Sentences with phrase «studies migratory birds»

Mirsky: As somebody who really studies migratory birds just what one thing maybe just pops to the top of your head that still after all of these years just amazes you about the physical achievement of some of these creatures?

Ornithologist Eduardo Inigo - Elias, senior research associate with the conservation science program at the Cornell Laboratory of Ornithology, talks about the challenges of studying migratory birds and how improved relations between the U.S. and Cuba will help his field

First though Eduardo Inigo - Elias will talk to us about the challenges of studying migratory birds and the potential beneficial effects in his field of the thawing of the U.S. relationship with Cuba.

Not exact matches

And when placed in a large, inverted funnel used to study birds» migratory orientations, the neonic - fed birds tried to fly in directions other than north.

If you're like me, you're thinking, «But I went into science because I want to study quasars,» or «because I'm obsessed with migratory birds,» or «because I was too nerdy for a Ph.D. in anthropology but not nerdy enough for a Ph.D. in engineering.»

One of the interesting things to study, we know Central Park is important for migratory birds and we know that they depend upon the food resources that are here, but no one has ever really done a systematic survey of what actually they are feeding on, like we have never done a canopy study of all the invertebrates up in the trees to see what's coming out when and what is the predominant part of the diet of different birds and sort of quantifying; but what they have done — people have done — with shore birds and sort of gauging, weighing them, you know, catching them, weighing them, seeing how much weight they gain over time while they are rather resting and feeding before they depart on their northern trip.

A recent study from researchers at the University of Montana, National Audubon Society, Oregon State University and East Cascades Audubon Society shows food sources for migratory birds decline with low water levels and high salt content in lakes.

To do that, Dove tapped Peter Marra, an ornithologist at the Smithsonian Migratory Bird Center in Washington, D.C. Marra studies bird migrations in part by doing a sophisticated chemical analysis of feathBird Center in Washington, D.C. Marra studies bird migrations in part by doing a sophisticated chemical analysis of feathbird migrations in part by doing a sophisticated chemical analysis of feathers.

Tonra, previously with the Smithsonian Migratory Bird Center, worked with Kimberly Sager - Fradkin of the Lower Elwha Klallam Tribe and Peter Marra of the Smithsonian on both studies.

According to a new study by biologists at Virginia Tech and the Smithsonian Migratory Bird Center, the offspring of a certain songbird, the wood thrush, are more likely to survive drought in larger forest plots that offer plenty of shade and resources.

The study, appearing October 29 in Nature, may improve conservation efforts for migratory birds.

The magnetic sense in migratory birds has been studied in considerable detail: unlike a boy scout's compass, which shows the compass direction, a bird's compass recognizes the inclination of the magnetic field lines relative to Earth's surface.

Weimerskirch said the researchers will now study «the learning phase of young frigate birds, how they learn to use these extreme conditions... Also we will test whether living in different oceanic conditions — Galapagos, Western Pacific and Indian Ocean — results in different migratory and dispersal strategies.»

Another result of the study suggests that many tropical species of birds are descendants of migratory ancestors that lost migration and stayed in the tropics year - round.

«We find that a North American species is ancestral to migratory birds in the New World,» said Winger, who is the corresponding author on the study.

The researchers then went on to study the immune system in three different groups: sedentary birds in tropical Africa, European sedentary birds, and migratory birds.

Furthermore, movement - independent ZENK expression in the forebrain of night - migratory birds performing magnetic orientation at night is confined to Cluster N [with the strongest activation in distinct subregions (the shell surrounding the DNH nucleus)-RSB-, as shown by the detailed quantification of ZENK expression within Cluster N performed in this study], and this expression massively decreased in corresponding brain areas of non-migratory songbirds and in all bird species during daytime [13].

But here at home, a much smaller organism may be circling the globe time and time again without accolades: According to a new study, the itty bitty dragonfly Pantala flavescens could take longer flights than any other known insect, putting it in the ballpark of larger migratory animals like birds and whales.

To learn more, a team of scientists at the Smithsonian's Migratory Bird Center studied the gray catbird (Dumatella carolinensis) in three suburban Maryland areas outside of Washington, D.C. — Bethesda, Opal Daniels and Spring Park.

A national debate has simmered since a 2013 study by the Smithsonian's Migratory Bird Center and the U.S. Fish and Wildlife Service concluded that cats kill up to 3.7 billion birds and 20.7 billion small mammals annually in the United States.

The project launched its first field research earlier this spring on nearly two dozen separate studies, which range from the changing migratory patterns of caribou and birds to the role of fire as a contributor to climate change.

«Our study clearly showed that European migratory bird species with declining breeding populations in Europe in the last decades (1990 — 2000) responded the least to recent climate change as reflected by the temporal trend in spring migration phenology, or even delayed their timing of spring migration, whereas species with stable or increasing populations advanced migration.»

Above graph (study discussed below) shows earlier spring arrival dates over a 140 year dataset for migratory birds in South and Central Sweden.

African - European migratory birds can offer an early climate warning Now why would a study over ten years old that looks back at the late 20th century already find such stark climate change impacts?

Studies also show with certainty that given good physical condition, large numbers of migratory birds and bats cross the lake, many of them making the long journey after stopping at the shoreline to rest and feed.»

This study showed that in fact many European migratory birds do indeed advance the timing of their spring migration in response to climate change [so another study in favour of climate (temperature) over circadian rhythm for migration timing] and that it may actually be the long - distance migratory birds that show better adaption:

Some studies show that birds that winter in Africa are most vulnerable, others state shorter - distance European migratory birds are most affected.

The research, which looked exclusively at the Northern hemisphere, examined 743 estimates on the rate of springtime advance from 86 years of related studies, drawing on springtime indicators like the appearance of new leaves, blooming flowers and migratory birds.

The Finnish ornithologist Johannes Leche is widely credited with undertaking the first proper study of the migratory patterns of birds, with his pioneering work in the mid-18th century based largely upon the technique of ringing individual animals.

The potential impact of climate change on migratory birds has been especially well studied (Box 4.5).

Such small patches of green can still be helpful for migratory birds, according to an unrelated study published last week in the journal Landscape Ecology.