Human Impacts on Biodiversity | Ecology and Environment | Biology | FuseSchool
Human Impacts on Biodiversity | Ecology and Environment | Biology | FuseSchool
Human Impacts on Biodiversity | Ecology and Environment | Biology | FuseSchool
Biodiversity is the variety of life. There are thought to be 8.7 million species on planet Earth. And, as we saw in the video, "Why does biodiversity matter to me?", biodiversity is of utmost importance to humans.
The loss of one key species can have a detrimental impact on many levels; from other species of animals to plants to the physical environment.
Human activities are reducing biodiversity. Our future depends upon maintaining a good level of biodiversity, and so we need to start taking measures to try and stop the reduction.
In this video, we are going to look at how humans are negatively impacting biodiversity.
As the world population has grown from 1.5 billion in 1900 to nearly 7.5 billion people today, unsurprisingly the land use has changed.
Habitats have been destroyed in favour of agriculture, forestry, fishing, urbanisation and manufacturing. Unsurprisingly, habitat loss has greatly reduced the species richness. Habitat fragmentation has also meant that populations have been split into smaller subunits, which then, when faced with challenging circumstances, have not been able to adapt and survive.
After habitat loss, over-harvesting has had a huge effect on biodiversity. Humans historically exploit plant and animal species for short-term profit. If a resource is profitable, we develop more efficient methods of harvesting it, inevitably depleting the resources, as is currently happening with fishing and logging. The exploited species then needs protection. The difficulty is that the demand then outstrips the supply, and so the resource value rises. This increases the incentive to extract the resource and leads to the final collapse of the population, as happened with whales, elephants, spotted cats, cod, tuna and many more species.
-
LIVE
The Charlie Kirk Show
26 minutes agoWhy the Vax is Back + Debate Prep + Cohen Robs Trump | Davis, Hassam-Nahoum, MacArthur | LIVE
6,915 watching -
LIVE
vivafrei
1 hour agoMichael Cohen STOLE from Trump! Liberal Gaslighters! Butker's Graduation Speech & MORE!
1,816 watching -
1:02:22
The Dan Bongino Show
3 hours agoThe Dem's Secret Plot To Dump Biden (Ep. 2253) - 05/20/2024
141K695 -
LIVE
Benny Johnson
1 hour agoIT'S OVER: Trump Trial BOMBSHELL, Star Witness Admits He STOLE From Trump! Iran's President DEAD 🚨
10,912 watching -
59:04
Steven Crowder
3 hours agoIran's President Dead in Helicopter Crash: Everything You Need to Know
139K232 -
45:11
Rethinking the Dollar
2 hours agoGold Surges 23% in 3 Months! Outperforming S&P 500
11.3K6 -
2:58:23
Wendy Bell Radio
7 hours agoTrump's Play for New York
42.4K56 -
2:14:28
Matt Kohrs
15 hours agoTrump BODIES Biden, The Fall of Memes & The Week Ahead || The MK Show
25.2K4 -
1:48:15
jeffahern
3 hours agoMonday Madnes with Jeff Ahern (6AM Pacific)
16.9K3 -
29:57
Cody and Kellie
18 hours agoWhy a Truck Camper? Honest Six Month Review, Living in a Truck Camper
31.5K28