Chemical communication, intraspecific

In the marine environment, chemical communications are naturally facilitated by the vectorial function of the water, which ensures widespread distribution whatever the site or type of mediator. They play a significant role in widely different fields, both at the intraspecific (sexual behaviour, trailing, recognition, migration, alarm) and interspecific (nutrition, predation, defence, pseudo-social relationships, commensalism) levels. 

In this chapter, we review the ways whereby lobsters chemically communicate with each other and the contexts in which they do it. We make a distinction between different types of chemicals. Based on the terminology of Wyatt (Chap. 2), we use semiochemicals as chemicals involved in animal interactions and pheromones as a subset of semiochemicals used in intraspecific contexts. We also use cues as chemicals that benefit the receiver and not necessarily the sender, with a prime example being alarm cues released in the blood of injured conspecifics. 

In termites intracolony, intraindividual and intraspecific variation may be provided by the secretions of the soldiers. The multiple functions of these semiochemicals in defense, recognition and reproductive isolation is an unusual means of chemical communication and will be discussed later. 

Induced responses Intraspecific chemical communication Chemically mediated homing behavior... 

Jaeger, R.G. C.R. Gabor. 1993. Intraspecific chemical communication by a territorial salamander via the postcloacal gland. Copeia 1993 1171-1174. 

Chemical ecology, whether marine or terrestrial, can be summarized as a very general phenomenon the recognition of self and non-self that is expressed in all forms of interaction between living organisms. In the marine environment, almost all of these interactions are mediated by chemical communication systems that are the basis of relationships between the same species (intraspecific relationships) or different species (interspecific relationships). This exchange of chemical information is... 

Attractive Compounds. While the defence chemistry of ladybird beetles has been extensively investigated, little is known about intraspecific communication. The role of chemical and behavioural cues has been described in mate recognition in Adalia bipunctata. Cuticular hydrocarbons, especially 7- and 9-methyltri-cosane seem to play an important role [301]. In Coccinella septempunctata, 2-isopropyl-3-methoxypyrazine 158 (see Scheme 17) accounting for the dis-... 

Attractive Compounds. Despite the fact that defence chemistry and insect-plant interactions have been extensively investigated in many leaf beetle species, not too much is known about the chemical background of intraspecific communication. 

Scorpions have never really been used as a model to study the role of chemical signals in intraspecific and sexual communication. Up to now sex pheromones have been described... 

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