Which of the following is NOT a possible reason for migration Brainly?
Increased biodiversity is not a possible reason for migration.
What is a possible cause for decrease in ecosystem productivity?
the possible cause for a decrease in ecosystem productivity is : B. a decrease of the biodiversity o an ecosystem. Decrease in biodiversity means that there will be less organisms that support each other to maintain the balance in the ecosystem, which eventually decrease its productivity.
Which of the following is most likely to cause a decrease in biodiversity?
1. Habitat destruction. Habitat destruction is a major cause of biodiversity loss. Habitat loss is caused by deforestation, overpopulation, pollution, and global warming.
What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau a they evolved separately as they moved north and became two separate species B the original species died off but?
What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau? a. They evolved separately as they moved north and became two separate species. They were unable to adapt and evolve to ensure their survival and became extinct.
Is migration is always temporary?
TRUE. Migration is always temporary.
What are two main distinctions between the East Siberian greenish warbler?
The wing bars which are used for communication: The east Siberian greenish warbler has two wing bars whereas west Siberian greenish wablers have one set of wing bars.
What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau What are two main distinctions between the East Siberian greenish warbler and the West Siberian greenish warbler?
Answer; They evolved separately as they moved north and became two separate species. Explanation; The greenish warblers weren’t geographically isolated, but they migrated around the Tibetan Plateau, evolving separately until they were no longer able to interbreed when both species (East and West) contacted in Siberia.
How were warblers isolated?
We found evidence fire is creating habitat conditions leading to isolation between nesting golden‐winged warblers and blue‐winged warblers. Fire also provides a potential conservation tool by isolating golden‐winged warbler and blue‐winged warbler nesting populations.
What are the 5 major causes of biodiversity loss?
Species extinction.
- Habitat Loss and Fragmentation: A habitat is the place where a plant or animal naturally lives.
- Over-exploitation for Commercialization: ADVERTISEMENTS:
- Invasive Species:
- Pollution:
- Global Climate Change:
- Population Growth and Over-consumption:
- Illegal Wildlife Trade:
- Species extinction:
What are the 6 main threats to biodiversity?
6 Main Threats to Biodiversity – Explained!
- Human Activities and Loss of Habitat:
- Deforestation:
- Desertification:
- Marine Environment:
- Increasing Wildlife Trade:
- Climate Change:
How can we prevent loss of biodiversity?
- 9 ways we can reverse biodiversity loss. Source: vlad61/iStock.
- Recycle, Recycle, Recycle.
- Buy Sustainable.
- Drive Green.
- Protect Local Habitats and Make Wildlife Welcome.
- Go Package-Free.
- Compost.
- Volunteer.
What are the reason for loss of biodiversity?
Biodiversity, or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change.
What are the causes and consequences of loss of biodiversity?
The main cause of the loss of biodiversity can be attributed to the influence of human beings on the world’s ecosystem, In fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and …
What do you mean by loss of biodiversity?
Biodiversity loss, also called loss of biodiversity, a decrease in biodiversity within a species, an ecosystem, a given geographic area, or Earth as a whole.
What are the main drivers of biodiversity loss?
The five direct drivers are: (1) changes in land and sea use; (2) direct exploitation of organisms; (3) climate change; (4) pollution and (5) invasive alien species.
What are two human activities that result in a loss of biodiversity?
The main human activity that affect biodiversity are habitat destruction, foreigner species importation and hunting.
What are the major factors affecting biodiversity today?
Climate change, deforestation and loss of habitat and pollution are one of the factors affecting biological diversity. The greatest factor would be climate change wherein animals and other species fail to adapt in changing climate thus resulting to their death.
What are the major threats of biodiversity?
5 major threats to biodiversity, and how we can help curb them
- Climate change. Changes in climate throughout our planet’s history have, of course, altered life on Earth in the long run — ecosystems have come and gone and species routinely go extinct.
- Deforestation and habitat loss. Image: Nelson Luiz Wendel / Getty Images.
- Overexploitation.
- Invasive species.
- Pollution.
What are the threats to biodiversity write any four?
The core threats to biodiversity are human population growth and unsustainable resource use. To date, the most significant causes of extinctions are habitat loss, introduction of exotic species, and overharvesting. Climate change is predicted to be a significant cause of extinctions in the coming century.
Which factor is not related to the loss of biodiversity?
Over-exploitation of natural resources.
What are the major factors that are responsible for the loss of biodiversity class 11?
Overexploitation of resources and deforestation. Destruction of natural habitats. Natural calamities such as earthquakes, floods, volcanic eruptions, forest fires, droughts, etc. Pesticides and other pollutants such as hydrocarbons and toxic heavy metals.
Which time in Earth’s history features the greatest biodiversity?
The worst was the Permian-Triassic extinction event, 251 million years ago. Vertebrates took 30 million years to recover from this event. The fossil record suggests that the last few million years featured the greatest biodiversity in history.
What are 3 types of biodiversity?
Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity. Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms.
What are the 4 major components of biological diversity?
The four major components of biological diversity are: Functional Diversity (biological or chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems), Ecological Diversity (the variety of terrestrial and aquatic ecosystems found in an area or on the …
Where is the greatest biodiversity found?
Amazonia
Which forest is richest in animal and plant diversity?
#1: Brazil. Brazil is the Earth’s biodiversity champion. Between the Amazon rainforest and Mata Atlantica forest, the woody savana-like cerrado, the massive inland swamp known as the Pantanal, and a range of other terrestrial and aquatic ecosystems, Brazil leads the world in plant and amphibian species counts.
What are examples of biodiversity?
Most people recognize biodiversity by species—a group of individual living organisms that can interbreed. Examples of species include blue whales, white-tailed deer, white pine trees, sunflowers, and microscopic bacteria that can’t even be seen by the naked eye.
What country has the highest number of bird species?
Colombia
