Question

biodiversity hotspots
standard: sev2. obtain, evaluate, and communicate information to construct explanations of stability and change in earth’s ecosystems.

• d. construct an argument to support a claim about the value of biodiversity in ecosystem resilience including keystone, invasive, native, endemic, indicator, and endangered species.

learning target: we will explain why biodiversity is important to ecosystem resilience
objective: today you will research how important biodiversity is to ecosystems

1. first choose a hotspot to research

table with hotspots: polynesia and micronesia, california floristic province, mesoamerica, tropical andes, choco - darien and western ecuador, central chile, atlantic forest region, brazilian cerrado, mountains of south central china, western ghats of sri lanka, philippines, indo - burma, sundaland, wallacea, succulent karoo, guinea forest of west africa, madagascar and indian ocean islands, caribbean, caucasus, mediterranean basin, eastern arc mountains and coastal forest of tanzania and kenya, cape floristic province, new caledonia, new zealand, southwest australia

1. second research

a. give how many different plant species exist here
b. give how many different animal species exist here
c. describe in 2 complete sentences the regions rare species of
i. 2 plants
ii. 2 animals
d. what continent is this ecosystem located on?
e. what biome is this ecosystem within?
f. what threatens this ecosystem
g. what conservation efforts are being done to protect this ecosystem’s biodiversity?
h. one interesting fact about your ecosystem

1. third draw it:

a. include a colorful drawing that represents your biodiversity hotspot

answers to research questions

Answer:

To solve this problem, we'll choose the "Madagascar and Indian Ocean Islands" biodiversity hotspot and answer the research questions:

1. First Choice of Hotspot

Selected hotspot: Madagascar and Indian Ocean Islands

2. Second Research (Answering the Sub - questions)

a. Number of different plant species

Madagascar and the Indian Ocean Islands have over 14,000 plant species, with about 90% of them being endemic (found nowhere else on Earth). For example, the baobab trees (there are 6 endemic baobab species in Madagascar) and the orchids (around 1,000 orchid species, many endemic) are prominent.

b. Number of different animal species

• Mammals: There are about 200 mammal species, with over 90% endemic. Examples include all 10 species of lemurs (like the ring - tailed lemur and the aye - aye) and the fossa (a unique carnivorous mammal).
• Reptiles: Around 400 reptile species, with a high endemic rate (e.g., the panther chameleon, which has many color - variant subspecies).
• Amphibians: Over 200 amphibian species, nearly all endemic (such as the tomato frog).
• Birds: About 280 bird species, with a significant number (like the Madagascar fish - eagle) being endemic.

c. Rate species description (in 2 sentences)

The Madagascar and Indian Ocean Islands region has an extremely high rate of endemic species (around 80 - 90% for many taxonomic groups). This means that a large proportion of the plants and animals here are found only in this hotspot, making it a critical area for biodiversity conservation as these species are at risk of extinction if the ecosystem is damaged.

d. Continent of the ecosystem

The Madagascar and Indian Ocean Islands ecosystem is located on the continent of Africa (Madagascar is an island off the southeast coast of Africa, and the other islands in the group are also in the Indian Ocean near Africa).

e. Biome of the ecosystem

This ecosystem has a mix of biomes, but the dominant ones are tropical dry forest (in the drier regions of Madagascar) and tropical rainforest (in the northeastern, more humid parts of Madagascar). There are also unique coastal and island - specific ecosystems, like mangrove swamps in some of the smaller islands.

f. Threats to the ecosystem

• Deforestation: Large - scale logging for timber (e.g., of valuable hardwoods) and clearing of land for agriculture (such as slash - and - burn farming for rice cultivation) is destroying habitats.
• Invasive species: Species like the black rat and the Indian mongoose, introduced by humans, prey on native species (e.g., bird eggs and small lemurs) and outcompete native fauna.
• Climate change: Rising sea levels threaten coastal ecosystems (like mangroves and coral reefs), and changing rainfall patterns are disrupting the delicate balance of the dry and rainforest biomes.

g. Conservation efforts

• Protected areas: Over 100 protected areas (including national parks like Ranomafana National Park) have been established to preserve habitats. These areas restrict human activities like logging and unsustainable farming.
• Species - specific programs: For example, the Lemur Conservation Network works to protect lemur species through research, education, and habitat restoration. Captive breeding programs for endangered species (like some lemur and chameleon species) are also in place.
• Sustainable development initiatives: Promoting eco - tourism (e.g., responsible lemur - watching tours) that provides income to local communities while encouraging conservation, and teaching sustainable farming methods to reduce deforestation.

h. Interesting fact

Madagascar is home to the aye - aye, a primate with a unique long, thin middle finger used to tap on trees and find grubs (it's the world's largest nocturnal primate). Also, the island has the world's smallest chameleon (Brookesia micra, which can be as small as 2.9 cm in length) and some of the world's largest (like the Parson's chameleon).

3. Third: Draw It

(Description of the drawing)

• Background: Draw the outline of Madagascar and some of the nearby Indian Ocean Islands (like the Comoros, Mauritius, and Réunion) to show the geographic area.
• Biomes: Use different colors to represent the tropical dry forest (e.g., brownish - green with scattered trees) and tropical rainforest (e.g., dense, dark green with layers of vegetation). Add mangrove swamps (dark green near the coasts) and coastal areas (light blue for the ocean).
• Key species: Draw a ring - tailed lemur in the forest, a panther chameleon on a branch, a baobab tree, and a tomato frog near a small water body.
• Threats/Conservation: Add small symbols: a chainsaw (for deforestation), a mongoose (invasive species), and a shield (for protected areas) or a person doing eco - tourism (to show conservation efforts).

This comprehensive approach covers the research questions about the chosen biodiversity hotspot.