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Immune response to nylon filaments in two damselfly species that differ in their resistance to ectoparasitic mites
1. Insects commonly resist parasites using melanotic encapsulation. Many studies measuring immune response use the amount of melanin deposited on an artificial object that has been inserted into the… Expand
Relative geographic range of sibling species of host damselflies does not reliably predict differential parasitism by water mites
BackgroundOne of the main challenges in evolutionary parasitology is to determine the factors that explain variation among host species in parasitism. In this study, we addressed whether host… Expand
Explaining Susceptibility and Resistance to a Multi-Host Parasite
Closely related host species are known to show variation in the level of resistance towards the same or similar parasite species, but this phenomenon is understudied. Such studies are important for… Expand
Host phenology, geographic range size and regional occurrence explain interspecific variation in damselfly–water mite associations
In this study, we tested which host species ’ characteristics explain the nature and level of parasitism for host damselfl y (Coenagrionidae) – water mite (Arrenuridae) parasite associations.… Expand
Higher gregarine parasitism often in sibling species of host damselflies with smaller geographical distributions
1. This study investigated inter‐specific variation in parasitism by gregarines (Eugregarinorida: Actinocephalidae), among sibling species of damselflies (Odonata: Zygoptera), in relation to relative… Expand
Comparing natural parasitism and resistance with proxies of host immune response in Lestid damselflies
Commonly used proxies for measuring immune responses in invertebrates include the amount of melanin deposited on nylon inserts and assays of activity of the enzyme phenoloxidase (PO) in the… Expand
Enemy escape: A general phenomenon in a fragmented literature?
Many populations are thought to be regulated, in part, by their natural enemies. If so, disruption of this regulation should allow rapid population growth. Such “enemy escape” may occur in a variet...
Relationships Between Gregarine Infection in Damselflies, Wetland Type, and Landscape Characteristics
- Julia J Mlynarek, Daniel G. Bert, G. H. Peralta-Vázquez, Joanna A. James, M. Forbes
- The Canadian Entomologist
- 1 September 2011
Abstract Although human-modified landscapes are characterized by the loss of natural habitats, new habitats also can be created and exploited by many species. The importance of landscape change to… Expand
Seasonality of gregarine parasitism in the damselfly, Nehalennia irene: understanding unimodal patterns
We studied parasitism by gut protozoans (Apicomplexa: Eugregarinidae) in the damselfly, Nehalennia irene (Hagen) (Odonata: Coenagrionidae). We tested whether there was any seasonal pattern, as has… Expand
Regionally widespread parasitic water mites have relatively broad host-species ranges
Certain parasite species have free-living stages, so habitat range may influence host-species range. We tested whether regional occurrence and habitat use of parasitic water mites were related to… Expand