Food availability

Intervention

4 papers study it5 findings

Across all fields, 4 papers: none in people yet, 4 in animals

  • 2 independent labs in 2 countries
  • Funders: James S. McDonnell Foundation and 5 more
  • Animals1
  • Model organisms3

Outcomes

2

Survival

no changein H. oligactis1

1 study
  1. Food availability has no effect on survival in H. oligactis.

    “survival rate was not affected by the amount of food.”

    Model organisms

    Resource allocation and post-reproductive degeneration in the freshwater cnidarian Hydra oligactis (Pallas, 1766)

    Zoology (Jena, Germany)

Fecundity

upin H. oligactis1

1 study
  1. Food availability increases fecundity in H. oligactis.

    “Food availability significantly affected fecundity (number of eggs or testes produced), with the largest number of gonads being produced by animals kept on a high food regime.”

    Model organismshigh food regime

    Resource allocation and post-reproductive degeneration in the freshwater cnidarian Hydra oligactis (Pallas, 1766)

    Zoology (Jena, Germany)

Associations

3

Selection favoring longer zooid longevity

upin S. marine1

1 study
  1. Food availability is associated with selection favoring longer zooid longevity in S. marine.

    “In environments where food availability is high and flow rate is low, selection also favours colonies with longer zooid longevity.”

    Model organismsHigh food availability and low flow rate

    Resources mediate selection on module longevity in the field

    Journal of evolutionary biology

Reproductive output

downin D. pulex1

1 study
  1. Food availability is associated with reproductive output in D. pulex.

    “the individuals at the three lower food concentrations had a decrease in reproduction and lifespan”

    Model organismsincreasing starvationthree lower food concentrations

    Effects of fluctuating temperature and food availability on reproduction and lifespan

    Experimental gerontology

Lifespan

downin D. pulex1

1 study
  1. Food availability is associated with lifespan in D. pulex.

    “the individuals at the three lower food concentrations had a decrease in reproduction and lifespan”

    Model organismsincreasing starvationthree lower food concentrations

    Effects of fluctuating temperature and food availability on reproduction and lifespan

    Experimental gerontology

Latest