Hypogeum of the Aurelii

kacaii.dev/possum-tangled

🐑 Possum submodule targeting the Tangled API

Holobiont

A holobiont is an assemblage of a host and the many other species living in or around it, which together form a discrete ecological unit through symbiosis, though there is controversy over this discreteness. The components of a holobiont are individual species or bionts, while the combined genome of all bionts is the hologenome. The holobiont concept was initially introduced by the German theoretical biologist Adolf Meyer-Abich in 1943, and then apparently independently by Dr. Lynn Margulis in her 1991 book Symbiosis as a Source of Evolutionary Innovation. The concept has evolved since the original formulations. Holobionts include the host, virome, microbiome, and any other organisms which contribute in some way to the functioning of the whole. Well-studied holobionts include reef-building corals and humans.

Sarmizegetusa Regia

Sarmizegetusa Regia was the capital and the most important military, religious and political centre of the Dacians before the wars with the Roman Empire. Built on top of a 1200 m high mountain, the fortress, consisting of six citadels, was the core of a strategic and defensive system in the Orăștie Mountains. The archaeological site of Sarmizegetusa Regia is located in the village of Grădiștea de Munte in Hunedoara County.

Après 20 ans sans décès, l'alerte relancée autour des morsures de serpents

Un jardinier est décédé des suites d'une morsure de trigonocéphale alors qu'il entretenait les espaces verts d'une maison située au quartier Terreville, à Schœlcher....

Chondrilla nucula (Porifera, Demospongiae) : an example of successful plasticity ; ecological and morphological aspects

Sponges (Porifera) represent an important component of the Mediterranean sessile benthic community. They are present both in shallow and deeper waters, on soft and hard bottoms and some species, namely the bath sponges, has an application in human life since a long time. In the last few decades, they also assumed an importance among the organisms producing bioactive compounds which application goes from the homeopathy to the classical medicine to the industry. The study of the taxonomy, ecology and biology of sponges has an history hundreds years old. Now, due to the new findings that render sponges an exploitable marine resource, a coupling of the traditional sciences with the new emerging applications (biotechnology) is urgently needed. The Northern Adriatic Sea was the craddle of the sponge science hosting 36% of the sponge species present in the whole Mediterranean Sea. For the present work, the sponge fauna of a channel-like bay called Limski kanal (Croatia) has been intensively studied for the first time and a list of sponges, including species new for this area, is the result of a series of surveys in twelve sampling sites along the channel. As an introduction to the classification of sponges, a guide to the identification of the most common Mediterranean species has been written and included. A study on the temporal dynamic of a sponge community (Limski kanal, Croatia) was made by using fixed frames that have been photographed along a period of two years. Either seasonality, morphological variability, growth and degeneration phenomena have been observed, providing one more evidence of the incredible plasticity of the Porifera. Among the species in the Limski kanal, Chondrilla nucula (Porifera, Demospongiae) has been chosen as model organism. Firstly, its distribution, abundance and average coverage have been studied, showing that this species is very common along the channel, also in areas with a high sedimentation. Its distribution pattern depends mainly on light availability and kind of substrate. C. nucula is known as a very plastic species: here some macromorphological aspects related to the locomotion, the fragmentation events, the elimination of the sediment and the epibiosis are described in the attempt to give an overview on the successful life strategies of this sponge. Up to now only morphological studies on the oogenesis and spermatogenesis are available but the complete life cycle is unknown. In this study, macromorphological variations in specimens of C. nucula in reproduction and the first stages of embryogenesis have been described for the first time. Finally, in view of a biotechnological use of sponges as bioremediator organisms, the filtration and the bacterial retention rates of C. nucula have been investigated using clearance tests. In spite of a low filtration rate, the sponge showed high bacterial retention rates. This, together with the easy techniques required to farm it, makes of this sponge an eligible candidate for bioremediation. To achieve an effective conservation management plan and a sustainable exploitation of the marine resources, the knowledge on the biological and ecological characteristics of the benthic community and of the single species is absolutely necessary.

phylo — Mammalia — minomobi

phylo — Mammalia — minomobi

Center Guest House - Auroville Guest Houses

Center Guest House One of the oldest and largest guest house in Auroville, centrally located, it has a variety of rooms to offer. Center Guest House has a quaint ambiance with all its greenery and friendly atmosphere. PHOTO GALLERY FACILITIES & SERVICES Internet: Yes Comfort range: B – standard C – good To Matrimandir: 0.5 […]

The Corals That Shouldn’t Exist - bioGraphic

Beneath Miami’s skyscrapers, a colony of corals defies expectations—and offers insight into other undersea urban ecosystems.

Dacian draco

The Dacian draco was a military standard used by troops of the ancient Dacian people, which can be seen in the hands of the soldiers of Decebalus in several scenes depicted on Trajan's Column in Rome, Italy. This wind instrument has the form of a dragon with open wolf-like jaws containing several metal tongues. The hollow dragon's head was mounted on a pole with a fabric tube affixed at the rear. In use, the draco was held up into the wind, or above the head of a horseman, where it filled with air and gave the impression it was alive while making a shrill sound as the wind passed through its strips of material. The Dacian draco likely influenced the development of the similar Roman draco.

Auroville

Auroville is an experimental township in Viluppuram district, mostly in the state of Tamil Nadu, India, with some parts in the Union Territory of Puducherry in India. It was founded in 1968 by Mirra Alfassa and designed by architect Roger Anger.