Search results for "ANIMALI"
showing 10 items of 289 documents
‘Dentro la Selva Ercinia’
2008
La digressione sulla Selva Ercinia (De bello Gallico VI, 26-29) è presa in esame da un punto di vista romano, piuttosto che germanico (anche perché Cesare aveva una limitata conoscenza della cultura germanica) e per quanto il suo contenuto può dire degli intendimenti di Cesare. I tre animali descritti (renna, alce, e uro) sono rappresentati secondo le regole del canone letterario e sono stati prescelti per la loro natura topica (e retorica) come emblemi della fauna settentrionale. Cesare vuole anche presentare al suo pubblico nuove specie di animali selvaggi come quelli apprezzati nei ludi circensi e che si potrebbero fare sfilare in un suo trionfo, insistendo al contempo sulla difficoltà/i…
Personalismo vs. animalismo: un argumento fenomenológico
2020
Se ha dado por sentado, a lo largo de los siglos, la superioridad de los seres humanos sobre la especie animal alegando a la racionalidad y la libertad que hace de las personas sujetos de derechos y deberes. No obstante, hoy en día, en el contexto de una cultura naturalista, surgen corrientes que ponen en duda esta supuesta “superioridad” de la raza humana respecto a la animal. El animalismo abre un debate al que hace falta atender. El presente artículo refleja los argumentos que se plantean desde las distintas voces animalistas y explica los planteamientos de orden fenomenológico y metafísico con los que se responde al movimiento de liberación animal desde un pensamiento humanista (y más e…
Calcification is not the Achilles'heel of cold-water corals in an acidifying ocean
2015
Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation (Omega ara) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we provide laboratory evidence that net (gross calcification minus dissolution) and gross calcification rates of three common cold-water corals, Caryophyllia smithii, Dendrophyllia cornigera, and Desmophyllum dianthus, are not affected by pCO2 levels expected for 2100 (pCO2 1058 µatm, Omega ara 1.29),…
Cetacea Cephalica. Circolazione encefalica,densità neuronale e sviluppo cranico nei delfini.
2008
Revision of the plant bug genus Xenocylapidius (Hemiptera, Heteroptera, Miridae, Cylapinae), with descriptions of five new species from Australia and…
2014
Abstract The genus Xenocylapidius Gorczyca, 1997 is revised. Five new species: Xenocylapidius acutipennis sp. n., Xenocylapidius ater sp. n., Xenocylapidius bimaculatus sp. n., Xenocylapidius gemellus sp. n., and Xenocylapidius rolandi sp. n. are described from Australia and New Caledonia. Illustrations of the male genitalia, color photographs of dorsal and lateral views of the adults of all species, and key to species of the genus Xenocylapidius are provided.
Tardigrades of Finland: new records and an annotated checklist
2020
Species checklists are powerful and important tools of communication between taxonomists and applied environmental biologists, which in turn lead to well-planned and successful conservation strategies and ecological studies. Despite this, only recently the interest on compiling systematic checklists is growing among taxonomists who study tardigrades—micrometazoans that inhabit almost every habitat worldwide. As the Finnish records of tardigrades (a.k.a. water bears) species are incomplete, outdated and no checklist has ever been compiled for this country, an easy-to-consult checklist is here reported. This checklist covers all Finnish tardigrade taxa identified in the past and in the 13 sam…
Ocean acidification affects fish spawning but not paternity at CO2 seeps
2016
Fish exhibit impaired sensory function and altered behaviour at levels of ocean acidification expected to occur owing to anthropogenic carbon dioxide emissions during this century. We provide the first evidence of the effects of ocean acidification on reproductive behaviour of fish in the wild. Satellite and sneaker male ocellated wrasse (Symphodus ocellatus) compete to fertilize eggs guarded by dominant nesting males. Key mating behaviours such as dominant male courtship and nest defence did not differ between sites with ambient versus elevated CO2 concentrations. Dominant males did, however, experience significantly lower rates of pair spawning at elevated CO2 levels. Despite the higher r…
Taxonomic Status of Neoechinorhynchus Agilis (Acanthocephala, Neoechinorhynchidae), with a Description of two New Species of the Genus from the Atlan…
2014
2 Section of Hydrobiont Diseases, Pacifi c Research. Fisheries Center, Shevchenko str., 4, Vladivostok, 690950 Russia Taxonomic Status of Neoechinorhynchus agilis (Acanthocephala, Neoechinorhynchidae), with a De- scription of Two New Species of the Genus from the Atlantic and Pacifi c Mullets (Teleostei, Mugili- dae). Tkach, Ie. V., Sarabeev, V. L., Shvetsova, L. S. — Th e wide variability in morphological features, geographical and host ranges of mullet acanthocephalan parasite Neoechinorhynchus agilis (Rudolphi, 1819), raises the question of taxonomic status of this species. Rudolphi's type and Yamagutis voucher specimens, as well as our own material from the WW Pacifi c and NE Atlantic r…
A taxonomic revision helps to clarify differences between the Atlantic invasive
2017
Abstract Ptilohyale explorator (formerly Parhyale explorator), described by Arresti (1989), can be considered to be a synonym of west-Atlantic Ptilohyale littoralis (Stimpson, 1853), based on morphological observations of paratypes and specimens recently collected in the type locality of Ptilohyale explorator. The first collections of Ptilohyale littoralis, from the eastern Atlantic were from the port of Rotterdam (The Netherlands) in 2009 and later in Wimereux, Opal Coast (France) in 2014; however, the synonymy of Ptilohyale explorator with Ptilohyale littoralis backdates to the first European record of Ptilohyale littoralis in 1985 at La Vigne, Bay of Arcachon (France). This indicates tha…
The last of the large-sized tortoises of the Mediterranean islands
2022
Altres ajuts: CERCA Programme/Generalitat de Catalunya Altres ajuts: Operational Programme Research, Development and Education Project (CZ.02.2.69/0.0/0.0/16_027/0008360) Archaeological investigations carried out in the cave Zubbio di Cozzo San Pietro, Bagheria, Sicily, revealed the presence of a few skeletal elements of a large-sized tortoise in a funerary area dating to the Copper/Bronze Age. The tortoise has been AMS-dated revealing an age of 12.5 ± 0.5 kyr BP and therefore it pre-dates the funerary activities. The morphology of the retrieved skeletal elements differs from that of the only native tortoise currently living in Sicily, Testudo hermanni. The tortoise's size significantly exc…