Results 11 to 20 of about 2,318,051 (294)

Obesity stigma as a globalizing health challenge

open access: yesGlobalization and Health, 2018
Background Based on studies conducted in the global north, it is well documented that those who feel stigmatized by overweight/obesity can suffer extreme emotional distress, be subject to (often legal and socially-acceptable) discrimination, and adjust ...
Alexandra Brewis   +2 more
doaj   +1 more source

Relaxed selection underlies genome erosion in socially parasitic ant species

open access: yesNature Communications, 2021
Many obligate symbionts, including parasites, have reduced genomes. A comparison of leaf-cutter ant genomes reveals parallel gene losses, particularly in olfactory receptors, in socially parasitic species compared to their closely-related hosts ...
Lukas Schrader   +9 more
doaj   +1 more source

Proteomics reveals synergy between biomass degrading enzymes and inorganic Fenton chemistry in leaf-cutting ant colonies

open access: yeseLife, 2021
The symbiotic partnership between leaf-cutting ants and fungal cultivars processes plant biomass via ant fecal fluid mixed with chewed plant substrate before fungal degradation.
Morten Schiøtt, Jacobus J Boomsma
doaj   +1 more source

Hormonal pleiotropy helps maintain queen signal honesty in a highly eusocial wasp

open access: yesScientific Reports, 2017
In insect societies, both queens and workers produce chemicals that reliably signal caste membership and reproductive status. The mechanisms that help to maintain the honesty of such queen and fertility signals, however, remain poorly studied.
Ricardo Caliari Oliveira   +6 more
doaj   +1 more source

Host plant use drives genetic differentiation in syntopic populations of Maculinea alcon [PDF]

open access: yesPeerJ, 2016
The rare socially parasitic butterfly Maculinea alcon occurs in two forms, which are characteristic of hygric or xeric habitats and which exploit different host plants and host ants.
András Tartally   +3 more
doaj   +2 more sources

Robustness, vulnerability, and adaptive capacity in small-scale social-ecological systems: The Pumpa Irrigation System in Nepal

open access: yesEcology and Society, 2010
Change in freshwater availability is arguably one of the most pressing issues associated with global change. Agriculture, which uses roughly 70% of the total global freshwater supply, figures prominently among sectors that may be adversely affected by ...
Oguzhan Cifdaloz   +3 more
doaj   +1 more source

Hydrocarbon Signatures of the Ectoparasitoid Sphecophaga vesparum Shows Wasp Host Dependency

open access: yesInsects, 2020
Sphecophaga vesparum often parasitizes nests of vespid wasps such as Vespula vulgaris and Vespula germanica. Inside the colonies, the ectoparasitic larvae feed on the immature forms of the wasps. There are two adult forms of S. vesparum.
Cintia Akemi Oi   +3 more
doaj   +1 more source

Hard paths, soft paths or no paths? Cross-cultural perceptions of water solutions [PDF]

open access: yesHydrology and Earth System Sciences, 2014
In this study, we examine how development status and water scarcity shape people's perceptions of "hard path" and "soft path" water solutions. Based on ethnographic research conducted in four semi-rural/peri-urban sites (in Bolivia, Fiji, New Zealand ...
A. Wutich   +5 more
doaj   +1 more source

The Genome and Methylome of a Subsocial Small Carpenter Bee, Ceratina calcarata [PDF]

open access: yes, 2016
Understanding the evolution of animal societies, considered to be a major transition in evolution, is a key topic in evolutionary biology. Recently, new gateways for understanding social evolution have opened up due to advances in genomics, allowing for ...
Glastad, Karl M.   +3 more
core   +2 more sources

From the Guest Editors

open access: yesMathematical Biosciences and Engineering, 2009
Those of us who met the field of mathematical biology as a well-developed,flourishing, and rewarding discipline owe much to those who made it so.This special issue of Mathematical Biosciences and Engineering isdedicated to two such pioneers: Fred Brauer
Carlos Castillo-Chávez   +3 more
doaj   +1 more source

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