Results 21 to 30 of about 2,328 (115)

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa   +8 more
wiley   +1 more source

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

open access: yesEcological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito   +13 more
wiley   +1 more source

Unexpected Evolutionary Divergence of Tachykinin‐Positive Neurons Innervating the Central Complex in Hexapods

open access: yesJournal of Comparative Neurology, Volume 534, Issue 3, March 2026.
The central complex is a group of midline‐spanning neuropils in the brain of insects with a key role in goal‐directed orientation and navigation. Immunolabeling in 25 species, ranging from bristletails to flies, shows that neurons containing peptides of the tachykinin family of neuropeptides are present in most species studied.
Uwe Homberg   +8 more
wiley   +1 more source

Inconsistent effects of P enrichment and predator presence on food‐web dynamics in a bromeliad system

open access: yesOikos, Volume 2026, Issue 3, March 2026.
Food webs consist of trophic interactions of variable strength. However, it remains challenging to predict how changes in environmental conditions, such as nutrient enrichment, can affect these interactions. In this paper, we propose to integrate food web theory with ecological stoichiometry, which predicts how elemental ratios affect trophic ...
Pierre Rogy   +6 more
wiley   +1 more source

Pests for Dinner: Dietary Composition of Insectivorous Bats in a Fragmented Tropical Dry Forest

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Insectivorous bats are key predators of a wide array of arthropods, including species that act as disease vectors and pests, yet such ecological roles remain poorly studied in tropical regions. In this study, we aimed to describe the diet of five insectivorous bat species from the genera Balantiopteryx, Myotis, Mormoops, and Pteronotus inhabiting a ...
Mónica Izquierdo‐Suzán   +4 more
wiley   +1 more source

Toward a global repository of insect traits (GRIT)

open access: yesInsect Conservation and Diversity, Volume 19, Issue 2, Page 253-267, March 2026.
Biodiversity loss is accelerating, yet insect conservation is hindered by the absence of a centralised, comprehensive trait database. We propose the GRIT, a FAIR, open‐access platform uniting datasets and collaborators worldwide. GRIT will harness advanced computational tools for trait acquisition and imputation, enabling large‐scale ecological ...
Pedro Cardoso   +37 more
wiley   +1 more source

Social media highlights the overlooked impact of cats on arthropods

open access: yesInsect Conservation and Diversity, Volume 19, Issue 2, Page 460-465, March 2026.
The impact of domestic cats on vertebrate biodiversity is unequivocal; however, we still know little about their effects on arthropods. By analysing over 17,000 photos and videos from social media platforms (iStock and TikTok), we documented 550 predation events of cats on arthropods.
Leticia Alexandre, Raul Costa‐Pereira
wiley   +1 more source

Ephemeropteran and Trichopteran Assemblages Vary Across a Subtropical Rainforest Altitudinal Gradient: Useful Indicators for Climate Change

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
This figure provides the elevation distribution of Trichoptera and Ephemeroptera across the elevational gradient and clearly shows how specific morphospecies can be used as indicators. ABSTRACT The subtropical rainforests of eastern Australia are expected to be greatly affected by climate change, with several studies predicting an upward shift in ...
D. Pagotto   +3 more
wiley   +1 more source

A Regional DNA Barcode Library for Northern Rocky Mountain Arthropods to Support Biodiversity and Molecular Ecological Research

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
We developed the MPG Ranch Arthropod Library (MPG‐AL), a COI DNA barcode reference library for arthropods of the Northern Rocky Mountains, to address gaps in barcode coverage for the western United States. From 86,533 specimens collected in Montana, we generated 52,270 DNA barcodes spanning 38 orders and 1793 species, adding 5154 Barcode Index Numbers (
Mathew T. Seidensticker   +3 more
wiley   +1 more source

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