Results 101 to 110 of about 132,306 (400)
Sex-biased parental care and sexual size dimorphism in a provisioning arthropod [PDF]
The diverse selection pressures driving the evolution of sexual size dimorphism (SSD) have long been debated. While the balance between fecundity selection and sexual selection has received much attention, explanations based on sex-specific ecology have ...
A Herrel+87 more
core +1 more source
An Extreme Case of Plant–Insect Codiversification: Figs and Fig-Pollinating Wasps
It is thought that speciation in phytophagous insects is often due to colonization of novel host plants, because radiations of plant and insect lineages are typically asynchronous.
A. Cruaud+28 more
semanticscholar +1 more source
You may be interested to know that whilst starting up a motor-cycle a few days since, I accidentally discovered that benzol sprayed over a wasp instantly killed it. I tried the same experiment with petrol with the same result.
openaire +3 more sources
The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi+8 more
wiley +1 more source
Abstract During 1925–26 and 1928, debates about birth control took place in the readers' column of North Star (Gwiazda Polarna), a US Polish language weekly. These discussions provide a rare insight into how ideas spread by the US birth control movement were received by an immigrant and ethnic working‐class Catholic community.
Sylwia Kuźma‐Markowska
wiley +1 more source
WASP-169, WASP-171, WASP-175 and WASP-182: three hot Jupiters and one bloated sub-Saturn mass planet discovered by WASP-south [PDF]
We present the discovery of four new giant planets from \WASP, three hot Jupiters and one bloated sub-Saturn mass planet; WASP-169b, WASP-171b, WASP-175b and WASP-182b. Besides the discovery photometry from \wasp\ we use radial velocity measurements from CORALIE and HARPS as well as follow-up photometry from EulerCam, TRAPPIST-North and -South and ...
arxiv +1 more source
Behavior at a Nesting Site and Prey of \u3ci\u3eCrabro Cribrellifer\u3c/i\u3e (Hymenoptera: Sphecidae) [PDF]
In Michigan, Crabro cribrellifer tends to show nest clumping within a nest aggregation. Its nesting behavior is similar to that of other Crabro, and it preys on Neoitamus flavofemoratus (Diptera: Asilidae) on warm days in July.
Barrows, Edward M+2 more
core +2 more sources
BackgroundUnderstanding how alternative phenotypes arise from the same genome is a major challenge in modern biology. Eusociality in insects requires the evolution of two alternative phenotypes - workers, who sacrifice personal reproduction, and queens ...
Pedro G. Ferreira+6 more
semanticscholar +1 more source
Spring and Power in Hovering Ornithopters
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau+4 more
wiley +1 more source
Spatio‐temporal shifts in British wild bees in response to changing climate
Climate plays a major role in determining where species occur, and when they are active throughout the year. In the face of a changing climate, many species are shifting their ranges poleward.
Chris Wyver+4 more
doaj +1 more source