About 99% of these mortalities are native bird species. With a much sparser evidence base, we also estimate that a further 44 million birds are killed annually by feral cats in highly modified landscapes, and 61 million birds are killed annually by pet cats, summing to 377 million birds ...
How many animal species live in the Amazon Basin? How many different species of marsupials are there? How many cane toads are in Australia? How many animal species are there in Antarctica? How many bird species are there in the Amazon rainforest?
Where high species richness and high human population density coincide, potential exists for conflict between the imperatives of species conservation and human development. We examine the coincidence of at-risk bird species richness and human population in the countries of the tropical Andes. We then ...
How many birds are there in a city of half a million people? Aim Urban environments are often characterized as supporting a few abundant, generalist species best adapted to living alongside humans, and as such, citie... RA Fuller,J Tratalos,KJ Gaston - 《Diversity & Distributions》 被引量...
While Americans recognize the bird as a household parakeet, budgies are native to Australia and easily the most popular bird there. The nomadic species often dwells among small flocks but can also be seen as they are here in giant flocks. Mesmerizing murmuration of starlings MENAHEM KAHANA/AFP ...
Even in the centre of a city, once you start looking you will be surprised at how many different creatures you can spot, such as squirrels, birds and foxes. Lots of wild animal species in the UK are under threat right now. One of the best things you can do to help them is to re...
Nowadays, many wild animals around the world are in danger. Some kinds of them are dying out at an alarming rate (以惊人的速度). Between 150 and 200 species (物种) disappear every day. To make us aware of the serious problem and help save the animals in danger before it’s too late...
There are many, many other topics and experiments that Mathevon discusses here, such as acoustic communication in birds, crocodiles, and underwater. He discusses how vocalisations are produced and heard, how individuals learn to vocalize, how vocalizations express emotions, and how some species comm...
Biology— You have been a passionate bird-watcher for most of your life. Your father would take you around to various parks and teach you how to identify various bird calls, differentiate between males and females within a species, and more. This has developed into an interest in the evoluti...
After a period as an endangered species, bald eagles are once again thriving. ©Jon C. Beverly/Shutterstock.com After many years of hard work and careful management, in 1995 bald eagles were downgraded to “threatened” across the rest of the US, where they had previously been classified as...