Fersiynau electronig

Dangosydd eitem ddigidol (DOI)

  • Adham Ashton-Butt
    University of SouthamptonUniversity of Hull
  • Simon Willcock
    University of Southampton
  • Dedi Purnomo
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Suhardi
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Anak A.K. Aryawan
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Resti Wahyuningsih
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Mohammad Naim
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Guy M. Poppy
    University of Southampton
  • Jean-Pierre Caliman
    SMART Research Institute, Jalan Teuku Umar, Pekanbaru, Indonesia
  • Kelvin S-H. Peh
    University of SouthamptonUniversity of Cambridge
  • Jake L. Snaddon
    University of Southampton
Conversion of forest to oil palm plantations results in a significant loss of biodiversity. Despite this, first‐cycle oil palm plantations can sustain relatively high biodiversity compared to other crops. However, the long‐term effects of oil palm agriculture on flora and fauna are unknown. Oil palm has a 25‐year commercial lifespan before it must be replanted, due to reduced productivity and difficulty of harvesting. Loss of the complex vegetation structure of oil palm plantations during the replanting process will likely have impacts on the ecosystem at a local and landscape scale. However, the effect of replanting on biodiversity is poorly understood.

Here, we investigate the effects of replanting oil palm on soil macrofauna communities. We assessed ordinal richness, abundance, and community composition of soil macrofauna in first‐ (25‐ to 27‐year‐old) and second‐cycle oil palm (freshly cleared, 1‐year‐old, 3‐year‐old, and 7‐year‐old mature).

Macrofauna abundance and richness drastically declined immediately after replanting. Macrofauna richness showed some recovery 7 years after replanting, but was still 19% lower than first‐cycle oil palm. Macrofauna abundance recovered to similar levels to that of first‐cycle oil palm plantations, 1 year after replanting. This was mainly due to high ant abundance, possibly due to the increased understory vegetation as herbicides are not used at this age. However, there were subsequent declines in macrofauna abundance 3 and 7 years after replanting, resulting in a 59% drop in macrofauna abundance compared to first‐cycle levels. Furthermore, soil macrofauna community composition in all ages of second‐cycle oil palm was different to first‐cycle plantations, with decomposers suffering particular declines.

After considerable biodiversity loss due to forest conversion for oil palm, belowground invertebrate communities suffer a second wave of biodiversity loss due to replanting. This is likely to have serious implications for soil invertebrate diversity and agricultural sustainability in oil palm landscapes, due to the vital ecosystem functions that soil macrofauna provide.

Allweddeiriau

Iaith wreiddiolSaesneg
Tudalennau (o-i)6433-6443
CyfnodolynEcology and Evolution
Cyfrol9
Rhif y cyfnodolyn11
Dyddiad ar-lein cynnar7 Mai 2019
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Meh 2019
Gweld graff cysylltiadau