none Techniques; Ecological techniques; Mathematical techniques; Nutrition; Diet; Feeding; Carnivorous feeding; Predation; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Ecology; Population dynamics; Land and freshwater zones; Nearctic region; North America; USA Enoclerus sphegeus; Thanasimus undatulus (Cleridae ); Temnochila chlorodia (Trogositidae ); Prey; Dendroctonus pseudotsugae, prey abundance relationship; Predator prey interactions; Dendroctonus prey abundance relations; Seasonal abundance; Dendroctonus pseudotsugae prey abundance relationships, model; Idaho Dendroctonus pseudotsugae (Scolytidae); Ecological modelling; Graphic representation, plant host & predator interactions model; Hymenopteran parasites; Cecidostiba; Coeloides & Roptrocerus, seasonal abundance relationships; Plant hosts; Pseudotsuga menziesii (Douglas fir); Seasonal prevalence, location & predator abundance relations; Distribution within host; Pseudotsuga menziensii (plant), seasonal abundance relation; Prevalence; Seasonal in Pseudotsuga menziensii (plant); Reaction of host to parasite; Hymenopteran parasite prevalence, abundance relations; Predators; Coleoptera & Diptera; Predator abundance, seasonal abundance relationship, model; Idaho; Central; Seasonal abundance, plant host & predator interactions Medetera (Dolichopodidae ); Belosta albipilosa (Scenopinidae ); Ecological modelling; Graphic representation; Seasonal abundance, coleopteran prey abundance interactions model; Prey; Dendroctonus pseudotsugae (Coleoptera); Seasonal abundance interactions; Predator prey interactions; Coleopteran prey seasonal abundance relationships, model; Idaho; Central; Seasonal abundance interactions with coleopteran prey Coeloides vancouverensis (Braconidae ); Cecidostiba; Roptrocerus eccoptogasteri (Pteromalidae ); Ecological modelling; Graphic representation; Seasonal abundance, coleopteran host abundance interactions model; Coleopteran hosts; Dendroctonus pseudotsugae, host seasonal abundance relations; Prevalence; Reaction of host to parasite; Dendroctonus (Coleoptera) host seasonal abundance, relation, model; Idaho; Central; Seasonal abundance interactions with coleopteran parasites