Endangered species referat

Endangered Species

In 1994, six more Minnesota peregrines were released from a hacking station atop the TCBY Tower in Little Rock, Arkansas's tallest building. It is hoped the relocated falcons will imprint on their new homeland and return to nest on permanent structures built for their use. Reintroductions like these have worked successfully in many other parts of the U.S., thanks in part to falconers who have raised thousands of peregrines in captivity for eventual release.

Although peregrines live on every continent except Antarctica, they are always rare. In Arkansas, they're most likely to be seen from mid-September through mid-May in southern lowlands.
The peregrine's recent history holds a cautionary tale. In the 1950s and '60s, these magnificent birds were nearly wiped out when their food chain was contaminated with pesticides, primarily DDT. All 275 known nesting sites in the eastern U. S. were deserted by 1964. To our good fortune, however, they were saved from extinction. There are now more ...

Nivel: Facultate
Dimensiune: 106kb
Downloads: 2517
Materia: Engleza

Fish

The bony fishes encompass by far the largest diversity of fish, with about 24,000 species inhabiting nearly every body of water on the earth. They are divided into two groups—the lobe-finned fish and the ray-finned fish. Lobe-finned fishes include the lungfish, a small group of primitive air-breathing fish, and the coelacanth, the single living species of a group long thought to be extinct.

Alte referate despre: tehnica fish, fish, metoda fish

Panda Bear

One of the main characteristics is the “second thumb” which is present on each pad. These suplimentar fingers descend from the joint, and they have an important port in catching the food.

Alte referate despre: panda bear, the panda bear, about panda bear

Romania

A Population and Settlement
At the 1992 census, Romania had a population of 22,760,449. The 2002 estimated population is 22,317,730, yielding an average population density of 94 persons per sq km (243 per sq mi). The population is 56 percent urban.
B Principal Cities
Bucharest, the capital and largest city of Romania, is the commercial and industrial center of the country. Other major cities include Constanţa, the principal Romanian port on the Black Sea; Iaşi, a cultural and manufacturing center; Timişoara, a textile, machinery, and chemical manufacturing center; Cluj-Napoca, a commercial and industrial center; Galaţi, a naval and metallurgical center; Braşov, a transportation and industrial center; and Craiova, a center of food processing and locomotive manufacturing.
C Ethnic Origins
Ethnic Romanians, who constitute about 89 percent of the population, are descendants of the inhabitants of Dacia, an ancient land roughly equivalent to modern Transylvania and Walachia. ...

Alte referate despre:

Should animals be kept in cages or hunted?

For example, having a house near by a forest, the great danger would be when the hungry, wild animals could attack the children and the other house animals. Another point is that hunting and than stuffing them is a really good fun for some people. By this, I mean that for some hunters stuffing animals is a hobby, because they like having their walls decorated with animals heads and they organize a competition where the winner is that one that has the most stuffed animal’s organs.

Alte referate despre: should animals be kept in cages, should animals be kept in cages essays, should animals be hunted

Piranha

All rights reserved.
Piranha.There are at least two dozen species of South American tropical rain forest fish that are grouped together under the name of piranha. Ranging in size from under 15 cm (6 in) to nearly 60 cm (24 in), the piranha is perhaps the most feared of all fish in the rain forest due to the razor-sharp teeth along the leading edge of both jaws. Although some species are strictly carnivorous, not all are considered dangerous to man.

Alte referate despre: pesti piranha, piranha referat, piranha

The birds of the Danube Delta

According to their geographical origin, the delta birds contain the following types: arctic species (27); Siberian (32); European (108); Mediterranean (29); Mongolian (33); Chinese (2). The transpalearctic type contains 43 species.

Alte referate despre: the birds of the danube delta, danube delta, the danube delta

Birds

Wood Duck
The wood duck, Aix sponsa, lives in a variety of freshwater habitats in Canada, the United States, and Mexico. It often swims in shallow water, foraging for the seeds of aquatic plants. Like other ducks, the wood duck has webbed toes that function as paddles.

Alte referate despre: birds, rolul onu fmi birds in economia mondiala, birds in danger

Animals in danger

The main reasons for its disappearance are the damage of her living areas, the killing by the fishermen because of the damages she does to their nets, the luck of food and the pollution of the sea.

Alte referate despre: animals in danger, animals in danger of extinction, animals in danger referat

Forest

Trees also serve as temporary repositories for mineral nutrients in ecosystems; these nutrients accumulate in tree roots and thus are not easily washed away. Natural or human destruction of forests alters the nutrient cycles, especially in the case of the nitrogen cycle, where plants play a substantial role. Regrowth of young forests may increase the nitrogen added to the ecosystem. Trees take up the nutrients they need from the soil and from dead organic matter with the assistance of mycorrhizae (fungi that grow symbiotically on tree roots, obtaining food from the tree).

Alte referate despre: forest, a night in the forest, forest means life

Favourite mean of transport

Firstly,bike can succesfully fulfill my daily needs.I don’t live so far from school so using the bike i could reach in time for the classes’ beggining.Secondly,I have a “green” way of thinking.I try to protect the nature or at least not to harm it more so that the bike appear like a perfect way to protect the environment.It is a perfectly safe mean of transport that help people not to endanger anymore our green world. For those who live in aglomerated cities, the bike is perfect to escape from agglomeration.One don’t need much spce to ride a bike and it can easily to steal out between agglomeratin sparing one from the stress to wait.

Alte referate despre: favourite mean of transport, my favourite mean of transport, which is your favourite mean of transport

The Grand Canion

Although its awesome grandeur and beauty are the major attractions of the Grand Canyon, perhaps its most vital and valuable aspect lies in the time scale of Earth history that is revealed in the exposed rocks of the canyon walls. No other place on Earth compares with the Grand Canyon for its extensive and profound record of geologic events. The canyon's record, however, is far from continuous and complete. There are immense time gaps; many millions of years are unaccounted for by gaps in the strata in which either vast quantities of Earth materials were removed by erosion or there was little or no deposition of Earth materials. Thus rock formations of vastly different ages are separated only by a thin, distinct surface that reveals the vast unconformity in time.

Alte referate despre: grand canion, the grand canion, imagini grand canion

Beauty spots

The Danube Delta is one, in Europe unique landscape which distinguishes itself by the indescribable wealth of animal species and botanical species which can be found here.

Alte referate despre: black beauty rezumat, rezumat black beauty, black beauty

Incidenta si terapia in sindromul diareic cu etiologie parazitara la caini si pisici

The determination of the polyfactorial aetiology of the diarrhoeic syndrome requires the identification of the endoparasites species in laboratory. Minnaarn W.N. et al. (8) investigated 164 pet dogs and reported 88% incidence of infestation with Ancylostoma caninum, 36% with Toxocara canis, 9% with Toxascaris leonina and 6% with Trichocephalus vulpis.

Alte referate despre: sindromul diareic cu etiologie parazitara la carnivore, sindromul diareic in bolile infecto-contagioase, boli infecto contaginoase sindrom diareic

Malini village

The commune of Malini covers a surface of approximately 20 km2 and it comprises: Malini (the seat of the commune), Paraia, Suha, Poiana Marului, Valeni Stanisoara, Iesle, with a total population of about 7,400 inhabitants.

Alte referate despre: mon village, my village, village
Referate afisate : 15
Medie note: 8.51 / 10
Nota explicativa
Referatele si lucrarile oferite de Referate.ro au scop educativ si orientativ pentru cercetare academica.

Iti recomandam ca referatele pe care le downloadezi de pe site sa le utilizezi doar ca sursa de inspiratie sau ca resurse educationale pentru conceperea unui referat nou, propriu si original.

Referat.ro te invata cum sa faci o lucrare de nota 10!
Linkuri utile
Programeaza-te online la salonul favorit Descarca gratuit aplicatiile pentru iOS si Android Filmulete haioase Filme, poante si cele mai tari faze Jocuri Cele mai tari jocuri de pe net Referate scoala Resurse, lucrari, referate materiale pentru lucrari de nota 10
Toate imaginile, textele sau alte materiale prezentate pe site sunt proprietatea referat.ro fiind interzisa reproducerea integrala sau partiala a continutului acestui site pe alte siteuri sau in orice alta forma fara acordul scris al referat.ro. Va rugam sa consultati Termenii si conditiile de utilizare a site-ului. Informati-va despre Politica de confidentialitate. Daca aveti intrebari sau sugestii care pot ajuta la dezvoltarea site-ului va rugam sa ne scrieti la adresa webmaster@referat.ro.
Confidentialitatea ta este importanta pentru noi

Referat.ro utilizeaza fisiere de tip cookie pentru a personaliza si imbunatati experienta ta pe Website-ul nostru. Te informam ca ne-am actualizat politica de confidentialitate pentru a integra cele mai recente modificari privind protectia persoanelor fizice in ceea ce priveste prelucrarea datelor cu caracter personal. Inainte de a continua navigarea pe Website-ul nostru te rugam sa aloci timpul necesar pentru a citi si intelege continutul Politicii de Cookie. Prin continuarea navigarii pe Website-ul nostru confirmi acceptarea utilizarii fisierelor de tip cookie conform Politicii de Cookie. Nu uita totusi ca poti modifica in orice moment setarile acestor fisiere cookie urmarind instructiunile din Politica de Cookie.


Politica de Cookie
Am inteles