Results 91 to 100 of about 277,393 (289)

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison   +9 more
wiley   +1 more source

Data from: Trophic niche overlap decreases in related mesocarnivore species

open access: yes
phylogenetic_dist: Contains the extrapolation of phylogenetic distances from cytochrome b data to mitochondrial distances in carnivores. Includes pairwise distance tables and Python scripts testing regression models and regression trees.pianka: Includes ...
Hernández-Hernández, Javier   +5 more
core   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

open access: yesThe Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Comparative histological, histochemical, and histometric evaluation of the esophagus in two avian species with different feeding habits (Ciconia ciconia and Buteo buteo)

open access: yesThe Anatomical Record, EarlyView.
Histological structure of esophagus. Abstract The aim of this study was to conduct a comparative evaluation of the histological and histochemical organization of the esophagus in two avian species with different feeding ecologies. A total of 6 individuals were used for this purpose (3 storks, 3 common buzzards).
Serap İlhan Aksu   +8 more
wiley   +1 more source

Same Diet, Different Strategies: Variability of Individual Feeding Habits across Three Populations of Ambrosi’s Cave Salamander (Hydromantes ambrosii)

open access: yesDiversity, 2020
European cave salamanders of the genus Hydromantes are a group of eight species endemic to Italy and south-eastern France. Knowledge on the trophic niche of European Hydromantes is poor, and the few available studies only partially investigate their ...
Enrico Lunghi   +7 more
doaj   +1 more source

Macrophytes shape trophic niche variation among generalist fishes

open access: yesPLOS ONE, 2017
Generalist species commonly have a fundamental role in ecosystems as they can integrate spatially distinct habitats and food-web compartments, as well as control the composition, abundance and behavior of organisms at different trophic levels. Generalist populations typically consist of specialized individuals, but the potential for and hence degree of
Vejříková, Ivana   +9 more
openaire   +7 more sources

How trophic interaction strength depends on traits: A conceptual framework for representing multidimensional trophic niche spaces [PDF]

open access: yes, 2010
A key problem in community ecology is to understand how individual-level traits give rise to population-level trophic interactions. Here, we propose a synthetic framework based on ecological considerations to address this question systematically.
Rossberg, A.G.   +2 more
core   +1 more source

Enhancing the Secretion Systems: Genetic Engineering of Super Bioagents for Effective Plant Disease Control

open access: yesBiotechnology and Bioengineering, EarlyView.
Genetic engineering (GE) overcomes BCA limits, enabling robust, scalable crop protection. “Super Bioagents” (SBs) use optimized SSs to enhance bioactive molecule delivery. Optimizing SSs enhance precise, sustainable effector deployment for stable disease suppression. SBs use microbiome‐informed design for scalable, next‐gen sustainable crop protection.
Michael Dare Asemoloye
wiley   +1 more source

Trophic plasticity and invasive success: dynamic feeding strategies of the signal crayfish in Croatian rivers

open access: yesJournal of Freshwater Ecology
The invasive signal crayfish (Pacifastacus leniusculus), a species of high concern in European freshwaters, represents a substantial threat to native crayfish species and freshwater ecosystems.
Milan Danilović   +3 more
doaj   +1 more source

Neurovascular coupling in bone regeneration: Mechanisms, advanced biomaterials and challenges

open access: yesBMEMat, EarlyView.
This figure illustrates various material strategies for neurovascularized bone regeneration, including electroactive scaffolds, ion‐loaded materials, drug delivery systems, surface modifications, cells/cell products, growth factors, and peptides. These approaches aim to synergistically promote the regeneration of neural, vascular, and bone tissues ...
Yixin Ma   +8 more
wiley   +1 more source

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