TY - JOUR

T1 - Spillover of functionally important organisms between managed and natural habitats

AU - Blitzer, Eleanor J.

AU - Dormann, Carsten F.

AU - Holzschuh, Andrea

AU - Klein, Alexandra-Maria

AU - Rand, Tatyana A.

AU - Tscharntke, Teja

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Land-use intensification has led to a landscape mosaic that juxtaposes human-managed and natural areas. In such human-dominated and heterogeneous landscapes, spillover across habitat types, especially in systems that differ in resource availability, may be an important ecological process structuring communities. While there is much evidence for spillover from natural habitats to managed areas, little attention has been given to flow in the opposite direction. This paper synthesizes studies published to date from five functionally important trophic groups, herbivores, pathogens, pollinators, predators, and seed dispersers, and discusses evidence for spillover from managed to natural systems in all five groups. For each of the five focal groups, studies in the natural to managed direction are common, often with multiple review articles on each subject which document dozens of examples. In contrast, the number of studies which examine movement in the managed to natural direction is generally less than five studies per trophic group. These findings suggest that spillover in the managed to natural direction has been largely underestimated. As habitat modification continues, resulting in increasingly fragmented landscapes, the likelihood and size of any spillover effect will only increase.

AB - Land-use intensification has led to a landscape mosaic that juxtaposes human-managed and natural areas. In such human-dominated and heterogeneous landscapes, spillover across habitat types, especially in systems that differ in resource availability, may be an important ecological process structuring communities. While there is much evidence for spillover from natural habitats to managed areas, little attention has been given to flow in the opposite direction. This paper synthesizes studies published to date from five functionally important trophic groups, herbivores, pathogens, pollinators, predators, and seed dispersers, and discusses evidence for spillover from managed to natural systems in all five groups. For each of the five focal groups, studies in the natural to managed direction are common, often with multiple review articles on each subject which document dozens of examples. In contrast, the number of studies which examine movement in the managed to natural direction is generally less than five studies per trophic group. These findings suggest that spillover in the managed to natural direction has been largely underestimated. As habitat modification continues, resulting in increasingly fragmented landscapes, the likelihood and size of any spillover effect will only increase.

KW - Ecosystems Research

KW - Edge Effects

KW - Herbivory

KW - Mosaic landscapes

KW - Pollination

KW - Seed dispersal

KW - Edge Effects

KW - Herbivory

KW - Mosaic landscapes

KW - Pollination

KW - Seed dispersal

KW - Biology

UR - http://www.scopus.com/inward/record.url?scp=81255167447&partnerID=8YFLogxK

U2 - 10.1016/j.agee.2011.09.005

DO - 10.1016/j.agee.2011.09.005

M3 - Scientific review articles

VL - 146

SP - 34

EP - 43

JO - Agriculture, Ecosystems and Environment

JF - Agriculture, Ecosystems and Environment

SN - 0167-8809

IS - 1

ER -