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I replaced "the world's largest species of alder" by "the largest species of alder in North America and one of the largest in the world". The Alnus rubra site say the tallest A. rubra is officially 32 metres tall. The tallest measured Alnus glutinosa subsp. glutinosa in Finland is 32 metres tall (Väre, H. & Kiuru, H. 2006: Suomen puut ja pensaat (=Trees and shrubs of Finland). Metsäkustannus, Helsinki.), and in Central Europe the species grows even taller, but I haven't found information about the tallest measured specimens. In moist forests along the Caspian coast in northern Iran I have found giant specimens of A. glutinosa subsp. barbata which greatly exceed in size all the A. glutinosa subsp. glutinosa trees I have seen in Europe and also all the A. rubra trees I have seen in the Pacific Northwest of North America, but again: exact measurements are missing. I am not saying A. glutinosa is the largest alder species. But surely we have not information about world's alders enough to say A. rubra is the largest. However, it is safe to say A. rubra and A. glutinosa both are in the largest size class of the alders. Krasanen ( talk) 12:19, 5 July 2008 (UTC)
=="Poineer Species --> Pioneer Species" Spelling Change == -- Urahozer ( talk) 03:06, 17 March 2009 (UTC)
Some references for genetic diversity of the red alder (Alnus rubra). 1. Hughes, A., Inouye, B., Johnson, M., Underwood, N., & Vellend, M. (2008). Ecological consequences of genetic diversity. Ecology Letters, 609-623.
2. Crutsinger, G. (2006). Plant Genotypic Diversity Predicts Community Structure and Governs an Ecosystem Process. Science, 966-968.
3. Withrow-Robinson, B. A., & Johnson, R. (2006). Selecting native plant materials for restoration projects: ensuring local adaptation and maintaining genetic diversity. Corvallis, Or.: Extension Service, Oregon State University.
4. Xie, C. Y. (2008). Ten-year results from red alder (Alnus rubra Bong.) provenance-progeny testing and their implications for genetic improvement. New forests, 36(3), 273-284.
5. Another article: Ager, A. A., Heilman, P. E., & Stettler, R. F. (1993). Genetic variation in red alder (Alnus rubra) in relation to native climate and geography. Canadian Journal Of Forest Research, 23(9), 1930. — Preceding unsigned comment added by Fins42 ( talk • contribs) 13:40, 28 September 2015 (UTC)
Fins42 ( talk) 02:38, 21 September 2015 (UTC)
Are there any popsci or online resources you could use for your article? Evol&Glass ( talk) 19:24, 21 September 2015 (UTC)
Added a section on Genetic Diversity. Fins42 ( talk) 13:13, 21 October 2015 (UTC)
The paragraphs you added were well written. One suggestion would be to add more information specific to you plant species. I loved having the background knowledge needed to understand some things about your species but it was more general information than information specific to Alnus rubra. Another suggestion I have is that you could add specifically how endangered this species is. There is an official conservations list and it would be interesting to see that how threatened it is and if the need for conservation is urgent. The only edit I made was to a run on sentence that started out with, “Without a large amount of genetic diversity…” under the section Genetic Diversity. Lopezospina ( talk) 06:16, 26 October 2015 (UTC)
In the genetic diversity, The fourth paragraph was moved to be the first paragraph. I took out the first sentence of the first paragraph and any specifics relating to certain studies. I added more specifics about genetic variation among the red alders in paragraphs four and five. I tried to relate the general information on genetic diversity specifically to red alders in paragraphs 2,4, and 5. I reworded the sentence on inbreeding. I tried to clarifty the fifth paragraph. I reworded a couple sentences. Fins42 ( talk) 14:46, 9 November 2015 (UTC)
Peer Review - Here are the comments I have for your article: In the first paragraph, explain how/why genetic diversity helps a population adapt. What are the three traits that have sufficient genetic diversity that you mention in the fourth paragraph? The last paragraph would be more meaningful to the article if it included more specific information about the Red Alder’s interaction with the ecosystem. It is unclear if the information present is about the Red Alder or not.
Evolution43 (
talk) —Preceding
undated comment added
16:15, 15 November 2015 (UTC)
Great work editing/ adding your references. I also see that you corrected some punctuation, awesome. Basically keep up the good work, the page looks well organized and it really through. If you're looking to add more I would say to maybe look into how is says scientist use it as an indicator for ozone pollution. That sounds really interesting. Do they only use it in the environments it grows in or do they use it in other places and how? Lopezospina ( talk) 04:11, 16 November 2015 (UTC)
Hello! I enjoyed reading your contributions to this article regarding genetic diversity in Red Adlers. Of course genetic diversity is a crucial evolutionary biology topic, and the information that you provided gave great insight into why the Red Adler has litte genetic diversity and the resulting implications of this. The edits that I made were largely reducing redundancy and removing text that was too general and not specific to Red Adlers. For example, a large portion of the text was dedicated to explaining what genetic diversity is in general. I cut out and reworded many of these sentences because I felt that they were not relevant to Red Adlers, and may be more fitted to an article discussing the broader concept of genetic diversity. For example, your first paragraph had "Genetic diversity is the amount of genetic variation in a population.[8] When a habitat is subjected to change due to humans, genetic variation is important in a population so they are able to change with the environment.[9] In order to adapt to changes, whether induced by humans or natural, in the environment there needs to be genetic diversity [10]" which I tried making relevant to Red Adlers by replacing with "For a population to adapt to changes in the environment, genetic diversity must exist.[8] Endangered species also tend to have a smaller amount of individuals in the population.[9] There may be a positive correlation between population size and the genetic diversity in a population, suggesting that endangered species show lower genetic diversity.[10] Therefore, the endangered Red Adler has less genetic diversity than unthreatened species. [11]" Another specific example that I removed was your sentence regarding herbivore and predator populations, as I was not sure of its relevance. I also condensed wordy sentences wherever possible. I would suggest keeping the text as relevant to Red Adlers as possible rather than broader topics. Also, citing sources less frequently may help with clarity and make the article flow smoother. Great work! NeverStopEvolving ( talk)
Thank you for all the comments and edits they really make the article better! For this edit I just reworded a couple sentences. I tried to keep the text relevant and concise. Fins42 ( talk) 14:32, 10 December 2015 (UTC)
The comment(s) below were originally left at Talk:Alnus rubra/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
Article refers to US presence of this species only but linked map shows it runs the length of the BC coast. |
Last edited at 01:48, 1 January 2012 (UTC). Substituted at 19:44, 1 May 2016 (UTC)