Results 71 to 80 of about 45,581 (379)
Sharpening our understanding of saber‐tooth biomechanics
The Anatomical Record, EarlyView.Abstract Saber‐teeth are a striking example of convergent evolution in vertebrate predators, having evolved multiple times in mammals and their early ancestors. While there is broad consensus that saber‐toothed taxa employed a distinct biting strategy compared to conical‐toothed carnivores, like the lion, the precise mechanics and variability of this ...
Tahlia Pollock, Philip S. L. Anderson
wiley +1 more source
Verification of Information Flow Properties under Rational Observation [PDF]
, 2014 Information flow properties express the capability for an agent to infer information about secret behaviours of a partially observable system. In a language-theoretic setting, where the system behaviour is described by a language, we define the class of ...
Bérard, Béatrice, Mullins, John
core +4 more sources
Drug Testing and Analysis, EarlyView.The development and validation of a MEPS method for the purification of hair extract for the EtG determination and quantification in the keratin matrix is the main focus of this study. The method is fast and effective and, as a miniaturised technique, requires only small amounts of solvent.
Sara Odoardi +4 more
wiley +1 more source
Bird Study, 2018 Capsule: Raptor research and monitoring informs issues of relevance to human health, including environmental contamination, emerging infectious diseases and environmental change. Aims: The paper examines the relevance of raptor research and monitoring to
P. Movalli, O. Krone, D. Osborn, D. Pain
semanticscholar +1 more source
Ecography, EarlyView.Around the world, ecological communities are becoming more similar to one another in a process known as biotic homogenization – an increase in similarity among communities over time. While biotic homogenization has been widely studied among spatial communities, very little attention has been paid to beta diversity between seasonal communities ...
Peter J. Williams, Shannon R. Curley
wiley +1 more source
Updating known distribution models for forecasting climate change impact on endangered species [PDF]
, 2013 To plan endangered species conservation and to design adequate management programmes, it is necessary to predict their distributional response to climate change, especially under the current situation of rapid change.
A Castro +83 more
core +3 more sources
Ecotoxicology, 2016 Biomonitoring using birds of prey as sentinel species has been mooted as a way to evaluate the success of European Union directives that are designed to protect people and the environment across Europe from industrial contaminants and pesticides. No such
S. Espín +19 more
semanticscholar +1 more source
Nature, 1969 Peregrine Falcon Populations Their Biology and Decline. Edited by Joseph J. Hickey. (Proceedings of an International Conference sponsored by the University of Wisconsin.) Pp. xxii + 596 + 59 plates. (University of Wisconsin Press: Madison and London, February 1969.) $10; 95s.
openaire +2 more sources
Ultraviolet reflectance by the cere of raptors [PDF]
Biology Letters, 2006 Ultraviolet (UV) signals have been shown to play key roles in social and sexual signalling in birds. Using a spectrophotometer, we analysed the colour of the cere (skin above the beak) of a diurnal raptor, the Montagu's harrier (Circus pygargus), and show that it reflects in the UV part of the spectrum. The cere is a well-known sexual signal in raptors,
Mougeot, François, Arroyo, Beatriz
openaire +5 more sources
Ecography, EarlyView.Montane species utilize various habitats along elevations to adapt to seasonality, providing an ideal opportunity to study how species respond to shifting environments. This study characterizes seasonal changes in community structure and elevational distributions across multiple taxa in the Central Himalayas.
Yiming Hu +3 more
wiley +1 more source