Talk:Biological life cycle

message: I think the K and r selection section currently in sexual selection belongs here (ie life history), or in a closely related entry, life history theory?. --Pete Hurd
:No, K and r are population biology topis; this is cell biology (perhaps). Dysmorodrepanis (talk) 21:03, 10 April 2009 (UTC)
thread_title: K and r selection

message: Hydrozoa and "worms" and many others are diplonts as typical for animals, but they differ from the standard strategy in having an asexual cloining phase. This article needs expansion in that direction. 21:03, 10 April 2009 (UTC)
thread_title: Animals

message: The subject of this article of is of fundamental importance in biology, and as such it is (I presume) well understood by biologists. It gives a concise overview of the subject, but does so by using language foreign to the non-specialist. It is true that dificult terminology is hyperlinked, but this does little to improve readability. I think it would be good to unpack some of the jargon within the article. This would make it more comprehensible to non-specialiststs, who I would presume are the target audience of the article. Tapatio (talk) 07:45, 11 August 2009 (UTC)
thread_title:  Use of specialized language 

message: THERE NEEDS TO BE MORE INFORMATION ON THIS TOPIC. IT WOULD BE QUITE INTERESTING TO KNOW WHATS A BEAR LIFE CYCLES LIKE AND ADAPTATION TO CERTAIN ENVIRONMENTAL CHANGES.
life cycle of a bear  —Preceding unsigned comment added by 124.106.255.120 (talk) 01:52, 20 November 2009 (UTC)
thread_title:  life cycle of a bear 

message: According to Noctilucales#Characteristics - admittedly after I fixed a probable spelling mistake -  these (and speculatively other dinoflagellates) also
have gametic meiosis.  Is the list supposed to be exhaustive?  Should we add Noctoluticales to the list?
Cucamber (talk) 19:58, 7 January 2010 (UTC)
thread_title:  Dinoflagellates 

message: Just a note that this "life cycle" in this context only refers to passing of one generation to the next.  It does NOT refer to life cycle from original conception (the "first") to extinction (the "last"). --71.245.164.83 (talk) 02:27, 8 February 2011 (UTC)
replies: text: Good point. It has to with reproduction, not reincarnation. Polar Apposite (talk) 20:38, 31 October 2023 (UTC)
replies: text: Fh TTC 41.114.157.209 (talk) 23:51, 24 December 2023 (UTC)
thread_title:  Limits of definition of "biological life cycle" 

message: I see many grammatical errors in the first paragraph and some sentences are not even complete. English isn't my native language so I'm not too confident about correcting them myself.  — Preceding unsigned comment added by 122.170.112.39 (talk) 17:03, 3 March 2012 (UTC)
thread_title:  Grammatical errors in the first paragraph 

message: The Haplodiplontic life cycle section has this sentence, which appears to have been copy-pasted from the Diplontic life cycle section:
:"In the whole cycle, gametes are usually the only haploid cells, and mitosis usually occurs only in the diploid phase."
I'm not an expert on this, but this seems factually incorrect to me, since a Haplodiplontic life cycle would have a multicellular haploid phase, which would necessarily have to undergo mitosis.  Could someone more knowledgeable than me correct this if I'm right? Equaaldoors (talk) 22:52, 11 March 2012 (UTC)
thread_title:  Incorrect statement in Haplodiplontic life cycle section? 

message: I think that the article must be restructured, clarifying some concepts, according to Díaz-González, the French article, and the Dutch article. - Zorahia (talk) 15:21, 5 October 2013 (UTC)
replies: text: It's important also to keep WP:MTAU in mind: no matter what is discussed, it needs to be made understandable to people who don't know or don't care what haplophasic meiosis is. I'm an educated biologist and am familiar with zygotic and gametic meiosis, yet never heard the terms haplontic or diplontic in my life, thus their use as headers may further burden less-famililar readers. The life cycle is a very fundamental concept that needs a thorough yet comprehensible explanation. Rather than potentially overwhelm nonspecialist or non-collegiate readers, this article might better serve as an overview or introduction, with haplodiplonty etc. described in depth in their own article for those interested. Most basic information should be summarized first, leading to more complex discussion or soft redirects when it gets into the nitty gritty. Thus, largely unknown terms like sporocyst and redia should probably not be in the first paragraph of the lead.--Animalparty-- (talk) 03:55, 30 March 2014 (UTC)
replies: text: Agree. It is also important, I think, to keep this page on life cycles reasonably free of material duplicated from alternation of generations. Sminthopsis84 (talk) 15:06, 30 March 2014 (UTC)
thread_title:  Article restructuration 

message: * (1) about the concepts of generation, phase, individual and biont:
** generation, for geneticists (Simon, 2007): intervalle de temps séparant l'oeuf de l'oeuf c'est à dire l'ensemble des mitoses, et éventuellement des phases individualisées que sépare deux fécondations. [Interval between an egg and other egg, that is, the set of mitosis, and eventually the individualized phases that separates two fertilizations.]
** génération (Feldmann, 1978, cf. Simon, 2007):  une génération, chez les végétaux, est une étape du développement d'un organisme débutant par une cellule reproductrice (spore ou zygote) et aboutissant, après une activité végétative marquée, à la production d'autres cellules reproductrices différentes ou non de celle ayant produit la génération envisagée. [A generation in plants is a developmental stage of a organism starting by a reproductive (spore or zygote) cell and ending after a marked vegetative activity, with the production or other different (or not) reproductive cells from that which produced the contemplated generation.] 
*** Note: Almost identical to Díaz González et al.: Generación es una etapa del desarrollo de un ser vivo (organismo, órgano o conjunto de células), que comienza por una célula reproductora (espora o zigoto) y termina, después de una marcada actividad vegetativa, con la producción de otras células reproductoras (esporas o gametos) diferentes o no de las que han producido la etapa de desarrollo considerada  (talk) 13:53, 30 December 2015 (UTC)
thread_title: Concepts

message: Proposal based on Díaz González et al.: PAvdK (talk) 13:30, 30 December 2015 (UTC)
thread_title: Schemes

message: Some interesting papers and books that may enrich the article:
* Beukeboom, L. & Perrin, N. (2014). The Evolution of Sex Determination. Oxford University Press. Online resources. [Note: The book and the online material give information about the evolution, in many groups of eukaryotes, of sexual reproduction, sex decoupled from reproduction, gamete differentiation/sexes/anisogamy, mating types, types of life cycles/alternation of nuclear phases and sex-determination systems, and clarifies some terminology.]
* Cocucci, A. E., Hunziker, A. T. (1994). Los ciclos biológicos en el reino vegetal. Córdoba (Argentiga): Academia Nacional de Ciencias.
* Coelho, S., Peters A.F., Charrier, B., Roze, D., Destombe, C., Valero, M. and Cock, J.M . (2007) Complex life cycles of multicellular eukaryotes: new approaches based on the use of model organisms. Gene, 406, 152-170  
* Czihak, B. et al. (1981).  "Generations- und Fortpflanzungswechsel". In: Biologie, ein Lehrbuch. 3. Aufl., Springer-Verlag, Berlin, Heidelberg, New York. link. [4th ed., 1990, link.]
* Kjiin, H. Generationswechsel und Kernphasenwechsel. Naturwiss. V, 1917, p. 84 — 88.
* Linskens, H. F. (Hrsg.): Sexualität, Fortpflanzung, Generationswechsel. Handbuch der Pflanzenphysiologie Bd. 18. Berlin, Heidelberg, New York: Springer, 1967, .
* Melchior, H. (1964). Adolf Engler's Syllabus der Pflanzenfamilien (12th ed.). Vol. 1: Allgemeiner Teil; Bakterien bis Gymnospermen. (See chapter: Kernphasenwechsel, Biontenwechsel, Generationswechsel.)
* Oliverio AM, Katz LA. 2014. The dynamic nature of genomes across the tree of life. Genome Biol Evol. 6(3): 482–488.
* Parfrey LW, Lahr DJG, Katz LA. 2008. The dynamic nature of eukaryotic genomes. Mol Biol Evol. 25:787–794.
* Qiu, Y.-L., A. B. Taylor, H. A. McManus. 2012. Evolution of the life cycle in land plants. Journal of Systematics and Evolution 50: 171-194. [Note: I think that, in the legend of Figure 1, by the context, the correct would be haplophasic, instead of haplobiontic.]
Zorahia (talk) 15:21, 5 October 2013 (UTC)
thread_title:  Additional bibliography 

message: As almost an aside, wikipedia is surprisingly deficient, it seems, in a definition of "generation" that would be appropriate here. I've added something to Generation (disambiguation), but it is not in an ideal form. Sminthopsis84 (talk) 21:24, 6 October 2013 (UTC)
replies: text: It's important also to keep WP:MTAU in mind: no matter what is discussed, it needs to be made understandable to people who don't know or don't care what haplophasic meiosis is. I'm an educated biologist and am familiar with zygotic and gametic meiosis, yet never heard the terms haplontic or diplontic in my life, thus their use as headers may further burden less-famililar readers. The life cycle is a very fundamental concept that needs a thorough yet comprehensible explanation. Rather than potentially overwhelm nonspecialist or non-collegiate readers, this article might better serve as an overview or introduction, with haplodiplonty etc. described in depth in their own article for those interested. Most basic information should be summarized first, leading to more complex discussion or soft redirects when it gets into the nitty gritty. Thus, largely unknown terms like sporocyst and redia should probably not be in the first paragraph of the lead.--Animalparty-- (talk) 03:55, 30 March 2014 (UTC)
replies: text: Agree. It is also important, I think, to keep this page on life cycles reasonably free of material duplicated from alternation of generations. Sminthopsis84 (talk) 15:06, 30 March 2014 (UTC)
thread_title: Comments

message: Is anyone able to make a little stub page or a section in another article that defines Biont? I think that would be very helpful. (A wikipedia search at present gives the impression that the term is only used in science fiction.) Sminthopsis84 (talk) 14:05, 4 October 2014 (UTC)
thread_title:  Biont? 

message: Substituted at 09:42, 29 April 2016 (UTC)
thread_title: Assessment comment

message: The article Parasitic life cycle should probably be merged into this article. Eventually it may warrant a separate page, but at the moment, it's almost the exact same length as the various sections here. Otherwise the only mention of parasite lifecycles is in the caption of one of the lead images! T.Shafee(Evo&Evo)talk 13:11, 13 February 2019 (UTC)
thread_title:  Merger suggestion