Relevant bibliographies by topics / Intra-species conservation

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Academic literature on the topic 'Intra-species conservation'

Author: Grafiati
Published: 13 April 2024

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Journal articles on the topic "Intra-species conservation"

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Clarke, Declan, Anurag Sethi, Shantao Li, Sushant Kumar, Richard W. F. Chang, Jieming Chen, and Mark Gerstein. "Identifying Allosteric Hotspots with Dynamics: Application to Inter- and Intra-species Conservation." Structure 24, no. 5 (May 2016): 826–37. http://dx.doi.org/10.1016/j.str.2016.03.008.

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CRONIN, MATTHEW A. "A Proposal to Eliminate Redundant Terminology for Intra-Species Groups." Wildlife Society Bulletin 34, no. 1 (March 2006): 237–41. http://dx.doi.org/10.2193/0091-7648(2006)34[237:aptert]2.0.co;2.

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Huang, Hongwen. "671 Genetic Diversity in Actinidia and Conservation Strategy." HortScience 35, no. 3 (June 2000): 514C—514. http://dx.doi.org/10.21273/hortsci.35.3.514c.

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The genus Actinidia contains more than 66 species and 118 taxa. The best-known species is A. deliciosa C.F. Liang et A.R. Ferguson, the commercially developed kiwifruit. The natural range of Actinidia is remarkably wide, extending from the tropics (latitude 0°0′) to cold temperate regions (500°N). However, the original distribution of most taxa of Actinidia is centered around the mountains and hills of south-central and southeast China, with the QinLing mountain as its northern boundary and the HengDuan mountain as its western boundary. Sixty-two species, 114 taxa have been found in China. Genetic variation ranging from morphological traits to DNA is discussed in here. 1) Morphological variation (mainly horticulturally important traits): fruit size varies from 2 to 100 g, fruit skin color ranges from brown to green to white to purple, fruit surface from setose to villose, and flesh color from green to purple. 2) Nutritional value and flavor: vitamin C content varies from 10 mg/100 g to 1000 mg/100 g fresh fruit, soluble solids ranges from 2% to 22%, and flavor includes variation form bitter and astringent to desirable sour-sweet. 3) Gender variation includes six phenotype/genotypes of female, inconstant female, male, fruiting male, neuter and hermaphrodite. 4) Ploidy variation is consist of 2x, 4x, 6x, 8x in both intra- and inter-taxa variation. 5) Isozyme genetic variation: high polymorphisms were detected in commercial cultivated species and 28 wild species. 6) Genetic diversity was evaluated by RAPD, SSR, PCR-RFLP of mtDNA and cpDNA, a high level of genetic diversity was found in both inter-taxa and intra-taxa. Conservation strategy for diverse genetic resources of Actinidia in China is also discussed.
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Heneidy, Selim Z., Marwa W. A. Halmy, Soliman M. Toto, Sania K. Hamouda, Amal M. Fakhry, Laila M. Bidak, Ebrahem M. Eid, and Yassin M. Al-Sodany. "Pattern of Urban Flora in Intra-City Railway Habitats (Alexandria, Egypt): A Conservation Perspective." Biology 10, no. 8 (July 22, 2021): 698. http://dx.doi.org/10.3390/biology10080698.

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Intra-city railway areas are deemed large greenspaces and are believed to be key in enhancing the diversity and dynamics of urban flora. In the current study, the floristic composition and diversity along intra-city railway and tram tracks in Alexandria were surveyed. The floristic composition of the plant communities in relation to environmental factors, ecological indicators, and level of human impact was analyzed using multivariate analysis (two-way indicator species analysis (TWINSPAN) for classification and detrended correspondence analysis (DECORANA) for ordination. The multivariate ordination techniques (CCA) revealed differences in the environmental factors and climatic factors influencing the floristic composition of the railway and tram track habitats. Tram tracks suffered higher human impact while maintaining higher vitality and cover compared to train tracks. Species recorded were mainly therophytes, followed by phanerophytes and hemicryptophytes dominated by native species; however, invasive species’ contribution was higher compared to surrounding regions. The number of invasive species was greater in railway areas compared to tram track areas (19 and 15, respectively). The occurrence of two endemic species (Sinapis allionii and Sonchus macrocarpus) with limited national distribution highlights the importance of these habitats as valuable refuge areas for rare and endangered species worthy of conservation action.
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Larson, Eric R., Magalie Castelin, Bronwyn W. Williams, Julian D. Olden, and Cathryn L. Abbott. "Phylogenetic species delimitation for crayfishes of the genusPacifastacus." PeerJ 4 (April 18, 2016): e1915. http://dx.doi.org/10.7717/peerj.1915.

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Molecular genetic approaches are playing an increasing role in conservation science by identifying biodiversity that may not be evident by morphology-based taxonomy and systematics. So-called cryptic species are particularly prevalent in freshwater environments, where isolation of dispersal-limited species, such as crayfishes, within dendritic river networks often gives rise to high intra- and inter-specific genetic divergence. We apply here a multi-gene molecular approach to investigate relationships among extant species of the crayfish genusPacifastacus, representing the first comprehensive phylogenetic study of this taxonomic group. Importantly,Pacifastacusincludes both the widely invasive signal crayfishPacifastacus leniusculus,as well as several species of conservation concern like the Shasta crayfishPacifastacus fortis. Our analysis used 83 individuals sampled across the four extantPacifastacusspecies (omitting the extinctPacifastacus nigrescens), representing the known taxonomic diversity and geographic distributions within this genus as comprehensively as possible. We reconstructed phylogenetic trees from mitochondrial (16S, COI) and nuclear genes (GAPDH), both separately and using a combined or concatenated dataset, and performed several species delimitation analyses (PTP, ABGD, GMYC) on the COI phylogeny to propose Primary Species Hypotheses (PSHs) within the genus. All phylogenies recovered the genusPacifastacusas monophyletic, within which we identified a range of six to 21 PSHs; more abundant PSHs delimitations from GMYC and ABGD were always nested within PSHs delimited by the more conservative PTP method.Pacifastacus leniusculusincluded the majority of PSHs and was not monophyletic relative to the otherPacifastacusspecies considered. Several of these highly distinctP. leniusculusPSHs likely require urgent conservation attention. Our results identify research needs and conservation priorities forPacifastacuscrayfishes in western North America, and may inform better understanding and management ofP. leniusculusin regions where it is invasive, such as Europe and Japan.
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Smith, Zoë F., Elizabeth A. James, and Cassandra B. McLean. "In situ morphometric study of the Diuris punctata species complex (Orchidaceae), with implications for conservation." Australian Systematic Botany 21, no. 4 (2008): 289. http://dx.doi.org/10.1071/sb08014.

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Taxa within the Diuris punctata species complex exhibit high levels of variation at both species and population level. Morphometric data collected in situ were used to investigate species boundaries of four Victorian Diuris species within the Diuris punctata species complex. Morphological characters and taxonomic groups identified in the present study were compared to those described under the current taxonomic treatment. Sixty-five multistate and continuous characters, including seven vegetative and 58 floral characters, were measured in situ across the range of each species within Victoria. The importance of flower colour in distinguishing taxa was highlighted but characters used were generally indiscrete. Certain characters used in current taxonomic descriptions, e.g. floral fragrance, were found to be uninformative. D. fragrantissima was confirmed as a separate taxon within the D. punctata group, justifying its recognition as a unique entity for conservation. Clustering of D. daltonii within D. punctata suggests that the recent elevation of the D. punctata var. daltonii to species level is not justified. The in situ measurement of morphological characters made it possible to incorporate sufficient sampling to encompass intra-specific and intra-population variation and is a feasible method to overcome sampling limitations encountered when herbarium specimens and limited destructive sampling are used.
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Moore, Abigail Mary, Samliok Ndobe, and Inayah Yasir. "Importance of monitoring an endangered endemic species - intra-species biodiversity perspectives on the Banggai cardinalfish conservation and trade." IOP Conference Series: Earth and Environmental Science 681, no. 1 (March 1, 2021): 012120. http://dx.doi.org/10.1088/1755-1315/681/1/012120.

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Isajev, Vasilije, Vladan Ivetic, Aleksandar Lucic, and Ljubinko Rakonjac. "Gene pool conservation and tree improvement in Serbia." Genetika 41, no. 3 (2009): 309–27. http://dx.doi.org/10.2298/gensr0903309i.

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This paper presents the concepts applied in the gene pool conservation and tree improvement in Serbia. Gene pool conservation of tree species in Serbia includes a series of activities aiming at the sustainability and protection of genetic and species variability. This implies the investigation of genetic resources and their identification through the research of the genetic structure and the breeding system of individual species. Paper also includes the study of intra- and inter-population variability in experiments - provenance tests, progeny tests, half- and full-sib lines, etc. The increased use of the genetic potential in tree improvement in Serbia should be intensified by the following activities: improvement of production of normal forest seed, application of the concept of new selections directed primarily to the improvement of only one character, because in that case the result would be certain, establishment and management of seed orchards as specialized plantations for long-term production of genetically good-quality forest seeds, and the shortening of the improvement process by introducing new techniques and methods (molecular markers, somaclonal variation, genetic engineering, protoplast fusion, micropropagation, etc.).
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Youk, Seungyeon, Mingue Kang, Byeongyong Ahn, Yangmo Koo, and Chankyu Park. "Genetic Diversity and Sequence Conservation of Peptide-Binding Regions of MHC Class I Genes in Pig, Cattle, Chimpanzee, and Human." Genes 15, no. 1 (December 20, 2023): 7. http://dx.doi.org/10.3390/genes15010007.

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Comparative analyses of MHC gene diversity and evolution across different species could offer valuable insights into the evolution of MHC genes. Intra- and inter-species sequence diversity and conservation of 12 classical major histocompatibility complex (MHC) class I genes from cattle, chimpanzees, pigs, and humans was analyzed using 20 representative allelic groups for each gene. The combined analysis of paralogous loci for each species revealed that intra-locus amino-acid sequence variations in the peptide-binding region (PBR) of MHC I genes did not differ significantly between species, ranging from 8.44% for SLA to 10.75% for BoLA class I genes. In contrast, intraspecies differences in the non-PBRs of these paralogous genes were more pronounced, varying from 4.59% for SLA to 16.89% for HLA. Interestingly, the Shannon diversity index and rate of nonsynonymous substitutions for PBR were significantly higher in SLA and BoLA than those in Patr and HLA. Analysis of peptide-binding pockets across all analyzed MHC class I genes of the four species indicated that pockets A and E showed the lowest and highest diversity, respectively. The estimated divergence times suggest that primate and artiodactyl MHC class I genes diverged 60.41 Mya, and BoLA and SLA genes diverged 35.34 Mya. These results offer new insights into the conservation and diversity of MHC class I genes in various mammalian species.
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Malekian, Mansoureh. "Morphological assessment raises the possibility of cryptic species within the Luristan newt, Neurergus kaiseri (Amphibia: Salamandridae)." Herpetological Journal, Volume 29, Number 4 (October 1, 2019): 237–44. http://dx.doi.org/10.33256/29.4.237244.

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One of the main challenges in the conservation of biodiversity is to overcome inadequate knowledge about species and their intra-specific diversity. In the present study, we attempted to assess morphological distinction of the two previously identified genetic clades within the Luristan newt (Neurergus kaiseri, Schmidt 1952) endemic to Iran, which is essential for its conservation planning. Signals of the morphological variation in N. kaiseri were evaluated using landmark-based geometric morphometrics of body shape and characters of osteological structures. Morphological approaches revealed consistent groupings within the species, confirming the presence of two distinct lineages (previously named as the northern and southern clades). The morphological and genetic data provide evidence for the possible co-existence of two species in N. kaiseri and we recommend assigning the newly recognised forms to the species level.
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Dissertations / Theses on the topic "Intra-species conservation"

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Homberg, Nicolas. "New models and algorithms for the identification of sncRNA-(snc)RNA interactions intra and across-species/kingdom." Electronic Thesis or Diss., Lyon 1, 2023. http://www.theses.fr/2023LYO10090.

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Les microARNs (miARNs) sont de petit ARNs non codant présents dans tous les eucaryotes qui régulent, positivement ou négativement, l'expression des ARN messagers (ARNms). Les miARNs ont un potentiel important pour de futurs traitements du cancer et d'autres maladies. Les interactions miARN-ARNm dépendent d'une variété de mécanismes complexes, tels que la complémentarité des séquences, l'accessibilité et la conservation. Cette thèse se concentre sur deux de ces mécanismes, à savoir l'accessibilité et la conservation intra-espèce du site d'interaction, en utilisant des données expérimentales de Cross-linking, Ligation And Sequencing of Hybrids (CLASH). Bien que l'accessibilité des sites d'interaction sur les ARNms soit généralement observée, cela n'est pas le cas pour toutes les interactions. La conservation intra-espèce est un mécanisme peu considéré que nous avons étudiée au travers la recherche de motifs conservés dans les ARNms. Bien que les résultats obtenus soient bruités, il est possible de retrouver via ces motifs certains sites d'interaction sur les ARNms
MicroRNAs (miRNAs) are non-coding RNAs present in eukaryotes that regulate the expression of messenger RNAs (mRNAs) up or down. These miRNAs have significant potential in future treatment of cancer and other diseases. The miRNA-mRNA interactions are intricate and involve various mechanisms, such as sequence complementarity, accessibility, and conservation. This thesis focuses on two such mechanisms, namely accessibility and intra-species conservation of the site of interaction, using experimental data from Cross-linking, Ligation And Sequencing of Hybrids (CLASH). Although the accessibility of interaction sites on mRNAs is generally observed, it is not consistent for all interactions. Intra-species conservation is a rare feature, which we explore by inferring conserved motifs from mRNA interaction sites. Although the results are noisy, in some specific cases, we manage to retrieve some mRNA interaction sites from the inferred motifs
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Books on the topic "Intra-species conservation"

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Buesching, Christina D., and Theodore Stankowich. Communication amongst the musteloids: signs, signals, and cues. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198759805.003.0005.

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Most intentional communication is intra-specific and benefits both sender and receiver. Typically, the more complex a species’ social system, the more complex is its communication. Because only ca. 10% of musteloid species are truly social, their communication is generally quite basic, while their solitary, nocturnal lifestyle is reflected in a predominance of olfactory signals. This chapter first discusses the properties of different signal modalities (visual, acoustic, olfactory and tactile), and then provides a review of musteloid communication in the context of signal functionality, starting with a section on defensive signals (warning-, alarm-, and distress signals), proceeding to other modes of inter-specific communication, such as eavesdropping on predator cues by smaller prey species (odours increasingly applied in conservation management), before moving on to more specialised intra-specific communication. It discusses resource defence and territorial marking, before concluding with a section on individual advertisement, including recognition of individuals and group-membership, and fitness advertisement.
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Ellison, Aaron M., and Lubomír Adamec. The future of research with carnivorous plants. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198779841.003.0029.

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The material presented in the chapters of Carnivorous Plants: Physiology, Ecology, and Evolution together provide a suite of common themes that could provide a framework for increasing progress in understanding carnivorous plants. All speciose genera would benefit from more robust, intra-generic classifications in a phylogenetic framework that uses a unified species concept. As more genomic, proteomic, and transcriptomic data accrue, new insights will emerge regarding trap biochemistry and regulation; interactions with commensals; and the importance of intraspecific variability on which natural selection works. Continued elaboration of field experiments will provide new insights into basic physiology; population biology; plant-animal and plant-microbe relationships; and evolutionary dynamics, all of which will aid conservation efforts and contribute to discussions of assisted migration as the climate continues to change.
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Book chapters on the topic "Intra-species conservation"

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Bedrosian, Bryan. "Avian Predators in Rangelands." In Rangeland Wildlife Ecology and Conservation, 471–504. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34037-6_14.

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AbstractManagement of avian predators in western rangelands is uniquely challenging due to differences in managing for/against particular species, management of sensitive prey species, long-standing human/wildlife conflicts, and the unique legal protections within this ecological group. In general, many avian predator species considered rangeland specialists have been declining due to habitat loss, fragmentation, human sensitivity, and direct persecution. Conversely, avian predators that are more human-tolerant and/or are subsidized by human activities are significantly increasing across rangelands. The complicated nature of inter- and intra-species guilds, coupled with human dynamics has created a challenging scenario for both management for avian predators, as well as their prey. Human-mediated population control, both legal and illegal, continues for avian predators to reduce livestock conflict, aid sensitive prey populations, and/or because of general predator persecution. Conversion of rangeland to development for energy, cultivation, and urbanization remains the largest impediment to maintaining viable, historical assemblages of avian predators. Large-scale habitat protections, reduction of invasive plants, and reducing wildfire will continue to enhance at-risk populations of predators and their prey. Further, mediating human-induced mortality risks will also aid at-risk predator populations, such as reducing direct killing (poisoning and shooting), secondary poisoning from varmint control and lead ammunition use, electrocutions, and vehicle strikes, while reducing anthropogenic subsidies can help curtail population expansion of corvids. Additional understanding of long-term, successful predator control efforts for corvids and mitigation options for declining raptors is needed to help balance the avian predator–prey dynamic in western rangelands.
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Fuwa, Nobuhiko, and Asa Jose U. Sajise. "Exploring Environmental Services Incentive Policies for the Philippine Rice Sector: The Case of Intra-Species Agrobiodiversity Conservation." In Payment for Environmental Services in Agricultural Landscapes, 1–18. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-77354-4_10.

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Fuwa, Nobuhiko, and Asa Jose U. Sajise. "Exploring Environmental Services Incentive Policies for the Philippines Rice Sector: The Case of Intra-Species Agrobiodiversity Conservation." In Payment for Environmental Services in Agricultural Landscapes, 221–38. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-72971-8_10.

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"Crashing." In Oceaning, 119–39. Duke University Press, 2024. http://dx.doi.org/10.1215/9781478059011-006.

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Drones deployed to monitor endangered species often crash. These crashes teach us that using drones for conservation is a contingent practice ensnaring humans, technologies, and animals. This chapter advances a crash theory in which pilots, conservation drones, and endangered megafauna are relata, or related actants, that intra-act, cocreating each other and a mutually constituted phenomenon. These phenomena are entangled, with either reciprocal dependencies or erosive entrapments. The crashing of conservation drones and endangered species requires an ethics of care, repair, or reworlding. Diffractions, disruptions that expose difference, result from crashes and reveal the precarious manner by which technologies, laws, and discourses bring nature and culture together. To support crash theory, this chapter presents ethnographic cases. Drones crashing into a tern colony in California and the threat of crashes in the Pacific Northwest near Puget Sound orcas disclose the impacts of drone laws.
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Barmpoutis, Panagiotis, Tania Stathaki, Jonathan Lloyd, and Magna Soelma Bessera de Moura. "Tropical Tree Species 3D Modelling and Classification Based on LiDAR Technology." In Research Anthology on Ecosystem Conservation and Preserving Biodiversity, 326–46. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-5678-1.ch017.

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Over the last decade or so, laser scanning technology has become an increasingly popular and important tool for forestry inventory, enabling accurate capture of 3D information in a fast and environmentally friendly manner. To this end, the authors propose here a system for tropical tree species classification based on 3D scans of LiDAR sensing technology. In order to exploit the interrelated patterns of trees, skeleton representations of tree point clouds are extracted, and their structures are divided into overlapping equal-sized 3D segments. Subsequently, they represent them as third-order sparse structure tensors setting the value of skeleton coordinates equal to one. Based on the higher-order tensor decomposition of each sparse segment, they 1) estimate the mode-n singular values extracting intra-correlations of tree branches and 2) model tropical trees as linear dynamical systems extracting appearance information and dynamics. The proposed methodology was evaluated in tropical tree species and specifically in a dataset consisting of 26 point clouds of common Caatinga dry-forest trees.
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Tucker, Priscilla K., and Barbara L. Lundrigan. "The Utility of Paternally Inherited Nuclear Genes in Conservation Genetics." In Molecular Genetic Approaches in Conservation, 74–86. Oxford University PressNew York, NY, 1996. http://dx.doi.org/10.1093/oso/9780195095265.003.0005.

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Abstract The mammalian Y chromosome is of special interest as a potential tool in the conservation genetics of mammalian species because of its unique mode of inheritance. With the exception of a small region that recombines with the X chromosome during meiosis, the Y chromosome is the only chromosome in the mammalian nuclear genome that does not recombine; thus, most Y chromosome¬ linked loci are clonally inherited from father to son. Clonally inherited molecules are especially useful for inferring phylogenies or pedigrees, and for detecting and characterizing population phenomena, such as bottlenecks or founder events, because they are transmitted from one generation to the next without the shuffling effects of recombination. Mitochondrial genes, which are clonally inherited through maternal lineages in most vertebrates, have proven very useful in both intra- and interspecific studies (Wilson et al., 1985; Moritz et al., 1987; Avise et al., 1987). However, variation in the mitochondrial genome, and gene phylogenies and pedigrees established using mitochondrial DNA (mtDNA), represent only the maternal side of an organism’s history. Y chromosome-linked loci provide an obvious complement to mtDNA because they represent the paternal side of an organism’s history. In effect, phylogenies based on Y-linked loci supplement phylogenies constructed from maternally inherited or Mendelian inherited loci, and thus increase the explanatory power of phylogenetic analyses. Data from Y-linked loci may be particularly useful for resolving instances where phylogenies constructed from maternally inherited mtDNA do not coincide with phylogenies constructed from Mendelian inherited loci. Such cases, for example, could result from differential introgression of mitochondrial versus Mendelian inherited genes across hybrid zones (e.g., Ferris et al., 1983; Powell, 1983; Carr et al., 1986; Tegelstrom, 1987; Carr and Hughes, 1993).
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