Results 171 to 180 of about 219,835 (350)

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford   +3 more
wiley   +1 more source

New country record for Tetramereia convexa (Harold, 1869) (Coleoptera: Scarabaeidae: Scarabaeinae) [PDF]

open access: yes, 2013
Tetramereia convexa (Harold, 1869) (Coleoptera: Scarabaeidae: Scarabaeinae) is reported for the first time from Loreto in Peru, being the western most record of the species in South America.Tetramereia convexa (Harold, 1869) (Coleoptera: Scarabaeidae ...
Ampudia Gatty, Christian   +2 more
core  

Sanitary Logging in the Monarch Butterfly Biosphere Reserve: One Problem, One Legislation but Different Criteria and Different Treatments

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Bark beetles are small insects that inhabit the bark of trees. When their population increases excessively, they can weaken the trees and cause their death. In México, federal regulations obligate forest landowners to carry out sanitary logging to control bark beetle outbreaks in adherence to official procedures.
Erika Gómez‐Pineda   +3 more
wiley   +1 more source

Setting people in their environment: plant and animal remains from Anglo-Scandinavian York [PDF]

open access: yes, 2004
INTRODUCTION: For the past millennium, the inhabitants of the centre of York have, whether hey knew it or not, been living on top of a compost heap in which are preserved all kinds of remains of Anglo-Scandinavian and early post-conquest life.
Hall, A., Kenward, H.
core  

The Dung Beetle Compass [PDF]

open access: bronze, 2018
Marie Dacke, Basil el Jundi
openalex   +1 more source

Stimuli‐Responsive 3D‐Printed Structurally Colored Materials Based on Core–Shell Particle Architectures

open access: yesMacromolecular Materials and Engineering, EarlyView.
A novel, structurally colored and pH‐responsive filament for FDM 3D‐printing is presented, which is based on tailored core–shell particles with methacrylic acid as a comonomer in the particle shell. The pH‐responsiveness of the printed objects is achieved due to particle swelling in alkaline conditions.
Sascha Verwaayen   +6 more
wiley   +1 more source

A Scarab Feeding on Another Scarab: First Observation of Necrophagy by Canthon histrio (Saint-Fargeau & Audinet-Serville, 1828) on a Dead Passalidae

open access: yesEntomological Communications
Besides the widely known behavior of Atta predation by Canthon spp., knowledge of the dietary range of Canthon species is scarce. This note documents the first observation of necrophagy by the dung beetle Canthon histrio on a recently dead Passalidae ...
Clemensou Dos-Reis   +2 more
doaj   +1 more source

Variation in pollen limitation among reproductive modules points to likely resource reallocation in the alpine plant Veratrum grandiflorum

open access: yesNordic Journal of Botany, EarlyView.
Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang   +6 more
wiley   +1 more source

Social Choice and Cultural Bias [PDF]

open access: yes, 1983
These three essays are the fruits of a little Winter Study, in December 1981, which enabled Mary Douglas and James Douglas (both of Northwestern University, Illinois, USA) to visit the System and Decision Sciences area at IIASA, there to collaborate on ...
Douglas, J., Douglas, M., Thompson, M.
core  

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