Results 1 to 10 of about 642 (113)

A survey of aquatic macroinvertebrates in a river from the dry corridor of Nicaragua using biological indices and DNA barcoding. [PDF]

Ecol Evol, 2022
A survey of aquatic macroinvertebrates in Nicaragua using biological indices and DNA barcoding. We obtained excellent water quality in one site, high congruence between tree‐based and similarity‐based techniques, and reported 69–73 operational taxonomic units present in a river from the Central American Dry Corridor. Abstract Aquatic macroinvertebrates
Mendoza-Ramírez BH, Páiz-Medina L, Salvatierra-Suárez T, Hernández N, Huete-Pérez JA.   +4 more
europepmc   +2 more sources

The highly rearranged mitochondrial genomes of the crabs Maja crispata and Maja squinado (Majidae) and gene order evolution in Brachyura. [PDF]

Sci Rep, 2017
We sequenced the mitochondrial genomes of the spider crabs Maja crispata and Maja squinado (Majidae, Brachyura). Both genomes contain the whole set of 37 genes characteristic of Bilaterian genomes, encoded on both \u3b1- and \u3b2-strands.
Basso A, Babbucci M, Pauletto M, Riginella E, Patarnello T, Negrisolo E.   +5 more
europepmc   +3 more sources

Crab in amber reveals an early colonization of nonmarine environments during the Cretaceous. [PDF]

Sci Adv, 2021
Amber fossils provide snapshots of the anatomy, biology, and ecology of extinct organisms that are otherwise inaccessible. The best-known fossils in amber are terrestrial arthropods—principally insects—whereas aquatic organisms are rarely represented ...
Luque J, Xing L, Briggs DEG, Clark EG, Duque A, Hui J, Mai H, McKellar RC.   +7 more
europepmc   +4 more sources

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

Biological Reviews, Volume 98, Issue 3, Page 942-981, June 2023., 2023
ABSTRACT 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.
Leonidas‐Romanos Davranoglou, Graham K. Taylor, Beth Mortimer   +2 more
wiley   +1 more source

Una nueva especie de Temnocephala (Platyhelminthes, Temnocephalida) en cangrejos montanos de Tolima, Colombia [PDF]

, 2020
Temnocephala icononcensis n.sp. an ectosymbiont on several species of montane Pseudothelphusidae crabs such as, Hypolobocera bouvieri, Phallangothelphusa dispar and Strengeriana cajenensis, is described from brooks and small streams in the mountains of ...
Arias Pineda, Julián Yessid, Castro Avellaneda, José Joaquín, Damborenea, María Cristina   +2 more
core   +4 more sources

Feeding spectra and activity of the freshwater crab Trichodactylus kensleyi (Decapoda: Brachyura: Trichodactylidae) at La Plata basin [PDF]

, 2014
Background: In inland water systems, it is important to characterize the trophic links in order to identify the ‘trophic species’ and, from the studies of functional diversity, understand the dynamics of matter and energy in these environments.
A Ruttner-Kolisko, AA Bonetto, AH Beltzer, AH Beltzer, AH Beltzer, B Hepher, BL Zimmermann, C Magalhães, C Sokolowicz, CE Cushing, CG Vélez, CP Balasubramanian, CS Pontes, DA Carvalho, DA Carvalho, DA Carvalho, E Massoia, EC Lopretto, ED Burress, F Fernandez de Miguel, FL Zilli, FLM Mantelatto, FLM Mantelatto, G Mancinelli, G Woodward, GAS Melo, H Aréchiga, HJ Dumont, I Ezcurra de Drago, I Nordhaus, II César, IJ McGaw, J Aguzzi, J Freire, J Josileen, JD Icely, JG Irons, JH Zar, JJ Bianchini, JJ Neiff, K Cheshire, KD Colpo, L Pinkas, LA López, M Devercelli, M Dobson, M Zimmer, MG Frick, N Kronfeld-Schor, N Lo, N Myers, P Kratina, PA Collins, PA Collins, PA Collins, PA Collins, R Pirela, RC Lajmanovich, RG Wear, RK Colwell, S Cannicci, S Daan, SM Linton, SM Linton, SP Hart, V Williner, V Williner, V Williner, WF Edmonson, WJ Mattson, ZT Long   +70 more
core   +1 more source

The spermatozoon of Calocarcinus africanus (Heterotremata, Brachyura, Crustacea) : ultrastructural synapomorphies with xanthid sperm [PDF]

, 1993
Features of the spermatozoon of #Calocarcinus africanus$ which are general for heterotremes and endorse its inclusion in the Heterotremata are : extension of the subacrosomal chamber almost to the anterior apex of the sperm, presence of an acrosome ray ...
Guinot, D., Jamieson, B.G.M., Richer de Forges, Bertrand   +2 more
core   +1 more source

New records of Trichodactylus fluviatilis Latreille, 1828 (Decapoda: Brachyura: Trichodactylidae) in Southeastern Brazil [PDF]

, 2023
Freshwater crabs play important ecological roles in lotic ecosystems, occupying different trophic levels and participating in the detritus food chain.
Entringer Júnior, Hilton, Silva Cavaca, Hugo, Srbek Araujo, Ana Carolina   +2 more
core   +1 more source

Growling from the gut: co-option of the gastric mill for acoustic communication in ghost crabs. [PDF]

, 2019
Animal acoustic communication systems can be built upon co-opted structures that become specialized for sound production or morphological novelties. The ghost crab, Ocypode quadrata, evolved a novel stridulation apparatus on the claws that is used during
deVries, Maya S, Elias, Damian O, Taylor, Jennifer RA   +2 more
core   +1 more source

Population Structure of the Freshwater Crab Potamon algeriense (Bott, 1967) Inhabiting Oued Zegzel, (Northeast of Morocco)

International Journal of Ecology, Volume 2019, Issue 1, 2019., 2019
This is the first study to determine the population structure of the freshwater crab Potamon algeriense in Oued Zegzel, a mountain stream in the northeast of Morocco. Monthly collections were carried out by hand, from October 2017 to September 2018. A total of 669 individuals, 378 males and 291 females, were captured, measured, marked, and released ...
Soufiane Fadlaoui, Mohammed Melhaoui, Daniel I. Rubenstein   +2 more
wiley   +1 more source