge from the pupae after a variable length of time depending on temperature. Approxima ...
diversity, ecosystem function, and stability of parasitoid
... The 48 study plots were spread across three cantons in the region of Jipijapa (1819 0 6000 S, 80834 0 6000 W, 259 m above sea level [asl]), Pajan (1834 0 0000 S, 80825 0 0000 W, 142 m asl), and 24 de Mayo (largest town: Noboa, 1824 0 0000 S, 80823 0 0000 W, 260 m asl), within the province of Manabi, ...
... The 48 study plots were spread across three cantons in the region of Jipijapa (1819 0 6000 S, 80834 0 6000 W, 259 m above sea level [asl]), Pajan (1834 0 0000 S, 80825 0 0000 W, 142 m asl), and 24 de Mayo (largest town: Noboa, 1824 0 0000 S, 80823 0 0000 W, 260 m asl), within the province of Manabi, ...
Interactions Between Entomopathogenic Fungi and Other
... range with respect to North American grasshopper s with the potential that non-pest grasshoppers may become infected (Lockwood, 1993). However, in the ® eld, only 8 out of 20 grasshopper species were infected and these were all pest species (Carruthers et al., 1997). Although this limited host range ...
... range with respect to North American grasshopper s with the potential that non-pest grasshoppers may become infected (Lockwood, 1993). However, in the ® eld, only 8 out of 20 grasshopper species were infected and these were all pest species (Carruthers et al., 1997). Although this limited host range ...
Understanding the evolution and function of entomopathogenic fungi
... In contrast, mammalian pathogens are far less lethal. The majority of directly transmitted human pathogens, for example, cause less than 0.1% population mortality and epidemics are extremely rare, even accounting for medical intervention. Note however that vector borne diseases are significantly mor ...
... In contrast, mammalian pathogens are far less lethal. The majority of directly transmitted human pathogens, for example, cause less than 0.1% population mortality and epidemics are extremely rare, even accounting for medical intervention. Note however that vector borne diseases are significantly mor ...
Rain forest promotes trophic interactions and diversity of
... ized at the same time per agroforestry system, resulting in estimates of the number of total plant species and the percentage of vegetation cover. Percentage cover of flowering plants was calculated for each system with a mean of eight different estimations, three times in December 2000 to January 2 ...
... ized at the same time per agroforestry system, resulting in estimates of the number of total plant species and the percentage of vegetation cover. Percentage cover of flowering plants was calculated for each system with a mean of eight different estimations, three times in December 2000 to January 2 ...
Relationships Option 2
... SYMBIOTIC RELATIONSHIPS: Organisms living together resulting in at least one of them benefitting from the other. How are these organisms interacting with each other? ...
... SYMBIOTIC RELATIONSHIPS: Organisms living together resulting in at least one of them benefitting from the other. How are these organisms interacting with each other? ...
Sneaky African fig wasps that oviposit through holes drilled by other
... from the trunk and major branches (Berg & Wiebes 1992). Ficus artocarpoides Warb. is restricted to central Africa (northern Angola to eastern Uganda and west to Guinea) where it is associated with rainforest and gallery forest up to an altitude of 1600 m (Berg & Wiebes 1992; Rasplus et al. 2003). Th ...
... from the trunk and major branches (Berg & Wiebes 1992). Ficus artocarpoides Warb. is restricted to central Africa (northern Angola to eastern Uganda and west to Guinea) where it is associated with rainforest and gallery forest up to an altitude of 1600 m (Berg & Wiebes 1992; Rasplus et al. 2003). Th ...
What constrains the geographic and host range of the Emily Boone
... green crab, Carcinus maenas, which has had negative impacts upon salt marsh communities in New England, California, Canada, Australia, Tasmania and South Africa (Lafferty and Kuris, 1996). Lafferty and Kuris (1996) suggested that introducing the rhizocephalan, Sacculina carcini, which is a parasitic ...
... green crab, Carcinus maenas, which has had negative impacts upon salt marsh communities in New England, California, Canada, Australia, Tasmania and South Africa (Lafferty and Kuris, 1996). Lafferty and Kuris (1996) suggested that introducing the rhizocephalan, Sacculina carcini, which is a parasitic ...
Lecture 14 - Biocontrol
... • Not eradicative (is this really a constraint?) • Biocontrol agents unknown for many pest species. • Doesn’t always work – Historically only one out of four attempts has been successful ...
... • Not eradicative (is this really a constraint?) • Biocontrol agents unknown for many pest species. • Doesn’t always work – Historically only one out of four attempts has been successful ...
ymbiosis Notes
... Mutualism = _______________________________________________________ from the association. The example above is a lichen growing on the trunk of a mangrove tree. Consists of _____________ and an _____________ growing together. The fungus gets_________ from the ______________________________and ...
... Mutualism = _______________________________________________________ from the association. The example above is a lichen growing on the trunk of a mangrove tree. Consists of _____________ and an _____________ growing together. The fungus gets_________ from the ______________________________and ...
What are the benefits in the ascidian-Prochloron
... Occurrence of the intracellular symbiosis The intracellular distribution of Prochloron cells was first reported in Lissoclinum voeltskowi; amoebocytes occasionally found in the cloacal cavity ingest the symbiont cells (Cox, 1983). Similar observations were reported in the cloacal cavity in Lissoclin ...
... Occurrence of the intracellular symbiosis The intracellular distribution of Prochloron cells was first reported in Lissoclinum voeltskowi; amoebocytes occasionally found in the cloacal cavity ingest the symbiont cells (Cox, 1983). Similar observations were reported in the cloacal cavity in Lissoclin ...
Chapter 25 Communicaton Ecology 25.1 INTERACTIONS AMONG
... Parasie is usully much smaller than the prey and hard to distinguish btw other symbiosis A. External Parasites/ectoparasites live outside, lice, not mosquitos (because of brief interaction) (1) Parasitoids, lay eggs in lvining host, i.e. wasps B. Internal Parasites/endoparasites: live inside host, n ...
... Parasie is usully much smaller than the prey and hard to distinguish btw other symbiosis A. External Parasites/ectoparasites live outside, lice, not mosquitos (because of brief interaction) (1) Parasitoids, lay eggs in lvining host, i.e. wasps B. Internal Parasites/endoparasites: live inside host, n ...
Insect mimicry
... ladybird beetles and milkweed beetles) are using their bright colors to warn other animals that they are distasteful and should not be eaten. Other insects (such as black-and-yellow bees and wasps) are telling other animals to stay away because they can defend themselves by stinging. ...
... ladybird beetles and milkweed beetles) are using their bright colors to warn other animals that they are distasteful and should not be eaten. Other insects (such as black-and-yellow bees and wasps) are telling other animals to stay away because they can defend themselves by stinging. ...
Insects_NaturalPestControl_MotherEarth
... Organic Remedies for Garden Pests By Mother Earth News ...
... Organic Remedies for Garden Pests By Mother Earth News ...
Designing and Implementing a Habitat Management Strategy to
... specialists, targeting either a single host species or several related species, or they can be generalists, developing in many types of hosts. Typically, they attack hosts larger than themselves, eating most or all of their hosts’ bodies before pupating inside or outside them. With their uncanny abi ...
... specialists, targeting either a single host species or several related species, or they can be generalists, developing in many types of hosts. Typically, they attack hosts larger than themselves, eating most or all of their hosts’ bodies before pupating inside or outside them. With their uncanny abi ...
View/Open - Oregon State University
... The distinction between host diversity, host community composition, and trait variability [23] is ...
... The distinction between host diversity, host community composition, and trait variability [23] is ...
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.