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
Question 1: (a) Give, in order, the major categories of taxonomic classification. (b) Differentiate between the five kingdoms of organisms. (c) Differentiate between net

Blotting method to detect particular one proteins Ans) Western blotting

Ask question #Minimuwhat are the similarities between pisces and amphibians

Define the Concept of Nutrition? Nutrition may be defined as the science of food and its relationship to health. It is concerned primarily with the past played by nutrients in

The earth's environment has been composed in a way which sustains life on this planet. Through on process, the different constituents of the atmosphere are consumed and through the

I have a test online it is timed 30 minutes on Anatomy and Physiology I need an expert who is an expert in this subject to take it for me

WHAT ARE THE BRANCHES AND CONCEPT OF APPLIED BIOLOGY


Nucleic acid thermodynamics is the learning of how temperature affects the nucleic acid structure of dsDNA (double-stranded DNA). The melting temperature (Tm) is explained as the t

Q. According to the cellular organization how are living beings divided into two groups? Cellular beings are divided into two groups, unicellular beings and the prokaryotes who