Successive changes in animal life during hydrosere, Biology

Successive Changes in Animal Life during Hydrosere

The successive changes in plant communities in the different seral communities of a hydrosere. The question arises, is there any change in the animal life along with the different seres. There are certainly changes in the animal life also, but these may not be as obvious as in case of plant community. In an aquatic ecosystem like this, protozoans Like Paramecium, Amoeba, Euglena and many others are the pioneers. When the planktonic growth forms are very rich, then animals like blue gill fish, sun fish, largemouth bass etc. start appearing. Some caddisflies are also found. In the second stage, that is, the submerged stage, the caddisflies are replaced by other animals that may creep over the submerged vegetation. Thus dragonflies, mayflies and some crustaceans as Asellas, Gammarus, Daphnia, Cypris, and Cyclops inhabit the pond at this stage. At the floating stage, the animals life is chiefly represented by Hydra spp., gill breathing snails, frogs, salamanders, diving beetles, and other insects. There also appear some turtles and snakes. At the reed-swamp stage, the pond becomes shallower, and the bottom starts becoming exposed.

The floating animals are replaced by different species of mayflies and dragonflies, whose nymphs remain attached to submerged parts of the vegetation, and adults present on the surfaces of exposed parts of vegetation. Gill-breathing animals like snails are replaced by lung breathers as Lymnea, Physa and Gyraulus. Among insects, water scorpion, giant water bug, scavenger beetles etc. are present at this stage. The bottom of the pond is now inhabited by some annelids, mud pickerel and bull-heads. Red-winged black birds, kingfisher, great blue heron, swamp sparrow, ducks, musk rats, and beavers become common in the area. At the sedge-meadow stage, the animals like snails as Anodonta, Psidium become common. Finally, at the woodland stage, under terrestrial conditions, most of the terrestrial forms of animal life appear in the area.

Posted Date: 1/21/2013 12:09:56 AM | Location : United States







Related Discussions:- Successive changes in animal life during hydrosere, Assignment Help, Ask Question on Successive changes in animal life during hydrosere, Get Answer, Expert's Help, Successive changes in animal life during hydrosere Discussions

Write discussion on Successive changes in animal life during hydrosere
Your posts are moderated
Related Questions
What are the penetrance and the expressivity of a gene? The Individuals that carry a same genotype don't always manifest in an identical manner the correspondent phenotype. The

After Abutment Connection The patient may complain of pain during screw tightening. Any clinical evidence should be looked into. It is important not to overtighten and overtorq

Explain the use of Enzyme assay Enzyme assay is also used for research into such processes as the browning of plant products which poses problems during value addition. The br

Nutritional care can be recognized as both a science and art. Can you tell why? It is considered as a science because the raped  advances in scientific knowledge provides all h

Explain Implant Integrity Implant Integrity: A horizontal dark line at the abutment level is most probably due to screw-loosening and separation of elements.  This may happen

Estimate the molar mass of protein? An aqueous solution of the protein bovine serum albumin, containing 2:00 *10 -2 g of protein per cubic centimeter, has an osmotic pressure

Photosynthesis is a process used by plants and other organisms to change the light energy captured from the sun into chemical energy which can be beneficial to fuel the organism's

What is the difference between the amphibian heart and the reptile heart? The reptiles have double and incomplete circulation too, three heart chambers (two atria and one ventr

types of enzyme

Characteristics of Thick Gingiva  Relatively flat soft tissue and bony architecture  Dense fibrotic soft tissue  Relatively large amount of attached gingiva  Thick und