Results 31 to 40 of about 7,291 (184)

Anatomy of a Neotropical insect radiation

BMC Evolutionary Biology, 2018
BackgroundMuch evolutionary theory predicts that diversity arises via both adaptive radiation (diversification driven by selection against niche-overlap within communities) and divergence of geographically isolated populations. We focus on tropical fruit
I. Winkler, S. Scheffer, M. Lewis, K. Ottens, Andrew P. Rasmussen, G. A. Gomes-Costa, Luz Maria Huerto Santillan, M. Condon, A. Forbes   +8 more
semanticscholar   +1 more source

Embryogenesis in Myrmicine Ants Combines Features of Short Germ‐Band Development With a Progressive Mode of Segmentation

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Chi‐Chun Fang, Arjuna Rajakumar, Andrew Kenny, Ulrich G. Mueller, Ehab Abouheif, David Stein   +5 more
wiley   +1 more source

Functional and phylogenetic beta diversity response of nocturnal moth assemblages to land‐use intensity in grasslands and forests

Oikos, EarlyView.
Land‐use intensification is filtering for species, able to cope with anthropogenic landscapes. This was assumed to result in functionally and phylogenetically homogenous communities, but a recent meta‐analysis could not confirm a consistent homogenization response to human pressure and raises open questions.
Marcel Püls, Rafael Achury, Lea Heidrich, Sebastian Seibold, Hermann Hacker, Oliver Mitesser, Anne Chao, Christoph Heibl, Lukas Stopfer, Wolfgang Weisser, Jörg Müller   +10 more
wiley   +1 more source

Proteolytic stabilization of a spider venom peptide results in an orally active bioinsecticide

Pest Management Science, EarlyView.
Selective editing out of an insect gut protease cleavage site renders a spider‐derived insecticidal peptide active by ingestion by insect pests. Abstract BACKGROUND The toxin peptide U1‐AGTX‐Ta1b from the Hobo spider, Eratigena agrestis (Walckenaer, 1802), was studied to determine its potential to serve as a bioinsecticide.
Breck R. Davis, Alexandra M. Haase, Joseph S. Tourtois, Daniel L. Hulbert, Rachel E. Cornell, Brian T. DeVree, Cadence J. Flohrschutz, Lucille M. Bell, Daniel C. Peck, Trang T. Nguyen, Lin Bao, Robert M. Kennedy, Kyle D. Schneider   +12 more
wiley   +1 more source

Side effects of pesticides used in organic and conventional tomato crops on Dolichogenidea gelechiidivoris, a parasitoid of Tuta absoluta

Pest Management Science, EarlyView.
This study reveals strong variability in the effects of eight tomato integrated pest management‐compatible pesticides on Dolichogenidea gelechiidivoris, identifying harmful compounds such as spinosad and more selective ones such as sulfur and spiromesifen, depending on the exposure route.
Pablo Urbaneja‐Bernat, Jordi Riudavets, Gabriele Caporusso, Judit Arnó   +3 more
wiley   +1 more source

Serial block-face scanning electron microscopy sheds new light on the head anatomy of an extremely miniaturized insect larva (Strepsiptera)

Arthropod Systematics & Phylogeny, 2016
Serial cross sections (80 nm) and an image stack (353 sections) of the head of the extremely miniaturized first instar larvae of Stylops ovinae (Stylopidae) were obtained with serial block-face scanning electron microscopy. This approach made it possible
Pieter Knauthe, R. Beutel, T. Hörnschemeyer, H. Pohl   +3 more
semanticscholar   +1 more source

Ergonomic Evaluation of a Walk‐Behind AI‐Based Cotton Fertilizer Applicator

Journal of Field Robotics, EarlyView.
ABSTRACT The mechanization of agricultural operations greatly influences both the efficiency of farming operations and the health and safety of farm workers. Human exposure to working environments represents a significant hazard associated with machines and the environment.
Arjun Chouriya, Peeyush Soni, Smrutilipi Hota, E. V. Thomas   +3 more
wiley   +1 more source

A black-and-red stick insect from the Philippines – observations on the external anatomy and natural history of a new species of Orthomeria

ZooKeys, 2016
A new stick insect of the genus Orthomeria Kirby, 1904 (Phasmatodea, Aschiphasmatidae) is described from the Philippines. Orthomeria (Orthomeria) kangi sp. n.
D. Vallotto, Joachim Bresseel, T. Heitzmann, M. Gottardo   +3 more
semanticscholar   +1 more source

High concentrations of fluorescent nanoprobes delayed Oryzias melastigma embryo hatching by modulating respiratory and metabolic pathways

VIEW, EarlyView.
We investigated the developmental toxicity of a new graphene‐based fluorescent nanoprobe for tumor cell nucleus (GTTNs) using Oryzias melastigma embryos. The results confirmed that GTTNs have excellent biocompatibility for biomedical applications. Only the highest dose delayed hatching time.
Tianle Tang, Jinyan Chen, Jun Zhang, Pengcheng Pan, Jiahui Jiang, Chenyu Hu, Yuan He, Chenchen Li, Junfeng Zhang, Yanli Wang   +9 more
wiley   +1 more source

Dietary adaptations along the northern limit of distribution: what does the smooth snake Coronella austriaca eat in Norway? Metabarcoding of stomach content and visual analysis of faeces

Wildlife Biology, EarlyView.
Understanding how species survive at their poleward limits of distribution is of interest in species conservation, particularly in light of global warming and predictions of shifting distributions of both predators and prey species. How species adapt to high latitudes and to future climate changes will be impacted both by direct interactions with the ...
Veronica Q. T. Phan, Marielle C. Samslått, Alison C. Cleary, Pål Sørensen, Audun Slettan, Beate S. Johansen   +5 more
wiley   +1 more source