Insects, in distinction to more highly organised creatures, have generally a definite limitation to their duration of life. The time which elapses between the egg and the fresh production of eggs is termed a generation. These may be single or annual, multiple, biennial or plurennial.
A plurennial generation denotes that the insect takes more than one year for its full development, for example, two years in the case of longicorn beetles and Sirex, and three or four years for the cockchafer.
The 1967 Federal Constitution lays down the following main rules concerning the Union’s budget: a) capital expenditures will follow plurennial investment budgets. No project, program, work or expenditure — the implementation of which is foreseen for more than one fiscal year — may have an allocation in the annual budget, be started or contracted, without previous inclusion in the plurennial investment budget, with a statement on the amount of the allocations that will be included in each yearly budget during the execution of said project, program, work or expenditure; […]
Molluscs in the wild state may be divided into annual species, which include many small freshwater species and nudibranchs, plurennial species with a short reproductive life, and plurennial species with a long reproductive life, some of the latter probably having an open-ended or indeterminate life-span.
1977 September 18–24, 10th World Energy Conference, İstanbul, Sept. 18–24, 1977, volumes 4: Unconventional Energy Resources — Studies of Development, World Energy Council, page 8:
[…] development of reservoirs and basins permitting the control of water flows has made it possible to regulate hydroelectric production on an hourly, daily, seasonal and even plurennial basis and to prevent energy wastes.
1986 November, Sigfrid Ingrisch, “The plurennial life cycles of the European Tettigoniidae (Insecta: Orthoptera). 1. The effect of temperature on embryonic development and hatching”, in Oecologia, volume 70, number 4, Berlin: Springer-Verlag, →DOI, pages 606–616
1986 November, Sigfrid Ingrisch, “The plurennial life cycles of the European Tettigoniidae (Insecta: Orthoptera). 2. The effect of photoperiod on the induction of an initial diapause”, in Oecologia, volume 70, number 4, Berlin: Springer-Verlag, →DOI, pages 617–623
1986 November, Sigfrid Ingrisch, “The plurennial life cycles of the European Tettigoniidae (Insecta: Orthoptera). 3. The effect of drought and the variable duration of the initial diapause”, in Oecologia, volume 70, number 4, Berlin: Springer-Verlag, →DOI, pages 624–630
1988, Enrico Lauciani, A Comparison of Class A Pan Evaporation Measurements with Penman and Tombesi–Lauciani Indirect Estimation Methods (Annali dell’Istituto Sperimentale per la Nutrizione delle Piante: Supplemento), Istituto Sperimentale per la Nutrizione delle Piante di Torino, →ISSN, page 21:
Burkina Faso (Upper Volta). From “Tableaux climatologiques. Période 1971-1980, Direction du service météorologique”, were taken the average plurennial values for 1971–1980 relative to five stations. Since the climatic wind factor is missing from these tables, these data, for the same stations, were taken from the polyannual average data in “Agroclimatological data. Africa I”, F.A.O., 1984.
2001, Helga Willer, editor, Training Model for Sustainable Tourism on Organic Farms: Mit deutscher Zusammenfassung (SÖL-Sonderausgabe; 83), Stiftung Ökologie und Landbau, →ISBN, page 121:
With respect to these orientations, the organic-oriented agriculture is no doubt the most suitable instrument to reduce the negative environmental impact, actively contributing to the conservation of the landscape, preventing the decline of the agricultural sector, also contributing to the prevention of natural risks through the adoption of natural practices, countryside and landscape conservation, the preservation of woods or abandoned territory and the plurennial production withdrawal.
2019 December 18th, Roberta Piscia, Sara Bovio, Marina Manca, Andrea Lami, Piero Guilizzoni, “Evaluation of the Egg Bank of Two Small Himalayan Lakes”, in Marina Manca, Roberta Piscia, Barbara Leoni, Roberta Bettinetti, editors, Zooplankton Diversity and Pelagic Food Webs: Investigating Present and Past with Different Techniques (Water; special issue), Basel: MDPI, published 2020 February 11th, →DOI, →ISBN, →ISSN, page 48:
Information on remote high mountains environments is usually scant, limited in time and space, and even a list of taxa from contemporary samples is generally incomplete as plurennial surveys can be rarely accomplished.
2020, Milena Dragićević Šešić, “Contemporary arts in adaptable quality management: Questioning entrepreneurialism as a panacea in Europe”, in William J. Byrnes, Aleksandar Brkić, editors, The Routledge Companion to Arts Management, Abingdon/New York: Routledge, →ISBN, chapter 4, no pagination:
That motivated ECF not only to search for different methods of evaluation and assessment and their representation (plurennial and annual reports, conferences, books) – but also for new types of activities and programmes.
2020 June 3rd, Pierre Labadie, Soline Alligant, Thierry Berthe, Hélène Budzinski, Aurélie Bigot-Clivot, France Collard, Rachid Dris, Johnny Gasperi, Elodie Guigon, Fabienne Petit, Vincent Rocher, Bruno Tassin, Romain Tramoy, Robin Treilles, “Contaminants of Emerging Concern in the Seine River Basin: Overview of Recent Research”, in Nicolas Flipo, Pierre Labadie, Laurence Lestel, editors, The Seine River Basin (The Handbook of Environmental Chemistry; 90), Cham: Springer, published 2021, →DOI, →ISBN, →ISSN, page 375:
Using passive sampling, in combination with both target and nontarget methods, would allow for the acquisition of time-averaged, low-frequency data to build up long-term data sets (plurennial or even decadal scale).
2021, Miguel Vatter, “Care of the Self and the Invention of Legitimate Government: Foucault and Strauss on Platonic Political Philosophy”, in Jeffrey A. Bernstein, Jade Larissa Schiff, editors, Leo Strauss and Contemporary Thought: Reading Strauss Outside the Lines (SUNY series in the Thought and Legacy of Leo Strauss), Albany: State University of New York Press, →ISBN, →LCCN, chapter 6, endnote 4:
Foucault’s plurennial lectures on Platonic political philosophy are not discussed in any of these works.
