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The region which is prosperous in biodiversity but their habitat is on the edge of destruction, is called?
The region that is prosperous in biodiversity but whose habitat is on the edge of destruction is often referred to as a **biodiversity hotspot**. Biodiversity hotspots are regions that harbor exceptionally high levels of plant and animal species diversity, but they are also under significant threatRead more
The region that is prosperous in biodiversity but whose habitat is on the edge of destruction is often referred to as a **biodiversity hotspot**. Biodiversity hotspots are regions that harbor exceptionally high levels of plant and animal species diversity, but they are also under significant threat from human activities, habitat loss, and other environmental pressures.
To qualify as a biodiversity hotspot, an area must meet two main criteria:
1. It must have at least 1,500 species of vascular plants as endemics (native and found nowhere else).
2. It must have lost at least 70% of its original habitat.
Biodiversity hotspots are prioritized for conservation efforts because they represent irreplaceable reservoirs of biodiversity. Protecting these regions is crucial for preserving Earth’s biological heritage and ensuring the survival of many species that are endemic to these areas. Examples of biodiversity hotspots include the Amazon rainforest, the Coral Triangle in Southeast Asia, and the Cape Floristic Region in South Africa.
See lessThe functional role of an organism in the Ecosystem is called?
The functional role of an organism in an ecosystem is called its ecological niche. An ecological niche encompasses all aspects of an organism's interactions with the biotic and abiotic factors of its environment. It includes the organism's habitat requirements, its role in energy flow and nutrient cRead more
The functional role of an organism in an ecosystem is called its ecological niche. An ecological niche encompasses all aspects of an organism’s interactions with the biotic and abiotic factors of its environment. It includes the organism’s habitat requirements, its role in energy flow and nutrient cycling, its interactions with other species (such as competition, predation, and symbiosis), and its adaptations to environmental conditions.
Each species within an ecosystem occupies a unique ecological niche, which helps define its place and function within the community. Understanding ecological niches is crucial for studying ecosystem dynamics, species coexistence, and the impacts of environmental changes on biological communities.
See lessThe still freshwater Ecosystem is called?
A still freshwater ecosystem is called a lentic ecosystem. Lentic ecosystems refer to bodies of standing or still water, such as lakes, ponds, and marshes. These ecosystems are characterized by their relatively slow water movement or absence of flow compared to lotic (flowing water) ecosystems likeRead more
A still freshwater ecosystem is called a lentic ecosystem. Lentic ecosystems refer to bodies of standing or still water, such as lakes, ponds, and marshes. These ecosystems are characterized by their relatively slow water movement or absence of flow compared to lotic (flowing water) ecosystems like rivers and streams.
Lentic ecosystems support a variety of plants, animals, and microorganisms adapted to still water conditions. They are important habitats for aquatic life and play significant roles in nutrient cycling, water storage, and biodiversity conservation.
See lessThe transitional zones between two Ecosystems are called?
The transitional zones between two ecosystems are called ecotones. Ecotones are areas where two or more distinct ecosystems or habitats meet and interact. These zones can vary in width and may exhibit unique ecological characteristics that differ from the adjacent ecosystems. Ecotones are characteriRead more
The transitional zones between two ecosystems are called ecotones. Ecotones are areas where two or more distinct ecosystems or habitats meet and interact. These zones can vary in width and may exhibit unique ecological characteristics that differ from the adjacent ecosystems. Ecotones are characterized by a mixture of species from each adjoining ecosystem and often support a greater diversity of species than either of the adjacent ecosystems alone.
Ecotones can form naturally, such as where a forest meets a grassland, or they can be influenced by human activities, such as agricultural edges or urban-rural interfaces. They play important ecological roles by facilitating species interactions, nutrient cycling, and genetic exchange between adjacent ecosystems. Understanding ecotones is crucial for conservation and management efforts, as they represent areas of ecological transition and potential biodiversity hotspots.
See lessIn which year the term Ecosystem was used first?
The term "ecosystem" was first used in 1935 by the British ecologist Sir Arthur Tansley. Tansley introduced the term in his publication titled "The use and abuse of vegetational concepts and terms," where he defined an ecosystem as "the whole system (in the sense of physics) including not only the oRead more
The term “ecosystem” was first used in 1935 by the British ecologist Sir Arthur Tansley. Tansley introduced the term in his publication titled “The use and abuse of vegetational concepts and terms,” where he defined an ecosystem as “the whole system (in the sense of physics) including not only the organism-complex, but also the whole complex of physical factors forming what we call the environment of the biome—the habitat factors in the widest sense.”
Since then, the concept of ecosystems has become fundamental in ecology and environmental science, describing the interactions between living organisms and their environment, including both biotic (living) and abiotic (non-living) components.
See lessIn an ecotone, the species which become abundant are called?
In an ecotone, the species that become abundant are called **edge species** or **edge specialists**. Edge species thrive in the transition zone or boundary between two distinct habitats or ecosystems. Ecotones are areas of transition characterized by a mixture of species from adjacent ecosystems, reRead more
In an ecotone, the species that become abundant are called **edge species** or **edge specialists**. Edge species thrive in the transition zone or boundary between two distinct habitats or ecosystems. Ecotones are areas of transition characterized by a mixture of species from adjacent ecosystems, resulting in unique ecological conditions and species compositions.
Edge species often exhibit adaptations that allow them to thrive in the dynamic environmental conditions found at the boundaries of ecosystems. These adaptations can include tolerance to fluctuating environmental factors (such as light, temperature, and moisture), as well as specialized behaviors or physiological traits that give them a competitive advantage in the ecotone.
Ecotones are important for biodiversity because they often support a greater variety of species than either of the adjacent ecosystems alone. Edge species contribute to the overall ecological diversity and resilience of the landscape by utilizing resources from both ecosystems and by facilitating interactions between species from different habitats.
See lessThe largest unit of living organisms on earth is?
The largest unit of living organisms on Earth is the **biosphere**. The biosphere encompasses all the ecosystems on Earth where living organisms exist. It includes all ecosystems on land, in water (both freshwater and marine environments), and in the atmosphere where life is found. The biosphere isRead more
The largest unit of living organisms on Earth is the **biosphere**. The biosphere encompasses all the ecosystems on Earth where living organisms exist. It includes all ecosystems on land, in water (both freshwater and marine environments), and in the atmosphere where life is found.
The biosphere is composed of interacting ecosystems and communities of organisms, ranging from microorganisms to plants, animals, and humans. It represents the sum total of all living organisms and their habitats, extending from the depths of the oceans to the highest mountains and into the atmosphere.
Understanding the biosphere is crucial for studying Earth’s interconnected systems, including the cycling of nutrients, energy flow, climate regulation, and the maintenance of biodiversity.
See lessWhich is responsible for the reduction of ozone content of the atmosphere?
Chlorofluorocarbons (CFCs) and other halogenated compounds are primarily responsible for the reduction of ozone content in the atmosphere. These chemicals contain chlorine and bromine atoms, which can react with ozone (O3) molecules in the stratosphere. The most well-known example is the depletion oRead more
Chlorofluorocarbons (CFCs) and other halogenated compounds are primarily responsible for the reduction of ozone content in the atmosphere. These chemicals contain chlorine and bromine atoms, which can react with ozone (O3) molecules in the stratosphere.
The most well-known example is the depletion of ozone in the ozone layer, which primarily occurs over Antarctica in what is known as the ozone hole. CFCs and similar compounds were widely used in refrigerants, aerosol propellants, solvents, and foam-blowing agents before their harmful effects on ozone were recognized. When these compounds reach the stratosphere, ultraviolet (UV) radiation breaks them down, releasing chlorine and bromine atoms. These atoms then catalytically destroy ozone molecules, leading to a reduction in ozone content in the stratosphere.
International agreements such as the Montreal Protocol have been successful in phasing out the production and use of ozone-depleting substances, leading to a gradual recovery of the ozone layer.
See lessTotal organic matter present in an ecosystem is called?
The total organic matter present in an ecosystem is called **biomass**. Biomass refers to the total mass of living organisms (plants, animals, microorganisms) in a given area or ecosystem at a specific time. It includes living organisms as well as dead organic matter, such as fallen leaves, twigs, aRead more
The total organic matter present in an ecosystem is called **biomass**. Biomass refers to the total mass of living organisms (plants, animals, microorganisms) in a given area or ecosystem at a specific time. It includes living organisms as well as dead organic matter, such as fallen leaves, twigs, and decaying plant and animal material.
Biomass is an important measure of the productivity and health of an ecosystem. It represents the amount of energy fixed by photosynthesis and available for consumption by other organisms within the ecosystem. Biomass can be measured in terms of dry weight per unit area (e.g., grams per square meter) and provides insights into the overall productivity and dynamics of biological communities within the ecosystem.
See lessWhich is the useful biological indicator of sulphur dioxide pollution?
Lichens are considered useful biological indicators of sulfur dioxide (SO2) pollution. Lichens are composite organisms consisting of a fungus and a photosynthetic partner (usually algae or cyanobacteria) living together in a symbiotic relationship. They are highly sensitive to air pollution, especiaRead more
Lichens are considered useful biological indicators of sulfur dioxide (SO2) pollution. Lichens are composite organisms consisting of a fungus and a photosynthetic partner (usually algae or cyanobacteria) living together in a symbiotic relationship. They are highly sensitive to air pollution, especially sulfur dioxide.
Lichens do not have roots and obtain nutrients and water directly from the air and rain. When exposed to sulfur dioxide in the air, lichens can absorb and accumulate sulfur dioxide and sulfur dioxide-derived compounds. This accumulation can lead to changes in their growth rates, morphology, and even death in highly polluted areas. Therefore, studying the presence, diversity, and health of lichen populations can provide valuable insights into the level of sulfur dioxide pollution in an environment.
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