Presentation

ASCETE

An association for orthopterists and entomocenoticians

1. Scientific purposes

1 1. Entomocenotique

The ASCETE¹ proposes to develop the inventory of the entomocenoses (those being characterized, more or less, on a statistical basis) on the one hand, and the other part the study of their ecological determinism (identification of the effective factors) complemented by dynamic patterns (climax series reconstruction), the geographical extension, and even putting in place history.

Several methods can be implemented to characterize (# associations) synusies of insects: PCA, factorial analysis of correspondences, Agglomerative Hierarchical, etc. But that advocates B. Defaut through ASCETE is, basically, to apply to insect the trace method: field surveys which are similar by their faunal composition came together to form a synusia, synusies resembling constitute an alliance, alliances which resemble constitute an order, and so on with classes and divisions. So developing a syntaxonomique system from field surveys, which are the only concrete items in this entomocenotique approach. Of course field surveys must have been carried out on homogeneous faunistiquement surfaces.

It can be seen then that units senior syntaxonomiques, divisions, classes, orders, are generally correlated with chorologic or climatic parameters (including annual aridity indices and the average annual temperature) and units of lower rank, alliances and synusies, are with site parameters (in particular arido-humidity, the bare soil percentage, percent tree cover the height and density of the herbaceous stratum).

The entomocenotique allows a truly synthetic Entomological world view. And this is very satisfying intellectually. B.Defaut described in detail this method of study applied to the Orthoptera insect in an edited book there are a few annees².

1-2. Orthoptera

At the extraordinary general meeting of April 6, 2002 it was decided to extend the scope of activity of the ASCETE to the study of the Orthoptera of France and neighbouring French-speaking countries. The themes treated in priority, including in the magazine, are listed on the Publications page.

2. Interim goals

Conservatory order decisions are usually based on the discovery of remarkable species at regional or local, on the occasion of faunal inventories.

The cenotique approach adds to the concept of species that remarkable combination of remarkable species. This concerns in particular the endemic synusies, IE restricted geographical extension (the presence of species themselves endemic is not mandatory), and relict synusies (which may very well be devoid of relict species). Also the list of species of a synusia, its average specific sales, its coefficient of scarcity, the coefficient of similarity and the coefficient of originality of each of its constituent surveys, are tools for the Manager, whether it is the assessment of the State of health of the community, the choice of those who will be to protect, or modes of management to adopt , and their follow-up.

B. Defaut showed in some of his recent studies how you could use these tools (refer to the complete list of the journal articles, and also to: entomocenotique as a precautionary management tool.) Heritage natural, 1996, 25, 97-105.

3. The journal (materials Entomocenotiques for volumes 1 to 7, materials Orthopteriques) and Entomo-cenotiques since volume 8

It is currently the most concrete cement of ASCETE. Its publication is annual. It is intended primarily to accommodate articles of the orthopteristes and Francophone entomocenoticians. (see ‘Publications‘)

4. Other publications

4 1. The Synopsis of the Orthoptera of France

See the Synopsis page

4 2. Contribution to the knowledge of the cicadas of France: chorology and ecology of populations (Hemiptera, Cicadidae)

See Cicadas

5. Amount of contributions

Currently the rates are as follows:

Individual contributions:

  • 5 euro for simple membership.
  • 20 euros for the accession coupled with the subscription to the journal.

Tariff of the contributions by legal persons (with mandatory membership and)
subscription):

During the last General Assembly the following rates have been adopted:

  • Nature reserves, libraries, Office of studies and associations law of 1901 with 1,500 members: 20 euros, corresponding to the sending of a number.
  • Associations with 501 to 1,000 members: 35 EUR, corresponding to the sending of two numbers.
  • Associations with more than 1,000 members: 50 euros, corresponding to the sending of three numbers.

To join us, visit the ‘Membership’ page

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¹ ASsociation for the characterization and study of the Entomocenoses.

² orthopteriques synusies in Western Palaearctic region. Publication ANA, “Coats”, 09240 La Bastide-de-Sérou, 1994.