Top 7 Biorxiv Papers Today in Ecology


2.002 Mikeys
#1. An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities
Casey M. Godwin, Feng-Hsun Chang, Bradley Cardinale
While most ecological theories have historically invoked niche differences as the primary mechanism allowing species coexistence, we now know that species coexistence in competitive communities actually depends on the balance of two opposing forces: niche differences (ND) that determine how species limit their own growth rate versus that of their competitor, and relative fitness differences (RFD) that establish competitive hierarchies among species. Several different empirical methods have been proposed for measuring ND and RFD in order to make predictions about coexistence of species, yet it remains unclear which method(s) are appropriate for a given empirical study and whether or not those methods actually yield the same information. Here we summarize and compare five different empirical methods, with the aim of providing a practical guide for empiricists who want to predict coexistence among species. These include two phenomenological methods that estimate ND and RFD based on observing competitive interactions among species;...
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jdtonkin: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
efronhofer: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
DiogoProvete: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
gutmicrobe: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
MarkKLWong: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
mauriciovancine: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
paulomateusms: RT @biorxiv_ecology: An Empiricist's Guide to Modern Coexistence Theory for Competitive Communities https://t.co/fKAZ3x4j1F #biorxiv_ecolo…
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Authors: 3
Total Words: 18144
Unqiue Words: 3838

1.998 Mikeys
#2. Century long fertilization reduces stochasticity controlling grassland microbial community succession
Yuting Liang, Daliang Ning, Zhenmei Lu, Na Zhang, Lauren Hale, Liyou Wu, Ian M Clark, Steve P McGrath, Jonathan Storkey, Penny R Hirsch, Bo Sun, Jizhong Zhou
Determining the drivers underlying ecological succession is a fundamental goal of ecological research and essential for predicting ecosystem functioning in response to human-induced environmental changes. Although various studies have examined the impacts of nitrogen (N) addition on plant and microbial community diversity, structure and activities, it remains unknown how long-term anthropogenic fertilization affects the ecological succession of microbial functional guilds and its underlying community assembly mechanisms. Here, using archived soils, we examined more than a century succession in soil microbial functional communities (from 1870 to 2008) from the Park Grass Experiment at Rothamsted Experimental Station, the longest running ecological experiment in the world. Long-term fertilization was found to significantly alter soil functional community structure and led to increasingly convergent succession of soil microbial communities. Meta-analysis indicated that microbial temporal turnover (w) was highly time scale-dependent,...
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biorxivpreprint: Century long fertilization reduces stochasticity controlling grassland microbial community succession https://t.co/yJAoW9anaH #bioRxiv
biorxiv_ecology: Century long fertilization reduces stochasticity controlling grassland microbial community succession https://t.co/woHVEEcxbe #biorxiv_ecology
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Authors: 12
Total Words: 0
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1.998 Mikeys
#3. Changes in the microbial community of Lubomirskia baicalensis affected by Brown Rot Disease
Colin Rorex, Armen Nalian, Sergej Belikov, Belkova Natalia, Lubov Chernogor, Igor Khanaev, Alexandra Martynova-Van Kley
Sponge diseases occur globally and the resulting reduction of sponge populations has negative effects on other organisms within the ecosystems due to loss of nutrient enrichment and loss of bioremediation. In Lake Baikal, the predominate sponge species Lubomirskia baicalensis is currently being infected with an unidentified pathogen resulting in a sharp decline in population. The current hypothesis is that the recent increase in methane concentration in the lake has caused dysbiosis within the bacterial community of L. baicalensis resulting in the disease outbreak. In this study we investigated the changes in the bacterial community between healthy and sick sponges using 16S bacterial profiling targeting veritable regions 3-5. Here we present data that the bacterial communities of the healthy sponge samples were significantly different from sick samples and several poorly classified organisms were identified by Indicator Species Analysis as significant. Organisms identified from the sick samples classified within taxonomic units...
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biorxivpreprint: Changes in the microbial community of Lubomirskia baicalensis affected by Brown Rot Disease https://t.co/F5SUo84ar5 #bioRxiv
biorxiv_ecology: Changes in the microbial community of Lubomirskia baicalensis affected by Brown Rot Disease https://t.co/jJbwtTNs8S #biorxiv_ecology
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Authors: 7
Total Words: 3970
Unqiue Words: 1429

1.998 Mikeys
#4. Fungal communities living within leaves of native Hawaiian dicots are structured by landscape-scale variables as well as by host plants
John L. Darcy, Gerald M. Cobian, Sean O. I. Swift, Geoffrey L. Zahn, Brian A. Perry, Anthony A. Amend
AIM: A phylogenetically diverse array of fungi live within healthy leaf tissue of dicotyledonous plants. Many studies have examined these endophytes within a single plant species and/or at small spatial scales, but landscape-scale variables that determine their community composition are not well understood, either across geographic space, across climatic conditions, or in the context of host plant phylogeny. Here, we evaluate the contributions of these variables to endophyte community composition using our survey of foliar endophytic fungi in native Hawaiian dicots sampled across the Hawaiian archipelago. LOCATION: Hawaiʻi. METHODS: The Hawaiian archipelago offers a uniquely tractable system to study biogeography of foliar endophytic fungi, because the islands harbor a wide array of climatic conditions, and native plant species are often found across wide elevational and climactic ranges. We used Illumina technology to sequence fungal ITS1 amplicons in order to characterize foliar endophyte communities in the leaves of 896 plants...
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Sample Sizes : [119, 89, 147]
Authors: 6
Total Words: 10341
Unqiue Words: 3132

1.998 Mikeys
#5. Community structure ecosystem function relationships in the Congo Basin methane cycle depend on the physiological scale of function
Kyle Matthew Meyer, Anya M. Hopple, Ann M Klein, Andrew Morris H Morris, Scott Bridgham, Brendan J. M. Bohannan
Belowground ecosystem processes can be highly variable and difficult to predict using microbial community data. Here we argue that this stems from at least three issues: 1) complex covariance structure of samples (with environmental conditions or spatial proximity) can make distinguishing biotic drivers a challenge, 2) communities can control ecosystem processes through multiple mechanisms, making the identification of these controls a challenge and 3) ecosystem function assessments can be broad in physiological scale, encapsulating multiple processes with unique microbially mediated controls. We suggest that these problems can be overcome by addressing environmental variability and sample covariance structure, separating microbial community measurements into distinct attributes that represent putative controls, and resolving functions to finer physiological scales. We test these assertions using methane (CH4)-cycling processes in soil samples collected along a wetland-to-upland habitat gradient in the Congo Basin. We perform our...
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biorxivpreprint: Community structure ecosystem function relationships in the Congo Basin methane cycle depend on the physiological scale of function https://t.co/6T7bFiozSY #bioRxiv
biorxiv_ecology: Community structure ecosystem function relationships in the Congo Basin methane cycle depend on the physiological scale of function https://t.co/glD9WPb496 #biorxiv_ecology
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Authors: 6
Total Words: 12166
Unqiue Words: 4247

1.997 Mikeys
#6. Spatiotemporal drivers of crop pests and pathogens abundance at the landscape scale
Thomas Delaune, Remy Ballot, Céline Gouwie, Fabienne Maupas, Christophe Sausse, Irène Félix, François Brun, Corentin Mario Barbu
The agricultural landscape has been recognized as a relevant scale for the control of bioagressors (pest and pathogen) epidemics. In this study, we assess the consistency of the impacts of semi-natural areas and host crop fields in the landscape on bioagressor abundance in cultivated fields. Our approach relied on the analysis of systematic French epidemiosurveillance data spanning 9 years of observations over two third of the French territory. 30 majors bioagressors of arable crops (wheat, barley, maize, potato, oilseed rape and sugar beet) were jointly studied with landscape composition as described by official CAP data and woody vegetation maps. Beyond the simple correlation between landscape composition and bioagressors abundance, we controlled for the presence of the host crop the former years in the plot and for bioagressors former prevalence. Our findings highlighted that landscape simplification around a same crop does not in general favor epidemic outbreaks during the current growing season, but rather that its harmful...
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biorxivpreprint: Spatiotemporal drivers of crop pests and pathogens abundance at the landscape scale https://t.co/ycELP1DAs4 #bioRxiv
biorxiv_ecology: Spatiotemporal drivers of crop pests and pathogens abundance at the landscape scale https://t.co/C9Bcvho5pI #biorxiv_ecology
AlainPannetier: RT @biorxivpreprint: Spatiotemporal drivers of crop pests and pathogens abundance at the landscape scale https://t.co/ycELP1DAs4 #bioRxiv
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Authors: 8
Total Words: 9389
Unqiue Words: 2843

1.997 Mikeys
#7. Modeling Avian Full Annual Cycle Distribution and Population Trends with Citizen Science Data
Daniel Fink, Tom Auer, Alison Johnston, Viviana Ruiz-Gutierrez, Wesley M. Hochachka, Steve Kelling
Information on species' distributions and abundances, and how these change over time are central to the study of the ecology and conservation of animal populations. This information is challenging to obtain at relevant scales across range-wide extents for two main reasons. First, local and regional processes that affect populations vary throughout the year and across species' ranges, requiring fine-scale, year-round information across broad - sometimes hemispheric - spatial extents. Second, while citizen science projects can collect data at these scales, using these data requires appropriate analysis to address known sources of bias. Here we present an analytical framework to address these challenges and generate year-round, range-wide distributional information using citizen science data. To illustrate this approach, we apply the framework to Wood Thrush (Hylocichla mustelina), a long-distance Neotropical migrant and species of conservation concern, using data from the citizen science project eBird. We estimate occurrence and...
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Authors: 6
Total Words: 0
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