Sentences with phrase «research on bird populations»

Not exact matches

Populations of both penguin species have plummeted in recent years, which the research blames on the loss of the tiny, shrimp - like krill that are a staple food for both birds.

Eben Paxton of the U.S. Geological Survey Pacific Islands Ecosystems Research Center at Hawaii Volcanoes National Park and colleagues looked at population trends for seven species of native forest birds living on Kauai's Alakai Plateau, the eroded crater of a long - extinct volcano.

«Playback experiments between geographically isolated taxa provide key data on how populations might perceive each other in terms of «same» or «different» if they were in actual contact,» according to Louisiana State University's J.V. Remsen, an expert on Neotropical birds who was not involved in the research.

The focus of the research team, which includes UD graduate student Clark Nissley, was on the Atlantic brant goose, a bird whose population has been fluctuating and on a moderate decline for many years, to learn if limitations during the summer breeding season have accelerated that trend.

The research, published in the British Trust for Ornithology (BTO) journal Bird Study, looked at the breeding populations of three species of large gull; Herring Gull, Great Black - backed Gull and Lesser Black - backed Gull on the Hebridean island of Canna, and the relationship between these gull populations and the fall in the quantity of fish landed in the nearby harbour of Mallaig.

To better understand the interacting effects of habitat degradation and climate on bird populations, researchers from the U.S. Forest Service Pacific Southwest Research Station (PSW), Klamath Bird Observatory, and Costa Rica Bird Observatories spent 12 years studying the White - collared Manakin, a fruit - eating tropical bird, in mature and young forests along the Caribbean coast of Costa Rbird populations, researchers from the U.S. Forest Service Pacific Southwest Research Station (PSW), Klamath Bird Observatory, and Costa Rica Bird Observatories spent 12 years studying the White - collared Manakin, a fruit - eating tropical bird, in mature and young forests along the Caribbean coast of Costa RBird Observatory, and Costa Rica Bird Observatories spent 12 years studying the White - collared Manakin, a fruit - eating tropical bird, in mature and young forests along the Caribbean coast of Costa RBird Observatories spent 12 years studying the White - collared Manakin, a fruit - eating tropical bird, in mature and young forests along the Caribbean coast of Costa Rbird, in mature and young forests along the Caribbean coast of Costa Rica.

Research Assistant, Institute of Ecosystem Studies, NY (May 00 — Aug 00) The interactions of tree regeneration, rodent and bird populations, and tick density and their effect on the risk of human exposure to vector - borne disease.

«So let's stabilise the population in Tasmania, and have the scientists research whether it is good for the Tassie devil and good for the broader native Australian population with regards to native birds, native mammals on the mainland.»

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.»

Recent research suggests that collisions with buildings and communication towers have no significant effect on bird populations.

Research showing prospective effects of climate change on bird populations demonstrated a need for prevention, one approach being renewable energy.

Her research focuses on the effects of agricultural land uses on forest bird populations, as well as testing monitoring techniques to determine how land use patterns around protected areas influences their capability to maintain current levels of biodiversity.