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Capricorn Silvereye
The Capricorn silvereye (''Zosterops lateralis chlorocephalus''), also known as the Capricorn white-eye or green-headed white-eye, is a small greenish bird in the Zosteropidae or white-eye family. It is a subspecies of the silvereye that occurs on islands off the coast of Queensland in north-eastern Australia, and which is sometimes considered to be a full species. Description The Capricorn silvereye is the only bird endemic to the Great Barrier Reef. It was first described by Archibald Campbell and Samuel White in ''The Emu'' from specimens collected during an expedition by the Royal Australasian Ornithologists Union to the Capricorn Group in October 1910. They wrote: ''Zosterops'' were numerous, and appeared to breed on the islands, judging by a few old nests. As at some of our more southern camps, it was delightful to listen to the subdued chorus of the birds' sweet warbling songs at daybreak. Regularly on Masthead they commenced to warble from 10 to 5 minutes before 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archibald James Campbell
Archibald James Campbell (18 February 1853 – 11 September 1929) was an Australian civil servant in the Victorian (later Australian) government Customs Service. However, his international reputation rests on his expertise as an amateur ornithologist, naturalist, and photographer. He was one of the principal founders of the Royal Australasian Ornithologists Union (RAOU) in 1901, and served as its President in 1909 and 1928. He was also a founder member of the Victorian Wattle Club in 1899 and the Bird Observers Club in 1905. Campbell was active in the Field Naturalists Club of Victoria from its inception in 1880, leading pioneering expeditions and writing for their journal. He wrote the classic field guide to oology (a branch of ornithology) in Australia: ''Nests and Eggs of Australian Birds'', published in 1901. Early life Campbell (the ornithologist) shared his personal names, Archibald James, with his father, so to avoid confusion the ornithologist will be referred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nidicolous
In biology, nidifugous ( , ) organisms are those that leave the nest shortly after hatching or birth. The term is derived from Latin ''nidus'' for "nest" and ''fugere'', meaning "to flee". The terminology is most often used to describe birds and was introduced by Lorenz Oken in 1816. The chicks of birds in many families, such as the waders, waterfowl, and gamebirds, are usually nidifugous. The opposite of nidifugous organisms are nidicolous ( ; from Latin ''nidus'' "nest" and ''-colus'' "inhabiting") organisms; a nidicolous organism is one which stays at its birthplace for a long time because it depends on its parents for food, protection, and the learning of survival skills. Examples of nidicolous species include mammals and many species of birds. During the life span, the brain of a nidicolous animal expands 8–10 times its initial size; in nidifugous animals, it expands from 1.5 to 2.5 times. Relation to precociality and altriciality Two other terms are also used by scientist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altricial
In biology, altricial species are those in which the young are underdeveloped at the time of birth, but with the aid of their parents mature after birth. Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. These categories form a continuum, without distinct gaps between them. Altriciality Etymology The word is derived from the Latin root ''alere'', meaning "to nurse, to rear, or to nourish" and indicates the need for young to be fed and taken care of for a long duration. By contrast, species whose young are immediately or quickly mobile are called ''precocial''. Precociality Etymology The word "precocial" is derived from the same root as ''precocious'', implying early maturity in both cases. Superprecociality Extremely precocial species are called "superprecocial". Examples are the megapode birds, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Impact On The Environment
Human impact on the environment (or anthropogenic impact) refers to changes to biophysical environments and to ecosystems, biodiversity, and natural resources caused directly or indirectly by humans. Modifying the environment to fit the needs of society is causing severe effects including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crisis, and ecological collapse. Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, overconsumption, overexploitation, pollution, and deforestation. Some of the problems, including global warming and biodiversity loss, have been proposed as representing catastrophic risks to the survival of the human species. The term ''anthropogenic'' designates an effect or object resulting from human activity. The term was first used in the technical sense by Russian geologist Alexey Pavlov, and it w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Territory (animal)
In ethology, territory is the sociographical area that an animal consistently defends against conspecific competition (or, occasionally, against animals of other species) using agonistic behaviors or (less commonly) real physical aggression. Animals that actively defend territories in this way are referred to as being territorial or displaying territorialism. Territoriality is only shown by a minority of species. More commonly, an individual or a group of animals occupies an area that it habitually uses but does not necessarily defend; this is called its home range. The home ranges of different groups of animals often overlap, and in these overlap areas the groups tend to avoid each other rather than seeking to confront and expel each other. Within the home range there may be a ''core area'' that no other individual group uses, but, again, this is as a result of avoidance. Function The ultimate function of animals inhabiting and defending a territory is to increase the indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliotropium Foertherianum
''Heliotropium arboreum'' is a species of flowering plant in the borage family, Boraginaceae. It is native to tropical Asia including southern China, Madagascar, northern Australia, and most of the atolls and high islands of Micronesia and Polynesia. Common names include velvetleaf soldierbush, tree heliotrope, veloutier, and octopus bush. It is a shrub or small tree typical of littoral zones reaching a height of , with a spread of about . Taxonomy Originally published as ''Tournefortia argentea'', it was transferred to ''Argusia argentea'', and remained under that name until recently. It was subsequently restored to the genus ''Tournefortia'' before being transferred into the genus ''Heliotropium'' under a new name in 2003. Uses Historically in the Maldives the leaves were often used as famine food. Wood The wood of ''H. arboreum'' is commonly used to make handicrafts, tools, and, in Polynesia, frames for swim goggles. Due to its availability, ''H. arboreum'' is used as fire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ficus Opposita
''Ficus opposita'' is one of several fig species commonly known as sandpaper figs. It is native to the Northern Territory and Queensland in Australia.Other common names include sweet sandpaper fig, sweet fig and the ambiguous "figwood" and "watery fig". It grows as either a shrub or small tree. As the figs ripen, their colour changes from green to yellow to reddish-brown and finally, to black. The fruit is edible and palatable, tastier than most other fig species. It serves as a food plant for the caterpillars of the Queensland butterfly the common- or purple moonbeam (''Philiris innotatus ''Philiris'' is a genus of butterflies in the family Lycaenidae. The species of this genus are found in the Australasian realm (New Guinea, Bismarck Islands, Molucca Islands and eastern Australia). ''Philiris'' was erected by Julius Röber in 189 ...''). The leaves on this plant can treat skin infections such as tinea. Shown to hybridise with ''Ficus coronulata''. References oppos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celtis Paniculata
''Celtis paniculata'', commonly known as tripewood, silky keltis, silky celtis, native hackberry, native celtis, Investigator tree or whitewood, is a rainforest tree native to parts of Malesia, Melanesia and Australia. Description The tree grows to tall and trunk width, though usually much smaller. The trunk is mostly cylindrical and somewhat buttressed at the base. The bark is thin, greyish brown and smooth, with pustular vertical lines. Leaves Leaves are elliptical in shape with a prominent leaf tip. Leaves are alternate and simple, smooth, not toothed, long with a pointed tip. The leaf stalk is somewhat channelled and flattened on the top, and in length. Both sides of the leaf are of a dull green shade. With a hand lens, translucent glands may be seen in the leaves. The base of the leaf is often oblique, that is of unequal length on either side of the leaf stem. Leaf venation is more evident under the leaf. An identifying feature is the intramarginal leaf vein, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casuarina Equisetifolia
''Casuarina equisetifolia'', common names ''Coastal She-oak'' or ''Horsetail She-oak'' (sometimes referred to as the Australian pine tree or whistling pine tree outside Australia), is a she-oak species of the genus ''Casuarina''. The native range extends throughout Southeast Asia, Northern Australia and the Pacific Islands; including Thailand, Myanmar, Vietnam, Malaysia, Singapore, Brunei, Indonesia, East Timor, and the Philippines (where it is known as agoho pine), east to Papua New Guinea, French Polynesia, New Caledonia, and Vanuatu, and south to Australia (north of Northern Territory, north and east Queensland, and north-eastern New South Wales). Populations are also found in Madagascar, but it is doubtful if this is within the native range of the species. The species has been introduced to the Southern United States and West Africa. It is an invasive species in Florida, South Africa, India and Brazil. Taxonomy ''Casuarina equisetifolia'' was officially described by Lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisonia Grandis
''Pisonia grandis'', the grand devil's-claws, is a species of flowering tree in the ''Bougainvillea'' family, Nyctaginaceae. Description The tree has broad, thin leaves, smooth bark and bears clusters of green sweet-smelling flowers that mature into sticky barbed seeds. Dispersal occurs when seeds stick to bird feathers. Vegetative reproduction frequently results when fallen branches sprout or basal shoots develop into new trees. Distribution ''Pisonia'' trees are distributed throughout the coral cays of the Indian and Pacific Oceans. The species often dominates mature coral cay vegetation, growing in dense, thick strands up to tall. ''Pisonia'' wood is rather weak and soft and decays rapidly when the trees fall. ''Pisonia'' forests are a common nesting site for seabirds. One of the best remaining ''Pisonia'' forests can be found on Palmyra Atoll. St. Pierre Island, Farquhar Group, was once covered by a ''Pisonia grandis'' forest. This forest disappeared after guano minin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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