Vajad kellegagi rääkida?
Küsi julgelt abi LasteAbi
Logi sisse

Tundra swans (0)

1 Hindamata
Punktid
Tundra swans 
 
 
Tundra swans
● Whooper  swan ,  
Bewick´s swan and 
mute  swan
(laululuik, väikeluik, 
kühmnokk -luik)
 
 
Whooper swan

Large white swan (bigger  than  bewick)

Lenght  – 140 to 165 cm

Deep  honking  call  and powerfull fliers

Require  large  areas  to live in

Adult   birds  –  feathers  entirely white,  black   feet , mostly 
black bil  

Pens  (females) –  slightly  smaller than cobs ( males )

Immatures – white mixed with some dull grey 
feathering; bills – black, large  dirty -pink  patch

In Estonia  first  nesting - 1979
 
 
Whooper swan 
 
 
Behaviour of whooper swan
●  Pair for life, cygnets  stay with  them  all the 
winter
● Breffered breeding  habitat  – wetlands
● Both  build  the  nest
● Male will stand guard over the nest while  
female  incubates
● 4 to 7  eggs
 
 
 
Influence of whooper swan
● Much admired in  Europe
● National bird  of Finland
●  Protected  species in Estonia
 
 
Spread 
 
 
Bewick´s swan (väikeluik)

Lenght 115 to 140 cm

Adults – white all over

Young birds – greyish with a pinkish  bill

Shorter neck, variable bill pattern

Showing more black than  yellow

Bill is more yellow than black

Europe,  AsiaNorth  America

Resambles more of a goose than swan

Estonia – one of the main transit  regions  for migrating 
 
 

Most numerous migratory swan in Estonia
Mute swan (kühmnokk-luik)
● Large swan typically range from 140 to 160 cm
● Males larger than females and have a larger 
knob on their bill
● One of the heaviest flying bird
● Young birds, called cygnest, are not the  bright  
whiteof mature adults, and their bill is dull 
greyish-black (not orange for the first year)
 
 
Mute swan
 
 
 
 
Finding food underwater
 
 
Behaviour

Nest on large mounds 

Monogamous, reuse the  same  nest each year

Food commonly includes agricultural crop plant – 
oilseed  rape,  wheat

Feeding flocks in the winter may  cause  significant crop 
damage 

Less vocal than the noisy whooper and Bewic´s swan

Can be  aggressive  in defence of their nests
 
 
Breeding
● Lay an  average  of four  eggs
● Female broods for 36  days
● The cygnets do not reach  the  ability  of flight 
before  an age of 120 to 150 days
 
 
Distribution and habitat
● Found naturally mainly in temperate areas of 
Europe across  western  Asia 
● Partically migratory  throughout northern 
latitudes in Europe and Asia, as far south   as 
north  Africa  and the Mediterrranean
● Also  founded in Iceland
 
 
Distribution of tundra swan
● Difficult to differentiate
● Breeds in the  Arctic , subarctic tundra
● Inhabit – shallow  pools,  lakes and  rivers
● Migratory birds
● The breeding range extends across the  coastal  
lowlands of Siberia to the  Pacific
● Start to  arrive   around  mid-May, leave for winter 
the end of September
 
 
Ecology of tundra swans
● In  summer  – aquatic vegetation – mannagrass, 
pondweeds, marine eelgrass 
● Also eat some  grass  on dry  land , leftover grains  
and oteher crops 
● Breeding season – tend  to be territorial and 
agressive
● Few natural predators –  brown  bears, foxes
 
 
Reproduction
● Mate in the  late  springs 
● Pair monogamously  until one  partner dies
● Nesting season starts at the end of the May
● The pair build  the large mound-shaped nest 
from plant material at an elevant site  near open  
water
 
 
Conservation  status
● Most common swan species of North America
● Tundra swan  numbers are stable over most of 
its range, but they are increasingly depent on 
agricultural crops to  supplement  teir winter diet
● The tundra swan is not considered  threatened 
by the IUCN due to its large range and 
population
● Bewick's swan is one of the birds to which the 
Agreement on the Conservation of African-
Eurasian Migratory Waterbirds (AEWA) applies.
 
 
Mating system
● Breed from late May  through  late  June
● Nests – composed of moss, dead leaves, 
grasses; built in late May ( diameter  122 to 183 
cm)
● Can range 3 to 7 eggs
● Incubation period – 31 to 33 days
● Leave their nests immidiately
 
 
Lifespan/Longevity
● Longest known  – 24,1 years old (in  wild )
● Expcted lifespan – 15 to 20
● In captivity – 20 to 25
 
 
Food
● Herbivorous
● Consume plants 
●  Focus  on the flowers, stems,  roots , tubers
●  Feed  by dipping their heads underwater
 
 
Economic  importance of human

Feathers can be used for coats, pillows, 
blankets, mattresses, winter clothing

Their excrement can be used as a fertilizer to 
help with crop and grass growth

Also hunted for meat

Very territorial; will violently peck when they  feel  
threatened 

Crop pests 

Carry avian  influenza  – linnu  gripp
 
 
Ecosystem roles
● Host several parasites – heartworms, guinea 
worms , gizzard worms, avian  malaria
● Have mutualistic relationship with sago 
pondweed - penikeel
● Use pondweed as a food source during 
migration ; disperse pondweed, causing its 
population to expend
 
 
References

http://www.eestiloodus.ee/artikkel1838_1806.html (KIK 
2007:1)

https://www.rspb.org.uk/discoverandenjoynature/disc
overandlearn/birdguide/name/b/bewicksswan/
(rspb 2015:1)

https://en.wikipedia.org/wiki/Tundra_swan  (Wikipedia 
2016 :1)

https://en.wikipedia.org/wiki/Whooper_swan 
(Wikipedia  2016 :1)

https://en.wikipedia.org/wiki/Mute_swan  (Wikipedia 
2016:1)
 
 

http://animaldiversity.org/accounts/Cygnus_columbianu
s/
 (ADW 2014:1)

Document Outline

  • Slide 1
  • Slide 2
  • Slide 3
  • Slide 4
  • Slide 5
  • Slide 6
  • Slide 7
  • Slide 8
  • Slide 9
  • Slide 10
  • Slide 11
  • Slide 12
  • Slide 13
  • Slide 14
  • Slide 15
  • Slide 16
  • Slide 17
  • Slide 18
  • Slide 19
  • Slide 20
  • Slide 21
  • Slide 22
  • Slide 23
  • Slide 24
  • Slide 25
Vasakule Paremale
Tundra swans #1 Tundra swans #2 Tundra swans #3 Tundra swans #4 Tundra swans #5 Tundra swans #6 Tundra swans #7 Tundra swans #8 Tundra swans #9 Tundra swans #10 Tundra swans #11 Tundra swans #12 Tundra swans #13 Tundra swans #14 Tundra swans #15 Tundra swans #16 Tundra swans #17 Tundra swans #18 Tundra swans #19 Tundra swans #20 Tundra swans #21 Tundra swans #22 Tundra swans #23 Tundra swans #24 Tundra swans #25
Punktid 50 punkti Autor soovib selle materjali allalaadimise eest saada 50 punkti.
Leheküljed ~ 25 lehte Lehekülgede arv dokumendis
Aeg2016-05-17 Kuupäev, millal dokument üles laeti
Allalaadimisi 2 laadimist Kokku alla laetud
Kommentaarid 0 arvamust Teiste kasutajate poolt lisatud kommentaarid
Autor liiliaveerik Õppematerjali autor

Kasutatud allikad

Sarnased õppematerjalid

Finland
11
odt

Finland

and frog species present today, many migrating from neighbouring countries thousands of years ago. Large and widely recognised wildlife mammals found in Finland are the Brown Bear (the national animal), Gray Wolf, elk and reindeer. Other common mammals include the Red Fox, Red Squirrel, and Mountain Hare. Some rare and exotic species include the flying squirrel, Saimaa Ringed Seal and the Arctic fox, which is considered the most endangered. The Whooper Swan, the national bird of Finland, is a large Northern Hemisphere swan. The most common breeding birds are the Willow Warbler, Chaffinch and Redwing. Of some seventy species of freshwater fish, the northern pike, perch and others are plentiful. Salmon remains the favorite of fly rod enthusiasts. The endangered Saimaa Ringed Seal, one of only three lake seal species in the world, exists only in the Saimaa lake system of southeastern Finland, down to only 300 seals today. It has

Majandus
Sunflower
31
doc

Sunflower

The sunflower (Helianthus annuus) is an annual(iga aastane) plant in the family Asteraceae, with a large flower head (inflorescence(õiekobar, õisik, õitseaeg, õidumine)). The stem(tüvi) of the flower can grow up to 3 metres tall, with the flower head reaching 30 cm in diameter. The term "sunflower" is also used to refer(nimetama, viitama, üle andma) to all plants of the genus(perekond, sugu) Helianthus, many of which are perennial(alaline, aastaringne) plants. What is usually called the flower is actually a head (formally(ametlikult) composite(liit-, komposiit- ; korvõieline, komposiit) flower) of numerous flowers (florets) crowded(täistuubitud, tunglev, rahvarohke) together. The outer flowers are the ray florets(pähik (õisiku osa) and can be yellow, maroon, orange, or other colors, and are sterile(steriilne, viljatu). The florets inside the circular head are called disc florets. Sunflower head displaying florets in spirals of 34 and 55 around the outside The florets wi

Ökoloogia ja keskkonnakaitse1
Natural zones and flora of Australia
2
doc

Natural zones and flora of Australia

There are more than eight hundred kinds of birds in Australia. The emu, which is two metres tall, is the second largest bird in the world.It cannot fly at all, but it can run at fifty kilometres an hour. Then there is the kookaburra,whose cry sounds like someone laughing, and the budgerigar,a little blue or yellow bird that people keep in their homes all over the world. The lyrebird has got its name from the lyre-like tail of the he-bird.He can imitate all kinds of noises. The black swan is also found in Australia only. Many bright coloured parrots, birds of paradise and other colourful birds live in Australian forests. Ordinary mammals are few in Australia.The dingo is a wolflike dog that is believed to have come to Australia with some of the groups of Aboriginal people sometime between 3,500 and 4000 years ago.The dingo is a menace to the local cattle-breeders.The dingo is a very social animal and they live in large family groups

Inglisekeelne geograafia
Tundra loomad
2
pdf

Tundra loomad

These North American reindeer became known as caribou. Although they are called by different names, they are both considered to be a single species. Unlike deer, both the male and female have antlers. The antlers of the male are long, branched and massive, and they are a little flattened at the ends. The antlers of the female are much shorter, simpler and more slender and irregular. Their large, spreading hooves support the animal in snow in the winter and marshy tundra in the summer. Reindeer are also great swimmers and use their feet as paddles. They can also lower their metabolic rate and go into a semi-hibernation when conditions get very harsh. When it looks like there is nothing to eat on the winter tundra, reindeer will scrape the snow away with their wide feet or antlers and eat lichens, dried sedges and small shrubs. In the summer they the will eat leaves of willows, sedges, flowering plants, mushrooms.

Inglisekeelne geograafia
Introducing Red Grouse Scoticus-Lagopus Lagopus scotica-
10
ppt

Introducing Red Grouse Scoticus (Lagopus Lagopus scotica )

Introducing Red Grouse Scoticus(Lagopus Lagopus scotica ) Evelyn Landing Red grouse scoticus: medium-sized bird found in heather moorland in Great Britain and Ireland usually classified as a subspecies of the Willow Ptarmigan but is sometimes considered to be a separate species moorfowl or moorbird Description plumage being reddish brown, and not having a white winter plumage tail is black and the legs are white white stripes on the underwing red combs over the eye young birds are duller and lack the red combs Habitat Red Grouse is endemic to the British Isles The British population is estimated at about 250,000 pairs with around 1­5,000 pairs in Ireland Pretators like Hen Harrier, foxes and sometimes dogs hunt them. What they eat? The Red Grouse is herbivorous and feeds mainly on the shoots, seeds and flowers of heather. It will also fee

Inglise keel
Estonia
5
doc

Estonia

The most important rivers are the Pärnu River and the Emajõgi River. Estonia has more than 1 500islands. The largest of these is Saaremaa,. Saaremaa is followed in size by Hiiumaa, Muhu and Vormsi. The islands and the coastal areas of the mainland are interesting owing to the fact that they are on the migratory route for waterfowl. Twice a year - in the spring and autumn - several hundreds of thousands of birds are visitors in Estonia. The barnacle goose, the swan, the eider plus many more are protected species. The mild sea climate and the rather level landscape of the island, makes Saaremaa an area abundant in flora and fauna. Rare and beautiful species of orchids can be found in many places, and a large number of rare animals including seals live there. Tallinnis the capital and largest city of Estonia. Tallinn is the oldest capital city in Northern Europe Tartu is the second largest city of Estonia. Tartu is often considered the intellectual and

Inglise keel
Tundra
2
pdf

Tundra

Tundra Tundra is the world's youngest biome. It was formed 10 000 years ago. Located at latitudes 55° to 70° North. Almost all tundras are located in the Northern Hemisphere, encircling arctic desert and extending south to the coniferous forests of the taiga. The ecotone (ecological boundary region) between the tundra and the forest is known as the tree line or timberline. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-moulded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation.

Inglisekeelne geograafia
Topic – Australia
10
doc

Topic – Australia

Perth is the capital of the Australian state of Western Australia. A population of 1,477,800 makes Perth the largest city in Western Australia and home to threequarters of the state's residents. The city is also the fourth most populous urban area in Australia. The metropolitan area is located in the south west of the continent between the Indian Ocean and a low coastal escarpment known as the Darling Range. The central business district and suburbs of Perth are situated on the Swan River. Founded in 1829 by Captain James Stirling as the political centre of the free settler Swan River Colony, Perth has continued to serve as the seat of Government for Western Australia to the present day. Traditionally, Perth and the Swan River have usually been viewed and photographed from Kings Park, situated on a hill to the southwest of the city or from the South Perth foreshore. The

Inglise keel




Meedia

Kommentaarid (0)

Kommentaarid sellele materjalile puuduvad. Ole esimene ja kommenteeri



Sellel veebilehel kasutatakse küpsiseid. Kasutamist jätkates nõustute küpsiste ja veebilehe üldtingimustega Nõustun