Results 11 to 20 of about 141,967 (348)

Spiders in caves [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2017
World experts of different disciplines, from molecular biology to macro-ecology, recognize the value of cave ecosystems as ideal ecological and evolutionary laboratories. Among other subterranean taxa, spiders stand out as intriguing model organisms for their ecological role of top predators, their unique adaptations to the hypogean medium
S. Mammola, M. Isaia
semanticscholar   +5 more sources

Specificity of spiders among fear- and disgust-eliciting arthropods: Spiders are special, but phobics not so much.

open access: yesPLoS ONE, 2021
To investigate a specificity of spiders as a prototypical fear- and disgust-eliciting stimuli, we conducted an online experiment. The respondents rated images of 25 spiders, 12 non-spider chelicerates, and 10 other arthropods on a fear and disgust 7 ...
Eva Landová   +6 more
doaj   +1 more source

Beneficial Effects of Ants and Spiders on the Reproductive Value of Eriotheca gracilipes (Malvaceae) in a Tropical Savanna. [PDF]

open access: yesPLoS ONE, 2015
Predators affect plant fitness when they forage on them and reduce the action of herbivores. Our study evaluates the complementary effects of spiders and ants that visit the extrafloral nectaries of Eriotheca gracilipes (Malvaceae) on the production of ...
Vanessa Stefani   +3 more
doaj   +1 more source

Plant–animal interactions between carnivorous plants, sheet‐web spiders, and ground‐running spiders as guild predators in a wet meadow community

open access: yesEcology and Evolution, 2020
Plant–animal interactions are diverse and widespread shaping ecology, evolution, and biodiversity of most ecological communities. Carnivorous plants are unusual in that they can be simultaneously engaged with animals in multiple mutualistic and ...
James J. Krupa   +4 more
doaj   +1 more source

Novel decorating behaviour of silk retreats in a challenging habitat [PDF]

open access: yesPeerJ, 2022
Many ecological interactions of spiders with their potential prey and predators are affected by the visibility of their bodies and silk, especially in habitats with lower structural complexity that expose spiders. For instance, the surface of tree trunks
Alfonso Aceves-Aparicio   +4 more
doaj   +2 more sources

Spiders in a hostile world (Arachnoidea, Araneae)

open access: yesArachnologische Mitteilungen, 2011
Spiders are powerful predators, but the threats confronting them are numerous. A survey is presented of the many different arthropods which waylay spiders in various ways. Some food-specialists among spiders feed exclusively on spiders.
Helsdingen, Peter J. van
doaj   +1 more source

The common house spider, Parasteatoda tepidariorum, maintains silk gene expression on sub-optimal diet.

open access: yesPLoS ONE, 2020
Cobweb weaving spiders and their relatives spin multiple task-specific fiber types. The unique material properties of each silk type result from differences in amino acid sequence and structure of their component proteins, primarily spidroins (spider ...
Jeremy Miller   +4 more
doaj   +1 more source

Divergence in gut bacterial community between females and males in the wolf spider Pardosa astrigera

open access: yesEcology and Evolution, 2022
Sex is one of the important factors affecting gut microbiota. As key predators in agroforestry ecosystem, many spider species show dramatically different activity habits and nutritional requirements between females and males. However, how sex affects gut
Ying Gao   +4 more
doaj   +1 more source

Phylogenomic reclassification of the world’s most venomous spiders (Mygalomorphae, Atracinae), with implications for venom evolution

open access: yesScientific Reports, 2018
Here we show that the most venomous spiders in the world are phylogenetically misplaced. Australian atracine spiders (family Hexathelidae), including the notorious Sydney funnel-web spider Atrax robustus, produce venom peptides that can kill people ...
M. Hedin   +4 more
semanticscholar   +1 more source

Epigaeic spider response to sagebrush steppe restoration treatments

open access: yesEcosphere, 2022
Epigaeic (ground‐active) spiders are dominant predators of arthropods and are important prey for vertebrates in sagebrush steppe systems. As part of the Sagebrush Steppe Treatment Evaluation Project (SageSTEP), the response of epigaeic spiders to ...
James D. McIver, Ruth Brandt
doaj   +1 more source

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