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Zou HX, Rudolf VHW. Bridging theory and experiments of priority effects. Trends Ecol Evol 2023; 38:1203-1216. [PMID: 37633727 DOI: 10.1016/j.tree.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/28/2023]
Abstract
Priority effects play a key role in structuring natural communities, but considerable confusion remains about how they affect different ecological systems. Synthesizing previous studies, we show that this confusion arises because the mechanisms driving priority and the temporal scale at which they operate differ among studies, leading to divergent outcomes in species interactions and biodiversity patterns. We suggest grouping priority effects into two functional categories based on their mechanisms: frequency-dependent priority effects that arise from positive frequency dependence, and trait-dependent priority effects that arise from time-dependent changes in interacting traits. Through easy quantification of these categories from experiments, we can construct community models representing diverse biological mechanisms and interactions with priority effects, therefore better predicting their consequences across ecosystems.
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Affiliation(s)
- Heng-Xing Zou
- Program in Ecology and Evolutionary Biology, Department of BioSciences, Rice University, 6100 Main St, Houston, TX 77005, USA.
| | - Volker H W Rudolf
- Program in Ecology and Evolutionary Biology, Department of BioSciences, Rice University, 6100 Main St, Houston, TX 77005, USA
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2
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Lumpi T, Guo X, Lindström ES. Nutrient availability and grazing influence the strength of priority effects during freshwater bacterial community coalescence. Environ Microbiol 2023; 25:2289-2302. [PMID: 37381117 DOI: 10.1111/1462-2920.16450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/31/2023] [Indexed: 06/30/2023]
Abstract
When bacterial communities mix, immigration history can fundamentally affect the community composition as a result of priority effects. Priority effects arise when an early immigrant exhausts resources and/or alters habitat conditions, thereby influencing the establishment success of the late arriver. The strength of priority effects is context-dependent and expected to be stronger if environmental conditions favour the growth of the first arriver. In this study, we conducted a two-factorial experiment testing the importance of nutrient availability and grazing on the strength of priority effects in complex aquatic bacterial communities. We did so by mixing two dissimilar communities, simultaneously, and with a 38 h time-delay. Priority effects were measured as the invasion resistance of the first community to the invading second community. We found stronger priority effects in treatments with high nutrient availability and absence of grazing, but in general, the arrival timing was less important than the selection by nutrients and grazing. At the population level, the results were complex, but priority effects may have been driven by bacteria belonging to for example, the genera Rhodoferax and Herbaspirillum. Our study highlights the importance of arrival timing in complex bacterial communities, especially if environmental conditions favour rapid community growth.
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Affiliation(s)
- Theresa Lumpi
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
| | - Xin Guo
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Eva S Lindström
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
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3
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Substrate affinities of wood decay fungi are foremost structured by wood properties not climate. FUNGAL ECOL 2023. [DOI: 10.1016/j.funeco.2023.101231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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4
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Santamaria B, Verbeken A, Haelewaters D. Mycophagy: A Global Review of Interactions between Invertebrates and Fungi. J Fungi (Basel) 2023; 9:jof9020163. [PMID: 36836278 PMCID: PMC9968043 DOI: 10.3390/jof9020163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
Fungi are diverse organisms that occupy important niches in natural settings and agricultural settings, acting as decomposers, mutualists, and parasites and pathogens. Interactions between fungi and other organisms, specifically invertebrates, are understudied. Their numbers are also severely underestimated. Invertebrates exist in many of the same spaces as fungi and are known to engage in fungal feeding or mycophagy. This review aims to provide a comprehensive, global view of mycophagy in invertebrates to bring attention to areas that need more research, by prospecting the existing literature. Separate searches on the Web of Science were performed using the terms "mycophagy" and "fungivore". Invertebrate species and corresponding fungal species were extracted from the articles retrieved, whether the research was field- or laboratory-based, and the location of the observation if field-based. Articles were excluded if they did not list at least a genus identification for both the fungi and invertebrates. The search yielded 209 papers covering seven fungal phyla and 19 invertebrate orders. Ascomycota and Basidiomycota are the most represented fungal phyla whereas Coleoptera and Diptera make up most of the invertebrate observations. Most field-based observations originated from North America and Europe. Research on invertebrate mycophagy is lacking in some important fungal phyla, invertebrate orders, and geographic regions.
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Affiliation(s)
- Brianna Santamaria
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
- Correspondence: (B.S.); (D.H.)
| | - Annemieke Verbeken
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Danny Haelewaters
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Centro de Investigaciones Micológicas (CIMi), Universidad Autónoma de Chiriquí, David 0427, Panama
- Correspondence: (B.S.); (D.H.)
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5
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Bergmann GE, Leveau JHJ. A metacommunity ecology approach to understanding microbial community assembly in developing plant seeds. Front Microbiol 2022; 13:877519. [PMID: 35935241 PMCID: PMC9355165 DOI: 10.3389/fmicb.2022.877519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Microorganisms have the potential to affect plant seed germination and seedling fitness, ultimately impacting plant health and community dynamics. Because seed-associated microbiota are highly variable across individual plants, plant species, and environments, it is challenging to identify the dominant processes that underlie the assembly, composition, and influence of these communities. We propose here that metacommunity ecology provides a conceptually useful framework for studying the microbiota of developing seeds, by the application of metacommunity principles of filtering, species interactions, and dispersal at multiple scales. Many studies in seed microbial ecology already describe individual assembly processes in a pattern-based manner, such as correlating seed microbiome composition with genotype or tracking diversity metrics across treatments in dispersal limitation experiments. But we see a lot of opportunities to examine understudied aspects of seed microbiology, including trait-based research on mechanisms of filtering and dispersal at the micro-scale, the use of pollination exclusion experiments in macro-scale seed studies, and an in-depth evaluation of how these processes interact via priority effect experiments and joint species distribution modeling.
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Affiliation(s)
| | - Johan H. J. Leveau
- Department of Plant Pathology, University of California-Davis, Davis, CA, United States
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6
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Lunde LF, Jacobsen R, Kauserud H, Boddy L, Nybakken L, Sverdrup-Thygeson A, Birkemoe T. Legacies of invertebrate exclusion and tree secondary metabolites control fungal communities in dead wood. Mol Ecol 2022; 31:3241-3253. [PMID: 35363919 PMCID: PMC9322270 DOI: 10.1111/mec.16448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/28/2022] [Indexed: 11/29/2022]
Abstract
During decomposition of organic matter, microbial communities may follow different successional trajectories depending on the initial environment and colonizers. The timing and order of the species arrival (assembly history) can lead to divergent communities through priority effects. We explored how assembly history and resource quality affected fungal communities and decay rate of decomposing wood, 1.5 and 4.5 years after tree felling. Additionally, we investigated the effect of invertebrate exclusion during the first two summers. We measured initial resource quality of bark and wood of aspen (Populus tremula) logs and surveyed the fungal communities by DNA metabarcoding at different times during succession. We found that gradients in fungal community composition were related to resource quality and discuss how this may reflect different fungal life history strategies. As with previous studies, the initial amount of bark tannins was negatively correlated with wood decomposition rate over 4.5 years. The initial fungal community explained variation in community composition after 1.5, but not 4.5 years, of succession. Although the assembly history of initial colonizers may cause alternate trajectories in successional communities, our results indicate that the communities may converge with the arrival of secondary colonizers. We also identified a strong legacy of invertebrate exclusion on fungal communities, even after 4.5 years of succession, thereby adding crucial knowledge on the importance of invertebrates in affecting fungal community development. By measuring and manipulating aspects of assembly history and resource quality that have rarely been studied, we expand our understanding of the complexity of fungal community dynamics.
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Affiliation(s)
- Lisa Fagerli Lunde
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, 1432, Ås, Norway
| | - Rannveig Jacobsen
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, 1432, Ås, Norway.,Norwegian Institute for Nature Research (NINA), 0855, Oslo, Norway
| | - Håvard Kauserud
- University of Oslo, Section for Genetics and Evolutionary Biology (EVOGENE), 0316, Oslo, Norway
| | - Lynne Boddy
- Cardiff University, School of Biosciences, Cardiff, UK
| | - Line Nybakken
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, 1432, Ås, Norway
| | - Anne Sverdrup-Thygeson
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, 1432, Ås, Norway
| | - Tone Birkemoe
- Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, 1432, Ås, Norway
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7
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Mei Pelinson R, Leibold MA, Schiesari L. Community variability in pond metacommunities: interactive effects of predators and isolation on stochastic community assembly. OIKOS 2022. [DOI: 10.1111/oik.08798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Rodolfo Mei Pelinson
- Programa de Pós‐Graduação em Ecologia, Inst. de Biociências, Univ. de São Paulo São Paulo SP Brazil
| | | | - Luis Schiesari
- Escola de Artes, Ciências e Humanidades, Univ. de São Paulo São Paulo SP Brazil
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8
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Yang S, Poorter L, Kuramae EE, Sass-Klaassen U, Leite MFA, Costa OYA, Kowalchuk GA, Cornelissen JHC, van Hal J, Goudzwaard L, Hefting MM, van Logtestijn RSP, Sterck FJ. Stem traits, compartments, and tree species affect fungal communities on decaying wood. Environ Microbiol 2022; 24:3625-3639. [PMID: 35229433 PMCID: PMC9544286 DOI: 10.1111/1462-2920.15953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 01/12/2022] [Accepted: 02/23/2022] [Indexed: 12/01/2022]
Abstract
Dead wood quantity and quality is important for forest biodiversity, by determining wood‐inhabiting fungal assemblages. We therefore evaluated how fungal communities were regulated by stem traits and compartments (i.e. bark, outer‐ and inner wood) of 14 common temperate tree species. Fresh logs were incubated in a common garden experiment in a forest site in the Netherlands. After 1 and 4 years of decay, the fungal composition of different compartments was assessed using Internal Transcribed Spacer amplicon sequencing. We found that fungal alpha diversity differed significantly across tree species and stem compartments, with bark showing significantly higher fungal diversity than wood. Gymnosperms and Angiosperms hold different fungal communities, and distinct fungi were found between inner wood and other compartments. Stem traits showed significant afterlife effects on fungal communities; traits associated with accessibility (e.g. conduit diameter), stem chemistry (e.g. C, N, lignin) and physical defence (e.g. density) were important factors shaping fungal community structure in decaying stems. Overall, stem traits vary substantially across stem compartments and tree species, thus regulating fungal communities and the long‐term carbon dynamics of dead trees.
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Affiliation(s)
- Shanshan Yang
- Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, 6700, AA, Wageningen, The Netherlands
| | - Lourens Poorter
- Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, 6700, AA, Wageningen, The Netherlands
| | - Eiko E Kuramae
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708, PB, Wageningen, the Netherlands.,Ecology and Biodiversity Group, Department of Biology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Ute Sass-Klaassen
- Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, 6700, AA, Wageningen, The Netherlands
| | - Marcio F A Leite
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708, PB, Wageningen, the Netherlands.,Ecology and Biodiversity Group, Department of Biology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Ohana Y A Costa
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708, PB, Wageningen, the Netherlands
| | - George A Kowalchuk
- Ecology and Biodiversity Group, Department of Biology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Johannes H C Cornelissen
- Systems Ecology, Department of Ecological Science, VU University (Vrije Universiteit) Amsterdam, De Boelelaan 1085, 1081, HV, Amsterdam, The Netherlands
| | - Jurgen van Hal
- Systems Ecology, Department of Ecological Science, VU University (Vrije Universiteit) Amsterdam, De Boelelaan 1085, 1081, HV, Amsterdam, The Netherlands
| | - Leo Goudzwaard
- Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, 6700, AA, Wageningen, The Netherlands
| | - Mariet M Hefting
- Ecology and Biodiversity Group, Department of Biology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Richard S P van Logtestijn
- Systems Ecology, Department of Ecological Science, VU University (Vrije Universiteit) Amsterdam, De Boelelaan 1085, 1081, HV, Amsterdam, The Netherlands
| | - Frank J Sterck
- Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, 6700, AA, Wageningen, The Netherlands
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9
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Cook K, Sharma J, Taylor AD, Herriott IC, Taylor DL. Epiphytic fungal communities vary by substrate type and at sub-meter spatial scales. Mol Ecol 2022; 31:1879-1891. [PMID: 35060231 DOI: 10.1111/mec.16358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/17/2021] [Accepted: 01/07/2022] [Indexed: 11/30/2022]
Abstract
Fungal species have numerous important environmental functions. Where these functions occur will depend on how fungi are spatially distributed, but spatial structures of fungal communities are largely unknown, especially in understudied hyperdiverse tropical tree canopy systems. We explore fungal communities in a Costa Rican tropical rainforest canopy, with a focus on local-scale spatial structure and substrate specificity of fungi. Samples of ~1 cm3 were collected from 135 points along 5 adjacent tree branches, with inter-sample distances from 1 to 800 cm, and dissected into four substrates: outer host tree bark, inner bark, dead bryophytes, and living bryophytes. We sequenced the ITS2 region to characterize total fungal communities. Fungal community composition and diversity varied among substrate types, even when multiple substrates were in direct contact. Fungi were most diverse in living bryophytes, with 39% of all OTUs found exclusively in this substrate, and the least diverse in inner bark. Fungal communities had significant positive spatial autocorrelation and distance decay of similarity only at distances less than one meter. Similarity among samples declines by half in less than ten cm, and even at these short distances, similarities are low with few OTUs shared among samples. These results indicate that community turnover is high and occurs at very small spatial scales, with any two locations sharing very few fungi in common. High heterogeneity of fungal communities in space and among substrates may have implications for the distributions, population dynamics, and diversity of other tree canopy organisms, including epiphytic plants.
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Affiliation(s)
- Kel Cook
- Department of Biology, University of New Mexico, Castetter Hall 1480, MSC03-2020, 219 Yale Blvd NE, Albuquerque, NM, 87131-0001, USA
| | - Jyotsna Sharma
- Department of Plant and Soil Science, Texas Tech University, Bayer Plant Science Building, Room 219, 2911 15th Street, Mail Stop 2122, Lubbock, TX, 79409-2122, USA
| | - Andrew D Taylor
- Department of Biology, University of Hawai'i at Manoa, 2538 McCarthy Mall, Edmondson Hall 216, Honolulu, HI, 96822, USA
| | - Ian Charold Herriott
- Institute of Arctic Biology, University of Alaska, 311 Irving I Building, Fairbanks, AK, 99775, USA
| | - D Lee Taylor
- Department of Biology, University of New Mexico, Castetter Hall 1480, MSC03-2020, 219 Yale Blvd NE, Albuquerque, NM, 87131-0001, USA
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10
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Buchkowski RW, Schmitz OJ. Weak interactions between strong interactors in an old‐field ecosystem: Control of nitrogen cycling by coupled herbivores and detritivores. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Sun R, Xu Y, Wu Y, Tang J, Esquivel-Elizondo S, Kerr PG, Staddon PL, Liu J. Functional sustainability of nutrient accumulation by periphytic biofilm under temperature fluctuations. ENVIRONMENTAL TECHNOLOGY 2021; 42:1145-1154. [PMID: 31437081 DOI: 10.1080/09593330.2019.1659422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/15/2019] [Indexed: 06/10/2023]
Abstract
Temperature can fluctuate widely between different seasons, and this may greatly impact many biological processes. However, little is known about its influence on the functioning of benthic microbial communities. Here we investigated the nutrient accumulation capability of periphytic biofilm under temperature fluctuations (17-35°C). Periphytic biofilm maintained the same nutrient accumulation capacity after experiencing the 'warming-hot-cooling' temperature fluctuation under both lab and outdoor conditions as those without temperature disturbance. In response to temperature increase, both community composition and species richness changed greatly and the increase in biodiversity was identified as being the underlying mechanism boosting the sustainable function in nutrient accumulation, indicating zero net effects of community changes. These findings provide insights into the underlying mechanisms of how benthic microbial communities adapt to temperature fluctuations to maintain nutrient accumulation capacity and elucidate that periphytic biofilm plays important roles in influencing nutrient cycling in aquatic ecosystems under temperature changes such as seasonal fluctuations.
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Affiliation(s)
- Rui Sun
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People's Republic of China
- College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Ying Xu
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People's Republic of China
- College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yonghong Wu
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - Jun Tang
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - Sofia Esquivel-Elizondo
- Department of Microbiome Science, Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - Philip G Kerr
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, Australia
| | - Philip L Staddon
- School of Environment, Earth and Ecosystem Sciences, Faculty of Science, Technology, Engineering and Mathematics, The Open University, Milton Keynes, UK
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, Suzhou, People's Republic of China
| | - Junzhuo Liu
- Zigui Ecological Station for Three Gorges Dam Project, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People's Republic of China
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12
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Ramsay C, Rohr JR. The application of community ecology theory to co-infections in wildlife hosts. Ecology 2021; 102:e03253. [PMID: 33222193 DOI: 10.1002/ecy.3253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/27/2020] [Accepted: 09/18/2020] [Indexed: 11/11/2022]
Abstract
Priority effect theory, a foundational concept from community ecology, states that the order and timing of species arrival during species assembly can affect species composition. Although this theory has been applied to co-infecting parasite species, it has almost always been with a single time lag between co-infecting parasites. Thus, how the timing of parasite species arrival affects co-infections and disease remains poorly understood. To address this gap in the literature, we exposed postmetamorphic Cuban tree frogs (Osteopilus septentrionalis) to Ranavirus, the fungus Batrachochytrium dendrobatidis (Bd), a nematode Aplectana hamatospicula, or pairs of these parasites either simultaneously or sequentially at a range of time lags and quantified load of the secondary parasite and host growth, survival, and parasite tolerance. Prior exposure to Bd or A. hamatospicula significantly increased viral loads relative to hosts singly infected with Ranavirus, whereas A. hamatospicula loads in hosts were higher when coexposed to Bd than when coexposed to Ranavirus. There was a significant positive relationship between time since Ranavirus infection and Bd load, and prior exposure to A. hamatospicula decreased Bd loads compared to simultaneous co-infection with these parasites. Infections with Bd and Ranavirus either singly or in co-infections decreased host growth and survival. This research reveals that time lags between co-infections can affect parasite loads, in line with priority effects theory. As co-infections in the field are unlikely to be simultaneous, an understanding of when co-infections are impacted by time lags between parasite exposures may play a major role in controlling problematic co-infections.
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Affiliation(s)
- Chloe Ramsay
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, 46556, USA
| | - Jason R Rohr
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, 46556, USA
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13
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Brooks AJ, Lancaster J, Downes BJ, Wolfenden B. Just add water: rapid assembly of new communities in previously dry riverbeds, and limited long-distance effects on existing communities. Oecologia 2020; 194:709-722. [DOI: 10.1007/s00442-020-04799-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 11/03/2020] [Indexed: 01/23/2023]
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14
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Host Genotype and Colonist Arrival Order Jointly Govern Plant Microbiome Composition and Function. Curr Biol 2020; 30:3260-3266.e5. [PMID: 32679100 DOI: 10.1016/j.cub.2020.06.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 01/08/2023]
Abstract
The composition of host-associated microbiomes can have important consequences for host health and fitness [1-3]. Yet we still lack understanding of many fundamental processes that determine microbiome composition [4, 5]. There is mounting evidence that historical contingency during microbiome assembly may overshadow more deterministic processes, such as the selective filters imposed by host traits [6-8]. More specifically, species arrival order has been frequently shown to affect microbiome composition [9-12], a phenomenon known as priority effects [13-15]. However, it is less clear whether priority effects during microbiome assembly are consequential for the host [16] or whether intraspecific variation in host traits can alter the trajectory of microbiome assembly under priority effects. In a greenhouse inoculation experiment using the black cottonwood (Populus trichocarpa) foliar microbiome, we manipulated host genotype and the colonization order of common foliar fungi. We quantified microbiome assembly outcomes using fungal marker gene sequencing and measured susceptibility of the colonized host to a leaf rust pathogen, Melampsora × columbiana. We found that the effect of species arrival order on microbiome composition, and subsequent disease susceptibility, depended on the host genotype. Additionally, we found that microbiome assembly history can affect host disease susceptibility independent of microbiome composition at the time of pathogen exposure, suggesting that the interactive effects of species arrival order and host genotype can decouple community composition and function. Overall, these results highlight the importance of a key process underlying stochasticity in microbiome assembly while also revealing which hosts are most likely to experience these effects.
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15
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Christofides SR, Hiscox J, Savoury M, Boddy L, Weightman AJ. Fungal control of early-stage bacterial community development in decomposing wood. FUNGAL ECOL 2019. [DOI: 10.1016/j.funeco.2019.100868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Norberg A, Halme P, Kotiaho JS, Toivanen T, Ovaskainen O. Experimentally induced community assembly of polypores reveals the importance of both environmental filtering and assembly history. FUNGAL ECOL 2019. [DOI: 10.1016/j.funeco.2019.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Gora EM, Lucas JM. Dispersal and nutrient limitations of decomposition above the forest floor: Evidence from experimental manipulations of epiphytes and macronutrients. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13440] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Evan M. Gora
- Department of Biology University of Louisville Louisville KY USA
| | - Jane M. Lucas
- Department of Soil and Water Systems University of Idaho Moscow ID USA
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19
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Microbial Composition and Wood Decomposition Rates Vary with Microclimate From the Ground to the Canopy in a Tropical Forest. Ecosystems 2019. [DOI: 10.1007/s10021-019-00359-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Leonhardt S, Hoppe B, Stengel E, Noll L, Moll J, Bässler C, Dahl A, Buscot F, Hofrichter M, Kellner H. Molecular fungal community and its decomposition activity in sapwood and heartwood of 13 temperate European tree species. PLoS One 2019; 14:e0212120. [PMID: 30763365 PMCID: PMC6375594 DOI: 10.1371/journal.pone.0212120] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 01/28/2019] [Indexed: 12/27/2022] Open
Abstract
Deadwood is an important structural component in forest ecosystems and plays a significant role in global carbon and nutrient cycling. Relatively little is known about the formation and decomposition of CWD by microbial communities in situ and about the factors controlling the associated processes. In this study, we intensively analyzed the molecular fungal community composition and species richness in relation to extracellular enzyme activity and differences in decomposing sapwood and heartwood of 13 temperate tree species (four coniferous and nine deciduous species, log diameter 30–40 cm and 4 m long) in an artificial experiment involving placing the logs on the forest soil for six years. We observed strong differences in the molecular fungal community composition and richness among the 13 tree species, and specifically between deciduous and coniferous wood, but unexpectedly no difference was found between sapwood and heartwood. Fungal species richness correlated positively with wood extractives and negatively with fungal biomass. A distinct fungal community secreting lignocellulolytic key enzymes seemed to dominate the decomposition of the logs in this specific phase. In particular, the relative sequence abundance of basidiomycetous species of the Meruliaceae (e.g. Bjerkandera adusta) correlated with ligninolytic manganese peroxidase activity. Moreover, this study reveals abundant white-rot causing Basidiomycota and soft-rot causing Ascomycota during this phase of wood decomposition.
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Affiliation(s)
- Sabrina Leonhardt
- Technische Universität Dresden, International Institute Zittau, Department of Bio- and Environmental Sciences, Zittau, Germany
- * E-mail:
| | - Björn Hoppe
- UFZ-Helmholtz Centre for Environmental Research, Department of Soil Ecology, Halle (Saale), Germany
- Julius Kuehn-Institute, Institute for National and International Plant Health, Braunschweig, Germany
| | - Elisa Stengel
- University of Würzburg, Field Station Fabrikschleichach, Rauhenebrach, Germany
| | - Lisa Noll
- University of Vienna, Department of Microbiology and Ecosystem Science, Vienna, Austria
| | - Julia Moll
- UFZ-Helmholtz Centre for Environmental Research, Department of Soil Ecology, Halle (Saale), Germany
| | | | - Andreas Dahl
- Technische Universität Dresden, Center for Molecular and Cellular Bioengineering, CMCB Technology Platform, Deep Sequencing Group, Dresden, Germany
| | - Francois Buscot
- UFZ-Helmholtz Centre for Environmental Research, Department of Soil Ecology, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Leipzig, Germany
| | - Martin Hofrichter
- Technische Universität Dresden, International Institute Zittau, Department of Bio- and Environmental Sciences, Zittau, Germany
| | - Harald Kellner
- Technische Universität Dresden, International Institute Zittau, Department of Bio- and Environmental Sciences, Zittau, Germany
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21
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Acanakwo EF, Sheil D, Moe SR. Wood decomposition is more rapid on than off termite mounds in an African savanna. Ecosphere 2019. [DOI: 10.1002/ecs2.2554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Erik Francis Acanakwo
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences P.O. Box 5003 1432 Ås Norway
| | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences P.O. Box 5003 1432 Ås Norway
| | - Stein R. Moe
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences P.O. Box 5003 1432 Ås Norway
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22
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Jacobsen RM, Sverdrup‐Thygeson A, Kauserud H, Mundra S, Birkemoe T. Exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in an experimental field study. Funct Ecol 2018. [DOI: 10.1111/1365-2435.13196] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rannveig M. Jacobsen
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences Ås Norway
- The Norwegian Institute for Nature Research Oslo Norway
| | - Anne Sverdrup‐Thygeson
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences Ås Norway
| | - Håvard Kauserud
- Section for Genetics and Evolutionary Biology (EVOGENE) University of Oslo Oslo Norway
| | - Sunil Mundra
- Section for Genetics and Evolutionary Biology (EVOGENE) University of Oslo Oslo Norway
| | - Tone Birkemoe
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences Ås Norway
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Xiao H, Dee LE, Chadès I, Peyrard N, Sabbadin R, Stringer M, McDonald-Madden E. Win-wins for biodiversity and ecosystem service conservation depend on the trophic levels of the species providing services. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13192] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Hui Xiao
- Centre for Biodiversity and Conservation Science; School of Earth and Environmental Sciences; University of Queensland; St Lucia Qld Australia
- CSIRO; EcoSciences Precinct; Dutton Park Qld Australia
| | - Laura E. Dee
- Department of Fisheries, Wildlife, and Conservation Biology; University of Minnesota; St. Paul MN USA
- Institute on the Environment; University of Minnesota; St. Paul MN USA
| | - Iadine Chadès
- CSIRO; EcoSciences Precinct; Dutton Park Qld Australia
- ARC Centre for Excellence for Environmental Decisions; University of Queensland; St Lucia Qld Australia
| | | | | | - Martin Stringer
- Centre for Biodiversity and Conservation Science; School of Earth and Environmental Sciences; University of Queensland; St Lucia Qld Australia
| | - Eve McDonald-Madden
- Centre for Biodiversity and Conservation Science; School of Earth and Environmental Sciences; University of Queensland; St Lucia Qld Australia
- ARC Centre for Excellence for Environmental Decisions; University of Queensland; St Lucia Qld Australia
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Song C, Altermatt F, Pearse I, Saavedra S. Structural changes within trophic levels are constrained by within-family assembly rules at lower trophic levels. Ecol Lett 2018; 21:1221-1228. [DOI: 10.1111/ele.13091] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/10/2018] [Accepted: 04/23/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Chuliang Song
- Department of Civil and Environmental Engineering; MIT; 77 Massachusetts Av. Cambridge MA 02139 USA
| | - Florian Altermatt
- Department of Aquatic Ecology; EAWAG; Überlandstrasse 133 CH-8600 Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental Studies; University of Zurich; Winterthurerstrasse 190 CH-8057 Zurich Switzerland
| | - Ian Pearse
- U.S. Geological Survey; Collins Science Center; 2150 Centre Ave #C Ft Collins CO 80526 USA
| | - Serguei Saavedra
- Department of Civil and Environmental Engineering; MIT; 77 Massachusetts Av. Cambridge MA 02139 USA
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25
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Stam JM, Dicke M, Poelman EH. Order of herbivore arrival on wild cabbage populations influences subsequent arthropod community development. OIKOS 2018. [DOI: 10.1111/oik.05265] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jeltje M. Stam
- Laboratory of Entomology; Wageningen Univ.; PO Box 16, NL-6700 AA Wageningen the Netherlands
| | - Marcel Dicke
- Laboratory of Entomology; Wageningen Univ.; PO Box 16, NL-6700 AA Wageningen the Netherlands
| | - Erik H. Poelman
- Laboratory of Entomology; Wageningen Univ.; PO Box 16, NL-6700 AA Wageningen the Netherlands
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Maynard DS, Covey KR, Crowther TW, Sokol NW, Morrison EW, Frey SD, van Diepen LTA, Bradford MA. Species associations overwhelm abiotic conditions to dictate the structure and function of wood‐decay fungal communities. Ecology 2018; 99:801-811. [DOI: 10.1002/ecy.2165] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 12/02/2017] [Accepted: 01/08/2018] [Indexed: 01/27/2023]
Affiliation(s)
- Daniel S. Maynard
- Department of Ecology and Evolution University of Chicago 1101 E 57th Street Chicago Illinois 60637 USA
- School of Forestry and Environmental Studies Yale University 370 Prospect Street New Haven Connecticut 06511 USA
| | - Kristofer R. Covey
- School of Forestry and Environmental Studies Yale University 370 Prospect Street New Haven Connecticut 06511 USA
| | - Thomas W. Crowther
- Institute of Integrative Biology ETH Zurich Univeritätstrasse 16 8006 Zurich Switzerland
| | - Noah W. Sokol
- School of Forestry and Environmental Studies Yale University 370 Prospect Street New Haven Connecticut 06511 USA
| | - Eric W. Morrison
- Department of Natural Resources and the Environment University of New Hampshire Durham New Hampshire 03824 USA
| | - Serita D. Frey
- Department of Natural Resources and the Environment University of New Hampshire Durham New Hampshire 03824 USA
| | - Linda T. A. van Diepen
- Department of Ecosystem Science and Management University of Wyoming 1000 East University Avenue Laramie Wyoming 82071 USA
| | - Mark A. Bradford
- School of Forestry and Environmental Studies Yale University 370 Prospect Street New Haven Connecticut 06511 USA
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