Housekeeping Mutualisms: Do More Symbionts Facilitate Host Performance?
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{"title"=>"Housekeeping mutualisms: Do more symbionts facilitate host performance?", "type"=>"journal", "authors"=>[{"first_name"=>"Adrian C.", "last_name"=>"Stier", "scopus_author_id"=>"25643623200"}, {"first_name"=>"Michael A.", "last_name"=>"Gil", "scopus_author_id"=>"55189539000"}, {"first_name"=>"C. Seabird", "last_name"=>"McKeon", "scopus_author_id"=>"15832120100"}, {"first_name"=>"Sarah", "last_name"=>"Lemer", "scopus_author_id"=>"57195966564"}, {"first_name"=>"Matthieu", "last_name"=>"Leray", "scopus_author_id"=>"26024326900"}, {"first_name"=>"Suzanne C.", "last_name"=>"Mills", "scopus_author_id"=>"7202974088"}, {"first_name"=>"Craig W.", "last_name"=>"Osenberg", "scopus_author_id"=>"6603791253"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"22523536", "doi"=>"10.1371/journal.pone.0032079", "pui"=>"364638196", "issn"=>"19326203", "sgr"=>"84859859350", "scopus"=>"2-s2.0-84859859350"}, "id"=>"f87e24ed-fe6d-3ff2-99cb-e6885ff1f8f8", "abstract"=>"Mutualisms often involve one host supporting multiple symbionts, whose identity, density and intraguild interactions can influence the nature of the mutualism and performance of the host. However, the implications of multiple co-occurring symbionts on services to a host have rarely been quantified. In this study, we quantified effects of decapod symbionts on removal of sediment from their coral host. Our field survey showed that all common symbionts typically occur as pairs and never at greater abundances. Two species, the crab Trapezia serenei and the shrimp Alpheus lottini, were most common and co-occurred more often than expected by chance. We conducted a mesocosm experiment to test for effects of decapod identity and density on sediment removal. Alone, corals removed 10% of sediment, but removal increased to 30% and 48% with the presence of two and four symbionts, respectively. Per-capita effects of symbionts were independent of density and identity. Our results suggest that symbiont density is restricted by intraspecific competition. Thus, increased sediment removal from a coral host can only be achieved by increasing the number of species of symbionts on that coral, even though these species are functionally equivalent. Symbiont diversity plays a key role, not through added functionality but by overcoming density limitation likely imposed by intraspecific mating systems.", "link"=>"http://www.mendeley.com/research/housekeeping-mutualisms-more-symbionts-facilitate-host-performance", "reader_count"=>64, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Professor > Associate Professor"=>3, "Researcher"=>21, "Student > Doctoral Student"=>3, "Student > Ph. D. Student"=>20, "Student > Postgraduate"=>1, "Other"=>2, "Student > Master"=>4, "Student > Bachelor"=>5, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Professor > Associate Professor"=>3, "Researcher"=>21, "Student > Doctoral Student"=>3, "Student > Ph. D. Student"=>20, "Student > Postgraduate"=>1, "Other"=>2, "Student > Master"=>4, "Student > Bachelor"=>5, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Environmental Science"=>11, "Biochemistry, Genetics and Molecular Biology"=>2, "Agricultural and Biological Sciences"=>47, "Business, Management and Accounting"=>2}, "reader_count_by_subdiscipline"=>{"Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>47}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>2}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>11}}, "reader_count_by_country"=>{"Canada"=>1, "Netherlands"=>2, "United States"=>7, "South Africa"=>1, "Mexico"=>2, "Peru"=>1}, "group_count"=>3}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/651756"], "description"=>"<p>Pairwise co-occurrence of five focal symbiont species are shown within Trapezidae (i.e. Crabs – blue), within Alpheidae (i.e. Shrimps – pink), between the two families (Crabs and Shrimps – green). Black circles and solid line represent the observed data. Colored rectangles and dashed lines represent the 95% quantiles from 10,000 randomly simulated communities. Observed values are significantly different from the randomly simulated communities when the black circle falls outside the 95% quantiless. Species tend to avoid to avoid confamilials (with 2 of 4 comparisons demonstrating avoidance), while the crab, <i>T. serenei</i> is positively associated with both shrimp species. At the intraspecific level, pairs are more common and singlets and triplets are more rare than expected by chance. See Appendices B and E for raw data.</p>", "links"=>[], "tags"=>["co-occurrence", "intraspecific", "focal", "symbiont", "133", "surveyed"], "article_id"=>322232, "categories"=>["Inorganic Chemistry", "Ecology"], "users"=>["Adrian C. Stier", "Michael A. Gil", "C. Seabird McKeon", "Sarah Lemer", "Matthieu Leray", "Suzanne C. Mills", "Craig W. Osenberg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032079.g001", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interspecific_co_occurrence_a_and_intraspecific_density_b_of_five_focal_symbiont_species_from_133_surveyed_corals_/322232", "title"=>"Interspecific co-occurrence (a) and intraspecific density (b) of five focal symbiont species from 133 surveyed corals.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-04-16 00:37:12"}
  • {"files"=>["https://ndownloader.figshare.com/files/651822"], "description"=>"<p>Figure shows backtransformed mean ± 95% CI, n  =  13. Grey vertical bars are give the 2.5% and 97.5 quantiles for the distribution of effects of symbionts assuming independence and calculated from equations 1, 2, and 3. The white bar in center of each grey bar is the mean from these simulations. Observed values fall within the null distributions for both the additive and substitutive designs suggesting that the effects of symbionts are independent (i.e. the data provide no evidence for antagonism or synergy between symbiont species).</p>", "links"=>[], "tags"=>["symbionts", "sediment", "removed"], "article_id"=>322304, "categories"=>["Inorganic Chemistry", "Ecology"], "users"=>["Adrian C. Stier", "Michael A. Gil", "C. Seabird McKeon", "Sarah Lemer", "Matthieu Leray", "Suzanne C. Mills", "Craig W. Osenberg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032079.g002", "stats"=>{"downloads"=>0, "page_views"=>1, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Independent_effects_of_symbionts_Alpheus_A_and_Trapezia_T_on_the_proportion_of_sediment_removed_in_the_experiment_/322304", "title"=>"Independent effects of symbionts (<i>Alpheus</i>: A and <i>Trapezia</i>: T) on the proportion of sediment removed in the experiment.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-04-16 00:38:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/335422", "https://ndownloader.figshare.com/files/335470", "https://ndownloader.figshare.com/files/335501", "https://ndownloader.figshare.com/files/335534", "https://ndownloader.figshare.com/files/335574", "https://ndownloader.figshare.com/files/335640"], "description"=>"<div><p>Mutualisms often involve one host supporting multiple symbionts, whose identity, density and intraguild interactions can influence the nature of the mutualism and performance of the host. However, the implications of multiple co-occurring symbionts on services to a host have rarely been quantified. In this study, we quantified effects of decapod symbionts on removal of sediment from their coral host. Our field survey showed that all common symbionts typically occur as pairs and never at greater abundances. Two species, the crab <em>Trapezia serenei</em> and the shrimp <em>Alpheus lottini</em>, were most common and co-occurred more often than expected by chance. We conducted a mesocosm experiment to test for effects of decapod identity and density on sediment removal. Alone, corals removed 10% of sediment, but removal increased to 30% and 48% with the presence of two and four symbionts, respectively. Per-capita effects of symbionts were independent of density and identity. Our results suggest that symbiont density is restricted by intraspecific competition. Thus, increased sediment removal from a coral host can only be achieved by increasing the number of species of symbionts on that coral, even though these species are functionally equivalent. Symbiont diversity plays a key role, not through added functionality but by overcoming density limitation likely imposed by intraspecific mating systems.</p> </div>", "links"=>[], "tags"=>["housekeeping", "symbionts"], "article_id"=>126268, "categories"=>["Inorganic Chemistry", "Ecology"], "users"=>["Adrian C. Stier", "Michael A. Gil", "C. Seabird McKeon", "Sarah Lemer", "Matthieu Leray", "Suzanne C. Mills", "Craig W. Osenberg"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0032079.s001", "https://dx.doi.org/10.1371/journal.pone.0032079.s002", "https://dx.doi.org/10.1371/journal.pone.0032079.s003", "https://dx.doi.org/10.1371/journal.pone.0032079.s004", "https://dx.doi.org/10.1371/journal.pone.0032079.s005", "https://dx.doi.org/10.1371/journal.pone.0032079.s006"], "stats"=>{"downloads"=>11, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Housekeeping_Mutualisms_Do_More_Symbionts_Facilitate_Host_Performance_/126268", "title"=>"Housekeeping Mutualisms: Do More Symbionts Facilitate Host Performance?", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2012-04-16 01:44:28"}

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Relative Metric

{"start_date"=>"2012-01-01T00:00:00Z", "end_date"=>"2012-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Biology and life sciences", "average_usage"=>[322, 550, 671, 773, 864, 955, 1048, 1135, 1223, 1308, 1387, 1465, 1534, 1602, 1673, 1744, 1813, 1885, 1955, 2026, 2093, 2160, 2228, 2290, 2349]}, {"subject_area"=>"/Biology and life sciences/Ecology", "average_usage"=>[350, 552, 657, 754, 839, 932, 1023, 1103, 1197, 1274, 1359, 1436, 1499, 1564, 1640, 1726, 1794, 1865, 1933, 2021, 2101, 2181, 2239, 2324, 2376]}, {"subject_area"=>"/Biology and life sciences/Marine biology", "average_usage"=>[393, 576, 681, 795, 891, 951, 1043, 1122, 1188, 1269, 1349, 1425, 1502, 1554, 1599, 1644, 1710, 1791, 1866, 1938, 1996, 2070, 2136, 2218, 2286]}, {"subject_area"=>"/Earth sciences", "average_usage"=>[368, 548, 649, 749, 833, 915, 993, 1071, 1153, 1240, 1315, 1388, 1456, 1520, 1597, 1673, 1747, 1826, 1892, 1975, 2036, 2101, 2178, 2256, 2319]}, {"subject_area"=>"/Earth sciences/Marine and aquatic sciences", "average_usage"=>[356, 537, 639, 726, 807, 879, 949, 1022, 1106, 1179, 1245, 1302, 1376, 1439, 1502, 1575, 1648, 1720, 1800, 1848, 1914, 1988, 2050, 2123, 2179]}, {"subject_area"=>"/Ecology and environmental sciences/Ecology", "average_usage"=>[347, 547, 641, 742, 836, 927, 1016, 1099, 1184, 1267, 1348, 1418, 1484, 1555, 1631, 1705, 1788, 1843, 1917, 1985, 2052, 2115, 2190, 2258, 2333]}]}
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