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Items tagged with: insects

A queen Texas leafcutter ant in the fungus garden.

#Atta #ants #QueenAnts #Insects

#insects #ants #queenants #atta

Quite specific, but a very interesting article about #ants and their early evolution. The authors propose a 3 step scenario based on fossils and their interpretation. Really fascinating !

biorxiv.org/content/10.1101/20…

#insects #nature #ecology #fossil #paleontology #entomology

screenshot of the name of the article and its authors : Evolution and systematics of the Aculeata and kin (Hymenoptera), with emphasis on the ants (Formicoidea: †@@@idae fam. nov., Formicidae) Brendon E. Boudinot, Ziad Khouri, Adrian Richter, Zachary H. Griebenow, Thomas van de Kamp, Vincent Perrichot, Phillip Barden

Evolution and systematics of the Aculeata and kin (Hymenoptera), with emphasis on the ants (Formicoidea: †@@@idae fam. nov., Formicidae)

Fossils provide unique opportunity to understand the tempo and mode of evolution and are essential for modeling the history of lineage diversification.
bioRxiv
#nature #ecology #insects #entomology #paleontology #fossil #ants

Never done a proper #introduction since opening my #Mastodon account in early October so here we go

I'm an ecologist based in Berlin and I currently work on #lightpollution & its effects on #insects. I have also worked on a range of other topics in #ecology like #foodwebs & #invasivespecies

I'm also an editorial board member at the journal Oikos & a working group speaker for science communication at the Leibniz Postdoc Network

Looking forward to expand my #Mastodon community in 2023

Street light with insect trap after sunset
#mastodon #introduction #ecology #insects #lightpollution #invasivespecies #foodwebs

Turns out that day-calling #crickets (as opposed to night-calling species) tune their #chirps to avoid the same #bandwidth as other nosy #insects (like #cicadas). We know #birds do this type of thing ("#acoustic #niche partitioning"). Interesting to see it in insects.

Title: The #circadian calling activity of a lebinthine cricket with high-frequency calls is unaffected by cicada choruses in the day

Link: peerj.com/articles/14641/

Fig 2 from the linked paper. Text from the figure heading is as follows: "Calls, calling activity patterns and the frequency partitioning of crickets and cicadas in Singapore. Calls and calling activity patterns of crickets and cicadas in Singapore. One hour spectrogram showing the transition from nocturnally singing crickets (band at ~6 kHz) to the “cicada ^” dawn chorus and the diurnally singing Purana sp. cicada and Lebinthus luae cricket (A). Insets (B–E) show short timescale spectrograms of the calls of the most common singing insects in the recording. The wav.file for this 1 h spectrogram is available as Data S1. Calling activity of L. luae around sunrise based on field data (green line) and data collected from isolated males in the laboratory (blue line) (F). The presence of negative values for the standardised number of echemes per hour is due to the standardisation so that the laboratory and field recordings were comparable. The polygons bordering the line represent the 95% confidence interval. Grey shade represents night-time; white shade represents daytime. A GAMM with gaussian error structure was fitted, with R2 = 0.53. Boxplots comparing the frequencies of the fourth harmonics of the cicada choruses and the dominant frequency of L. luae calls (G). Thick horizontal bar shows the median; lower and upper margin of the box indicate the inter-quartile range and whiskers refer to minimum and maximum data points."

The circadian calling activity of a lebinthine cricket with high-frequency calls is unaffected by cicada choruses in the day

Background Many factors can influence circadian rhythms in animals. For acoustically communicating species, both abiotic cues (such as light and temperature) and biotic cues (such as the activity of other animals), can influence the timing of signall…
PeerJ
#birds #insects #crickets #chirps #bandwidth #cicadas #acoustic #niche #circadian

We're hiring a postdoc to study host-microbe interactions! Our integrative research program studies how the world's most common bacterial endosymbiont has become so successful. Much of it is to do with the bacteria's ability to make its host's sex lives all about them. If you think this sounds interesting, consider applying! Details are here: shropshirelab.com/job/postdoct….
@jobsecoevo #ScienceJobs #PostdocJob #EcoEvo #CellBiology #Genetics #Symbiosis #Bacteria #Insects #Wolbachia #Drosophila
Wasp testes infected with Wolbachia bacteria. Blue is host nuclei and red is the bacteria.

Postdoctoral Scholar of Host-Microbe Interactions

The Shropshire Lab (Lehigh University, Pennsylvania) is seeking a highly motivated Postdoctoral researcher to study host-microbe interactions.
https://shropshirelab.com/author/j-dylan-shropshireprotonmail-com/#author (My WordPress)
#bacteria #insects #drosophila #wolbachia #symbiosis #genetics #CellBiology #ecoevo #postdocjob #ScienceJobs @u/jobsecoevo

This is a mosaic gynandromorph. I think bilateral gynandromorph images are shared more frequently—maybe because bilateral gynandromorphs are more obvious? Anyway, females of this species of velvet-ant are almost entirely orange-ish. The black head on this specimen looks like the males of the species. Also, in this family of insects, only males have ocelli (simple eyes) on the top of the head.

#Insects #Macrophotography

Dorsal view of a pinned velvet-ant. These are wasps in the family Mutillidae. The body is predominately ferruginous (or orangish) but the head is black. Simple eyes, or ocelli, are visible on the head.
#macrophotography #insects

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