Host location and exploitation by the cleptoparasitic wasp Argochrysis armilla: the role of learning (Hymenoptera: Chrysididae)

This study investigates the relationship between the subsidiary’s external knowledge sourcing in the host network of operation and innovative performance, and the moderating role of (i) alternative sources of knowledge (those related to the internal and external home knowledge network) and (ii) Intellectual Property Rights (IPRs) distance between the host and the home location of the Multinational Enterprise (MNE). Based on a dataset comprising 170 R&D subsidiaries (classified by 57 parent companies and 23 host countries) it is shown that a curvilinear (inverted U-shaped) relationship exists between external host knowledge sourcing and innovative performance. In terms of the moderating effects, the findings reveal that the influence of alternative sources of knowledge affects the aforementioned relationship in a negative way. Finally, a stronger IPR protection regime in the host location weakens, rather than strengthens the relationship between the external host knowledge sourcing and innovative performance.

Download Full-text

Host location by the fruit fly parasitoid Diachasmimorpha krausii: role of fruit fly species, life stage and host plant

Agricultural and Forest Entomology ◽

10.1111/j.1461-9563.2011.00545.x ◽

2011 ◽

Vol 14 (1) ◽

pp. 101-110 ◽

Cited By ~ 10

Author(s):

Mark M. Ero ◽

Anthony R. Clarke

Keyword(s):

Host Plant ◽

Host Location ◽

Life Stage ◽

Fruit Fly

Download Full-text

Habitat selection and host location by symbiotic shrimps associated with Sargassum communities: The role of chemical and visual cues

Symbiosis ◽

10.1007/s13199-009-0017-y ◽

2009 ◽

Vol 49 (2) ◽

pp. 77-85 ◽

Cited By ~ 5

Author(s):

Corrine F. Jobe ◽

W. Randy Brooks

Keyword(s):

Habitat Selection ◽

Visual Cues ◽

Host Location

Download Full-text

Chemoecological role of mammalian urine in host location by tsetse,Glossina spp. (Diptera: Glossinidae)

Journal of Chemical Ecology ◽

10.1007/bf02027954 ◽

1996 ◽

Vol 22 (6) ◽

pp. 1187-1199 ◽

Cited By ~ 13

Author(s):

L. Chuka Madubunyi ◽

A. Hassanali ◽

W. Ouma ◽

D. Nyarango ◽

J. Kabii

Keyword(s):

Host Location

Download Full-text

Role of kairomones in host location of the pennellid copepod parasite, Lernaeocera branchialis (L. 1767)

Parasitology ◽

10.1017/s0031182012002119 ◽

2013 ◽

Vol 140 (6) ◽

pp. 756-770 ◽

Cited By ~ 6

Author(s):

A. J. BROOKER ◽

A. P. SHINN ◽

S. SOUISSI ◽

J. E. BRON

Keyword(s):

Life Cycle ◽

Adult Female ◽

Gadus Morhua ◽

Host Location ◽

Parasitic Copepod ◽

Homogeneous Population ◽

Host Seeking ◽

Merlangius Merlangus ◽

Genetically Determined

SUMMARYThe life cycle of the parasitic copepod Lernaeocera branchialis involves 2 hosts, typically a pleuronectiform host upon which development of larvae and mating of adults occurs and a subsequent gadoid host, upon which the adult female feeds and reproduces. Both the copepodid and adult female stages must therefore locate and identify a suitable host to continue the life cycle. Several mechanisms are potentially involved in locating a host and ensuring its suitability for infection. These may include mechano-reception to detect host movement and chemo-reception to recognize host-associated chemical cues, or kairomones. The aim of this study was to identify the role of kairomones in host location by adult L. branchialis, by analysing their behaviour in response to fish-derived chemicals. Experiments demonstrated that water conditioned by immersion of whiting, Merlangius merlangus, elicited host-seeking behaviour in L. branchialis, whereas cod- (Gadus morhua) conditioned water did not. Lernaeocera branchialis are considered a genetically homogeneous population infecting a range of gadoids. However, their differential response to whiting- and cod-derived chemicals in this study suggests that either there are genetically determined subspecies of L. branchialis or there is some form of environmental pre-conditioning that allows the parasite to preferentially recognize the host species from which it originated.

Download Full-text