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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 documented cases of invertebrate predation by greater grisons (Galictis vittata)

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Two new spider species of the genus Melpomene O. Pickard-Cambridge, 1898, from Colombia and Panama with complementary description of M. panamana (Petrunkevitch, 1925) (Araneae: Agelenidae)

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Modelling the potential distribution and conservation scenarios for the troglobitic spider Pinelema elinae Brescovit, Gallão & Cizauskas, 2023 (Telemidae) in the Neotropics: palaeoclimatic evidence and current threats

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Hemostasis-Modulating Proteins from Indian Elapid and Viper Snake Venom: Mechanistic Insights and Therapeutic Opportunities

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In Memoriam: Giraldo Alayón García

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The first genus with four sac-like structures in the vulva in the cobweb spider subfamily Theridiinae Sundevall, 1833 (Araneae: Theridiidae)

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A new species of Urupelma Kaderka et al. 2023 from Peru (Araneae, Theraphosidae, Theraphosinae), and a new proposal of homologous keels

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Phase response curve and RNA-sequencing demonstrate spiders’ sensitivity to light and pinpoint candidate light-responsive genes

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The Arachnological Collection (Chelicerata, Arachnida) at the Federal University of Bahia, Brazil: taxonomic status, temporal patterns, geographic coverage and data availability

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Novel Biochemical Findings from Bothrops marajoensis Venom

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The Asian Dragon Puzzle: how multiple dispersal events have shaped the evolutionary history of Eastern Asian dragon pseudoscorpions (Arachnida: Pseudoscorpiones: Allochthonius)

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New records and invasion risk of Stenochrus portoricensis Chamberlin, 1922 (Schizomida: Hubbardiidae) in Brazil

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Distribution of scorpions (arachnida: scorpiones) according to inaturalist observations in Panama

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Targeting snake venom metalloproteinases: structural diversity, molecular pathogenesis and therapeutic interventions

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Taxonomy Takes Time: Shortcuts to Synonymy

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