Results 131 to 140 of about 85,527 (318)
Ant venoms contain many small, linear peptides, an untapped source of bioactive peptide toxins. The control of agricultural insect pests currently depends primarily on chemical insecticides, but their intensive use damages the environment and human ...
John Heep +6 more
doaj +1 more source
Primer Frenguelliidae (Insecta: Odonata) del Eoceno de Río Pichileufú, Patagonia, Argentina [PDF]
Se describe un nuevo género, Treintamilun gen. nov., basado en Treintamilun vuelvenlucha sp. nov. de la localidad de Río Pichileufú (Luteciano), Provincia de Río Negro, Patagonia, Argentina. El nuevo género se asigna a Frenguelliidae.
Petrulevicius, Julian Fernando
core
New Distribution Records of Ground Beetles From the North Central United States (Coleoptera: Carabidae) [PDF]
We report 39 ground beetles new to five states in the upper midwestern United States. These species records include 19 new to Illinois (all but one from Lake County), 11 from Iowa, three from South Dakota, eight from Wisconsin, and two from Michigan ...
Chin-Ting Lee, Jana +3 more
core +2 more sources
Novel Worker‐Like Behavior Observed in Gynes of the Social Parasite Tetramorium microgyna
Our article reports, to our knowledge, the first observations of inquiline gynes performing worker tasks for their host colony. We dissected these gynes to establish that they were all unmated. We hypothesize that nest excavation by social parasites represents an artifact of a non‐parasitic past.
François Brassard, Christina Kwapich
wiley +1 more source
Supplemental feeding as experimental tool to understand why birds do not lay earlier in the season
The timing of avian reproduction might be affected by the costs of egg production in early spring. To study these costs, supplemental feeding experiments have been conducted where birds are provided with food prior to egg laying. We discuss the opportunities and pitfalls of such experiments.
Christiaan Both, Marcel E. Visser
wiley +1 more source
Cuticular hydrocarbons and collective response to water stress in a desert ant
Read the free Plain Language Summary for this article on the Journal blog. Abstract With the accelerating pace of climate change, we urgently need to understand how physiological traits shape behavioural plasticity in response to environmental stress.
Florian Menzel +3 more
wiley +1 more source
Allometry of Workers of the Fire Ant, Solenopsis invicta [PDF]
The relationship between worker body size and the shape of their body parts was explored in the polymorphic ant, Solenopsis invicta. The data consisted of 20 measurements of body parts as well as sums of some of these measurements.
Mikheyev, Alexander S. +2 more
core +2 more sources
Adjusted mowing dates and, in productive grasslands, an increased mowing frequency may benefit grassland arthropod communities under current environmental conditions. Abstract Arthropod diversity is rapidly declining in semi‐natural grasslands. Among the driving factors are nitrogen deposition and climate change, which typically increase vegetation ...
Wiene Bakker +9 more
wiley +1 more source

