Talk:Gryllus bimaculatus

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This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Mbastani.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 22:48, 16 January 2022 (UTC)

Reference link


Two yellowish spots at base of wings identify this cricket, native to Africa, Asia and Europe Pendragon39 22:29, 16 August 2007 (UTC)

Talk: References
Bretman, A., Rodriguez-Munoz, R., Walling, C., & Tregenza, T. 2011. Guarding Males Protect Females from Predation in a Wild Insect. Current Biology, 21: 1716-1719. http://www.sciencedirect.com/science/article/pii/S0960982211009596 Emiliaromagna1 (talk) 03:21, 28 September 2015 (UTC)

Bateman, P. (2004). Mate preference for novel partners in the cricket Gryllus bimaculatus. Ecological Entomology, 43: 473-475.

Bretman, A., Rodriguez-Munoz, R., Walling, C., Slate, J., & Tregenza, T. (2011). Fine-scale population structure, inbreeding risk and avoidance in a wild insect population. Molecular Ecology, 20: 3045-3055.

Turnell, B., and Shaw, K. (2015). High opportunity for postcopulatory sexual selection under field conditions. Evolution, 69: 2094-2104.

Snook, R. (2005). Sperm in competition: not playing by the numbers. Trends in Ecology and Evolution, 20: 46-53. Emiliaromagna1 (talk) 04:50, 21 September 2015 (UTC)

Emiliaromagna1 (talk) 03:46, 25 September 2015 (UTC)

I am working on adding information on polyandry in Gryllus bimaculatus. Any feedback would greatly appreciated! Below are a list of my references.

Benefits of Multiple Mates in the Cricket Gryllus bimaculatus Authors: Tom Tregenza and Nina We http://www.jstor.org/stable/2411345?seq=1#page_scan_tab_contents

Mate preference for novel partners in the cricket Gryllus bimaculatus Authors: L.W. Simmons http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2311.1998.00156.x/full

Measuring polyandry in wild populations: a case study using promiscuous crickets Authors: Amanda Bretman and Tom Tregenza http://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2005.02556.x/full

POLYANDRY AND FITNESS OF OFFSPRING REARED UNDER VARYING NUTRITIONAL STRESS IN DECORATED CRICKETS Authors: Scott K. Sakaluk, Jennifer M. Schaus, Anne-Katrin Eggert, W. Andrew Snedden, and Pamela L. Brady http://onlinelibrary.wiley.com/doi/10.1111/j.0014-3820.2002.tb00126.x/abstract — Preceding unsigned comment added by Mbastani (talk • contribs) 18:16, 21 September 2015 (UTC)

Competition, fluctuating asymmetry and sperm transfer in male gryllid crickets (Gryllus bimaculatus and Gryllodes sigillatus) Authors: Samantha T. Mallard, C. Barnard http://link.springer.com/article/10.1007/s00265-002-0537-4

Are there any popsci or online resources you could use for your article?Evol&#38;Glass (talk) 19:41, 21 September 2015 (UTC)

Comments for improvement
I corrected some wording and grammatical errors and italicized the species name. For the polyandry section, you need to add why the rate of polyandry of males is unspecific but why it is relatively high. Also, more specific details are needed how females differentiate between novel and previous mates in the Novel Mate section. Someone put more information about polyandry, and there are some repetitive sections and sentences. Those need to be reorganized and recombined within appropriate sections. For the further recommendation, more information of fitness consequences should be stated to show the effects of polyandry. Jihyek13 (talk) 01:22, 26 October 2015 (UTC)

These issues are still present. I have removed some of the repetitive material in the Breeding section and also trimmed out general material that is not specific to this species. Limebores (talk) 21:20, 11 December 2021 (UTC)

Polyandry Peer Review Comments by Shannon Tai
I added the sentence, “Variation of polyandry occurs within populations of Gryllus bimaculatus between males and females” to specifically pinpoint the level of variation. I also set your sentence regarding increased genetic diversity under the additional heading “Increased Genetic Diversity” to better order the flow of your article and highlight a very important evolutionary benefit. Adding a reference to the study in Seville, Spain could help direct readers to the study and also add credibility to your statements. Someone put an additional section about polyandry. I would suggest to combine these sections and get rid of the repetitive sentences. Shannon.tai (talk)

Comments on Polygamy Section
•	In the polyandry subsection, I would combine the second and third sentences as they say the same thing.

•	Change “The more sperm that is deposited results in greater fertilization success because more eggs are able to hatch” to “this means that more sperm being deposited leads to higher fertilization success” more eggs hatching does not actually increase fertilization success, it is actually the other way around, higher fertilization success means more eggs hatching.

•	I feel as though the entire first paragraph of the polyandry subsection does not actually talk about polyandry, or even polygamy for that matter. It talks about characteristics of sperm, but this info could remain here if reworded to reference polygamy as changing these characteristics. However, I still think it they should not be under polyandry even if it was reworded.

•	While the info in the second paragraph in the polyandry subsection of polygamy is good, there is already a section on polyandry and therefore this info should be incorporated in there, not in the polygamy section.

•	In both the sperm competition and male-guarding behavior subsections, reference needs to be made to how polygamy affects these traits. Otherwise, they will not fit into the polygamy section.

•	In “Inbreeding is a major example of genetic incompatibility because more genetically related individuals tend to have offspring with lower fitness,” I feel as though you could remove genetically from in front of related.

•	Change “As a result, male crickets that are genetically similar to female mates tend to be less effective in producing offspring because they are not selected as mates as often as genetically dissimilar males” to “As a result, males that are genetically similar to females tend to be less effective in producing offspring because they are not selected as mates as often as genetically dissimilar males.

•	Changed “Male guarding behaviors may have also evolved to reduce the risk of females becoming prey” to “Male guarding behaviors also reduce the risk of females becoming prey.”

•	Removed as well from “This not only has the benefit of allowing that particular male’s sperm to become fertilized, but also allows the female to continue to survive and reproduce as well”

•	Changed “This can potentially lead to the female mating more with the guarding male and creating more of his offspring” to “This in turn can lead to increased mating between the female and guarding male.” Pubh101 (talk) 08:17, 26 October 2015 (UTC) Thank you so much for your comments. In regards to your comment about fertilization success, I think we are both saying the same thing. The amount of eggs that hatch is how fertilization success is measured. In regards to your comment about the first paragraph of the polyandry section, describes patterns of variation that exist in polyandry for this species of crickets. In regards to your comment about sperm-competition and male guarding behavior, I described in the sentence above these sections that these are two mechanisms that allow polyandry to be advantageous for males. As a result, they are relevant because they explain what these mechanisms are. Emiliaromagna1 (talk) 05:00, 9 November 2015 (UTC)
 * Bulleted list item

Review 11.15.15
Minor note: much of general information regarding the lifestyle of the cricket has no citations. Although this information may be true it needs to be cited correctly by a source to be valid. Overall, the article is understandable. All of the information seems to be from review articles that have confirmed these observations of crickets. However, I rearranged a bit of the articles organization because I found that the large paragraph texts took away from the article. I tried to organize them by what each paragraph was talking about: Males, females etc. I also moved the novel mate hypothesis upwards to where it was more relevant. If the structure doesn’t work, I would recommend integrating that part of the article within the text to have it flow more. It was confusing to see that females enjoyed new males, but there was no reason for it. Additionally, I find this sentence a bit confusing “This rate for males is unspecific but relatively high. This is due to anisogamy and their drive to pass on alleles while minimizing competition.” Are you saying that there is fecundity or just that males have a higher tendency to spread their seed? Possibly add the information regarding how fecundity is related to how polyandry is a costly reproductive system. Also clarify why does the last male tend to have the most fertilization success. Cheungd (talk)

Wiki Edit
Mbastani,

When reading the Polygamy section of the article, I felt that a lot of facts were given to me, but weren’t really putting the big picture together. As the other editor stated, many general statements to the lifestyle of the crickets are not cited, which could be an issue. I also read that the last editor came in and sectioned off the material you added into gender categories, which I also think could be advantageous for this part of the article. Some ideas that I think should be further explained will be quoted and explained below.

The hyperlink for polygyny states “ this is a mating system in which one male lives and mates with multiple females, but each female only mates with a single male.” In the paragraph, you state the opposite, where female crickets mate with more than one male, yet males only mate with one female. I think that this would be very confusing to viewers on the topic.

You state that “Both females and males continuously seek mates whom they can spread their seed.” I think citing and rephrasing this idea would be better. Possibly by stating the sexual selection process and how this phenomenon is carried out by this species. Also as the other editor explained, I’m not quite sure what you mean by “this rate for males is unspecific but relatively high.” I would also have a citation of such correlation if you want to keep it in the article.

I think adding the costs of polyandry in the first paragraph would give additional insight as to how much the benefits are advantageous in this population. Also, additional information under the female heading would be beneficial as to the cost and benefits of having numerous copulations with males.

In male section, explain why “the last male that mates with a female tends to have the highest fertilization success.”

Lastly, in the male guarding section, comment if there is any competition with other males that are currently guarding. Do other male crickets try to fight the other male to gain access to the female? What is the success rate of mating success for males that guard the female? I think the answers to these questions may hone in on the big picture of polygamy and why it is beneficial to this species. Namaste314 (talk) 15:37, 16 November 2015 (UTC)

Comment(s) moved from top of page
Thank you to Mbastani for all of your edits! I further edited this article by: Emiliaromagna1 (talk) 22:54, 6 December 2015 (UTC)
 * I deleted the sub-section about females under polyandry because polyandry itself describes a mating process that only females can perform. As a result, I also moved around the information that talked about male mating to the polygamy section as a whole so that it was not put under polyandry because males can not exhibit polyandry.
 * I moved the sub-section "Novel Mate Hypothesis" to the bottom to make the article flow better, since the last sentence of the polyandry section sets up the sub-sections of “Sperm Competition” and “Male Guarding Behavior”.
 * I also moved "Males" sub-section to under polygamy and changed the section title to “Polygamy in Males” to demonstrate that this section describes polygamy in males and not polyandry.
 * I moved the sentences, “The rate at which males seek mates is unspecific but relatively high. This is due to anisogamy and their drive to pass on alleles while minimizing competition,” to the “Polygamy in Males” sub-section.

Thanks to user Emiliaromagna1 for their extensive editing and reorganization of the article. This allowed for a more cohesive and informative presentation of the information.

I further contributed to the article with the following:

- added a sentence on males not exhibiting polygamous behavior of polygyny

- changed "polyandrous behavior" to "polygamous" seeing that polyandry refers specifically to female mating patterns. This allows, by definition, for male mating patterns to be incorporated into the idea.

- removed the third to last sentence in second paragraph of polyandry due to its presentation of repetitive information

- cited a sentence in sperm competition subheading

Once again, thanks to the wiki community and fellow editors for their contributions on this article. Mbastani (talk) 04:35, 16 November 2015 (UTC)

For the polyandry section (and the sub-sections): Emiliaromagna1 (talk) 03:01, 13 November 2015 (UTC)
 * I reworded information and moved sentences around in the first three paragraphs to make this section more cohesive and less repetitive.
 * In the first paragraph of the polyandry section, define what rate you are referring to and explain why it is unspecific.
 * In the sperm competition section, I am not exactly sure what you mean by an increase in sperm expenditure. Does this mean that males will mate more often when they sense competition?
 * I also moved sentences around and reworded concepts to make this section more clear.
 * In the novel mate section, it might be helpful to define sensory-differentiation and explain self-referent chemosensory signaling.
 * I again reworded this section to make it more clear.

For the Polygamy section: I added citations at the ends of each sentence, instead of at the end of the paragraph. I linked polyandry to the Wikipedia page for it. I also linked polygamy to the Wikipedia page for it. I deleted the sentence, “Males do not show a difference in behavior when mating with a new female or an old mate.” I changed the citations to be in the correct format, so that they are not referencing SLU libraries anymore. I clarified the sentence about polyandry being costly by explaining the costs of polyandry for females. I clarified that genetic variation is an effect of polyandry and not a driver. I clarified that sperm competition and male guarding behavior are mechanisms that allow males to increase their fitness and not ways in which the costs of polyandry are reduced for females. I clarified the section on sperm competition by describing how interbreeding negatively impacts offspring and how it relates to sperm competition. Emiliaromagna1 (talk) 04:38, 9 November 2015 (UTC)
 * Bulleted list item

I made a few edits to the page, namely a couple grammatical changes and removed a small part of a sentence. In the polyandry section, the author wrote that females select for males that have sperm that more successfully fertilize females eggs. This cannot be because females have no way of knowing if a males sperm is successful or not until after mating with them. While these traits are still selected for because those males who have more successful sperm will reproduce more, this selection is not acted on by the females. SLUlax414 (talk)  —Preceding undated comment added 14:25, 26 October 2015 (UTC) Thank you for your comment. I am not really sure what you are referring to in regards to females selecting for males that have sperm that more successfully fertilize female eggs. Would you mind providing a citation of where you see this. Thank you! Emiliaromagna1 (talk) 05:09, 9 November 2015 (UTC)

The comments for improvement were of extraordinary help. Those given by my peers and professor have been addressed in the list following. All edits contributed to the quality of the article.

- deletion of repetitive sentence in polyandry subheading

- added and cited specification of females exhibiting mate preference

- added sentence about odor cues as a system for novel partner differentiation

- deleted subheading of genetic diversity: did not directly contribute to article

- added citation to second to last sentence in novel mate subheading

- edited last sentence in novel mate subheading to be more concise

- added citation to last sentence in polyandry

- added sentence on fitness advantage of unspecified mate selection in males

- edited out "male polyandry" and subtitled with phrase relating to "spread of seed"

- edited first sentence of novel mate subheading

- deleted first paragraph of sperm competition subheading

- deleted direct mention of Spanish study

Please feel free to make your contribution to this article and the additions I have made.Mbastani (talk) 21:17, 8 November 2015 (UTC)