The neonicotinoid imidacloprid impairs the predatory performance and functional response of the jumping spider Helpis minitabunda (Araneae, Salticidae)

Posted by
  The neonicotinoid imidacloprid impairs the predatory performance and functional response of the jumping spider Helpis minitabunda (Araneae, Salticidae) Abstract The neonicotinoid imidacloprid can cause lethal and sublethal effects in non-target organisms, including impaired behavior, reduced fertility, disrupted locomotion, and reduced predatory performance in arthropods. Spiders are among the most abundant arthropod predators in terrestrial ecosystems, including agricultural ecosystems, yet the effects of neonicotinoids on the predatory function of jumping spiders remain poorly understood. The functional response of a predator describes how predation rates change with prey density and is key to understanding predator–prey dynamics. We tested whether acute exposure to a commercial formulation of imidacloprid at field-recommended concentrations alters the functional response of the Aussie bronze jumping spider, Helpis minitabunda (L. Koch, 1880). We compared the predation of treat...

The genome sequence of an orb-weaver spider, Araneus angulatus Clerck, 1757 (Araneae: Araneidae)

Posted by

 


The genome sequence of an orb-weaver spider, Araneus angulatus Clerck, 1757 (Araneae: Araneidae)

Abstract

We present a genome assembly from an individual female Araneus angulatus (orb-weaver spider; Arthropoda; Arachnida; Araneae; Araneidae). The assembly contains two haplotypes with total lengths of 2 980.91 megabases and 2 941.08 megabases. Most of haplotype 1 (94.74%) is scaffolded into 28 chromosomal pseudomolecules. Haplotype 2 was assembled to scaffold level. The mitochondrial genome has also been assembled, with a length of 14.53 kilobases. This assembly was generated as part of the Darwin Tree of Life project, which produces reference genomes for eukaryotic species found in Britain and Ireland.


Raper CM, Sivell O, Natural History Museum Genome Acquisition Lab et al. The genome sequence of an orb-weaver spider, Araneus angulatus Clerck, 1757 (Araneae: Araneidae) [version 1; peer review: awaiting peer review]. Wellcome Open Res 2025, 10:656 (https://doi.org/10.12688/wellcomeopenres.25196.1)