Relevant bibliographies by topics / Conservatisme de niche

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Conservatisme de niche'

Author: Grafiati
Published: 12 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "Conservatisme de niche"

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Cooper, Natalie, Rob P. Freckleton, and Walter Jetz. "Phylogenetic conservatism of environmental niches in mammals." Proceedings of the Royal Society B: Biological Sciences 278, no. 1716 (2011): 2384–91. http://dx.doi.org/10.1098/rspb.2010.2207.

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Phylogenetic niche conservatism is the pattern where close relatives occupy similar niches, whereas distant relatives are more dissimilar. We suggest that niche conservatism will vary across clades in relation to their characteristics. Specifically, we investigate how conservatism of environmental niches varies among mammals according to their latitude, range size, body size and specialization. We use the Brownian rate parameter, σ 2 , to measure the rate of evolution in key variables related to the ecological niche and define the more conserved group as the one with the slower rate of evoluti
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Liu, Chunlong, Christian Wolter, Weiwei Xian, and Jonathan M. Jeschke. "Most invasive species largely conserve their climatic niche." Proceedings of the National Academy of Sciences 117, no. 38 (2020): 23643–51. http://dx.doi.org/10.1073/pnas.2004289117.

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The ecological niche is a key concept for elucidating patterns of species distributions and developing strategies for conserving biodiversity. However, recent times are seeing a widespread debate whether species niches are conserved across space and time (niche conservatism hypothesis). Biological invasions represent a unique opportunity to test this hypothesis in a short time frame at the global scale. We synthesized empirical findings for 434 invasive species from 86 studies to assess whether invasive species conserve their climatic niche between native and introduced ranges. Although the ni
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Olonova, Marina V., Tatyana S. Vysokikh, and Roman S. Romanets. "Ecological and geographical studies of Poa versicolor (Poaceae) aggregate in Asian Russia and adjacent territories." Acta Biologica Sibirica 9 (December 13, 2023): 1141–66. https://doi.org/10.5281/zenodo.10360637.

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Aggregate<i> Pоа versicolor</i> (Poaceae) contains closely related xeromorphic species distributed mainly in temperate regions of Asia. The most common species are<i> P. transbaicalica, P. relaxa, P. ochotensis, P. botryoides</i> and<i> P. argunensis</i>. They play an important role in the structure of steppe communities, but this aggregate is known to be difficult for the systematics. The previous research of morphological diversity and distribution confirmed morphological and geographical diversification within the aggregate, however, their ecological-climatic niches were not studied. The go
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Stukenholtz, Erin E., and Richard D. Stevens. "The Relationship between Grinnellian and Eltonian Niche Characteristics and Passerine Distribution across a Latitudinal Gradient." Diversity 16, no. 6 (2024): 352. http://dx.doi.org/10.3390/d16060352.

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The degree to which Grinnellian and Eltonian niche characteristics influence species distribution may depend on latitude. Tropical regions are environmentally stable and resource-rich, whereas temperate regions are comparatively less environmentally stable (e.g., environmental filtering). Moreover, phylogenetic niche conservatism could influence distributions by inhibiting the ability for species to colonize environmentally different locations. Herein, we examine relationships between niche characteristics, passerine distributions, and phylogenetic niche conservatism across the latitudinal gra
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Suárez-Mota, Mario, José Villaseñor, and Lauro López-Mata. "Ecological niche similarity between congeneric Mexican plant species." Plant Ecology and Evolution 148, no. (3) (2015): 318–28. https://doi.org/10.5091/plecevo.2015.1147.

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<b>Background and aims</b> – Ecological niche conservatism describes the tendency of phylogenetically related species to maintain the characteristics of their ancestral fundamental niches. Our aim was to assess niche conservatism of species belonging to two plant genera of the Family Asteraceae endemic to Mexico: <i>Dyscritothamnus</i> includes two woody species restricted to the dry scrublands of central Mexico and <i>Loxothysanus</i> includes two herbaceous species distributed mostly in temperate environments from central Mexico southward. <b>Methods</b> – Using geographical distribution dat
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Song, Xing-Jiang, Gang Liu, Zeng-Qiang Qian, and Zhi-Hong Zhu. "Niche Filling Dynamics of Ragweed (Ambrosia artemisiifolia L.) during Global Invasion." Plants 12, no. 6 (2023): 1313. http://dx.doi.org/10.3390/plants12061313.

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Determining whether the climatic ecological niche of an invasive alien plant is similar to that of the niche occupied by its native population (ecological niche conservatism) is essential for predicting the plant invasion process. Ragweed (Ambrosia artemisiifolia L.) usually poses serious threats to human health, agriculture, and ecosystems within its newly occupied range. We calculated the overlap, stability, unfilling, and expansion of ragweed’s climatic ecological niche using principal component analysis and performed ecological niche hypothesis testing. The current and potential distributi
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Dorey, James B., Scott V. C. Groom, Elisha H. Freedman, et al. "Radiation of tropical island bees and the role of phylogenetic niche conservatism as an important driver of biodiversity." Proceedings of the Royal Society B: Biological Sciences 287, no. 1925 (2020): 20200045. http://dx.doi.org/10.1098/rspb.2020.0045.

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Island biogeography explores how biodiversity in island ecosystems arises and is maintained. The topographical complexity of islands can drive speciation by providing a diversity of niches that promote adaptive radiation and speciation. However, recent studies have argued that phylogenetic niche conservatism, combined with topographical complexity and climate change, could also promote speciation if populations are episodically fragmented into climate refugia that enable allopatric speciation. Adaptive radiation and phylogenetic niche conservatism therefore both predict that topographical comp
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Medina, Anderson Matos, and Mário Almeida-Neto. "Grinnelian and Eltonian niche conservatism of the European honeybee (Apis mellifera) in its exotic distribution." Sociobiology 67, no. 2 (2020): 239. http://dx.doi.org/10.13102/sociobiology.v67i2.4901.

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The understanding of how niche-related traits change during species invasion have prompted what is now known as the niche conservatism principle. Most studies that have tested the niche conservatism principle have focused on the extent to which the species’ climatic niches remain stable in their exotic distribution. However, it is equality important to address how biotic specialization, i.e. resource use, changes during exotic species invasions. Here, we use the widespread European honeybee (Apis mellifera) to understand whether its Grinnelian and Eltonian niches changed in its exotic distribu
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Srivastava, Vivek, Wanwan Liang, Melody A. Keena, Amanda D. Roe, Richard C. Hamelin, and Verena C. Griess. "Assessing Niche Shifts and Conservatism by Comparing the Native and Post-Invasion Niches of Major Forest Invasive Species." Insects 11, no. 8 (2020): 479. http://dx.doi.org/10.3390/insects11080479.

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Invasive species experience biotic and abiotic conditions that may (or may not) resemble their native environment. We explored the methodology of determining climatic niches and compared the native and post-invasion niches of four invasive forest pests to determine if these species experienced shifts or changes in their new climatic niches. We used environmental principle components analysis (PCA-env) method to quantify climatic niche shifts, expansions, and temporal changes. Furthermore, we assessed the effect of variable selection in the delineation and comparison of niche space. We found th
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Lizardo, Viridiana, Erick Alejandro García Trejo, and Juan J. Morrone. "Niche conservatism and convergence in birds of three cenocrons in the Mexican Transition Zone." PeerJ 12 (January 2, 2024): e16664. http://dx.doi.org/10.7717/peerj.16664.

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Background The niche conservatism hypothesis postulates that physiological and phylogenetic factors constrain species distributions, creating richness hotspots with older lineages in ancestral climatic conditions. Conversely, niche convergence occurs when species successfully disperse to novel environments, diversifying and resulting in areas with high phylogenetic clustering and endemism, low diversity, and lower clade age. The Mexican Transition Zone exhibits both patterns as its biotic assembly resulted from successive dispersal events of different biotic elements called cenocrons. We test
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Dissertations / Theses on the topic "Conservatisme de niche"

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Rejaud, Alexandre. "Origine et diversité des Amphibiens d'Amazonie." Thesis, Toulouse 3, 2021. http://www.theses.fr/2021TOU30161.

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Avec une surface de plus de six millions de kilomètres carrés, l'Amazonie abrite la plus grande forêt tropicale humide au monde, ainsi qu'une grande partie de la diversité terrestre. Cependant, les origines spatiales et temporelles de cette diversité demeurent mal comprises et nécessitent d'être plus étudiées pour identifier les causes de cette impressionnante diversification. Les amphibiens sont un groupe taxonomique particulièrement adapté à l'étude de la biogéographie historique en Amazonie car ils ont diversifié de manière importante dans la région et présentent d'importante variations d'u
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Silva, Helen Rosa da. "Padrões espaciais e temporais na amplitude de nicho climático de vertebrados terrestres." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5527.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2016-05-04T19:47:04Z No. of bitstreams: 2 Dissertação - Helen Rosa da Silva - 2015.pdf: 1580503 bytes, checksum: b52d04d79b983417cb07f98a43ae918d (MD5) license_rdf: 19874 bytes, checksum: 38cb62ef53e6f513db2fb7e337df6485 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-05-05T13:09:29Z (GMT) No. of bitstreams: 2 Dissertação - Helen Rosa da Silva - 2015.pdf: 1580503 bytes, checksum: b52d04d79b983417cb07f98a43ae918d (MD5) license_rdf: 19874 bytes, checksum: 38cb62ef53e6f513db2fb7e337df6485 (MD5)<br>
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Gurgel, Priscila Cabral Silveira. "Reproductive modes are associated to climatic niche evolution in treefrogs (anura: hylidae)." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6263.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2016-09-23T18:57:40Z No. of bitstreams: 2 Dissertacao - Priscila Cabral Silveira Gurgel - 2016.pdf: 2031167 bytes, checksum: 22df3ff29210a62b369501594be33bb5 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-09-26T11:43:47Z (GMT) No. of bitstreams: 2 Dissertacao - Priscila Cabral Silveira Gurgel - 2016.pdf: 2031167 bytes, checksum: 22df3ff29210a62b369501594be33bb5 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ec
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Fran?a, Karol Lyncoln B. de O. de. "Padr?es de coexist?ncia e utiliza??o do h?bitat por duas esp?cies de Herpsilochmus (Aves: Thamnophilidae)." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14041.

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Made available in DSpace on 2014-12-17T14:33:09Z (GMT). No. of bitstreams: 1 KarolLBOF_DISSERT_PARCIAL.pdf: 340660 bytes, checksum: f2a188d52831a6a40d06910a31049e94 (MD5) Previous issue date: 2012-07-05<br>How ecologically similar species are able to coexist has always generated great interest in the scientific community. Classical niche theory predicts that species coexistence is only possible when they segregate in at least one dimension of the ecological niche, thus leading to ecological differentiation among species. However, recent work has shown that species that are more similar
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Russell, Vanessa. "Identifying Environmental Factors Driving Differences in Climatic Niche Overlap in Peromyscus Mice." Miami University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1565722438217428.

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Bolte, Constance E. "NICHE CONSERVATISM OR DIVERGENCE: INSIGHTS INTO THE EVOLUTIONARY HISTORIES OF Pinus taeda, Pinus rigida, AND Pinus pungens." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4842.

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Environmentally related selective pressures and community interactions are well-documented drivers for niche differentiation, as natural selection acts on adaptive traits best fit for survival. Here, we investigated niche evolution between and within Pinus taeda, Pinus rigida, and Pinus pungens and sought to identify which climate variables contributed to species divergence. We also sought to describe niche differentiation across genetic groupings previously identified for P. taeda and P. rigida. Ecological niche models were produced using Maximum Entropy followed by statistical testing based
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Silva, Marcelo da. "Taxonomia e biogeografia da esp?cie polit?pica Herpsilochmus rufimarginatus (TEMMINCK, 1822) (Aves: THAMNOPHILIDAE)." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18132.

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Made available in DSpace on 2014-12-17T15:49:14Z (GMT). No. of bitstreams: 1 MarceloS_DISSERT.pdf: 3344512 bytes, checksum: a6ed717c2f82cdbe0c9dda1fc27ed564 (MD5) Previous issue date: 2013-06-28<br>Universidade Federal do Rio Grande do Norte<br>The genus Herpsilochmus is composed mainly of cryptic species, among them is Herpsilochmus rufimarginatus, which is currently represented by four subspecies: H. r. rufimarginatus, H. r. frater, H. r. scapularis and H. r. exiguus. Differences in plumage and vocalization suggest that there are more than one species involved in this complex. Thus th
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LIMA, JUNIOR Dilermando Pereira. "Transformando tropeços em passos de dança: o uso de espécies exóticas para estudos biogeográficos." Universidade Federal de Goiás, 2008. http://repositorio.bc.ufg.br/tede/handle/tde/2548.

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Made available in DSpace on 2014-07-29T16:21:15Z (GMT). No. of bitstreams: 1 Dissertacao Dilermando P L Jr.pdf: 360879 bytes, checksum: 1c2f22ea2b7828ee7c6779ffd933fed4 (MD5) Previous issue date: 2008-02-27<br>The establishment of exotic species is known for the negative impacts it causes. However, it can be used as models to study the ecological and evolutionary causes of biogeography patterns and access whether the niche conservatism is the determinant of the species limits distribution. The main purpose of this study is to evaluate the difference between pools of exotic fish species in bi
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Viljoen, Jan-Adriaan. "Biogeography of Isolepis subgenus Fluitantes (C.B. Clarke), Muasya (Cyperaceae): niche conservatism, long distance dispersal and hybridization." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/25958.

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Numerous lineages of the Western Cape of South Africa show affinities with the flora of tropical Africa and with Australasia. Recent work suggests that most migrations between the Western Cape and tropical Africa occur in a northward direction, and that connections between the flora of regions in the Southern Hemisphere are maintained by wind-assisted long-distance dispersal. The Fluitantes clade of lsolepis (Cyperaceae: Cypereae) is distributed throughout these areas and provides a useful study group to assess the general validity of published biogeographical trends. Furthermore, the cooccurr
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Protázio, Arielson dos Santos. "Ecologia de taxocenose de anfíbios anuros em poças temporárias na caatinga." Universidade Federal da Paraí­ba, 2012. http://tede.biblioteca.ufpb.br:8080/handle/tede/4105.

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Made available in DSpace on 2015-04-17T14:55:19Z (GMT). No. of bitstreams: 1 arquivototal.PDF: 1079008 bytes, checksum: 6627885b56d1a7d7174f7cbfaceacfb7 (MD5) Previous issue date: 2012-02-13<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>In theroy, the influence of phylogeny in community structure implies that phylogenetically close species may show similar characteristics determined by their evolutionary history. In a fine scale, this is useful to identify processes of microevolution. We used phylogenetic and ecological data to investigate the determinant fact
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Books on the topic "Conservatisme de niche"

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Siegfried, Jäger, ed. Der Spuk ist nicht vorbei: Völkisch-nationalistische Ideologeme im öffentlichen Diskurs der Gegenwart. DISS, 1998.

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Walker, Jennifer. Sacred Sounds, Secular Spaces. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197578056.001.0001.

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This book is the first comprehensive study that reevaluates music’s role in the relationship between the French state and the Catholic Church at the end of the nineteenth century. As the divide between Church and State widened on the political stage, more and more composers began writing religious—even liturgical—music for performance in decidedly secular venues, including popular cabaret theaters, prestigious opera houses, and international exhibitions: a trend that coincided with Pope Leo XIII’s Ralliement politics that encouraged conservative Catholics to “rally” with the Republican governm
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McIvor, Méadhbh. Representing God. Princeton University Press, 2020. http://dx.doi.org/10.23943/princeton/9780691193632.001.0001.

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Over the past two decades, a growing number of Christians in England have gone to court to enforce their right to religious liberty. Funded by conservative lobby groups and influenced by the legal strategies of their American peers, these claimants — registrars who conscientiously object to performing the marriages of same-sex couples, say, or employees asking for exceptions to uniform policies that forbid visible crucifixes — highlight the uneasy truce between law and religion in a country that maintains an established Church but is wary of public displays of religious conviction. This book c
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Book chapters on the topic "Conservatisme de niche"

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Kelsch, Jakob. "Verortung der Analyse in der Serienhistorie: Binging Conservatism." In Binging Family. Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-34766-6_4.

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ZusammenfassungIn Kapitel 10.1007/978-3-658-34766-6_4. werden die Ergebnisse in den historischen Darstellungsverlauf der Familie (vgl. Kapitel 10.1007/978-3-658-34766-6_2) eingeordnet: Allgemein treibt die Video-on-Demand-Serie bestimmte Entwicklungen voran, insbesondere auf der Ebene der Strukturierung der Handlung und der Diversifizierung des Angebots. Diese Entwicklungen haben dabei ihren Ursprung bereits vor der Zeit der Streaming-Anbieter und werden von diesen fortgeführt und verstärkt. Inhaltlich, in Bezug auf die Familiendarstellung der analysierten Serien, handelt es sich aber um weitg
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Hochkirch, Axel. "Niche Conservatism among Allopatric Species of the Grasshopper Genus Afrophlaeoba Jago, 1983 in the Eastern Arc Mountains (Tanzania)." In Relict Species. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-92160-8_7.

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Sirakov, Alexander, Marta Aguilar Pérez, Muhammad AlMatter, and Hans Henkes. "Paraophthalmic Internal Carotid Artery Aneurysm: Non-ischemic Cerebral Enhancing (NICE) Lesions After the Endovascular Treatment of an Incidental Paraophthalmic Aneurysm with Flow Diverters and Coils; Conservative Management, with Resolution of the Pathological Cerebral Findings and Clinical Recovery During Mid-Term Follow-Up." In The Aneurysm Casebook. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-77827-3_142.

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Sirakov, Alex, Marta Aguilar Pérez, Muhammad AlMatter, and Hans Henkes. "Paraophthalmic Internal Carotid Artery Aneurysm: Non-Ischemic Cerebral Enhancing (NICE) Lesions After the Endovascular Treatment of an Incidental Paraophthalmic Aneurysm with Flow Diverters and Coils; Conservative Management, with Resolution of the Pathological Cerebral Findings and Clinical Recovery During Mid-Term Follow-Up." In The Aneurysm Casebook. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-70267-4_142-1.

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Peterson, A. Townsend, Jorge Soberón, Richard G. Pearson, et al. "Linking Niches with Evolutionary Processes." In Ecological Niches and Geographic Distributions (MPB-49). Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691136868.003.0015.

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This chapter examines how the process of ecological niche evolution and diversification helps us better understand ecology, biogeography, and biodiversity. It first considers how species respond to changes in the environmental substrate on which the niches are manifested before discussing the concept of niche conservatism as well as tests of conservatism in areas such as species invasions and comparison of the ecological niche requirements of sister–species pairs. It then explores how temporal change in niche dimensions occurs, how it can be studied, and what can be learned. It also describes
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Peterson, A. Townsend, Jorge Soberón, Richard G. Pearson, et al. "Conclusions." In Ecological Niches and Geographic Distributions (MPB-49). Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691136868.003.0016.

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This book has described a comprehensive framework for thinking about the geography and ecology of species distributions, arguing that such a framework is critical to further progress in the field of ecological niches and distributions. To develop this framework, traditional concepts in ecology have been radically reworked. In this conclusion, some of the challenges for future work regarding ecological niche modeling are discussed, such as fully integrating the BAM diagram with central concepts of population biology and statistical theory; clarifying the notion of niche conservatism versus nich
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Peterson, A. Townsend, Jorge Soberón, Richard G. Pearson, et al. "Discovering Biodiversity." In Ecological Niches and Geographic Distributions (MPB-49). Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691136868.003.0011.

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This chapter discusses the conceptual basis of using ecological niche modeling for discovering new elements of biodiversity. More specifically, it examines the use of ecological niche models to guide searches for and discovery of unknown populations of species as well as species limits. It also explains how niche conservatism provides some degree of predictability across related taxa and makes the use of niche models for discovering biodiversity possible. For applications focused on discovery of unknown species, the chapter shows that niche conservatism is necessary if predictions of likely di
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Peterson, A. Townsend, Jorge Soberón, Richard G. Pearson, et al. "Species’ Invasions." In Ecological Niches and Geographic Distributions (MPB-49). Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691136868.003.0013.

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This chapter discusses the use of ecological niche modeling to study species invasions, and more specifically to identify and understand genuine exceptions to ecological niche equivalency between native and introduced ranges of species. In addition, it examines the degree to which the geographic course of species’ invasions can be anticipated based on scenopoetic variables and biotic interactions. The chapter also reviews practical considerations that must be taken into account when exploring the utility of ecological niche models in understanding species’ invasions, such as using niche conser
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"Chapter 12: Niche Conservatism, Tracking, and Ecological Stasis." In Evolutionary Theory. University of Chicago Press, 2016. http://dx.doi.org/10.7208/chicago/9780226426198.003.0016.

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Holt, Robert D., and Richard Gomulkiewicz. "Conservation Implications of Niche Conservatism and Evolution in Heterogeneous Environments." In Evolutionary Conservation Biology. Cambridge University Press, 2004. http://dx.doi.org/10.1017/cbo9780511542022.018.

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Conference papers on the topic "Conservatisme de niche"

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Machado-Stredel, Fernando, Jone Naujokaityte, Jenna M. McCullough, et al. "AN APPROACH TO QUANTIFY PHYLOGENETIC NICHE CONSERVATISM IN RADIATIONS OF EXTINCT AND EXTANT TAXA." In GSA Connects 2024 Meeting in Anaheim, California. Geological Society of America, 2024. http://dx.doi.org/10.1130/abs/2024am-403192.

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Bunsell, Anthony R., Franc¸oise Barbier, Alain Thionnet, Hasnae Zejli, and Brian Besanc¸on. "Damage Accumulation and Lifetime Prediction of Carbon Fiber Composite Pressure Vessels." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25978.

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Efficient storage of hydrogen is critical to the success of transition markets for hydrogen energy. For these near-term niche markets, high pressure compressed gas storage in carbon fiber composite pressure vessels is currently the most advanced and promising technology. However, challenges remain to improve performance and reliability while still insuring the safety of these pressure vessels in service over periods of 15 to 20 years. In order to avoid overdesign and conservative use, a fundamental understanding of damage mechanisms and degradation of these materials is required to fully explo
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Rodgers, Colin, and Colin F. McDonald. "Small Recuperated Gas Turbine APU Concept to Abate Concern About Emissions, High Fuel Cost, and Noise." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27913.

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During the last decade microturbines in the 30 to 250 kW power range have been in service, but they have not been produced in significant enough quantities to impact the DG market due to a combination of factors including their high cost, modest efficiency, utility institutional concerns, and low interest in CHP use in the USA, although the latter could change as a result of fuel cost escalation. Very small gas turbines (ie. less than 10 kW) have been investigated periodically over the years, mainly for potential military use, but to date have not found a niche. This could well change with ove
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Chen, YangQuan, Blas M. Vinagre, and Igor Podlubny. "On Fractional Order Disturbance Observer." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48371.

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In this paper, for the first time, the fractional order disturbance observer (FO-DOB) is proposed for vibration suppression applications such as hard disk drive servo control. It has been discovered in a recently published US patent application (US20010036026) (Chen et al., 2001) that there is a tradeoff between the the phase margin loss and the strength of the low frequency vibration suppression. Given the required cutoff frequency of the low pass filter, also known as the Q-filter, it turns out that the relative degree of the Q-filter is the major tuning knob for this tradeoff. As a motivati
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Rose, M. F., and D. Joyce. "Defence Youth STEM Outreach – Inspiring the Next Generation." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.003.

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This paper focuses on the need to build a solid foundation of skills which the future maritime workforce can build on to provide the innovation and exploitation of new technologies that the Royal Navy requires. This need sits within the wider strategic context of the national engineering skills shortage, reflected recently in the EngineeringUK report: ‘The State of Engineering 2018.’ The report forecasts as a conservative estimate an average shortfall in engineering graduates (level 4+) of 22,000, with the impact of Brexit upon these figures yet to be determined (the UK relies on attracting ta
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Paula, Maria Luiza Bessa de, Luiz de Paula Silveira Júnior, Luiz de Paula Silveira Neto, and Sebastião Alves Pinto. "Radio-induced breast angiosarcoma: case report." In Brazilian Breast Cancer Symposium 2024. Mastology, 2024. http://dx.doi.org/10.29289/259453942024v34s1102.

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Objective: This study aimed to describe a case of radio-induced angiosarcoma after conservative surgery of the right breast, as, due to the low incidence of this neoplasm, experience in the different services is limited. Therefore, the authors call for strict follow-up, especially due to the appearance of skin changes after radiotherapy, with the aim of making an early diagnosis of the disease. Methodology: To write the following case report, the authors carried out a literature review in the following databases: PubMed, LILACS, VHL, NICE, Cochrane Library, and Scielo. Results: The authors des
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Silveira Júnior, Luiz de Paula, Maria Luiza Bessa de Paula, Luiz de Paula Silveira Neto, and Sebastião Alves Pinto. "Radioinduced breast angiosarcoma: a case report." In XXVI Brazilian Mastology Congress. Mastology, 2024. https://doi.org/10.29289/259453942024v34s2038.

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Introduction: Angiosarcomas are malignant tumors composed of neoplastic endothelial cells of blood or lymphatic vessels. They can develop in the skin, lungs, liver, or spleen, but 8% of these tumors occur in the breasts. They are classified into primary and secondary types. Primary angiosarcomas are rare tumors, with an incidence ranging from 0.04% to 0.05% of malignant breast tumors. Secondary angiosarcomas are associated with post-mastectomy lymphedema (Stewart-Treves syndrome) and those linked to post-surgical radiotherapy, whether after radical or conservative breast surgery, with an incid
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