Monday, 24 February 2020
Sunday, 23 February 2020
2-8-2017 CENTRAL PARK, BUDAPEST - CLIPPER BUTTERFLY (Parthenos sylvia)
Parthenos sylvia, the clipper, is a species of nymphalid butterfly found in south and southeast Asia, mostly in forested areas. The clipper is a fast-flying butterfly and has a habit of flying with its wings flapping stiffly between the horizontal position and a few degrees below the horizontal. It may glide between spurts of flapping.
2-8-2017 BUDAPEST ZOO, HUNGARY - CENTRAL BEARDED DRAGON (Pogona vitticeps)
Central bearded dragons (Pogona vitticeps) are agamid lizards found in eastern and central Australia. They live in areas where food may be hard to find and need to bask in the sun to maintain elevated body temperatures.
Central bearded dragons vary widely in color, including brown, reddish-brown, red, yellow, white, and orange. They are capable of undergoing moderate changes in coloration, and scales along both sides of the throat, neck, and head form a row of narrow spines that runs down each side of the body to the tail. Males typically have a darker "beard" than females, and during mating season and courtship, it will typically darken to near-black. Bearded dragons, like most agamid lizards, have strong legs which enable them to lift their body completely off the ground while they move. This is done to reduce the heat taken in from the ground, as well as to increase the airflow over the belly to cool itself further. Males can be distinguished from females by a wider cloacal opening, a wider base of the tail, a larger head and beard, and the possession of hemipenes. Males also have more pronounced femoral pores than females (these can be seen as waxy bumps on the underside of the back legs).
Central bearded dragons are widely distributed over eastern and central parts of Australia, being found from the southeastern Northern Territory the eastern part of southern Australia. They live in very diverse habitats including deserts, dry forests, and scrublands. These dragons are semi-arboreal animals, often seen basking on picnic tables, fence posts, or fallen branches.
Normally, these animals are diurnal. Nevertheless, after hot days they can be frequently seen out on roads. The Central bearded dragon is an excellent climber, often found perched in bushes as well as on branches of trees and fence posts, spending as much time perching as it does on the ground. They are not social animals, though sometimes they congregate into groups to feed and bask. Gathering in groups, they follow a certain hierarchy: when basking, usually the highest-ranking individuals take the sunniest and highest spots and the rest of the group gets lower spots. Females often use their beards for aggression displays while males will display their beards during the mating season as a part of the courtship ritual. When feeling threatened, bearded dragons flatten their bodies against the ground, puff out their spiny throats, and open their jaws to make themselves appear larger.
Saturday, 22 February 2020
Friday, 21 February 2020
Thursday, 20 February 2020
2020 KAMCHATKA PENINSULA, RUSSIA - SIBERIAN BROWN BEAR (Ursus arctos ssp. beringianus) WEBCAM
The East Siberian brown bear (Ursus arctos collaris) is a population or subspecies of brown bear which ranges from eastern Siberia, beginning at the Yenisei river, north to the Arctic Circle, as far as Trans-Baikaliya, the Stanovoy Range, the Lena River, Kolyma and generally throughout Yakutia and the Altai Mountains. The subspecies is also present in northern Mongolia, northern Xinjiang, and eastern Kazakhstan.
East Siberian bears are intermediate in size to Eurasian brown bears and Kamchatka brown bears, though large individuals can attain the size of the latter. Their skulls are invariably larger than those of Eurasian brown bears and are apparently larger than those of Kamchatka brown bears.
Adult males have skulls measuring 32.6–43.1 cm (12.8–17.0 in) in length, and 31.2–38.5 cm (12.3–15.2 in) wide at the zygomatic arches. They have long, dense and soft fur which is similar in colour to that of Eurasian brown bears, though darker coloured individuals predominate.
Given the vast, wild, and virtually uninhabited territory which they inhabit, Siberian brown bears tend to be much less skittish with the presence of humans, as opposed to the Eurasian or some American brown bear subspecies. European brown bears, for example, as they inhabit a continental area far smaller than Siberia or Russia, are generally warier of people, as they are, more or less, persecuted and feared throughout their range. Both literally and figuratively, European bears are "surrounded" by humans and their dogs on all sides, on an already-cramped continent, a harsh reality which dictates their very movements and behaviours. Thus Siberian brown bears have no fear, and will readily destroy any vulnerable or unprotected food source, including hunters' outdoor food stores, and even homes or huts where there is any enticing scent, leading to potential human-bear confrontations.
20-2-2010 OLIVA CANAL LES FONTS, VALENCIA - RED EARED SLIDER TERRAPIN (Trachemys scripta ssp. elegans)
The red-eared slider or red-eared terrapin (Trachemys scripta elegans) is a subspecies of the pond slider (Trachemys scripta), a semiaquatic turtle belonging to the family Emydidae. It is the most popular pet turtle in the United States, is also popular as a pet across the rest of the world, and is the most invasive turtle. It is the most commonly traded turtle in the world.
The red-eared slider is native from the Midwestern United States to northern Mexico, but has become established in other places because of pet releases, and has become invasive in many areas where it outcompetes native species. The red-eared slider is included in the list of the world's 100 most invasive species.
Invasive red-eared sliders cause negative impacts in the ecosystems they are introduced to because they have certain advantages over the native populations, such as a lower age at maturity, higher fecundity rates, and larger body size, which gives them a competitive advantage at basking and nesting sites, as well as when exploiting food resources. They also transmit diseases and displace the other turtle species with which they compete for food and breeding space.
Owing to their popularity as pets, red-eared sliders have been released or escaped into the wild in many parts of the world. This turtle is considered one of the world's worst invasive species. Feral populations are now found in Bermuda, Canada, Australia, Europe, Great Britain, South Africa, the Caribbean Islands, Israel, Bahrain, the Mariana Islands, Guam, Russia, and south- and far-east Asia. Within Great Britain, red-eared sliders have a wide distribution throughout England, Scotland, and Wales.
In Australia, it is illegal for members of the public to import, keep, trade, or release red-eared sliders, as they are regarded as an invasive species – see below. Their import has also been banned by the European Union as well as specific EU member countries. In 2015, Japan announced it was planning to ban the import of red-eared sliders, but it would probably not take effect until 2020.
Red-eared sliders do not hibernate, but actually brumate; while they become less active, they do occasionally rise to the surface for food or air. Brumation can occur to varying degrees. In the wild, red-eared sliders brumate over the winter at the bottoms of ponds or shallow lakes. They generally become inactive in October, when temperatures fall below 10 °C (50 °F). During this time, the turtles enter a state of sopor, during which they do not eat or defecate, they remain nearly motionless, and the frequency of their breathing falls. Individuals usually brumate under water, but they have also been found under banks and rocks, and in hollow stumps. In warmer winter climates, they can become active and come to the surface for basking. When the temperature begins to drop again, however, they quickly return to a brumation state. Sliders generally come up for food in early March to as late as the end of April.
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