18 documents found, page 1 of 2

Insect conservation on islands

Protected areas and insect conservation

Ellenberg Indicator Values Disclose Complex Environmental Filtering Processes i...

Ellenberg indicator values (EIVs) express plant preferences for temperature, light, continentality, soil moisture, pH, and soil nutrients, and have been largely used to deduce environmental characteristics from plant communities. However, EIVs might also be used to investigate the importance of filtering mechanisms in shaping plant communities according to species ecological preferences, a so far overlooked use...

Influence of grazing and solar panel installation on tenebrionid beetles (Coleo...

Grazing may represent a major threat to biodiversity in arid grasslands. The increasing use of grasslands for solar parks may represent a new important threat. No study has investigated the effects of solar parks on soil insects. Tenebrionids are a major component of the arthropod fauna of grasslands of central Asia. These ecosystems are threatened by grazing and increasing land use for solar parks. Aim of this...

Niche overlap and species co-occurrence patterns in carabid communities of the ...

Understanding how species sort themselves into communities is essential to explain the mechanisms that maintain biodiversity. Important insights into potential mechanisms of coexistence may be obtained from observation of non-random patterns in community assembly. The spatial niche overlap (Pianka index) and co-occurrence (c-score) patterns in carabid species in three types of steppes (desert steppe, typical st...

Diversity Patterns of Dung Beetles along a Mediterranean Elevational Gradient

Most studies of biodiversity–elevational patterns do not take species abundance into consideration. Hill numbers are a unified family of indices that use species abundance and allow a complete characterization of species assemblages through diversity profiles. Studies on dung beetle responses to elevation were essentially based on species richness and produced inconsistent results because of the non-distinction...

The Role of Small Lowland Patches of Exotic Forests as Refuges of Rare Endemic ...

Islands have been disproportionately affected by the current biodiversity crisis. In island biotas, one of the most recurrent anthropic alterations is species introduction. Invasion of exotic species may represent a major threat for island biotas, because invasive species may change species composition and simplify community dynamics. We investigated diversity patterns of native and introduced species in native...

Emergent Rarity Properties in Carabid Communities From Chinese Steppes With Dif...

Species abundance distributions (SADs) are increasingly used to investigate how species community structure changes in response to environmental variations. SAD models depict the relative abundance of species recorded in a community and express fundamental aspects of the community structure, namely patterns of commonness and rarity. However, the influence of differences in environmental conditions on SAD charac...

Biota from the coastal wetlands of Praia da Vitória (Terceira, Azores, Portugal...

Background: During a LIFE research project aiming at the implementation of the conservation of the habitats and restoration of coastal wetland areas of Praia da Vitória (Terceira, Azores, Portugal), there was the opportunity undertake a systematic record of several groups of arthropods in three wetland areas: Paul da Praia da Vitória (PPV), Paul do Belo Jardim (PBJ) and Paul da Pedreira do Cabo da Praia (PPCP)....

What can the parameters of the species–area relationship (SAR) tell us? Insight...

AIM: The species–area relationship (SAR) is often modelled by the linearized power function log S = log c + z log A, where S is species richness, A is area, logc is the intercept and z is the slope. Although investigating how c and z values vary across taxa and archipelagos can provide insights into the biology of the SAR, this approach has many caveats. In this study, we aim to clarify how and why SARs should ...