10 animals on the edge of extinction you didn't know about no. 6

10 animals on the edge of extinction you didn't know about no. 6 - Brown spider monkey

Hello,

Today we're looking at a subspecies of monkey called the brown spider monkey (Ateles hybridus).

The brown spider monkey, also known as the variegated spider monkey, can be found in the Magdalena River basin in Colombia and Venezuela. They live in lowland (sub-)tropical forests. They are social animals, living in groups of up to 30 individuals. These groups have no known social heirachy and are territorial. They split up into smaller groups while foraging for food. Their diet consists of ripe fleshy fruit, flowers, roots, young leaves and seeds. They are vital for the survival of their eco system as they play an important role in seed dispersal.

Adult individuals weigh 6.5 to 9 kg. The females are slightly heavier. They mostly have brown eyes although some have remarkably pale blue eyes. They are about 50 cm big and live for 10-27 years (in the wild). Brown spider monkeys have long legs and a long thin powerful tail. They are better suited to being in the trees where they spend most of their time and are poorly adapted to being on the ground. They are active during the daytime.

Females reach sexual maturity at 8-9 years old and give birth to one baby at a time. The gestation period is 226-232 days (just under 7 months) and the inter birth intervals average at 32-36 months (just under 3 years). They display a polygynandry mating system meaning that both sexes have multiple mating patners. There is no defined mating system and the infacts reach maturity at 4-5 years old.

Unfortunatly, these monkeys are in danger. They are listed as Critically Endangered by the IUCN (since the 23rd March 2020) and have been listed on The World's 25 Most Endangered Primates six times. The IUCN suspects a population decline of 80% over the last three generations (45 years). That decline is continuing. Their suitable habitat is decreasing by 20-30%, leading to a decline in mature individuals. Because females only give birth to one child at a time, it takes the population a very long time to grow, which makes it harder for them to avoid extinction. The main threats are habitat loss through the spread of human civilisations, roads, crop and cattle farming and wood harvesting. They are also hunted for the (partially illeagal) pet trade and for human food and medicine on a local and national level (not internationally).

We hope you enjoyed hearing about these amazing animals. We all hope they will be around in future generations.

Your Green World Blog Team💚

Sources:
https://www.iucnredlist.org/species/39961/17929680
https://www.worldlandtrust.org/species/mammals/brown-spider-monkey/
https://animalia.bio/brown-spider-monkey

Images:

1. This image, owned by Nathan Rupert (on flickr.com) is licensed under CC BY-NC-ND 2.0.

2. This image, owned by Chuck Dowe (on flickr.com) is licensed under CC BY 2.0.

3. This image, owned by Marie Hale (on flickr.com) is licensed under CC BY 2.0.

Comments

Deforestation and why it’s a problem

Hi everyone, Welcome back to another post. Today we’ll be talking about deforestation and its impacts on our earth. Deforestation, the widespread clearance of natural forests, has been happening for thousands of years. One example is Western Europe, where, two millennia ago, 80% of the land was cloaked in dense forest cover. However, over time, a significant portion of this green expanse was sacrificed to create room for crops, livestock grazing, and as a source of fuel and building materials. Presently, a mere 34% of Western Europe retains its woodland. Today, the tropics deal with the brunt of deforestation. Activities such as mining, agriculture, road construction, and the establishment of vast cattle ranches drive the mass clearance of tropical rainforests. This results in the release of huge amounts of carbon dioxide into the atmosphere, exacerbating the global climate crisis. The consequences come in two waves: first, the reduced number of...

Coral reefs

Hello! We would love to introduce you to the topic of coral reefs and especially coral reef bleaching, as it is a greatly ignored but certainly significant topic. Have fun! 5 coral reef facts 1. The Great Barrier Reef is the largest living structure on the planet and is 2300 km long! 2. Less than 0.1% of the world's ocean surface is covered in coral reefs. 3. At least 25% of all marine animals live there. 4. Coral reefs are often known as the rainforests of the ocean. 5. In 1 square kilometre of coral reef, up to 35 tons of fish can be 'produced'. The 5 biggest coral reefs in the world 1. Great Barrier Reef (near Australia) 2. Red Sea Coral Reef (near Egypt, Israel and Djibouti) 3. New Caledonia Reef (Pacific Ocean near New Caledonia) 4. The Mesoamerican Barrier Reef (near Mexico, Belize, Guatemala and Honduras) 5. Florida Reef (Atlantic Ocean/Gulf of Mexico near Florida) What is coral? Coral is actually made up of small anim...

The life of ... a koala

Hello everyone, Today we're talking about koalas. Also known as koala bears, koalas are marsupials. So they're actually not bears. Koalas, phascolarctos cinereus , are tree dwelling and probably best known for spending most of the day sleeping. They live for up to 15 years in the wild although captive koalas generally live for longer. Koalas have a stout, gray body and a cream-coloured chest. They have a broad face, small yellow eyes and big fluffy ears. In adaptation to climbing, their feet are strong and clawed. Adult individuals in South Australia weigh 14kg and are 60-84cm big. Their Eastern cousins are considerably smaller. Koalas are found in Eastern and Southern Australia, where they live in eucalyptus trees. They feed on the leaves of these eucalyptus trees, eating up to 1.3kg a day. With a body weight of up to 14kg, this means they eat just under 10% of their body weight every single day. However, the le...

Energy comparison: Hydroelectricity

Hello everyone, Welcome back to another energy comparison post. Today we're talking about hydroelectricity. This is basically just using the power of moving water for our own uses. This idea has been around for thousands of years. The ancient Greeks and Romans used watermills to grind grains for making bread. Watermills were used up until the Industrial Revolution. What is hydroelectricity? There are three types of hydroelectric power plants. Impoundment facilities are the most common. The water is stored in a pool or reservoir normally located at a higher elevation. The dam uses gates or valves to control the water flow. When there is demand for electricity, the water is released. It falls downwards and turns turbines that turn the kinetic energy of the water (movement energy) into electric energy. Diversion facilities don't have a dam. They channel the water towards the turbines using a system of canals. Pumped-storage facilities are...

How much do you know about the greenhouse gas effect? - Quiz

Welcome back to Green World! Today we have a quiz that will test your knowledge about the greenhouse gas effect and its effect on the world. Enjoy! Questions True or False? Carbon dioxide is the only greenhouse gas. Burning fossil feuls mostly emits ... a) methane b) nitrogen c) carbon dioxide True or False? One ppm (part per million) is the same ratio as one drop of water in 13 gallons of liquid. Which one of these is not a greenhouse gas? a) carbon dioxide b) nitrous oxide c) oxygen True or False? Some greenhouse gases are only in the atmosphere for a few years. Which sector has the highest greenhouse gas emissions in the US? a) Agriculture and other land use b) Electricity c) Industry True or False? 94% of global methane emissions come from human activities. Which sector has experienced the highest increase in...

Animals 31-35 in our '50 incredible animals' series

Hi Everyone! Welcome back to our blog, today we are sharing another 5 incredible animals. This is part of a series to celebrate our 50th blog post, all about unusual animals! Enjoy! 31. Pangolins These creatures are often mistaken for reptiles but they are in fact mammals. They are covered in scales and use them to defend themselves because similar to a hedgehog, they curl up into a ball. They eat ants, termites and larvae. They eat using their tongue, which is very long- sometimes even longer than their body! Sadly, Pangolins are in high demand as their meat is considered a delicacy their scales are used in traditional folk remedies, which means that there is an illegal trade. Luckily, there have been many initiatives put in place to help these animals by WWF and similar organisations. 32. Macropinna Microstoma This is a species of fish that live at about 600m below sea level. They hang nearly motionless in the water and have a very unusual...

Veganism or vegetarianism - are they really sustainable?

Hello everyone Does veganism come with health issues? Is it sustainable? And does vegetarianism change anything? - We're going to be comparing three different diet types: veganism, vegetarianism, and a mixed diet, in multiple categories. This post is structured into the following sections: human rights health area needed animal rights greenhouse gas emissions Which diet is the best? Image and text sources Warning: There are no graphic images in this post. However, in the 'human rights' and 'animal rights' sections, there are descriptions of physical and mental abuse towards both humans and animals. Skip those sections, if you know you can't deal with that. Human rights This may seem like an unrelated topic at first, but in many industries, the rights of people in poorer countries are abused because it's cheaper for the compa...

Amazon Rainforest series - part 3: human involvement

Hi everyone, This is the last post in the amazon rainforest mini series. It's all about how humans have affected the amazon rainforest. Unfortunately, most human impact on the amazon is negative. The Amazon rainforest faces many threats, but the main one is fire. You may think that the fires in the amazon are wildfires or created by accident, but that is not true. All over the amazon, farmers are setting fire to the trees and foliage. For only one reason, to clear land for farming. But this is a disaster. Last month, the amazon rainforest reached its tipping point . Due to the fires, it is now releasing more CO2 than it is absorbing. To feed our growing population, we are killing countless species. Species, that in some cases, we haven't even discovered yet. If the amazon rainforest goes, climate change will become pretty much unstoppable. But it isn't only animals and plants that are suffering. Do you remember all those tribe...

How much do you know about rainforests? - Quiz

Hi everyone Today we have another quiz for you. This time it's about rainforests. Questions How much of the earth's surface is covered by rainforests? a) 3% b) 6% c) 12% What percentage of our oxygen do rainforests create? a) 20% b) 30% c) 50% True or False? The Amazon Basin stores 1/5 of the world's freshwater? How many plants used in cancer treatment can only be found in rainforests? a) 40% b) 50% c) 70% True or False? A raindrop can take 10 minutes to fall from the tree tops to the ground in tropical rainforests? If the Amazon rainforest were a country, it would be the a) ...largest country in the world b) ... 9th largest country in the world c) 10th largest country in the world How many of the flowers in the Austrailian rainforests are only found there? a) 70% b) 80% c) 90% True or False? ...

The Climate Book by Greta Thunberg | review & thoughts

Hi Everyone! You may be aware that Wednesday was International Women's Day, so today I wanted to share a book review for a book written by one of the most inspiring women of our generation: Greta Thunberg. She is, of course, the legendary creator of the Fridays For Future movement and has inspired thousands of children to skip school on Fridays to protest for the climate. She recently compiled a book, simply entitled: The Climate Book. Here are my thoughts. This is a compilation of articles and essays from the best climate scientists, activists and high-profile people, which makes up, in my opinion, the climate bible . It quite literally encompasses everything you may want to know about the climate crisis, from the science, to how it affects us, what we've done and have yet to do, and so much more. This book is everything. I have not yet read the whole thing, because let me tell you, this book is HUGE. It's also of course very den...

Green World

Search This Blog