A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
The experimental range extension of guppies (Poecilia reticulata) influences the metabolic activity of tropical streams (2021)
Leduc, A. O. H. C., Thomas, S. A., Bassar, R. D., López-Sepulcre, A., MacNeill, K., El-Sabaawi, R., Reznick, D. N., Flecker, A. S., & Travis, J. (2021). The experimental range extension of guppies (Poecilia reticulata) influences the metabolic activity of tropical streams. Oecologia, 195(4), 1053-1069. https://doi.org/10.1007/s00442-021-04884-0
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Leduc, Antoine O. H. C.; Thomas, Steven A.; Bassar, Ronald D.; López-Sepulcre, Andrés; MacNeill, Keeley; El-Sabaawi, Rana; Reznick, David N.; Flecker, Alexander S.; Travis, Joseph
Lehti tai sarja: Oecologia
ISSN: 0029-8549
eISSN: 1432-1939
Julkaisuvuosi: 2021
Volyymi: 195
Lehden numero: 4
Artikkelin sivunumerot: 1053-1069
Kustantaja: Springer
Julkaisumaa: Saksa
Julkaisun kieli: englanti
DOI: https://doi.org/10.1007/s00442-021-04884-0
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Tiivistelmä
The ecological consequences of biological range extensions reflect the interplay between the functional characteristics of the newly arrived species and their recipient ecosystems. Teasing apart the relative contribution of each component is difficult because most colonization events are studied retrospectively, i.e., after a species became established and its consequences apparent. We conducted a prospective experiment to study the ecosystem consequences of a consumer introduction, using whole-stream metabolism as our integrator of ecosystem activity. In four Trinidadian streams, we extended the range of a native fish, the guppy (Poecilia reticulata), by introducing it over barrier waterfalls that historically excluded it from these upper reaches. To assess the context dependence of these range extensions, we thinned the riparian forest canopy on two of these streams to increase benthic algal biomass and productivity. Guppy’s range extension into upper stream reaches significantly impacted stream metabolism but the effects depended upon the specific stream into which they had been introduced. Generally, increases in guppy biomass caused an increase in gross primary production (GPP) and community respiration (CR). The effects guppies had on GPP were similar to those induced by increased light level and were larger in strength than the effects stream stage had on CR. These results, combined with results from prior experiments, contribute to our growing understanding of how consumers impact stream ecosystem function when they expand their range into novel habitats. Further study will reveal whether local adaptation, known to occur rapidly in these guppy populations, modifies the ecological consequences of this species introduction.
YSO-asiasanat: vesiekologia; vesiekosysteemit; purot; trooppinen vyöhyke; tulokaslajit; leviäminen; evoluutioekologia; hammaskarpit
Vapaat asiasanat: colonization; ecosystem metabolism; evo-eco feedbacks; evolutionary ecology; range extension; stream ecology; tropical fish
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Tulokaslajin nopean evoluution ja ekosysteemivaikutusten ymmärtämiseen tarvittavat kokeelliset ja matemaattiset lähestymistavat
- Lopez-Sepulcre, Andres
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2021
JUFO-taso: 2