Results 81 to 90 of about 12,925 (237)

A glimpse of the tropics : spiders (Araneae) in the greenhouses of the Botanic Garden Berlin-Dahlem [PDF]

, 2010
In a survey of the spider fauna in greenhouses of the Botanic Garden Berlin-Dahlem, 30 spider species were recorded. Two species are new to Europe: Theotima minutissima (Petrunkevitch, 1929) and Heteroonops spinimanus (Simon, 1891). T. minutissima is the
Kielhorn, Karl-Hinrich
core  

A Universal Meta‐Heuristic Framework for Influence Maximisation in Hypergraphs

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Influence maximisation (IM) aims to select a small number of nodes that are able to maximise their influence in a network and covers a wide range of applications. Despite numerous attempts to provide effective solutions in simple networks, higher‐order interactions between entities in various real‐world systems are usually not taken into ...
Ming Xie, Chuang Liu, Yang Chen, Zi‐Ke Zhang, Xiaoyang Liu, Xiu‐Xiu Zhan   +5 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

First records of Epeus bicuspidatus and description of a new species of Epeus (Araneae, Salticidae) from Vietnam [PDF]

Biodiversity Data Journal
Epeus is a genus of jumping spiders (Salticidae) comprising 20 species, four of which have been recorded in Vietnam.In this paper, we present descriptions and illustrations of two jumping spider species of the genus Epeus from Vietnam. Epeus bicuspidatus
Duc-Toan Vu, Van-Tang Duong, Dinh-Sac Pham   +2 more
doaj   +3 more sources

Sperm Transfer Under Behavioral and Morphological Constraints in the Orb‐Web Spider Genus Argiope

Integrative Zoology, EarlyView.
The polygamous mating system of the orb‐web spider genus Argiope provides a model to study the evolution of sperm transfer under morphological and behavioral constraints. This helps us to understand how male and female behavioral and morphological reproductive traits influence sperm transfer.
Chathuranga Dharmarathne, Donald J. McLean, Peter Michalik, M. E. Herberstein   +3 more
wiley   +1 more source

Two new Thiratoscirtus species from Gabon (Araneae, Salticidae, Thiratoscirtinae)

European Journal of Taxonomy, 2015
Two new species of jumping spiders, Thiratoscirtus oberleuthneri (♂) and Th. lamboji (♀), are described from Gabon, one of the least explored areas of the Afrotropics. Both species live in rainforest, at the forest floor.
Michael Seiter, Wanda Wesolowska
doaj   +1 more source

Depth perception from image defocus in a jumping spider [PDF]

, 2012
The principal eyes of jumping spiders have a unique retina with four tiered photoreceptor layers, on each of which light of different wavelengths is focused by a lens with appreciable chromatic aberration.
ARIKAWA Kentaro, et al., KINOSHITA Michiyo, NAGATA Takashi, 謙太郎 蟻川   +4 more
core   +2 more sources

UV‐Induced Fluorescence in the Balance: Mate Choice and Predation Risk in the Female Ornamented Jumping Spiders

Integrative Zoology, EarlyView.
This study investigates the potential adaptive advantages of female‐specific UV‐induced fluorescence in male mate‐choice and predation risk, as fitness costs, using two species of ornate jumping spiders Phintella vittata and Ph. bifurcilinea. Our findings provide empirical evidence of a trade‐off: While fluorescence enhances male mate preference, it ...
Yingna Zhou, Long Yu, Xiaoyan Wang, Daiqin Li, Xin Xu   +4 more
wiley   +1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

Three new species of plexippine jumping spiders (Salticidae, Salticinae, Plexippini) from dry forest in Boeny region, north-western Madagascar [PDF]

African Invertebrates
Despite being the most diverse family of spiders, Salticidae (jumping spiders) are poorly studied in Madagascar with only 47 of the total 105 species recorded in the last 100 years.
Katie I. Murray, Jaime Escobar-Toledo, Brogan L. Pett   +2 more
doaj   +3 more sources