Question : Indicate the major biotic regions of the world and discuss the ecological aspects of the monsoon region.
(1994)
Answer : A biome includes all plants, animals and soils of all those areas of the world where all the biota have minimum common characteristics and all the areas of biome are characterized by more or less uniform environmental conditions. The biome or biotic region is in fact a large natural ecosystem.
Following major biotic regions can be identified on the basis of vegetational type and structure, climatic type, pedogenic regime and soil-moisture regimes:
Question : Classify soils based on their zonal distribution and describe the characteristics of Pedocals.
(2015)
Answer : Soils can be classified based on their zonal distributions as follows—
The zonal soils are formed on the normal sites from ordinary silicious rocks and show clearly the impact of climate and vegetation zonal soils are characterised by the dominant influence of climate.
Pedocalis the subdivision ofthe zonal soil order. It is formed in semiaridand arid regions. It is rich in calciumcarbonate and has low organic matter.
It has very thin A ....
Question : Describe zoogeographic region. Also describe the basic faunal makeup of the Neo-Arctic zoogeographic region.
(2014)
Answer : Faunal region, also called Zoogeographic Region are any of the six or seven areas of the world defined by animal geographers on the basis of their distinctive animal life. These regions differ only slightly from the floristic regions of botanists. Each region more or less coincides with a major continental land mass, separated from other regions by oceans, mountain ranges, or deserts. They are: Palearctic, Ethiopian (Africa south of the Sahara), Oriental, Australian, Nearctic, Neotropical, ....
Question : State the uniqueness of the Eurasian Steppe Biome.
(2014)
Answer : The steppes are the wild grasslands of Eurasia (located in Eastern Europe and Russia), where there is almost no vegetation due to cultivation and grazing. It consists of treeless plains and is much like a prairie, except the grass is mostly short instead of tall and herbaceous vegetation with isolated shrubbery dominating the plains. Unfortunately, The Steppes biome is becoming “extinct,” because people are constantly digging holes into the ground in search of oil.
Annual Precipitation: ....
Question : Types of endemic plants and their degree of vulnerability to extinction.
(2013)
Answer : Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. Another term for a species that is endemic, is precinctive - which applies to species (and subspecific categories) that are restricted to a defined geographical area. Physical, climatic, and ....
Question : Uniqueness of fauna in the Notogean realm.
(2013)
Answer : Notogean isa zoogeographic division, or realm, of dry land. It corresponds to the Australian region. Notogaean fauna is marked by a predominance of marsupials and includes Prototheria and a relatively small number of terrestrial placentals (rodents). Early in geological history, Australia was cut off from the rest of the world’s land masses. This allowed a range of animals to establish successful populations in Australia - animals that were unable to do so in other parts ....
Question : Adaptation and distribution of animals in Ethiopian realm.
(2012)
Answer : Savanna is located in Ethiopian realm. Generally savanna biome means that floral community which has spread of semi-arid and arid vegetation.It has trees in scattered fashion as well as in dense form and middle level of vegetation consists of shrub. Climate of this biome is characterized by clear, dry and humid season. Temperature remains high throughout the year and doesn’t go below 20°C in any month of the year.
In this region, due to wide change ....
Question : Give a brief account of the principal land biomes and their latitudinal distribution.
(2009)
Answer : The whole biosphere is divided into several natural ecosystems which includes all plants, animals and soils collectively. These natural ecosystems are called biomes. Based on the relationship between the distributional patterns of plants, animals and world climates the world has been divided into different biome types such as
Question : Social Forestry and Environmental Conservation.
(2007)
Answer : To serve many purposes e.g. timber, firewood, economy, environment, the term and practice of social forestry came into being. Social forestry is seen as an instrument of sustainable development and environmental conservation. Thisis due to its potential of resolving three basic issues of rural poor simultaneously. It has a capacity to provide food security, fuel security and livelihood security with eco-friendly approach to development thus leading to sustainable development. Social forestry has been maintained by ....
Question : Distribution of soils.
(2006)
Answer : The major divisions of soil are-Zonal, Intrazonal and Azonal.
Zonal Soil: These soils reflect climate and vegetation to a large degrees, hence they are formed on well-drained sites on non-extreme parent material.
Question : Soil Erosion and Conservation.
(2005)
Answer : Till the time a balance exists between the process of soil formation and soil erosion, there is no problem. When this balance is disturbed, the soil erosion becomes a menace. Indiscriminate felling of trees, careless overgrazing of pasture lands, Unscientific drainage operations and improper land use are some of the important causes which upset this balance. Soil erosion is a major problem in the world.
The two most active agents of soil erosion are wind and ....
Question : Weathering and soil formation.
(1997)
Answer : Weathering has been defined as the total of all processes acting at or near the earth's surface to cause physical disruption and chemical decomposition of rocks in situ. In other words, weathering is the process by which rocks are broken down and decomposed by the action of external agencies such as temperature change, rain, wind, plants, bacteria etc.
Rocks are disintegrated and decomposed and ultimately are broken down into smaller pieces due to the operation of ....
Question : Man and the Amazon Rain Forest.
(1996)
