Results 1 to 10 of about 131,621 (297)

Terebra steering in chalcidoid wasps

open access: yesFrontiers in Zoology, 2023
Various chalcidoid wasps can actively steer their terebra (= ovipositor shaft) in diverse directions, despite the lack of terebral intrinsic musculature.
Benjamin Eggs   +5 more
doaj   +1 more source

Significance of the suture line in cephalopod taxonomy revealed by 3D morphometrics in the modern nautilids Nautilus and Allonautilus

open access: yesScientific Reports, 2021
Assessing the taxonomic importance of the suture line in shelled cephalopods is a key to better understanding the diversity of this group in Earth history.
Amane Tajika   +2 more
doaj   +1 more source

Feeding spectrum of a dominant splash zone enchytraeid, Mesenchytraeus bungei Michaelsen, 1901 (Annelida: Oligochaeta), in Lake Baikal (East Siberia) [PDF]

open access: yesOpuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis, 2017
The first data on feeding spectrum of Baikal enchytraeids are given. Previously we found that Mesenchytraeus bungei Michaelsen, 1901 dominates in abundance in splash zone Oligochaeta community of Bolshie Koty Bay, Lake Baikal.
Zvereva, Yu. M., Timoshkin, O. A.
doaj   +1 more source

Invertebrate biomechanics [PDF]

open access: yesCurrent Biology, 2017
Invertebrate biomechanics focuses on mechanical analyses of non-vertebrate animals, which at root is no different in aim and technique from vertebrate biomechanics, or for that matter the biomechanics of plants and fungi. But invertebrates are special - they are fabulously diverse in form, habitat, and ecology and manage this without the use of hard ...
S N, Patek, A P, Summers
openaire   +2 more sources

Complete mitochondrial genomes of two sand diver species (Perciformes, Trichonotidae): novel gene orders and phylogenetic position within Gobiiformes

open access: yesMitochondrial DNA. Part B. Resources, 2022
The complete mitochondrial genome sequences of two species of the family Trichonotidae, Trichonotus elegans (Shimada and Yoshino ) and Trichonotus filamentosus (Steindachner ), were determined using a polymerase chain reaction-based method.
Takashi P. Satoh, Eri Katayama
doaj   +1 more source

A contribution to the Atherigona (Diptera, Muscidae) fauna of Angola [PDF]

open access: yesAfrican Invertebrates
This study lists a total of 13 species of Atherigona Rondani, 1856 from Angola, 9 of which were previously recorded: Atherigona (Atherigona) bedfordi van Emden, 1940; Atherigona (Atherigona) campestris Deeming, 1971; Atherigona (Acritochaeta) cogani ...
Mokome M. J. Magoai   +2 more
doaj   +3 more sources

Kangaraneus, a new genus of orb-weaving spider from Australia (Araneae, Araneidae) [PDF]

open access: yesZoosystematics and Evolution, 2023
A new Australian genus in the orb-weaving spider family Araneidae Clerck, 1757 is described, Kangaraneus gen. nov., with K. arenaceus (Keyserling, 1886) comb. nov. (New South Wales, Queensland, South Australia, Victoria and Western Australia) as the type
Pedro de S. Castanheira   +1 more
doaj   +3 more sources

Zoology: Invertebrates that Parasitize Invertebrates [PDF]

open access: yesCurrent Biology, 2016
The genome of an orthonectid, a group of highly modified parasitic invertebrates, is drastically reduced and compact, yet it shows the bilaterian gene toolkit. Phylogenetic analyses place the enigmatic orthonectids within Spiralia, although their exact placement remains uncertain.
openaire   +2 more sources

Identification of free amino acids (FAA) that are important as major intracellular osmolytes in the estuarine Hong Kong oyster, Crassostrea hongkongensis

open access: yesAquaculture Reports, 2023
Crassostrea hongkongensis (Hong Kong oyster), a commercially valuable bivalve thriving in the estuaries along the northern coast of the South China Sea, is threatened by the increase of salinity during the dry season. It is essential to improve its hyper-
Xinyu Song   +5 more
doaj   +1 more source

Deterrent activities in the crude lipophilic fractions of Antarctic benthic organisms: chemical defences against keystone predators [PDF]

open access: yesPolar Research, 2014
Generalist predation constitutes a driving force for the evolution of chemical defences. In the Antarctic benthos, asteroids and omnivore amphipods are keystone opportunistic predators.
Laura Núñez-Pons, Conxita Avila
doaj   +1 more source

Home - About - Disclaimer - Privacy