Results 151 to 160 of about 57,892 (306)

Variation in parrot jaw musculature

open access: yesThe Anatomical Record, EarlyView.
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace   +3 more
wiley   +1 more source

Evolutionary conservation genetics of invasive and endemic parrots [PDF]

open access: yes, 2015
The world is now thought to have entered into a sixth mass extinction event, which unlike previous mass extinctions, is entirely driven by human impacts.
Jackson, Hazel Anne
core  

Niche position and niche breadth effects on population abundances: A case study of New World Warblers (Parulidae)

open access: yesEcology and Evolution
Species abundance patterns are influenced by a myriad of factors, including habitat availability and ecological niche characteristics. However, the evidence concerning the specific impact factors such as niche position and niche breadth on mean and ...
Sandra Castaño‐Quintero   +4 more
doaj   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

A Complete RM-ODP Case-study to Integrate Geospatial Services and Ecological Niche Modeling Systems

open access: yes, 2012
Conservation and sustainable use of natural resources are relevant research areas for many different purposes, including biodiversity maintenance, global warming studies and sustainable development.
Stange, Renata   +4 more
core   +1 more source

Estimating global geographical distribution and ecological niche dynamics of Ammannia coccinea under climate change based on Biomod2

open access: yesScientific Reports
Invasive alien plants pose a significant threat to biodiversity and the agricultural economy. The invasive weed (Ammannia coccinea) competes with rice in paddy fields, potentially threatening rice production.
YanJing Zhang   +6 more
doaj   +1 more source

An integrated assessment of niche partitioning reveals mechanisms of coexistence between mesocarnivores

open access: yesGlobal Ecology and Conservation
Species diversity depends on the capacity of species to coexist, and when these share similar ecological requirements some degree of partitioning of the ecological niche is expected.
Ana Luisa Barros   +7 more
doaj   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Expanding the modern synthesis II: Formal perspectives on the inherent role of niche construction in fitness

open access: yes, 2010
Expanding the modern synthesis requires elevating the role of interaction within and across various biological scales to the status of an evolutionary principle.
Rodrick Wallace
core  

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

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