ABSTRACT
Ecological interactions are critical for species and ecosystem well-being, while at the same time, the structure and integrity of interaction networks are only preserved when interacting species persist. Understanding interaction networks and how they collapse or reassemble in response to environmental pressures may thus aid conservation practices. However, the lingering question remains: how do we apply the knowledge of network complexities to practical species conservation? Furthermore, for highly diverse but poorly studied insect groups, how do limitations in identification and taxonomy affect the use of interaction networks in conservation? To prevent secondary extinction associated with the collapse of interaction networks, especially among mutualistic species, suitable indicators are required to assess the persistence of species and the stability of the network as a whole. Here, we describe different trophic and mutualistic networks involving insects including plant-herbivore and plant-pollinator networks and the differences in the structure and properties of these networks. We consider network properties that illustrate interaction network stability and resilience to environmental perturbation, and we discuss potential applications of interaction networks to practical insect conservation. We further consider how limited taxonomic knowledge of insects has hindered our ability to study interactions involving them. We conclude by discussing potential means by which the study of ecological interactions can be improved and better applied in practical conservation of insects.
