Elemental stoichiometry of Drosophila and their hosts

T. A. Markow, B. Raphael, D. Dobberfuhl, C. M. Breitmeyer, James Elser, E. Pfeiler

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

1. Nitrogen (N) and phosphorus (P) availabilities are important ecological determinants of resource use in nature. Despite the wide range of hosts used by species of the genus Drosophila, elemental composition of natural resources of these flies has never been investigated. 2. Total body N and P contents were determined in seven species of wild-caught Drosophila, their natural hosts, and artificial diets routinely used to rear these flies in the laboratory. The flies tested included D. hydei, D. arizonae, D. simulans and D. pseudoobscura collected from rotting fruit (melons), and the cactophilic D. nigrospiracula, D. mojavensis and D. pachea collected from their specific host plants, Saguaro, Organpipe and Senita cactus, respectively. 3. Natural hosts varied in elemental composition, with fruit showing higher N (2.8-4.3% dry mass) and P (0.50-0.67%) levels compared with cacti (0.5-1.6% N; 0-01-0.29% P). No consistent differences in N and P levels were found between healthy and necrotic cactus tissue. 4. Total body N and P also varied among Drosophila species. This variation mirrored the levels of N and P found in the respective hosts and laboratory diets. N:P ratios were consistently lower in female flies compared with conspecific males suggesting phosphorus demands during oogenesis are high. 5. Potential mechanisms by which Drosophila deal with N or P limitation in nature are discussed.

Original languageEnglish (US)
Pages (from-to)78-84
Number of pages7
JournalFunctional Ecology
Volume13
Issue number1
DOIs
StatePublished - Feb 1999

Fingerprint

stoichiometry
cactus
Drosophila
fruit
Drosophila hydei
phosphorus
artificial diet
fruits
oogenesis
artificial diets
melons
resource use
host range
natural resources
host plant
natural resource
host plants
diet
nitrogen
elemental composition

Keywords

  • Nitrogen
  • Phosphorus
  • Resource ecology
  • Stoichiometry

ASJC Scopus subject areas

  • Ecology

Cite this

Markow, T. A., Raphael, B., Dobberfuhl, D., Breitmeyer, C. M., Elser, J., & Pfeiler, E. (1999). Elemental stoichiometry of Drosophila and their hosts. Functional Ecology, 13(1), 78-84. https://doi.org/10.1046/j.1365-2435.1999.00285.x

Elemental stoichiometry of Drosophila and their hosts. / Markow, T. A.; Raphael, B.; Dobberfuhl, D.; Breitmeyer, C. M.; Elser, James; Pfeiler, E.

In: Functional Ecology, Vol. 13, No. 1, 02.1999, p. 78-84.

Research output: Contribution to journalArticle

Markow, TA, Raphael, B, Dobberfuhl, D, Breitmeyer, CM, Elser, J & Pfeiler, E 1999, 'Elemental stoichiometry of Drosophila and their hosts', Functional Ecology, vol. 13, no. 1, pp. 78-84. https://doi.org/10.1046/j.1365-2435.1999.00285.x
Markow TA, Raphael B, Dobberfuhl D, Breitmeyer CM, Elser J, Pfeiler E. Elemental stoichiometry of Drosophila and their hosts. Functional Ecology. 1999 Feb;13(1):78-84. https://doi.org/10.1046/j.1365-2435.1999.00285.x
Markow, T. A. ; Raphael, B. ; Dobberfuhl, D. ; Breitmeyer, C. M. ; Elser, James ; Pfeiler, E. / Elemental stoichiometry of Drosophila and their hosts. In: Functional Ecology. 1999 ; Vol. 13, No. 1. pp. 78-84.
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