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SYSTEMATICS AND ENTOMOLOGY: SOME MAJOR THEMES

Published online by Cambridge University Press:  31 May 2012

H.V. Danks  and
George E. Ball
H.V. Danks
Affiliation:
Biological Survey of Canada (Terrestrial Arthropods), Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario, Canada K1P 6P4
George E. Ball
Affiliation:
Department of Entomology, University of Alberta, Edmonton, Alberta, Canada T6G 2E3
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Abstract

Systematics allows the extraordinary diversity of biological systems to be understood, and information about organisms to be organized and made accessible. Key patterns that help to interpret natural processes can be summarized, and biological traits predicted, by determining the relationships of natural taxa. Ecological roles are made visible and existing knowledge is made accessible only through specific names. Most organismic diversity is represented by terrestrial arthropods, but knowledge is very incomplete. Even for species found in Canada, half have not been described and the immature stages of most are unknown.Systematics supports entomology and underpins studies of biology in many different ways. From these roles, understanding is gained about diversity and evolution, distributions and biogeographically significant regions of the country, adaptations as related especially to species interactions and metamorphosis, and the application of systematics information. In addition, the values of basic systematic work, modern techniques, and long-term coordinated efforts in studying the fauna are emphasized.A coordinated study of diversity by systematists in conjunction with ecologists and others is required. Such a coordinated approach is timely given recent recognition that the world depends on self-sustaining but increasingly threatened biological systems. Diverse organisms maintain those systems but can be distinguished only through systematics. Adequate long-term support — for systematics positions, research collections, activities that include the preparation of basic works such as monographs, and educational facilities — is required to underpin the systematics component of such a coordinated study.

Résumé

La systématique permet la compréhension de l'extraordinaire diversité des systèmes biologiques tout en rendant possible l'accessibilité et l'organisation de toutes nos connaissances sur les organismes. La détermination des relations entre les taxons naturels fournit les outils nécessaires à l'interprétation des processus naturels et à la prédiction des caractères biologiques. Les rôles écologiques sont rendus apparents et les données accumulées ne sont rendues accessibles que par la connaissance des noms spécifiques. La plus grande partie de la diversité des organismes est représentée par les arthropodes terrestres, mais nos connaissances à leur sujet sont très incomplètes. La moitié des espèces trouvées au Canada restent encore à décrire et les stades immatures de la plupart des autres ne sont mêmes pas connus.

La systématique sous-tend l'entomologie et sert de substrat aux études biologiques de plusieurs manières. Ces rôles de la systématique jettent de la lumière sur la diversité et l'évolution, sur la répartition et sur les régions d'importance biogéographique du pays, sur les adaptations, en particulier celles qui sont reliées aux interactions entre les espèces et à la métamorphose, enfin sur l'application pratique des informations taxinomiques. De plus, la valeur des travaux de base en systématique, des techniques modernes et des efforts conjugués au cours d'études à long terme est soulignée.

Une étude coordonnée de la diversité par des systématiciens en collaboration avec des écologistes et d'autres spécialistes est indispensable. Une telle approche est bien à propos, puisqu'il est maintenant reconnu que le monde dépend de systèmes biologiques durables qui sont de plus en plus menacés. Des organismes divers maintiennent ces systèmes et ils ne peuvent être reconnus qu'à la lumière de la systématique. Un appui adéquat à long terme — postes de systématiciens, collections de recherche, préparation de travaux de base tels des monographies, installations pédagogiques — est nécessaire à l'établissement de la composante taxinomique d'un tel effort de coordination. [Traduit par la rédaction]

Type
Research Article
Information
The Memoirs of the Entomological Society of Canada , Volume 125 , Supplement S165 , 1993 , pp. 257 - 272
Copyright
Copyright © Entomological Society of Canada 1993

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