Species differences in bumblebee immune response predict developmental success of a parasitoid fly

  title={Species differences in bumblebee immune response predict developmental success of a parasitoid fly},
  author={Staige E. Davis and Rosemary L. Malfi and T’ai H. Roulston},
Endoparasitoids develop inside the body of a host organism and, if successful, eventually kill their host in order to reach maturity. Host species can vary in their suitability for a developing endoparasitoid; in particular, the host immune response, which can suppress egg hatching and larval development, has been hypothesized to be one of the most important determinants of parasitoid host range. In this study, we investigated whether three bumblebee host species (Bombus bimaculatus, Bombus… Expand
4 Citations
Host-parasitoid interactions between the solitary bee Centris analis (Apidae: Centridini) and conopid flies (Diptera: Conopidae)
This study is aimed at analyzing attacks by conopid flies in one of their hosts, the solitary bee species Centris analis (Apidae: Centridini), and the consequences in the nesting behavior of this bee species. Expand
Novel multiplex PCR reveals multiple trypanosomatid species infecting North American bumble bees (Hymenoptera: Apidae: Bombus).
A multiplex PCR protocol using species-specific primers with a universal trypanosomatid primer set to detect unexpected relatives is developed, effective in diagnosing known bumble bee infecting Crithidia species, and allowing for the discovery of unknown potential symbionts. Expand
Community ecology of the 'other' parasitoids.
The ecology of non-hymenopteran ('NH') parasitoid communities is poorly known, but recent work indicates that habitat and host traits have strong impacts on the size and composition of these parasitoids assemblages. Expand


Parasitoid fly induces manipulative grave-digging behaviour differentially across its bumblebee hosts
It is posited that the ability to induce an important behavioural response influences host competency as well, and that host susceptibility to behavioural manipulation could have implications for selection. Expand
Qualitatively different immune response of the bumblebee host, Bombus terrestris, to infection by different genotypes of the trypanosome gut parasite, Crithidia bombi.
  • S. Barribeau, P. Schmid-Hempel
  • Biology, Medicine
  • Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases
  • 2013
Examination of expression of 26 immunological and metabolic genes in response to infection by two clones of C. bombi found strong correlations, both positive and negative, among genes, which may shed light on how suites of genes are regulated and trade-offs in expression within this gene set. Expand
Larval development of two parasitic flies (Conopidae) in the common host Bombus pascuorum
The estimates for developmental times and the patterns found in this study suggest that conopid larvae seem capable of physical attacks, particularly during the first instar, when elimination of competitors is most common, and that S.ferrugineus has a time advantage because of its faster early development. Expand
Host defensive response against an egg parasitoid involves cellular encapsulation and melanization
This is the first conclusive evidence that hosts in the egg stage can mount a cellular immune response against a metazoan parasitoid, and may provide insight into the mechanisms underlying the host specificity of many egg parasitoids. Expand
Differences in Cellular Immune Competence Explain Parasitoid Resistance for Two Coleopteran Species
A striking difference in parasitism rate between the species is found, as well as in the level of successful immune response (i.e. encapsulation and melanisation of parasitoid eggs), with G. pusilla showing a much more potent immune defense than G. calmariensis. Expand
Host Selection By Asobara Tabida Nees (Braconidae;Alysiinae) a Larval Parasitoid of Fruit Inhabiting Drosophila Species
Oviposition by A. tabida in larvae of alien Drosophila species with a low survival probability for the parasitoid's eggs may therefore only occur when native host species are scarce and may thus help the Parasitoid to persist during the period when the preferred hosts cannot be found. Expand
Host range in solitary versus gregarious parasitoids: a laboratory experiment
Interactions among wasp larvae do not greatly affect the size of the fundamental niche examined here, but the potential for life history traits, which differ between the species as a likely consequence of larval interactions, to affect the extent of the realized niche is shown. Expand
Relationships between parasitoid host range and host defence: a comparative study of egg encapsulation in two related parasitoid species
It is argued that encapsulation alone is unlikely to provide a sufficient explanation for C. glomerata and C. rubecula host range, and percentages of encapsulation of C. Rubecula were not consistent with host preference and host suitability. Expand
Host choice and fitness correlates for conopid flies parasitising bumblebees
Pupal weight, a predictor of adult body size and parasitoid fecundity, is positively correlated with host size and larger pupae are more likely to emerge, while host species had no effect on the probability of emergence in either conopid species. Expand
Immunocompetence increases with larval body size in a phytophagous moth
Investigation of variations in haemocyte count and phenoloxidase activity in larvae of the phytophagous vine moth Eupoecilia ambiguella Hübner suggests that body size is probably an underestimated variable, which nevertheless modulates the insect immune system and should thus be considered as a covariate in Insect immune system measurement. Expand