National Geografic with their accurate data. “At least $400,000 coyoties killed annually in USA” That is over 1000 individuals killed every day. I have hard time to believe in this number.
I don’t really believe the numbers and data they show, but I do believe that some species are thriving in the city. Every time I go to the city I see lots of animals, such as birds, coyotes, raccoons, and a bunch of other species. The sewers probably have more animals dwelling down there since little to no people go down there. Many species are evolving rapidly to survive our ways, and it’s only a matter of time when other species do the same. It’s sad to see a lot of animals disappear, but death and appearances of species happen nearly all the time in nature. In the prehistoric times, many species came and gone, but there were always animals evolving to fill the empty niches.
Post by exoticimports on Oct 22, 2018 17:10:05 GMT
I don't believe anything NatGeo publishes. One-sided inaccuracies without the comprehensive story, too much focus on anecdotal examples, cites "authorities" with facts and figures but doesn't check them.
It’s not just National Geographic that is talking about this, it’s also many other sources. Also, strangely, I see animals all over the place in urban areas (i rarely see any birds in the suburbs but see them everywhere in the city).
Some animals adapt well to surburban areas (redtailed hawks, coons, mockingbirds)... don't know about insects though. That's one reason I asked the question. My father thinks insects in his town have decreased quite a lot.
The UK has had quite a few insect extinctions. There have been a number of factors. Some have been bought about by the widespread destruction of their habitat, such as the draining of the fens in East Anglia, others in the same area, with the reduction of the Breckland. Urbanization of the southern lowland heaths saw off a few others and made many rare. Many woodland species has gone because of vast changes in woodland management, and the cutting of woodland and then planting them with close growing cash crops of conifers. Most of our southern meadows went under the plough. Quite a few chalk and other grassland species became extinct with the introduction of myxomatosis, no rabbits and the sward grew too long and shaded out the foodplants. In the last decade or so three moths have become extinct, two once quite widespread and this is probably a combination of factors including loss of habitat and widespread chemical spraying. If you trash your countryside what can you expect. Some of the extinct lepidoptera were endemic subspecies never to be seen again in a living form, making those in collections valuable for study and potent reminder of our loss. I might add that other areas of Britain are far better off, the unspoiled moorland and mountains of SW England, Wales, Northern England and Scotland. Even so many rare species still occur in Southern England and nowhere else in Britain, usually in the many nature reserves and on National Trust land that protects them.
In our association "Lambillionea" (Belgium), some noted this last years an increase of insect diversity (not espacially relied to quantity). Some species considered as extinct or nearly so come back. This can be noted in association with the lower use of chemicals in gardens and roads. Future will surely bring some answers.
s'il n'y pas de solution c'est qu'il n'y a pas de problème ! akuna matata ....