Results 81 to 90 of about 104,858 (329)

A review of the relationship between eggshell colour and water vapour conductance [PDF]

open access: yes, 2011
This review brings together the available literature that examines the effect of variations in pigmentation on the gas conductance of avian eggshells. Pheasant and Houbara bustard eggs provide some evidence that shell abnormalities can impact upon colour
Baggott G.K.   +14 more
core   +1 more source

Consensus Formation and Change are Enhanced by Neutrality

open access: yesAdvanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag   +3 more
wiley   +1 more source

Quantifying the relative predation pressure on bumblebee nests by the European badger (Meles meles) using artificial nests

open access: yesEcology and Evolution, 2020
Bumblebee populations are declining. Factors that impact the size and success of colonies act by either limiting resource availability (bottom‐up regulation) or causing mortality, for example, pesticides, disease, and possibly predation (top‐down ...
Bethany R. Roberts   +2 more
doaj   +1 more source

Artificial nest experiment reveals inter-guild facilitation in duck nest predation

open access: yesGlobal Ecology and Conservation, 2020
Predation is the most important factor limiting Northern Hemisphere duck nest survival. While most avian nest predators take only eggs, mammalian predators also pose mortality risks to incubating ducks.
Sari Holopainen   +2 more
doaj   +1 more source

Lichens in the nests of European starling Sturnus vulgaris serve a mate attraction rather than insecticidal function [PDF]

open access: yes, 2018
The European starling Sturnus vulgaris is a hole-nesting bird in which the male builds a voluminous nest using a wide variety of materials such as twigs, grass, leaves, feathers, and lichens.
Fiorini, Vanina Dafne   +3 more
core   +1 more source

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

open access: yesAdvanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou   +22 more
wiley   +1 more source

Invasive Wild pigs as primary nest predators for Wild turkeys [PDF]

open access: yes, 2020
Depredation of wild turkey (Meleagris gallopavo) nests is a leading cause of reduced recruitment for the recovering and iconic game species. invasive wild pigs (Sus scrofa) are known to depredate nests, and have been expanding throughout the distributed ...
Hewitt, David G.   +4 more
core   +1 more source

Survival and Growth of American Alligator (Alligator mississippiensis) hatchlings after artificial incubation and repatriation [PDF]

open access: yes, 2006
Hatchling American Alligators (Alligator mississippiensis) produced from artificially incubated wild eggs were returned to their natal areas (repatriated).
Kubilis, Paul S.   +4 more
core   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

open access: yesAdvanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen   +7 more
wiley   +1 more source

Frog foams and natural protein surfactants [PDF]

open access: yes, 2017
Foams and surfactants are relatively rare in biology because of their potential to harm cell membranes and other delicate tissues. However, in recent work we have identified and characterized a number of natural surfactant proteins found in the foam ...
Cooper, Alan   +3 more
core   +1 more source

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