Results 1 to 10 of about 106,782 (267)

First description of movement and ranging behavior of the Griffon vulture (Gyps fulvus) from Serbia using GPS satellite tracking [PDF]

open access: yesArchives of Biological Sciences, 2021
Understanding the movement pattern and ranging behavior of the Griffon vulture population in Serbia is of great importance for prioritizing conservation action.
Hribšek Irena   +3 more
doaj   +1 more source

New Structures, Spectrometric Quantification, and Inhibitory Properties of Cardenolides from Asclepias curassavica Seeds

open access: yesMolecules, 2022
Cardiac glycosides are a large class of secondary metabolites found in plants. In the genus Asclepias, cardenolides in milkweed plants have an established role in plant–herbivore and predator–prey interactions, based on their ability to inhibit the ...
Paola Rubiano-Buitrago   +3 more
doaj   +1 more source

Differential accumulation of cardenolides from Asclepias curassavica by large milkweed bugs does not correspond to availability in seeds or biological activity on the bug Na+/K+-ATPase

open access: yesFrontiers in Ecology and Evolution, 2023
Milkweed–herbivore systems are characterized by cardenolide chemical defenses and specialized herbivore adaptations such as physiological target site insensitivity.
Paola Rubiano-Buitrago   +6 more
doaj   +1 more source

Locating Power in Platformization: Music Streaming Playlists and Curatorial Power

open access: yesSocial Media + Society, 2020
Where does the “power” of platformization reside? As is widely recognized, platforms are matchmakers which interface between different markets or “sides.” This article analyzes platform power dynamics through three of the most important markets that ...
Robert Prey
doaj   +1 more source

The Network’s Blindspot: Exclusion, Exploitation and Marx’s Process-Relational Ontology

open access: yestripleC: Communication, Capitalism & Critique, 2012
The ‘network metaphor’ impoverishes our understanding of power. Its binary logic of inclusion/exclusion leaves it blind to relations of exploitation. However, instead of ideological critique – the standard Marxist approach - this paper reconstructs Marx ...
Robert Prey
doaj   +1 more source

Blood parasite infections in a wild population of ravens (Corvus corax) in Bulgaria

open access: yesMalaria Journal, 2018
Background Blood parasites have been studied intensely in many families of avian hosts, but corvids, a particularly cosmopolitan family, remain underexplored.
Peter Shurulinkov   +3 more
doaj   +1 more source

Variability in the estimation of ungulate group sizes complicates ecological inference

open access: yesEcology and Evolution, 2020
Foundational work has examined adaptive social behavior in animals in relation to the costs and benefits of group living. Within this context, a “group” of animals represents an organizational unit that is integral to the study of animal ecology and ...
Herbert Kasozi, Robert A. Montgomery
doaj   +1 more source

The Winner Takes it All: Risk Factors and Bayesian Modelling of the Probability of Success in Escaping from Big Cat Predation

open access: yesAnimals, 2021
The individuals engaged in predation interactions modify their adaptation strategies to improve their efficiency to reach success in the fight for survival. This success is linked to either capturing prey (predator) or escaping (prey).
Sergio Fernández Moya   +5 more
doaj   +1 more source

Deep Phenotyping of Yield-Related Traits in Wheat

open access: yesAgronomy, 2020
The complex formation of grain yield (GY) is related to multiple dry matter (DM) traits; however, due to their time-consuming determination, they are not readily accessible.
Lukas Prey, Urs Schmidhalter
doaj   +1 more source

Quantity over quality? Prey-field characteristics influence the foraging decisions of little penguins (Eudyptula minor)

open access: yesRoyal Society Open Science, 2022
Quantifying prey characteristics is important for understanding the foraging behaviour of predators, which ultimately influence the structure and function of entire ecosystems. However, information available on prey is often at magnitudes which cannot be
G. J. Sutton, J. P. Y. Arnould
doaj   +1 more source

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