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

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  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...

New data on spiders (Arachnida: Araneae) from the Carrascal de la Font Roja Natural Park (Alicante, Spain)

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New data on spiders (Arachnida: Araneae) from the Carrascal de la Font Roja Natural Park (Alicante, Spain)

Abstract

The results of an annual sampling in the Natural Park of Carrascal de la Font Roja (Alcoi, Alicante) are presented. Lathys sexpustulata Simon, 1878, Canariphantes aff. naili (Bosmans & Bouragba, 1992) and Bassaniodes graecus (C. L. Koch, 1837) are the first appointments for the Iberian Peninsula. Tapinopa disjugata Simon, 1884 is the first records for Spain. In addition, the family Miturgidae, 4 genera and 26 species, are the first records for the Valencian Community. The family Theraphosidae, 5 genera and 9 species, are also the first records in Alicante province. As a result, the Natural Park of Carrascal de la Font Roja has increased its araneofauna with the first record of 8 families, 54 genera and 88 species. The number of Ibero-Balearic endemic species amounts to 22. Add the presence of a male of Gluvia dorsalis (Latreille, 1817), family Daesidae, order Solifugae.


Hernández-Corral, J., Barrientos, J. A., & García-Teba, J. P. (2025). Nuevos datos sobre las arañas (Arachnida: Araneae) del Parc Natural del Carrascal de la Font Roja (Alicante, España). Revista Ibérica de Aracnología, 46, 51–75. Grupo Ibérico de Aracnología (S.E.A.)