Search Results - "KHOKHLOVA, I. S."

Ectoparasite fitness in auxiliary hosts: phylogenetic distance from a principal host matters by Khokhlova, I. S., Fielden, L. J., Degen, A. A., Krasnov, B. R.

“…We studied reproductive performance in two flea species (Parapulex chephrenis and Xenopsylla ramesis) exploiting either a principal or one of eight auxiliary…”
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Use it or lose it: reproductive implications of ecological specialization in a haematophagous ectoparasite by ARBIV, A., KHOKHLOVA, I. S., OVADIA, O., NOVOPLANSKY, A., KRASNOV, B. R.

“…Using experimentally induced disruptive selection, we tested two hypotheses regarding the evolution of specialization in parasites. The ‘trade‐off’ hypothesis…”
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Is a Starving Host Tastier? Reproduction in Fleas Parasitizing Food-Limited Rodents by Krasnov, B. R., Khokhlova, I. S., Arakelyan, M. S., Degen, A. A.

“…1. We hypothesized that food availability, and therefore body condition, of a rodent host, Meriones crassus, affects egg production and survival, and…”
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Relationships between parasite abundance and the taxonomic distance among a parasite's host species: an example with fleas parasitic on small mammals by Krasnov, B.R., Shenbrot, G.I., Khokhlova, I.S., Poulin, R.

“…Opportunistic parasite species, capable of exploiting several different host species, do not achieve the same abundance on all these hosts. Parasites achieve…”
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The effect of larval density on pre-imaginal development in two species of desert fleas by Khokhlova, I S, Hovhanyan, A, Degen, A Allan, Krasnov, B R

“…We studied the effect of density of larvae on pre-imaginal development in 2 flea species (Xenopsylla conformis and Xenopsylla ramesis) parasitic on 2 desert…”
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Age, intensity of infestation by flea parasites and body mass loss in a rodent host by Hawlena, H, Khokhlova, I S, Abramsky, Z, Krasnov, B R

“…Parasitism by the flea Synosternus cleopatrae does not affect the body mass of its principal rodent host, Gerbillus andersoni under natural infestation levels…”
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Effects of parasite specificity and previous infestation of hosts on the feeding and reproductive success of rodent-infesting fleas by Khokhlova, I. S., Ghazaryan, L., Krasnov, B. R., Degen, A. A.

“…1. We examined whether identity of the rodent host and previous infestation of the host affect feeding and reproduction of fleas. We predicted that feeding and…”
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Flea Infestation and Energy Requirements of Rodent Hosts: Are There General Rules? by H. Hawlena, Krasnov, B. R., Abramsky, Z., Khokhlova, I. S., Saltz, D., Kam, M., Tamir, A., Degen, A. A.

“…1. Two immunological tactics, a constitutive response that is always present, and an induced response that is only employed after an invader has been…”
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Sex ratio in flea infrapopulations: number of fleas, host gender and host age do not have an effect by Krasnov, B R, Shenbrot, G I, Khokhlova, I S, Hawlena, H, Degen, A A

“…This study set out to determine whether the sex ratio of fleas collected from host bodies is a reliable indicator of sex ratio in the entire flea population…”
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Development rates of two Xenopsylla flea species in relation to air temperature and humidity by Krasnov, B. R., Khokhlova, I. S., Fielden, L. J., Burdelova, N. V.

“… The rate of development of immature fleas, Xenopsylla conformis Wagner and Xenopsylla ramesis Rothschild (Siphonaptera: Xenopsyllidae) was studied in the…”
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Covariance in species diversity and facilitation among non-interactive parasite taxa: all against the host by Krasnov, B R, Mouillot, D, Khokhlova, I S, Shenbrot, G I, Poulin, R

“…Different parasite taxa exploit different host resources and are often unlikely to interact directly. It is unclear, however, whether the diversity of any…”
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Host-habitat relations as an important determinant of spatial distribution of flea assemblages (Siphonaptera) on rodents in the Negev Desert by Krasnov, B R, Shenbrot, G I, Medvedev, S G, Vatschenok, V S, Khokhlova, I S

“…We studied flea assemblages on rodents in different habitats of the Ramon erosion cirque in the Negev Desert to examine whether host-habitat relations…”
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Immunocompetence and Flea Parasitism of a Desert Rodent by de Bellocq, J. Goüy, Krasnov, B. R., Khokhlova, I. S., Ghazaryan, L., Pinshow, B.

“…1. Immunocompetence is the general capacity of an organism to mount an immune response against pathogens and parasites. We studied the relationship between the…”
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Host specificity and foraging efficiency in blood-sucking parasite: feeding patterns of the flea Parapulex chephrenis on two species of desert rodents by KRASNOV, B. R, SARFATI, M, ARAKELYAN, M. S, KHOKHLOVA, I. S, BURDELOVA, N. V, DEGEN, A. A

“…Parasite species can adapt to ecological, behavioral, physiological and biochemical traits of a particular host species. The flea Parapulex chephrenis occurs…”
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Density dependence of feeding success in haematophagous ectoparasites by Krasnov, B R, Hovhanyan, A, Khokhlova, I S, Degen, A A

“…We studied the effect of density on feeding success of 2 fleas, Xenopsylla conformis and Xenopsylla ramesis, when exploiting rodents Meriones crassus and…”
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Time of survival under starvation in two flea species (Siphonaptera: Pulicidae) at different air temperatures and relative humidities by Krasnov, B R, Khokhlova, I S, Fielden, L J, Burdelova, N I

“…We studied the effect of air temperature and RH on the survival time of adult Xenopsylla conformis Wagner, 1903 and Xenopsylla ramesis Rothschild, 1904 fleas…”
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Abundance and distribution of fleas on desert rodents: linking Taylor's power law to ecological specialization and epidemiology by Krasnov, B R, Morand, S, Khokhlova, I S, Shenbrot, G I, Hawlena, H

“…We investigated variation in the abundance-prevalence relationships of fleas among 17 different flea-host associations as well as among different species of…”
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Energy cost of ectoparasitism: the flea Xenopsylla ramesis on the desert gerbil Gerbillus dasyurus by Khokhlova, I. S., Krasnov, B. R., Kam, M., Burdelova, N. I., Degen, A. A.

“…Metabolizable energy intake and changes in body mass was measured in the desert gerbil Gerbillus dasyurus when parasitized by the flea Xenopsylla ramesis. We…”
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Resource predictability and host specificity in fleas: the effect of host body mass by Krasnov, B R, Morand, S, Mouillot, D, Shenbrot, G I, Khokhlova, I S, Poulin, R

“…Ecological specialization is hypothesized to result from the exploitation of predictable resource bases. For parasitic organisms, one prediction is that…”
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Annual cycles of four flea species in the central Negev desert by KRASNOV, B. R., BURDELOVA, N. V., SHENBROT, G. I., KHOKHLOVA, I. S.

“…Bionomics of fleas (Siphonaptera) parasitizing rodent hosts, mostly the gerbil Gerbillus dasyurus (Wagner) and the jird Meriones crassus Sundevall…”
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