breeding bird survey造句

• Now a new analysis of 30 years of data from the North American Breeding Bird Survey has found that on the whole, continent-wide numbers of the birds have remained surprisingly stable.
• Across the Internet, there is enough information about birds to keep a watcher indoors for a month, including the huge Breeding Bird Survey database at the Patuxent Wildlife Research Center in Maryland.
• But in the new study, researchers scrutinized data from breeding bird surveys, soil-testing records and other sources to determine if there is a link between the declines and acid rain.
• In the United States, the Breeding Bird Surveys, conducted by the US Geological Survey have also produced atlases with information on breeding densities and changes in the density and distribution over time.
• Additionally, citizen science projects such as the North American Breeding Bird Survey and Christmas Bird Count have determined that rusty blackbirds have dropped 85 %  98 % in the past 40 years.
• Since 1966, the North American Breeding Bird Survey has used roadside counts of singing males to monitor population changes among 180 species of songbirds that nest in the 48 contiguous states and southern Canada.
• The BAM is a static historical hazard model based on many years of bird distribution data from Christmas Bird Counts ( CBC ), Breeding Bird Surveys ( BBS ), and National Wildlife Refuge Data.
• The Summer Atlas of North American Birds ( 1995 ) is one such example that makes use of such point data ( not using grids ) collected by the North American Breeding Bird Surveys and Christmas bird counts.
• Current on-going projects include a wildflower inventory, a breeding bird survey, bird species point counts ( joint project with Green Mountain Audubon Center ), an annual butterfly count, and a mammal inventory.
• NATGEO-NEWS-BIRD-SURVEY-JUNE17 _ During June, as the nesting season of birds shifts into high gear across much of the United States and Canada, a small army of birders hits the road to conduct the North American Breeding Bird Survey.
• This table contains the spring bird counts, averaged over 1995 & ndash; 1999 . The priority of various species depends on how well their breeding grounds are covered by surveys such as the Breeding Bird Survey, with birds whose breeding grounds are well surveyed being of lesser priority.
• Currently, the most important monitoring programmes involved in collecting information about the status of the British hedgehog population are PTES " Mammals on Roads " and " Living with Mammals " surveys, and the BTO " Breeding Bird Survey " and " Garden BirdWatch " survey.
• The BTO / JNCC / RSPB Breeding Bird Survey ( BBS ) is a national project aimed at keeping track of changes in the breeding populations of widespread bird species in the UK . In the UK, there are over 3200 active routes and more than 3000 individuals involved in monitoring the population trends of more than 100 bird species.