Prey or host searching behavior that leads to a sigmoid functional response in invertebrate predators and parasitoids

1979 ◽  
Vol 20 (2) ◽  
pp. 257-264 ◽  
Author(s):  
Robert F. Luck ◽  
Joop C. van Lenteren ◽  
Peter H. Twine ◽  
Lodewyk Juenen ◽  
Thomas Unruh
Keyword(s):  
Functional Response ◽  
Searching Behavior ◽  
Host Searching ◽  
Invertebrate Predators ◽  
Sigmoid Functional Response

scholarly journals The attraction of Tremex apicalis (Hymenoptera, Siricidae, Tremecinae) and its parasitoid Ibalia japonica (Hymenoptera, Ibaliidae) to the fungus Cerrena unicolor

2019 ◽  
Vol 68 ◽  
pp. 37-48 ◽  
Author(s):  
Kazumu Kuramitsu ◽  
Teruhito Ishihara ◽  
Aki Sugita ◽  
Thitaree Yooboon ◽  
Barry Lustig ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Dna Barcode ◽  
White Rot Fungi ◽  
White Rot ◽  
Searching Behavior ◽  
Host Searching ◽  
Additional Species ◽  
Saproxylic Insects ◽  
Symbiotic Fungi

Woodwasps (Hymenoptera: Siricidae) are saproxylic insects and a common forest pest. Siricid woodwasps are classified into two subfamilies: Siricinae and Tremecinae. All known symbiotic fungi of Siricinae are in the genusAmylostereumBoidin while some species of Tremecinae have been observed to have a relationship with the fungusCerrenaunicolor(Bull.) Murrill. Previous studies about the host searching behavior of woodwasps and their parasitoids have focused primarily on the subfamily Siricinae.We analyzed the role ofC.unicolorvolatiles on the host searching behavior ofTremexapicalisMatsumura (Hymenoptera: Siricidae: Tremecinae) and its parasitoid Ibalia (Tremibalia) japonica Matsumura (Hymenoptera: Ibaliidae). The results of an olfactory response experiment indicated that the females ofT.apicalisand its parasitoid find their respective hosts using volatiles fromC.unicolor. Using DNA barcode, we identified basidiocarps on the trees infested withT.apicalis.The basidiocarps were all white-rot fungi that cause sapwood decay, includingC.unicolor. Two additional species that we identified belonged to genera closely related toC.unicolor.Woodwasp species are known to carry symbiotic fungi in a pair of specialized sacs called mycangia. Notably we found that mycangia-like structures were absent in the abdomens ofT.apicalisfemales. To the best of our knowledge,Xerisspectrum(Linnaeus) (Hymenoptera: Siricidae) is the only reported example of woodwasp species that do not contain symbiotic fungi in their bodies.Our results suggested that: (1)T.apicalisfemales search for host wood that is already infected with sapwood decaying fungus using volatile compounds; (2)T.apicalis’ female parasitoid also uses volatile compounds from fungus to locate wood that is infested with its potential host.

A Leslie–Gower-type predator–prey model with sigmoid functional response

2014 ◽  
Vol 92 (9) ◽  
pp. 1895-1909 ◽  
Author(s):  
Eduardo González-Olivares ◽  
Paulo C. Tintinago-Ruiz ◽  
Alejandro Rojas-Palma
Keyword(s):  
Functional Response ◽  
Predator Prey ◽  
Predator Prey Model ◽  
Prey Model ◽  
Sigmoid Functional Response

scholarly journals Bt rice does not disrupt the host-searching behavior of the parasitoid Cotesia chilonis

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Qingsong Liu ◽  
Jörg Romeis ◽  
Huilin Yu ◽  
Yongjun Zhang ◽  
Yunhe Li ◽  
...  
Keyword(s):  
Searching Behavior ◽  
Host Searching ◽  
Bt Rice ◽  
Cotesia Chilonis
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