Measuring insect rarity: practical issues, pragmatic approaches

Apply

Measuring insect rarity: practical issues, pragmatic approaches

Journal Title: Journal of Insect Biodiversity - Year 2013, Vol 1, Issue 10

Abstract

Rarity is often considered an indication of species extinction risk, and rarity measures are used as important tools to predict species vulnerability and hence to establish conservation priorities. For these reasons, rarity is among the most important issues involved in conservation programs. A number of studies have attempted to investigate relationships between rarity and extinction risk in plants and vertebrates, whereas only few papers have investigated similar issues in invertebrate taxa. This has limited the use of standardized rarity measures in invertebrate conservation studies. Assessing rarity is especially important when other pieces of information are difficult, or even definitively impossible, to obtain, as commonly found for most insects. Four broad categories of rarity are commonly recognized: geographical, ecological, population and phylogenetic rarity. On the basis of this framework, we present here a short review of the rarity forms most frequently investigated in insect studies, and their relationships with the main species traits related to extinction risk (such as body size, mobility, trophic level, host specificity, larval and adult behaviours, etc.). We discuss what they mean, how they can be measured, which type of data (field collections, museum data, literature information) are needed and how to avoid the most common pitfalls associated with rarity studies, with indications for pragmatic approaches in data analysis.

Authors and Affiliations

Simone Fattorini, Andrea Di Giulio, Leonardo Dapporto

Keywords

Extinction risk conservation biology vulnerability distribution threat invertebrates arthropods

An annotated synopsis of the powder post beetles of Iran (Coleoptera: Bostrichoidea: Bostrichidae)

An annotated synopsis of Iranian Bostrichidae (Coleoptera: Bostrichoidea) is provided as a basis for future studies, with notes on distribution, host plants, biology and economic importance. In total, 31 species from 1...

The genus Dioscore Warren, 1907: two new species and analysis of characters spread (Lepidoptera: Geometridae: Geometrinae)

The genus Dioscore Warren, 1907 is reviewed. Diagnostic characters are listed for the genus and species included, the male genitalia are described for the first time for seven species and the female genitalia for three...

EP ID EP34179
DOI -
Views 387
Downloads 0