Comparative morphology of stridulating setae of Theraphosinae (Araneae: Theraphosidae)

Galleti-Lima, Arthur; Guadanucci, José Paulo Leite

doi:10.1016/j.jcz.2019.08.010

Cited by 10 publications

(2 citation statements)

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“…Mygalomorph spiders from the family Theraphosidae, also known as tarantulas, are also useful models for understanding biogeographic patterns. They possess several intriguing adaptations that have received significant attention in recent years, such as their stridulatory capacity ( Galleti-Lima & Guadanucci, 2018 ; Galleti-Lima & Guadanucci, 2019 ), urticating bristle evolution ( Bertani, 2003 ; Kaderka et al, 2019 ; Foley et al, 2019 ), colouration ( Foley, Saranathan & Piel, 2020 ), and venom compositions ( Santana et al, 2017 ; Lüddecke, Vilcinskas & Lemke, 2019 ). Robust, subfamily-level phylogenies are late in coming ( Lüddecke et al, 2018 ; Foley et al, 2019 ), but these phylogenies have verified the monophylies of all studied subfamilies, except Ischnocolinae (with Selenogyrinae being the only subfamily not represented by these studies).…”

Section: Introductionmentioning

confidence: 99%

Phylogenomic analyses reveal a Gondwanan origin and repeated out of India colonizations into Asia by tarantulas (Araneae: Theraphosidae)

Foley

Krehenwinkel

Cheng

et al. 2021

PeerJ

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The study of biogeography seeks taxa that share a key set of characteristics, such as timescale of diversification, dispersal ability, and ecological lability. Tarantulas are ideal organisms for studying evolution over continental-scale biogeography given their time period of diversification, their mostly long-lived sedentary lives, low dispersal rate, and their nevertheless wide circumtropical distribution. In tandem with a time-calibrated transcriptome-based phylogeny generated by PhyloBayes, we estimate the ancestral ranges of ancient tarantulas using two methods, DEC+j and BBM, in the context of their evolution. We recover two ecologically distinct tarantula lineages that evolved on the Indian Plate before it collided with Asia, emphasizing the evolutionary significance of the region, and show that both lineages diversified across Asia at different times. The most ancestral tarantulas emerge on the Americas and Africa 120 Ma–105.5 Ma. We provide support for a dual colonization of Asia by two different tarantula lineages that occur at least 20 million years apart, as well as a Gondwanan origin for the group. We determine that their current distributions are attributable to a combination of Gondwanan vicariance, continental rafting, and geographic radiation. We also discuss emergent patterns in tarantula habitat preferences through time.

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Section: Introductionmentioning

confidence: 99%

Phylogenomic analyses reveal a Gondwanan origin and repeated out of India colonizations into Asia by tarantulas (Araneae: Theraphosidae)

Foley

Krehenwinkel

Cheng

et al. 2021

PeerJ

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“…Khila et al ., 2012), species and higher‐level groups (e.g. Galleti‐Lima & Guadanucci, 2019; Hemala et al ., 2021), and in adaptive shifts to accommodate different life styles (Giglio et al ., 2003; Li et al ., 2021). Based on the above, the morphological plasticity of the arthropod cuticle may be the primary developmental factor underlying the repeated evolution of stridulation in arthropods.…”

Section: Discussionmentioning

confidence: 99%

Sexual selection and predation drive the repeated evolution of stridulation in Heteroptera and other arthropods

2023

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Acoustic and substrate‐borne vibrations are among the most widely used signalling modalities in animals. Arthropods display a staggering diversity of vibroacoustic organs generating acoustic sound and/or substrate‐borne vibrations, and are fundamental to our broader understanding of the evolution of animal signalling. The primary mechanism that arthropods use to generate vibroacoustic signals is stridulation, which involves the rubbing together of opposing body parts. Although stridulation is common, its behavioural context and evolutionary drivers are often hard to pinpoint, owing to limited synthesis of empirical observations on stridulatory species. This is exacerbated by the diversity of mechanisms involved and the sparsity of their description in the literature, which renders their documentation a challenging task. Here, we present the most comprehensive review to date on the systematic distribution and behavioural context of stridulation. We use the megadiverse heteropteran insects as a model, together with multiple arthropod outgroups (arachnids, myriapods, and selected pancrustaceans). We find that stridulatory vibroacoustic signalling has evolved independently at least 84 times and is present in roughly 20% of Heteroptera, representing a remarkable case of convergent evolution. By studying the behavioural context of stridulation across Heteroptera and 189 outgroup lineages, we find that predation pressure and sexual selection are the main behaviours associated with stridulation across arthropods, adding further evidence for their role as drivers of large‐scale signalling and morphological innovation in animals. Remarkably, the absence of tympanal ears in most Heteroptera suggests that they typically cannot detect the acoustic component of their stridulatory signals. This demonstrates that the adoption of new signalling modalities is not always correlated with the ability to perceive those signals, especially when these signals are directed towards interspecific receivers in defensive contexts. Furthermore, by mapping their morphology and systematic distribution, we show that stridulatory organs tend to evolve in specific body parts, likely originating from cleaning motions and pre‐copulatory displays that are common to most arthropods. By synthesising our understanding of stridulation and stridulatory organs across major arthropod groups, we create the necessary framework for future studies to explore their systematic and behavioural significance, their potential role in sensory evolution and innovation, and the biomechanics of this mode of signalling.

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Introduction to the Theraphosidae

Pérez‐Miles¹

2020

New World Tarantulas

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Comparative morphology of stridulating setae of Theraphosinae (Araneae: Theraphosidae)

Cited by 10 publications

References 12 publications

Phylogenomic analyses reveal a Gondwanan origin and repeated out of India colonizations into Asia by tarantulas (Araneae: Theraphosidae)

Phylogenomic analyses reveal a Gondwanan origin and repeated out of India colonizations into Asia by tarantulas (Araneae: Theraphosidae)

Sexual selection and predation drive the repeated evolution of stridulation in Heteroptera and other arthropods

Introduction to the Theraphosidae

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