187 research outputs found
Ecosystem Succession and Nutrient Retention: Vitousek and Reiners' Hypothesis
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116356/1/bes22014953234.pd
Dispersal limitation structures fungal community assembly in a longâterm glacial chronosequence
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/107360/1/emi12281.pd
Ectomycorrhizal fungi and the enzymatic liberation of nitrogen from soil organic matter: why evolutionary history matters
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/139921/1/nph14598.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/139921/2/nph14598_am.pd
Soil microbial communities are shaped by plantâdriven changes in resource availability during secondary succession
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116975/1/ecy201596123374.pd
Initial colonization, community assembly and ecosystem function: fungal colonist traits and litter biochemistry mediate decay rate
Priority effects are an important ecological force shaping biotic communities and ecosystem processes, in which the establishment of early colonists alters the colonization success of laterâarriving organisms via competitive exclusion and habitat modification. However, we do not understand which biotic and abiotic conditions lead to strong priority effects and lasting historical contingencies. Using saprotrophic fungi in a model leaf decomposition system, we investigated whether compositional and functional consequences of initial colonization were dependent on initial colonizer traits, resource availability or a combination thereof. To test these ideas, we factorially manipulated leaf litter biochemistry and initial fungal colonist identity, quantifying subsequent community composition, using neutral genetic markers, and community functional characteristics, including enzyme potential and leaf decay rates. During the first 3Â months, initial colonist respiration rate and physiological capacity to degrade plant detritus were significant determinants of fungal community composition and leaf decay, indicating that rapid growth and lignolytic potential of early colonists contributed to altered trajectories of community assembly. Further, initial colonization on oak leaves generated increasingly divergent trajectories of fungal community composition and enzyme potential, indicating stronger initial colonizer effects on energyâpoor substrates. Together, these observations provide evidence that initial colonization effects, and subsequent consequences on litter decay, are dependent upon substrate biochemistry and physiological traits within a regional species pool. Because microbial decay of plant detritus is important to global C storage, our results demonstrate that understanding the mechanisms by which initial conditions alter priority effects during community assembly may be key to understanding the drivers of ecosystemâlevel processes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/113681/1/mec13361.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/113681/2/mec13361_am.pd
Chronic nitrogen deposition alters the structure and function of detrital food webs in a northern hardwood ecosystem
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116377/1/eap20132361311.pd
Dispersal limitation and the assembly of soil Actinobacteria communities in a longâterm chronosequence
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90536/1/ECE3_210_sm_suppmat.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/90536/2/ece3.210.pd
Atmospheric Co2 And O3 Alter The Flow Of 15n In Developing Forest Ecosystems
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116984/1/ecy200788102630.pd
Phosphorus Efficiency Of Bornean Rain Forest Productivity: Evidence Against The Unimodal Efficiency Hypothesis
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/117012/1/ecy20058661548.pd
Elk, sagebrush, and saprotrophs: indirect topâdown control on microbial community composition and function
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116352/1/ecy20159692383.pd
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