Seasonal Variation in Whole-Body Elemental Concentrations and Excreta Production of a Riparian Orb-Weaving Spider (Larinioides cornutus)

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  Seasonal Variation in Whole-Body Elemental Concentrations and Excreta Production of a Riparian Orb-Weaving Spider (Larinioides cornutus) ABSTRACT Predators influence nutrient cycling by assimilating elements from their prey and returning nutrients to ecosystems via excretion and discarded prey remains. However, seasonal variation in the contribution of predators to nutrient cycling remains poorly understood, particularly for terrestrial arthropod predators such as spiders. We examined temporal variation in whole-body elemental concentrations, excreta C and N concentrations, and cumulative excreta output in a riparian orb-weaving spider ( Larinioides cornutus ) across the growing season of 2024. Adult females were collected across seven sampling periods spanning mid-June to early October, and whole-body concentrations of macronutrients (carbon [C], nitrogen [N], phosphorus [P]) and multiple trace elements were quantified. Whole-body N and P concentrations, and several trace elemen...

First record of Ischnocolus Ausserer, 1871 (Araneae: Theraphosidae) from Turkey

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First record of Ischnocolus Ausserer, 1871 (Araneae: Theraphosidae) from Turkey

Abstract

Ischnocolus valentinus (Dufour, 1820) is recorded from Muğla Province in western Turkey based on a male deposited in the Senckenberg Forschungsinstitut und Naturmuseum. This also constitutes the first record of the genus Ischnocolus from Turkey. 

Geci, Donard & Kunt, Kadir & Yağmur, Ersen & Sherwood, Danniella. (2026). First record of Ischnocolus Ausserer, 1871 (Araneae: Theraphosidae) from Turkey. 23. 344-349. 10.15298/invertzool.23.2.10. ResearchGate

Acknowledgement: My sincere thanks, as always, to Danni Sherwood for sharing this manuscript. I am deeply grateful for your friendship, support, and willingness to keep me informed of new developments in the field.