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Climatic warming destabilizes forest ant communities

Journal Article · · Science Advances
 [1];  [2];  [3];  [2];  [4];  [5];  [6];  [7];  [8];  [5]
  1. Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Biology; DOE/OSTI
  2. North Carolina State Univ., Raleigh, NC (United States). Dept. of Applied Ecology
  3. Bowling Green State Univ., OH (United States). Dept. of Biological Sciences
  4. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Environmental Conservation; Harvard Univ., Petersham, MA (United States). Harvard Forest
  5. Univ. of Vermont, Burlington, VT (United States). Dept. of Biology
  6. North Carolina State Univ., Raleigh, NC (United States). Dept. of Applied Ecology; Univ. of Copenhagen (Denmark). Center for Macroecology, Evolution and Climate
  7. Harvard Univ., Petersham, MA (United States). Harvard Forest
  8. Univ. of Copenhagen (Denmark). Center for Macroecology, Evolution and Climate
How will ecological communities change in response to climate warming? Direct effects of temperature and indirect cascading effects of species interactions are already altering the structure of local communities, but the dynamics of community change are still poorly understood. We explore the cumulative effects of warming on the dynamics and turnover of forest ant communities that were warmed as part of a 5-year climate manipulation experiment at two sites in eastern North America. At the community level, warming consistently increased occupancy of nests and decreased extinction and nest abandonment. This consistency was largely driven by strong responses of a subset of thermophilic species at each site. As colonies of thermophilic species persisted in nests for longer periods of time under warmer temperatures, turnover was diminished, and species interactions were likely altered. We found that dynamical (Lyapunov) community stability decreased with warming both within and between sites. These results refute null expectations of simple temperature-driven increases in the activity and movement of thermophilic ectotherms. The reduction in stability under warming contrasts with the findings of previous studies that suggest resilience of species interactions to experimental and natural warming. In the face of warmer, no-analog climates, communities of the future may become increasingly fragile and unstable.
Research Organization:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
FG02-08ER64510
OSTI ID:
1536829
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 10 Vol. 2; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (11)

Draft Aphaenogaster genomes expand our view of ant genome size variation across climate gradients posted_content September 2018
Community-level regulation of temporal trends in biodiversity journal July 2017
Urban heat island conditions experienced by the Western black widow spider (Latrodectus hesperus): Extreme heat slows development but results in behavioral accommodations journal September 2019
Effect of tropical forest disturbance on the competitive interactions within a diverse ant community journal March 2018
Impact of global warming on insects: are tropical species more vulnerable than temperate species? posted_content August 2019
Beyond thermal limits: comprehensive metrics of performance identify key axes of thermal adaptation in ants journal January 2017
Plastic collective endothermy in a complex animal society (army ant bivouacs: Eciton burchellii parvispinum ) journal November 2018
Lower thermal tolerance in nocturnal than in diurnal ants: a challenge for nocturnal ectotherms facing global warming: Thermal limits of diurnal and nocturnal ants journal October 2017
The role of temperature in competition and persistence of an invaded ant assemblage: Coexistence in an invaded ant assemblage journal August 2018
Extreme heterogeneity of population response to climatic variation and the limits of prediction journal March 2019
Draft Aphaenogaster genomes expand our view of ant genome size variation across climate gradients journal January 2019

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