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Massimo Martini

@entomassi.bsky.social

Entomologist | PhD @ Uni Freiburg 🐝 Insect ecology & multitrophic interactions 🌿 Food web dynamics in growing forests 📸 Macrophotography

72 Posts174 Follower232 Folgt
Alexander Lees@alexanderlees.bsky.social · 3w ago

Our new commentary rdcu.be/ftx6h in @natecoevo.nature.com written with folks from @inaturalist.bsky.social and @cornellbirds.bsky.social shows that use of AI to manipulate existing or create new wildlife images undermines the huge value of vast citizen science databases. 🌍🪰🪶 #Ornithology 🧵 1/10

Citizen science platforms must mitigate against the threat of generative AI

Nature Ecology & Evolution - Citizen science platforms must mitigate against the threat of generative AI

rdcu.be

Brian J. Enquist@bjenquist.bsky.social · last mo.

Impressive efforts and intriguing results. So good to see this hard work from the ACG in Guanacaste Costa Rica out …. Global “insect diversity estimate of 14 to 20 million species—two to three times the current consensus” #biodiversity 🌐🧪

🍁 Alex Smith 🍁@alexsmithants.bsky.social · last mo.

🧪🧵 🪰 🐜🪲🐞🦗🐛🦋🪳🦟 How many species of insect are there?  A seemingly simple question, but one that has been 'bugging' scientists for years.  Our work out today suggests that there are millions more than we had previously expected.  doi.org/10.1073/pnas... @gdfcf.bsky.social

This photo was taken in Area de Conservacion Guanacaste
Brian J. Enquist@bjenquist.bsky.social · last mo.

Unprecedented Amazonian rainforest damage during the 2023–2024 droughts ... "...these forests are approaching the limits of their preindustrial operating space." 🧪🌾🌐https://www.pnas.org/doi/abs/10.1073/pnas.2514066123

Unprecedented Amazonian rainforests damage during the 2023–2024 droughts | PNAS

Between 2023 and 2024, Amazonian rainforests experienced two consecutive, record-breaking droughts—each more intense than any previously observed—y...

pnas.org

Catarina Siopa@catarinasiopa.bsky.social · 2mo ago

Super happy to share this one! in @pnas.org Using a dataset on pollination deficits (PL) in crops, despite widespread PL (~35%), an overall decline is observed overtime! 🌍 (see below for more) Grateful for the amazing team behind this 🎉

FLOWer Lab 🌸🍒 🐝 🪰🔬🧬@flowerlab.bsky.social · 2mo ago

🐝New FLOWer Lab paper in @pnas.org, led by @catarinasiopa.bsky.social, in close collaboration with Marcelo Aizen, and Agustín Sáez A meta-analysis of 86 pollinator-dependent crops shows that pollination limitation remains widespread, but has declined by ~50% since the 1950s doi.org/10.1073/pnas...

Massimo Martini@entomassi.bsky.social · 3mo ago

Happy #worldbeeday! 🐝 As of today, we have a new paper out where we explore the reproductive behaviour of a Mediterranean bee species within green #urban areas 🏘🌿 with strong implications for urban bee research! doi.org/10.1007/s112...

Local conditions drive quantity-oriented reproductive strategies and pollen diet of a solitary cavity-nesting bee in a Mediterranean peri-urban environment - Urban Ecosystems

Green areas in urban and peri-urban landscapes are increasingly recognized as important habitats for wild bees, but the extent to which species adjust their reproductive behavior to local conditions in these environments remains poorly studied. We studied the reproductive output, offspring’s body size, sex allocation, and larval diet (assessed using pollen morphology and DNA metabarcoding) of the solitary bee Osmia caerulescens (Linnaeus, 1758) in a Mediterranean peri-urban environment using trap nests and local-scale environmental descriptors. Based on a total of 215 nests and 648 brood cells, females increased their reproductive output with greater floral resource availability and increasing openness of the habitat, but this was accompanied by a reduction in offspring body size (ITD) and a sex allocation skewed toward males. These findings are consistent with a trade-off between offspring number and per-offspring investment and contrary to general expectations that higher resource availability should favor larger and more female-biased offspring. Together, these responses indicate a shift toward quantity-oriented reproductive strategies, in contrast to patterns reported for this species in agricultural systems, where higher resource availability is typically associated with greater per-offspring investment and more female-biased sex ratios. Pronounced among-site variation in pollen diet, reflecting differences in local floral resource composition, further highlights how use of floral resources varies at a fine spatial scale and may shape reproductive strategies and, ultimately, population persistence. Our results show that the ecological value of urban habitats for solitary bees depends not only on the amount of floral resources available, but also on how local conditions influence species-specific reproductive responses. These findings highlight the value of species-specific reproductive analyses in abundant, functionally important solitary bees as a complementary approach to evaluating habitat quality at local scales in urban and peri-urban environments. Understanding how solitary bees adjust reproductive strategies to urban conditions is essential for supporting their conservation and long-term persistence in urban green spaces.

doi.org

Jen Cross@jencross.bsky.social · 4mo ago

We noticed these fruit flies are behaving like tiny big horn sheep of fly world so we went back today to see if I could get some photos of the action. Here you have it, a play in 4 acts! Make me wonder if they evolved the elongated eyes for this purpose. Zygothrica sp. Intag Refugio, Ecuador

A pair of flies smashing their heads together with front legs clasped. The have black on the abdomen, brown on the thorax, and bright red eyes, They are fighting on the top of a mushroom.The fight continues with the challengers evenly balanced. A pair of flies smashing their heads together with front legs clasped. The have black on the abdomen, brown on the thorax, and bright red eyes, They are fighting on the top of a mushroom.The fight continues with the fly on the right seeming to gain an upper hand and pushing the fly on the left backwards. The fly on the right is putting all his might into the battle, back legs in the air. A pair of flies smashing their heads together with front legs clasped. The have black on the abdomen, brown on the thorax, and bright red eyes, They are fighting on the top of a mushroom.The fly on the right emerges victorious with the fly on the left exiting toward the back of the scene. A pair of flies smashing their heads together with front legs clasped. The have black on the abdomen, brown on the thorax, and bright red eyes, They are fighting on the top of a mushroom.
Markus Eichhorn@markuseichhorn.bsky.social · 4mo ago

This might be the best idea for a special issue ever. Did you attempt an ecological intervention that failed or went catastrophically wrong? Let's hear about it and learn from it. 🌏🧪🌲🌳🌐

Ecol. Solutions & Evidence | Applied Ecol. Resources@aer-ese-bes.bsky.social · 4mo ago

We're accepting proposals for our Special Feature! We invite scientists and practitioners to share experiences from management projects that didn't go to plan, but still provided important insights into how best to manage ecosystems and species🌱 ⏰Submit by 30th April More here👇 buff.ly/EXXBFsJ

Romain Bertrand@romainbertrand.bsky.social · 5mo ago

Happy to see this work finally out in @globalchangebio.bsky.social ! With @xaviermorin.bsky.social we showed that species richness is a key factor for the stability of forest biomass production 🌲 onlinelibrary.wiley.com/doi/10.1111/...

Biodiversity Insurance of Forest Productivity Has Strengthened Under Recent Climate Change

Using data from forests across France, we show that forests with a greater diversity of tree species are better able to maintain their productivity as conditions become drier due to climate change. H...

onlinelibrary.wiley.com

Florian Schnabel@mixedforests.bsky.social · 5mo ago

This is a publication I believe all ecologists should read and discuss. How often have you asked yourself: Are we impactful enough in times of multiple environmental crises? A collaborative effort of #ANdiNa besjournals.onlinelibrary.wiley.com/doi/10.1002/...

Strengthening responsibilities to face global crises: A call to ecologists, environmental scientists and their societies

Read the free Plain Language Summary for this article on the Journal blog.

besjournals.onlinelibrary.wiley.com

Julia Koricheva@juliakoricheva.bsky.social · 7mo ago

Ecological insights from three decades of forest biodiversity experiments @natrevbiodiv.nature.com www.nature.com/articles/s44...

Ecological insights from three decades of forest biodiversity experiments - Nature Reviews Biodiversity

Experiments manipulating tree species diversity and measuring effects on ecosystem function have been important tools for assessing how biodiverse forests can accumulate biomass, store carbon and help...

nature.com