The positive
impacts on bird populations are due to increased space and the presence of cattle.
«This is a prime example of how intensive management of forest lands for industrial purposes can have a direct
impact on bird populations in a positive way.»
As the UK's Royal Society for the Protection of Birds notes, in refreshingly straightforward language: «Despite the large numbers of birds killed, there is no scientific evidence that predation by cats in gardens is having
any impact on bird populations UK - wide... It is likely that most of the birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.»
«Despite the large numbers of birds killed, there is no scientific evidence that predation by cats in gardens is having
any impact on bird populations UK - wide,» explains an article on the RSPB website.
But we need to ensure the use of materials like neodymium and concrete is kept to a minimum, that turbines use recycled materials wherever possible and that they are carefully sited to the reduce the already minimal
impact on bird populations.»
Not exact matches
To investigate the
impacts of climate fluctuations
on Northwestern migratory
bird populations, ecologist M. Philip Nott and colleagues at the Institute for Bird Populations in Point Reyes Station, California, captured birds in «mist» nets at 36 stations in forests of Oregon and Washington between 1992 and 2
bird populations, ecologist M. Philip Nott and colleagues at the Institute for Bird Populations in Point Reyes Station, California, captured birds in «mist» nets at 36 stations in forests of Oregon and Washington between 199
populations, ecologist M. Philip Nott and colleagues at the Institute for
Bird Populations in Point Reyes Station, California, captured birds in «mist» nets at 36 stations in forests of Oregon and Washington between 1992 and 2
Bird Populations in Point Reyes Station, California, captured birds in «mist» nets at 36 stations in forests of Oregon and Washington between 199
Populations in Point Reyes Station, California, captured
birds in «mist» nets at 36 stations in forests of Oregon and Washington between 1992 and 2000.
The agency concluded that the farm will have minimal
impact on the
population of migratory
birds, the activity of local sea life and the ocean views of the politically powerful.
The effects of waste
on larger animals, including
birds with stomachs full of plastic, have garnered significant attention, he says, but «when you start altering [whole]
populations,... that's when you get these true
impacts.»
The
population - level
impact of these viruses
on free - living wild
bird species is currently unknown.
The
impacts of the wetland maintenance programmes carried out in the wetlands of southern Finland
on stopover and nesting
bird populations were studied in 2004 - 2012.
This has been shown to have a small but significant
impact on population size by increasing the number of breeding
birds, as well as influencing the sex ratio.
Populations consisting of billions of
birds that existed for tens of thousands of years would have had significant
impacts on food resources, so understanding these
impacts is vital to managing reintroduction efforts.
Over the long term, these findings will help scientists understand the
impact of climate and land - use changes
on bird populations.
Even if Oda's right about the two million
birds, that says nothing about the
impact on their
populations.
Impacts of Free - ranging Domestic Cats (Felis catus)
on birds in the United States: A review of recent research with conservation and management recommendations (2009) HAHF cites the 2009 paper co-authored by former Smithsonian researcher Nico Dauphiné (who resigned after being found guilty of attempted animal cruelty last year, after rat poison was found in cat food outside her apartment building) as evidence of «the incredible
impact of free ranging cats
on the
bird populations of the U.S.» Among the many flaws in «
Impacts of Free - ranging Domestic Cats» was the authors» estimate of «117 to 157 million exotic predators,» which was based
on David Jessup's inflated (and, not surprisingly, unattributed) «estimate» of «60 to 100 million feral and abandoned cats.»
Counting Cats and Counting
Birds In both studies, the authors quantified the
impact of cat predation
on bird populations by comparing different levels of predation with different
bird densities.
Cats also have a profound
impact on wildlife, particularly
bird populations.
[5, 6] Or, as the Royal Society for the Protection of
Birds makes puts it: «It is likely that most of the birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.&r
Birds makes puts it: «It is likely that most of the
birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.&r
birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major
impact on populations.»
«It is likely that most of the
birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major
impact on populations.»
And when it comes to the
impact of cats
on continental
bird populations, ABC highlights rare and endangered species — but ignores entirely two key points.
As the UK's Royal Society for the Protection of
Birds notes: «It is likely that most of the birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.&r
Birds notes: «It is likely that most of the
birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.&r
birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major
impact on populations.»
Even setting all that aside, the question remains: What
impact does predation by cats have
on bird populations?
Additional Evidence Many researchers have disputed the kind of broad, overreaching claims Lebbin et al. make about the
impact of cats
on bird population (and wildlife in general).
Forty of these species are often present in urban or suburban landscapes, where
impacts of high cat densities
on bird populations have been demonstrated elsewhere.
The authors have no idea what
impact these cats might have
on bird populations — which is the stated purpose of their paper.
Heritage is committed to minimizing the
impact of our activities
on bird and bat
populations by properly planning and siting our wind farms, conducting preconstruction use surveys and post-construction mortality surveys, using only state of the art technology and design, utilizing effective best management practices, and implementing adaptive management.
Climate change and the increasing
impact of polar bears
on bird populations.
That's why we are focused
on conserving habitat and reducing other threats that have the potential to reduce
bird populations even before the
impacts of climate change are fully realized.
Was the «expert» prediction correct that modern climate change (i.e., global warming) would have a significant negative
impact on bird specie
populations?