• Besides its role as a nutrient, N can act as an important environmental signal that triggers physiological responses and morphological changes by regulating gene expression. (frontiersin.org)
  • The other morphological or physiological adaptations were the result of successive selections to improve the new means of assimilation: colour and nectar to attract prey, production of digestive enzymes, etc. (espacepourlavie.ca)
  • Certainly, most morphological and physiological characters are well-adapted to the environment in which the organism lives, and there is no question about the importance of natural selection in the formation of intricate morphological characters. (blogspot.com)
  • However, are all individual differences in morphological and physiological characters adaptive as claimed by extreme neo-Darwinians? (blogspot.com)
  • More than 4 billion people live on this planet, and all of them except identical twins are different with respect to various morphological and physiological characters. (blogspot.com)
  • Is random genetic drift unimportant for generating morphological and physiological diversity among organisms? (blogspot.com)
  • Reactive oxygen species (ROS) are volatile and short-lived molecules playing important roles in several physiological functions, including immunity and physiological adaptation to unsuit- able environmental conditions. (unimore.it)
  • 2016, and others in the Recommended Readings listing) have documented changes in morphological and physiological traits in urban populations of many plant species. (thenatureofcities.com)
  • developmental and morphological innovations or phenotypic plasticity. (dfg.de)
  • Elucidating the genetic mechanisms behind phenotypic divergence that are driven by adaptation is a primary mission of modern evolutionary biology [ 5 ]. (biomedcentral.com)
  • In many species, the middle of the sporophyte (hypophysis/apophysis) may be highly inflated or flared in order to attract insects. (wikipedia.org)
  • These attract insects such as beetles that are then eaten by the owls. (mapoflife.org)
  • Other things that in recent years have attracted researchers to the Nordic herbarium are among other things the possibilities to obtain from the collections unique information about the phenology of species (like flowering time), chemical contents (like environmental toxins) and parasites (like micro-fungi and bile-forming insects), and how these have changed over time and space. (lu.se)
  • However, there are survival strategies that might not attract as much attention in media as bright warning colors and camouflage which render species virtually invisible, but are nonetheless sophisticated adaptations for surviving predators. (terrariedjur.se)
  • We showed experimentally that the absence of ants on flowers of most introduced and few native plants species was due to morphological barriers and/or repellent floral scents, examined in a mobile olfactometer. (uni-wuerzburg.de)
  • When facing natural selection, species may find that maintaining large morphological structures may not be the evolutionarily beneficial decision. (emory.edu)
  • The famed finches of the Galapagos, the honeycreepers and fruit flies of Hawaii, and the species-rich plant genera on many island sites will draw the curious biologist more than the pink sands, reggae music, and hula dancing that attract less scientific emotions. (thenatureofcities.com)
  • By merging often disparate biological fields, Snowbird offers biologists across disciplines an integrative framework for further research into adaptation, population divergence, and the formation of new species. (booksaboutbirds.co.uk)
  • A greater concentration of a compound present throughout the species allowed one morph to attract bee pollinators. (botany.one)
  • Guenons (tribe Cercopithecini) are a species-rich group of primates that have attracted considerable attention from both primatologists and evolutionary biologists. (biomedcentral.com)
  • Inducible defenses as a form of plasticity is found to be ubiquitous in anuran larvae, where morphological, behavioral, and life-history traits changes as a response to predators. (terrariedjur.se)
  • In nature, there are countless of strategies used by prey to evade predation, ranging from behavioral tactics as simple as hiding, to complex morphological strategies as elaborate camouflage, sharp spines or toxins. (terrariedjur.se)
  • Ectodus descampsii has many similarities, both morphological and behavioral, in common with a group of sand-dwelling cichlids consisting of Lestradea perspicax , L. stappersii , Cardiopharynx schoutedeni and of course the above mentioned undescribed Ectodus sp. (cichlidae.com)
  • The vast majority of complex structures seem to be adaptations of one sort of another. (blogspot.com)
  • 5. Or is it simply your contention that natural selection, while not playing an important role in the origin of complex structures and novel morphological features, exerts a refining and purifying effect subsequent to their appearance, weeding out non-viable life-forms? (blogspot.com)
  • No. I have always contended that natural selection plays an important role in the origin of most complex structures and novel adaptive morphological features. (blogspot.com)
  • This indicates that, in addition to morphological structures, the meaning and function of morphemes are also analogically influenced by adaptation to speech acts (utterances). (orientalstudies.ru)
  • Recent research has even shown that there are plants whose seeds are covered with a mucous layer able to attract, kill and digest tiny organisms like mosquito larvae, protozoa, etc. (espacepourlavie.ca)
  • We do not encourage projects focusing on single-genes and/or single-organisms, nor studies and approaches with a strong focus on ecological, taxonomic, comparative physiology, population genetics or short-term adaptation. (dfg.de)
  • The idea that natural selection produces perfect organisms with perfectly advantageous adaptations is just a tall tale. (emory.edu)
  • The reasons for animals having horns have to do with various environmental and evolutionary adaptations. (ericlowitt.com)
  • However, the adaptation to novel habitats with distinct conditions poses a risk of failure. (biomedcentral.com)
  • It seems to me that in some morphological characters a substantial part of genetic variation in nonadaptive. (blogspot.com)
  • The extensive collections are also an invaluable source for studies of morphological variation over time and space. (lu.se)
  • The curious habit of stabbing their partners with sharp calcareous (or chitinous) darts during courtship and prior to actual copulation has understandably attracted considerable attention. (mapoflife.org)
  • Mapping of morphological characters indicated some degree of convergence (e.g., fleshy petals, purplish display) but also considerable divergence in key characters that point to rather opposing pollination strategies and also different degrees of specialization in Acca versus Myrrhinium . (peerj.com)
  • Later research found other explanations such as sexual selection (male-male combat and attracting female giraffes), increased vigilance (able to see predators from further away), and thermoregulation (increased surface area allows for greater cooling ability). (emory.edu)
  • These flowers attract pollinators such as bees and butterflies. (bioenotes.com)
  • With coastal erosion hazards predicted to increase globally, data to inform decision making on erosion mitigation and adaptation strategies is becoming critical. (nature.com)
  • We developed 13 flower and inflorescence characters that comprehensively depict the macroscopic morphological components of this interaction. (peerj.com)
  • I apply several imaging techniques to provide unambiguous illustrations of diagnostic morphological characters with an emphasis in experimenting non-destructive imaging methods, especially the Micro CT scanning. (helsinki.fi)
  • Among the extant orchids, Apostasia shenzhenica is one of the most primitive, and its morphological characters are quite different from others, providing a good example to demonstrate the genetic mechanisms of the orchid's evolution. (ncku.edu.tw)
  • 2013 In the human body each of these local microenvironments represents a unique combination of physicochemical and biological factors (temperature water gases metabolites and ion concentrations) that can profoundly affect the growth and pathogenic potential of (Cottier and Muhlschlegel 2009 Of all the biological processes associated with pathogenicity morphological conversions - the ability to undergo reversible transitions between a variety of yeast and filamentous forms- have attracted the most attention. (researchassistantresume.com)
  • The role of N in various abiotic stress responses has attracted increasing attention. (frontiersin.org)
  • Since Darwin's stop at the Galapagos Islands of Ecuador, biologists keep turning towards islands for an understanding of biodiversity and the processes that drive adaptation. (thenatureofcities.com)
  • Therefore it is entirely possible that at least some of the adaptations that have advertised commensalism in a healthy sponsor during millions of years of co-evolution could have primed the fungus to acquire an ability to unleash its virulence potential and take full advantage of an immunocompromised host (Pierce et al. (researchassistantresume.com)
  • 1. Do you agree or disagree with the view expressed by Motoo Kimura that natural selection is necessary to explain evolution occurring at the morphological level? (blogspot.com)
  • Some evolution at the morphological level can be attributed to natural selection and some is due to random genetic drift. (blogspot.com)
  • natural selection and random genetic drift are both necessary to explain evolution at the morphological level. (blogspot.com)
  • They are not very good at explaining most adaptations but there's a lot more to evolution than adaptations. (blogspot.com)
  • Adaptation and evolution as seen in Darwin's voyage of discovery has now landed in our city centers where increasing number of restorationists hone their skills. (thenatureofcities.com)
  • The reader is introduced to key features of basal avians and the morphological transformations that have occurred in the evolution towards modern birds. (booksaboutbirds.co.uk)
  • Due to the phonetic interdependency or sandhi (the mutual influence of adjacent sounds in a word), phonemes that have lost the morphological function to distinguish meaning in the process of generating and recognizing speech tend to become weaken and elided. (orientalstudies.ru)
  • This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. (peerj.com)
  • The long necks of giraffes is just one of many examples in nature illustrating that there are costs and benefits to most adaptations. (emory.edu)
  • Whether big, long or twisted, these morphological wonders shed some fascinating light on animal behavior. (ericlowitt.com)
  • For this reason, the consonant -l- and the syllable -la / -le , which are elided as a result of haplology in speech, should be restored in the dictionary in accordance with the morphological structure. (orientalstudies.ru)
  • The plant's adaptation to harsh environmental conditions has contributed to its resilience and survival in these regions. (bioenotes.com)
  • Subsequently, in terms of the morphological surface structure, the suffix -ld- is added directly to the noun stem in colloquial speech and, similarly, such irregular formation of verbs is built into the general system of Mongolian word formation. (orientalstudies.ru)
  • Since the Mongolian language is agglutinative, the rules of word formation and morphological principles should be significantly emphasized in orthography. (orientalstudies.ru)
  • Furthermore, the morphological alterations of T. atroviride in response to plant host and fungal prey compounds suggest the presence of both positive and negative chemotropism. (frontiersin.org)
  • The morphological adaptation behaviour of the material emerges from the low-level interactions of a population of particles moving within a diffusive lattice. (arxiv.org)
  • but, since opposites usually attract, it is not rare to find them together. (positivehealth.com)
  • In addition, the work explores such aspects as swallowing mechanism in birds, the adaptations that have evolved for flight at extreme altitude and gas exchange in eggs. (booksaboutbirds.co.uk)
  • Mostly, they are used to interact with other animals, whether to attract a mate, fight for dominance or even to obtain food. (ericlowitt.com)