Results 121 to 130 of about 3,106,667 (342)
American Journal of Botany, EarlyView.Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson +5 more
wiley +1 more source
Queens become workers: pesticides alter caste differentiation in bees
Scientific Reports, 2016 AbstractBees are important for the world biodiversity and economy because they provide key pollination services in forests and crops. However, pesticide use in crops has adversely affected (decreased) queen production because of increased mortality among larvae.
Dos Santos, CF +4 more
openaire +3 more sources
Australian Journal of Social Issues, EarlyView.ABSTRACT This qualitative study examines the aspirations, motivations and support needs of 15 young parents in South Australia with experiences of out‐of‐home care (OOHC) or homelessness. Most participants aimed to delay parenting to achieve financial stability, education and personal development, but faced unplanned pregnancies due to inadequate ...
Tim Moore, Stewart McDougall
wiley +1 more source
Lattice fence and hedge barriers around an apiary increase honey bee flight height and decrease stings to people nearby [PDF]
, 2014 Urban beekeeping is becoming more popular in the UK. One of the challenges faced by urban beekeepers is finding a suitable apiary location. Honey bees are often perceived as a nuisance, mainly due to their stinging behaviour. Here, we experimentally test
ALTON K +6 more
core +1 more source
ZSF1 lean rats – How healthy are they?
Animal Models and Experimental Medicine, EarlyView.This study aimed to examine the health status, specifically the physiology and myocardial, vascular, and skeletal muscle function of lean ZSF1 rats by comparing them to age‐ and sex‐matched Wistar rats. Compared to Wistar controls, ZSF1 lean rats exhibited lower body weight, but showed increased heart, and skeletal muscle mass.
Antje Schauer +4 more
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.Membrane‐active peptides (MAPs) such as cell‐penetrating peptides (CPPs) and antimicrobial peptides (AMPs) can translocate across lipid membranes and create membrane pores. The combination of a dye efflux and a supramolecular tandem membrane assay in a dual‐channel format enables an advanced mechanistic characterization and an exploration of the ...
Mohammad A. Alnajjar +8 more
wiley +1 more source
The Anatomical Record, EarlyView.Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati +3 more
wiley +1 more source
Concurrent Parasitism Alters Thermoregulation in Honey Bee (Hymenoptera: Apidae) Winter Clusters [PDF]
, 2017 Thermoregulation is crucial for honey bee, Apis mellifera L. (Hymenoptera: Apidae), colony survival in temperate regions, but possible interference by parasites is currently unknown. The small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae),
Neumann, Peter +3 more
core
Why do honey bee workers destroy each other’s eggs? [PDF]
Journal of Biosciences, 2004 Hamilton’s theory of inclusive fitness predicts that in polyandrous colonies of social Hymenoptera, workers should prevent each other from reproducing and prefer to rear the queen’s sons rather than their nephews. This is because, in polyandrous colonies, unlike in monandrous colonies, workers are expected to be more closely related to their brothers ...
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli +6 more
wiley +1 more source