Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

CABI Book Chapter

Invasion biology: hypotheses and evidence.

Book cover for Invasion biology: hypotheses and evidence.

Description

This book, containing 18 chapters, combines the hierarchy-of-hypotheses (HoH) approach with hypothesis networks for invasion biology. This book aims to further develop the HoH approach by inviting critical comments (Part I), apply it to 12 major invasion hypotheses (Part II) and explore how it can be expanded to a hierarchically structured hypothesis network (Chapter 7 and Part III). It is importa...

Chapter 9 (Page no: 71)

Disturbance hypothesis.

The disturbance hypothesis posits that the invasion success of non-native species is higher in highly disturbed than in relatively undisturbed ecosystems. A synonymous formulation is that highly disturbed ecosystems show lower resistance against nonnative species than relatively undisturbed ecosystems. On the basis of a systematic literature search, we identified 126 studies addressing the disturbance hypothesis. Applying the hierarchy-of-hypotheses approach, we classified these studies according to: (i) the cause of disturbance (direct anthropogenic vs indirect or non-anthropogenic disturbances); (ii) the type of disturbance; and (iii) the measure of invasion success. The majority of studies reported evidence supporting the disturbance hypothesis (59%, with 21% of the studies questioning the hypothesis and another 21% being undecided). Most subhypotheses were supported as well, only studies focusing on conservation management or fire as disturbances frequently reported questioning evidence. There was also consistent support for the hypothesis across taxonomic groups and terrestrial as well as aquatic systems. However, experimental field studies showed a lower level of support than observational or laboratory studies. Overall, this hypothesis is relatively well, but not very strongly supported by currently available studies. Given that human disturbances will further increase in the foreseeable future, we can predict that these will tend to further promote biological invasions.

Other chapters from this book

Chapter: 1 (Page no: 3) Invasion biology: searching for predictions and prevention, and avoiding lost causes. Author(s): Cassey, P., García-Díaz, P., Lockwood, J. L., Blackburn, T. M.
Chapter: 2 (Page no: 14) The hierarchy-of-hypotheses approach. Author(s): Heger, T., Jeschke, J. M.
Chapter: 3 (Page no: 19) Hierarchy of hypotheses or hierarchy of predictions? Clarifying key concepts in ecological research. Author(s): Farji-Brener, A. G., Amador-Vargas, S.
Chapter: 4 (Page no: 23) Mapping theoretical and evidential landscapes in ecological science: Levins' virtue trade-off and the hierarchy-of-hypotheses approach. Author(s): Griesemer, J.
Chapter: 5 (Page no: 30) A hierarchy of hypotheses or a network of models. Author(s): Scheiner, S. M., Fox, G. A.
Chapter: 6 (Page no: 38) The hierarchy-of-hypotheses approach updated - a toolbox for structuring and analysing theory, research and evidence. Author(s): Heger, T., Jeschke, J. M.
Chapter: 7 (Page no: 49) A network of invasion hypotheses. Author(s): Enders, M., Jeschke, J. M.
Chapter: 8 (Page no: 60) Biotic resistance and island susceptibility hypotheses. Author(s): Jeschke, J. M., Debille, S., Lortie, C. J.
Chapter: 10 (Page no: 79) Invasional meltdown hypothesis. Author(s): Braga, R. R., Gómez Aparicio, L., Heger, T., Vitule, J. R. S., Jeschke, J. M.
Chapter: 11 (Page no: 92) Enemy release hypothesis. Author(s): Heger, T., Jeschke, J. M.
Chapter: 12 (Page no: 103) Evolution of increased competitive ability and shifting defence hypotheses. Author(s): Müller, C.
Chapter: 13 (Page no: 124) Tens rule. Author(s): Jeschke, J. M., Pyšek, P.
Chapter: 14 (Page no: 133) Phenotypic plasticity hypothesis. Author(s): Torchyk, O., Jeschke, J. M.
Chapter: 15 (Page no: 140) Darwin's naturalization and limiting similarity hypotheses. Author(s): Jeschke, J. M., Erhard, F.
Chapter: 16 (Page no: 147) Propagule pressure hypothesis. Author(s): Jeschke, J. M., Starzer, J.
Chapter: 17 (Page no: 157) Synthesis. Author(s): Jeschke, J. M., Heger, T.
Chapter: 18 (Page no: 167) Conclusions and outlook. Author(s): Heger, T., Jeschke, J. M.