Integrative disturbance theory for ecosystem ecologists: a primer with
commentary
Abstract
Understanding what regulates ecosystem functional resistance – the
ecosystem-wide capacity to withstand process change following
disturbance – is essential in this era of global change. However, many
guiding theories relevant to ecosystem ecologists were developed prior
to rapid global change and before tools were available to test them. In
light of new knowledge and conceptual advances across biological
disciplines, we summarize four disturbance theoretical frameworks
relevant to ecosystem ecologists: a) the directionality of disturbance
response; b) functional thresholds; c) disturbance-succession
interactions; and d) diversity-functional resistance relationships. Our
brief viewpoint and synthesis considers how knowledge, theory, and
terminology developed by several biological disciplines, when
integrated, can enhance how ecosystem ecologists analyze and interpret
ecosystem-scale disturbance responses. For example, frameworks
considering thresholds and disturbance-succession interactions should
incorporate regime change, typically the domain of population and
community ecologists. Similarly, the interpretation of ecosystem
functional responses to disturbance requires analytical approaches that
recognize disturbance can promote, inhibit, or fundamentally change
ecosystem functions such as primary production. Moreover, embracing an
encompassing definition of biological diversity is critical to
identifying the ecosystem properties that confer high functional
resistance to disturbance. We suggest that, moving forward,
cross-disciplinary, integrative knowledge is essential to advancing and
refining knowledge in the area of ecosystem functional resistance to
disturbance.