Results 101 to 110 of about 30,018 (306)

Stanford University’s John Otterbein Snyder: Student, Collaborator, and Colleague of David Starr Jordan and Charles Henry Gilbert [PDF]

open access: yes, 2008
John Otterbein Snyder (1867–1943) was an early student of David Starr Jordan at Stanford University and subsequently rose to become an assistant professor there.
Brittan, Martin R., Jennings, Mark R.
core  

Scaling of soaring seabirds and its implication for the maximum size of flying pterosaurs [PDF]

open access: yes, 2008
The flight ability of animals is restricted by the scaling effects imposed by physical and physiological factors. In comparisons of the power available from muscle and the mechanical power required to fly, theoretical studies have predicted that the ...
Akinori Takahashi   +6 more
core   +1 more source

Past research and future directions in understanding how birds use their sense of smell

open access: yesIbis, EarlyView.
Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece   +2 more
wiley   +1 more source

Asymptotic Solution to the Rayleigh Problem of Dynamic Soaring [PDF]

open access: yesarXiv, 2015
Albatrosses can travel a thousand kilometers daily over the oceans. This feat is achieved through dynamic soaring, a non-flapping flight strategy where propulsive energy is extracted from horizontal wind shears. Dynamic soaring has been described as a sequence of half-turns connecting upwind climbs and downwind dives through the surface shear layer. We
arxiv  

A review of methods used to analyse albatross diets—assessing priorities across their range

open access: yes, 2016
Many seabird populations are threatened by interactions with commercial fisheries, and climate change. Understanding their prey requirements and dietary flexibility in this context is important for effective conservation and management.
Julie C. McInnes   +5 more
semanticscholar   +1 more source

Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence

open access: yesPLoS ONE, 2015
Age-related variation in demographic rates is now widely documented in wild vertebrate systems, and has significant consequences for population and evolutionary dynamics.
H. Froy   +10 more
semanticscholar   +1 more source

Biologically informed ecological niche models for an example pelagic, highly mobile species [PDF]

open access: yes, 2017
Background: Although pelagic seabirds are broadly recognised as indicators of the health of marine systems, numerous gaps exist in knowledge of their at-sea distributions at the species level.
Ingenloff, Kate
core   +3 more sources

Biocentric Work in the Anthropocene: How Actors Regenerate Degenerated Natural Commons

open access: yesJournal of Management Studies, EarlyView.
Abstract As natural commons vital to selves, organizations, and institutions collapse under cumulative anthropogenic pressures, can human agency still reverse some of the damage already done? This article explores how emerging forms of social symbolic work regenerate degenerated natural commons.
Laura Albareda, Oana Branzei
wiley   +1 more source

Using Deep Learning to Count Albatrosses from Space [PDF]

open access: yesarXiv, 2019
In this paper we test the use of a deep learning approach to automatically count Wandering Albatrosses in Very High Resolution (VHR) satellite imagery. We use a dataset of manually labelled imagery provided by the British Antarctic Survey to train and develop our methods.
arxiv  

Symplastic and apoplastic pathways for local distribution of silicon in rice leaves

open access: yesNew Phytologist, EarlyView.
Summary Silicon (Si) is highly accumulated in both the leaf blade and sheath of rice, but the transporter mediating the local distribution of Si between these two tissues remains unidentified. We investigated the role of an aquaporin, OsLsi6, in the local distribution of Si in rice leaves.
Sheng Huang   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy