Relevant bibliographies by topics / Cryptic species

Academic literature on the topic 'Cryptic species'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 May 2024

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Journal articles on the topic "Cryptic species"

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Dudgeon, Steve, Janet E. Kübler, John A. West, Mitsunobu Kamiya, and Stacy A. Krueger-Hadfield. "Asexuality and the cryptic species problem." Perspectives in Phycology 4, no. 1 (May 1, 2017): 47–59. http://dx.doi.org/10.1127/pip/2017/0070.

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Zhang, Da-Yong, Kui Lin, and Ilkka Hanski. "Coexistence of cryptic species." Ecology Letters 7, no. 3 (February 9, 2004): 165–69. http://dx.doi.org/10.1111/j.1461-0248.2004.00569.x.

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Shivas, Roger G., and Lei Cai. "Cryptic fungal species unmasked." Microbiology Australia 33, no. 1 (2012): 36. http://dx.doi.org/10.1071/ma12036.

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The word cryptic is derived from the Greek adjective krupt�s which means hidden. Morphologically indistinguishable species that have been revealed by molecular phylogenetic methods, and 37ultimately only recognised by their DNA sequences, are referred to as cryptic species. The importance of cryptic species for plant pathologists is that they may have significant differences in the severity of diseases they cause, host range and geographic distribution. It is these differences that are of concern to many biosecurity agencies, particularly in Australia.
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Cruse, Michael, Robin Telerant, Thomas Gallagher, Thomas Lee, and John W. Taylor. "Cryptic species inStachybotrys chartarum." Mycologia 94, no. 5 (September 2002): 814–22. http://dx.doi.org/10.1080/15572536.2003.11833175.

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Bannikova, Anna, Vladimir Lebedev, Anna Dubrovskaya, Evgenia Solovyeva, Viktoria Moskalenko, Boris Kryštufek, Rainer Hutterer, et al. "Genetic evidence for several cryptic species within theScarturus elaterspecies complex (Rodentia: Dipodoidea): when cryptic species are really cryptic." Biological Journal of the Linnean Society 126, no. 1 (December 3, 2018): 16–39. http://dx.doi.org/10.1093/biolinnean/bly154.

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Pérez-Ponce de León, Gerardo, and Robert Poulin. "Taxonomic distribution of cryptic diversity among metazoans: not so homogeneous after all." Biology Letters 12, no. 8 (August 2016): 20160371. http://dx.doi.org/10.1098/rsbl.2016.0371.

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Cryptic diversity plagues estimates of biodiversity, conservation efforts and attempts to control diseases and invasive species. Here, we re-visit a decade-old assessment of whether or not cryptic species are homogeneously reported among higher metazoan taxa. We compiled information from an extensive survey of the literature to recover all reports of cryptic species among metazoans. After correcting for currently known species richness and research effort per taxon, we find that cryptic species are over-reported in some taxa and under-reported in others. Although several taxa showing either a lack or an excess of reported cryptic species were poorly studied invertebrate groups, we found that cryptic species were over-reported in amphibians, reptiles and crustaceans, all relatively well-studied groups. The observed heterogeneity in the distribution of reported cryptic species may reflect taxon-specific properties affecting either the propensity for cryptic species to be formed or their likelihood of being detected by conventional taxonomy. Either way, the implications of cryptic diversity may not apply equally across all taxonomic groups.
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Lombard, Natasha, Margaretha Marianne Le Roux, and Ben-Erik van Wyk. "Electronic identification keys for species with cryptic morphological characters: a feasibility study using some Thesium species." PhytoKeys 172 (February 16, 2021): 97–119. http://dx.doi.org/10.3897/phytokeys.172.53484.

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The popularity of electronic identification keys for species identification has increased with the rapid technological advancements of the 21st century. Although electronic identification keys have several advantages over conventional textual identification keys and work well for charismatic species with large and clear morphological characters, they appear to be less feasible and less effective for species with cryptic morphology (i.e. small, obscure, variable characters and/or complicated structures associated with terminology that is difficult to interpret). This is largely due to the difficulty in presenting and illustrating cryptic morphological characters unambiguously. When taking into account that enigmatic species with cryptic morphology are often taxonomically problematic and therefore likely exacerbate the taxonomic impediment, it is clear that species groups with cryptic morphology (and all the disciplines dependent on their correct identification) could greatly benefit from a user-friendly identification tool, which clearly illustrates cryptic characters. To this end, the aim of this study was to investigate and develop best practices for the unambiguous presentation of cryptic morphological characters using a pilot interactive photographic identification key for the taxonomically difficult plant genus Thesium (Santalaceae), as well as to determine its feasibility. The project consisted of three stages: (1) software platform selection, (2) key construction and (3) key evaluation. The proposed identification key was produced with Xper3 software and can be accessed at http://www.xper3.fr/xper3GeneratedFiles/publish/identification/1330098581747548637/mkey.html. Methodologies relating to amongst others, character selection and delineation, visual and textual descriptions, key construction, character coding and key evaluation are discussed in detail. Seventeen best practices identified during this study are subsequently suggested for future electronic key compilation of species with cryptic morphology. This study indicates that electronic identification keys can be feasible and effective aids for the identification of species with cryptic morphological characters when the suggested best practices are followed.
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Schlick-Steiner, Birgit C., Bernhard Seifert, Christian Stauffer, Erhard Christian, Ross H. Crozier, and Florian M. Steiner. "Without morphology, cryptic species stay in taxonomic crypsis following discovery." Trends in Ecology & Evolution 22, no. 8 (August 2007): 391–92. http://dx.doi.org/10.1016/j.tree.2007.05.004.

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Cruse, Michael, Robin Telerant, Thomas Gallagher, Thomas Lee, and John W. Taylor. "Cryptic Species in Stachybotrys chartarum." Mycologia 94, no. 5 (September 2002): 814. http://dx.doi.org/10.2307/3761696.

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Hayashibara, T., and K. Shimoike. "Cryptic species of Acropora digitifera." Coral Reefs 21, no. 2 (July 2002): 224–25. http://dx.doi.org/10.1007/s00338-002-0229-6.

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Dissertations / Theses on the topic "Cryptic species"

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Stevens, Peter M. (Peter Michael). "Host races and cryptic species in marine symbionts." Thesis, University of Auckland, 1990. http://hdl.handle.net/2292/2321.

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The Pinnotheridae is a family of decapod crustaceans comprising more than 120 mostly microphagous and commensal species. As symbionts of a variety of aquatic invertebrates, pinnotherids typically live in an intimate association with their host depending on it for an almost lifelong source of nourishment and shelter, together with a site for mating. The New Zealand pinnotherid fauna was thought to comprise only one species, Pinnotheres novaezelandiae Filhol, associated with a multitude of hosts. Recently, however, a separate species, P. atrinicola Page, has been described which is regarded as being host specific to the horse mussel Atrina zelandica Gray. In this context, the relationship between pea crabs and their hosts is of special interest, and is the focus of this thesis. An investigation into the population dynamics of the symbiotic relationship between P novaezelandiae and its host, the green-lip mussel Perna canaliculus, at Westmere Reef, Auckland between May 1986 and July 1988 is reported. Ovigerous females and Stage I males and females were found throughout the sampling period, indicating that reproduction is continuous in this species. The developmental composition of the pea crab population reveals that soft-shelled males, usually regarded as an anomalous instar, formed a significant component of the pea crab population at all times. It is suggested that these individuals represent a distinct facies, analogous to the Stage II female instar. The presence of a pea crab was found to have a highly significant detrimental effect on mussel condition. Analysis of the distribution of pea crabs among the mussel population indicates mature crabs display a repulsed distribution favouring to live a solitary existence, whereas younger (pre-hard and Stage I) crabs showed a random distribution in broad agreement with a theoretical Poisson distribution. The biological status of the two described taxa was investigated by a survey of electrophoretically detectable genetic variation of populations from throughout the North Island of New Zealand. Pea crabs from 18 host populations from nine geographically disparate localities were subjected to cellulose acetate and poly-acrylamide electrophoresis. Forty-one enzyme systems were screened for polymorphism. Clearly resolved enzyme phenotypes were obtained at 23 presumptive loci, of which l5 exhibited polymorphism. An analysis of electromorph frequency data revealed that both taxa are highly genetically structured and typified by high levels of polymorphism and heterozygosity; results atypical of brachyuran crabs. P- atrinicola was found to exhibit strong patterns of geographic differentiation and clinal variation in electromorph frequency. Of particular significance is the pattern of genetic differentiation observed among populations of p. novaezelandiae. Hierarchical F-statistics indicated that the preponderance of inter-population differentiation can be attributed to differences in electromorph frequency among host-associated populations of P. novaezelandiae within a sampling locality. Geographic differentiation was a comparatively insignificant factor in the structuring of the sampled P. novaezelandiae populations. Individuals belonging to two genetically very distinct units were found within a newly recorded host species, Mactra ovata ovata Gray at Green and Wood Bays, Manukau Harbour. Hardy-Weinberg analyses indicate the host-associated populations of P. novaezelandiae exhibit such a pronounced pattern of homozygote excess and disturbance from genetic equilibrium in sympatry that it is unreasonable to consider them as a single panmictic population. It is concluded that significant biological discontinuities based on host origin exist within the currently recognised taxon. Such a conclusion is supported by data presented on qualitative differences in host recognition observed between different host-associated populations of P. novaezelandiae. Conservatively these discontinuities indicate host race development, although a viable alternate hypothesis would be the presence of cryptic, host-specific biological species within P. novaezelandiae. Hostrace development as found here is a well recognised phenomenon in insect-host and parasitoid-host relationships, although little studied in marine symbiotic relationships. Such a phenomenon has important implications for ecological, behavioural and physiological studies on marine symbionts in general.
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Stevens, Peter M. "Host races and cryptic species in marine symbionts." Connect to this title online, 1990. http://hdl.handle.net/2292/2321.

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Barlow, Katherine Elisabeth. "Resource partitioning between two cryptic species of Pipistrellus." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361107.

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Talbot, Jessica Jane. "Common and cryptic Aspergillus species – one health pathogens." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/19930.

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Fungal Aspergillus species cause invasive and chronic disease in humans and other animals. This thesis investigated cryptic and common Aspergillus species in A. section Fumigati; their prevalence in Australia and virulence factors impacting the efficacy of the most commonly used antifungal drugs, triazoles. An environmental (soil and air) investigation of 104 Aspergillus isolates for cryptic A. sect. Fumigati species, focusing on the A. viridinutans species complex (AVSC), found a moderate risk of exposure to known pathogenic and cryptic species, but low risk AVSC exposure in indoor and outdoor domestic environments. A new AVSC species was discovered, A. frankstonensis (morphology; ITS region, BenA, CalM, MCM7, actin and RPB2 gene sequencing; antifungal susceptibility; and extrolite analysis are described). Sequencing (ITS, BenA) of clinical isolates from captive birds (n=30) identified A. fumigatus as the most common cause of disease and A. restrictus as pathogenic. Triazole resistance amongst A. fumigatus isolates from clinical and environmental samples is documented over two studies, identifying a low prevalence in Australia. The first investigated pathogenic A. fumigatus isolates from dogs and cats (n=50), finding triazole resistance in one Australian isolate from a dog in the early 1990’s (Sensititre™ YeastOne™YO8). The second investigated clinical (148 human, 21 veterinary) and environmental (n=185) Australian isolates (VIPcheck™ and Sensititre™ YeastOne™ YO10), confirming triazole resistance in three human origin isolates, associated with cyp51A mutations TR34/L98H and G54R. Triazole susceptibility (CLSI) of 37 AVSC isolates were investigated, detecting high triazole minimum inhibitory concentrations (84% of isolates). Compared to wild-type A. fumigatus, high rates of cyp51A mutations were detected on sequencing; however protein homology modelling did not confer resistance. This research informs our understanding of A. sect. Fumigati pathogens in Australia.
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Fourie, Arista. "Distinguishing between cryptic species in the Ceratocystis fimbriata sensu lato species complex." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/62102.

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Witt, Jonathan. "Cryptic amphipod species in the Laurentian Great Lakes Basin." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ35946.pdf.

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Mrinalini, ? "Species delimitation and identification in morphologically cryptic Asian pit vipers." Thesis, Bangor University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540404.

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Monis, Paul T. "Molecular systematics of the protozoan parasite Giardia intestinalis : identification of cryptic species /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phm744.pdf.

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Moeser, Andrew A. "Genetic analyses of sympatric cryptic species in the Neotropical catfish, Pimelodella chagresi." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82294.

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I used microsatellite markers to assess reproductive isolation between cryptic, sympatric lineages of a freshwater catfish (Pimelodella chagresi ). These are "cryptic" lineages because they cannot be distinguished visually on the basis of morphological characters, and currently they are recognized as a single species. Previous analyses utilizing mitochondrial DNA (mtDNA) indicated that two highly divergent lineages are present in lower Central America, and that these lineages are the result of independent colonization events from South American source populations. I isolated eight dinucleotide repeats from P. chagresi and designed primers to amplify these microsatellite loci. I sampled fishes from four Panamanian watersheds. The congruence of microsatellite data with mtDNA indicated that these taxa are reproductively isolated and should be considered as separate species despite the lack of morphological differentiation. Both lineages exhibit a high degree of divergence among populations inhabiting isolated freshwater drainages, but the lineages differ in their intra-watershed population structure.
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Scriven, Jessica J. "The ecology and population genetics of a complex of cryptic bumblebee species." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24771.

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Bumblebees are ecologically and economically important as pollinators, but some species are suffering severe declines and range contractions. In this thesis, three cryptic bumblebee species are studied to elucidate differences in their distribution, ecology and population genetics. As a result of their high morphological similarity, very little is known about the lucorum complex species: B. lucorum, B, cryptarum and B. magnus. In this study, their distributions across Great Britain were assessed using molecular methods, revealing that B. lucorum was the most abundant and most generalist of the three species, whereas B. magnus was the rarest and most specialised, occurring almost exclusively on heathland. Additionally, both B. magnus and B. cryptarum were more likely to be present at sites with cooler summer temperatures. Cryptic species represent interesting models to investigate the levels of niche differentiation required to avoid competitive exclusion. Characterising the niches of these species at a single site across the flight season revealed differences along three niche dimensions: temporal activity, weather sensitivity and forage-resource use. These species exhibited asymmetric niche overlap; a combination of ecological divergence and spatio-temporal heterogeneity may contribute to maintaining them in sympatry. Population genetic studies can be highly informative for understanding species ecology and for conservation management. The differences in habitat specialisation exhibited by these bumblebee species provide the opportunity to test conflicting hypotheses about links between dispersal and ecological specialisation: are habitat specialists selected to have low or high dispersal ability? Based on microsatellite analysis, the generalist B. lucorum had high levels of genetic diversity and little population structure across large spatial scales. The habitat specialist B. magnus had the lowest genetic diversity but similar levels of population differentiation to the moderate generalist, B. cryptarum. However, unlike B. cryptarum, B. magnus population differentiation was not affected by geographic distance, suggesting that this specialist species may maintain effective dispersal across large scales despite being restricted to a fragmented habitat. Bergmann’s rule is a well-known ecogeographic rule describing geographical patterns of body size variation, whereby larger endothermic species are found more commonly at higher latitudes. Ectotherms, including insects, have been suggested to follow converse Bergmann’s gradients, but the facultatively endothermic nature of bumblebees makes it unclear which pattern they should adhere to. This thesis reports caste-specific differences in body size between the three lucorum complex species in agreement with Bergmann’s rule: queens and males of B. cryptarum and B. magnus, which were found more commonly at higher latitudes and at sites with cooler temperatures, were larger than those of B. lucorum. Population genetic studies of invertebrates generally require the destruction of large numbers of individuals, which is often undesirable. Testing a variety of faecal collection and DNA extraction methods demonstrated that it is possible to obtain DNA of sufficient quality for genotyping from bumblebee faeces, without harming the individuals. This method would be valuable for studies of rare or declining bee species, for queens in reintroduction projects, and may be applicable to other arthropods. Overall this thesis contributes substantially to our knowledge of the ecology and population genetics of three important pollinator species. It provides data to inform species conservation, as well as understanding of ecosystem functioning and population dynamics. Furthermore, it successfully uses these cryptic species as a model to test several fundamental ecological theories.
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Books on the topic "Cryptic species"

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Zeng, Leo. A Study on the Creation, Impact and Legal Issues of Crypto Special Drawing Rights. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9975-0.

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Irizarry, Polianna. #TeamSwami Zine. [San Jose, CA?]: Poliana Irizarry, 2017.

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Monro, Alexandre K., and Simon J. Mayo, eds. Cryptic Species. Cambridge University Press, 2022. http://dx.doi.org/10.1017/9781009070553.

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Cryptic species are organisms which look identical, but which represent distinct evolutionary lineages. They are an emerging trend in organismal biology across all groups, from flatworms, insects, amphibians, primates, to vascular plants. This book critically evaluates the phenomenon of cryptic species and demonstrates how they can play a valuable role in improving our understanding of evolution, in particular of morphological stasis. It also explores how the recognition of cryptic species is intrinsically linked to the so-called 'species problem', the lack of a unifying species concept in biology, and suggests alternative approaches. Bringing together a range of perspectives from practicing taxonomists, the book presents case studies of cryptic species across a range of animal and plant groups. It will be an invaluable text for all biologists interested in species and their delimitation, definition, and purpose, including undergraduate and graduate students and researchers.
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Monro, Alexandre K., and Simon J. Mayo. Cryptic Species: Morphological Stasis, Circumscription, and Hidden Diversity. Cambridge University Press, 2022.

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Monro, Alexandre K., and Simon J. Mayo. Cryptic Species: Morphological Stasis, Circumscription, and Hidden Diversity. Cambridge University Press, 2022.

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Monro, Alexandre K., and S. J. Mayo. Cryptic Species: Morphological Stasis, Circumscription, and Hidden Diversity. Cambridge University Press, 2022.

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Monro, Alexandre K., and Simon J. Mayo. Cryptic Species: Morphological Stasis, Circumscription, and Hidden Diversity. Cambridge University Press, 2022.

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Borman, Andrew M. Fungal taxonomy and nomenclature. Edited by Christopher C. Kibbler, Richard Barton, Neil A. R. Gow, Susan Howell, Donna M. MacCallum, and Rohini J. Manuel. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198755388.003.0002.

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This chapter summarizes historical and modern approaches to fungal taxonomy, the current taxonomic standing of medically important fungi, and the implications for fungal nomenclature following the recent Amsterdam Declaration on Fungal Nomenclature, which prohibits dual nomenclature. Fungi comprise an entire kingdom, containing an estimated 1–10 million species. Traditionally, fungal identification was based on examination of morphological and phenotypic features, including the type of sexual spores they form, and method of formation, and structural features of their asexual spores. Thus, many fungi have been described and named independently several times based on either their sexual or asexual stages, resulting in a single genetic entity having multiple names. Recent molecular approaches to fungal identification have led to profound changes in fungal nomenclature and taxonomy. Certain phyla have now been disbanded, cryptic species have been identified via molecular approaches, and long-recognized species have been transferred to new genera based on genotypic comparisons.
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Sheppard, Charles. 4. The resulting structure—a reef. Oxford University Press, 2014. http://dx.doi.org/10.1093/actrade/9780199682775.003.0004.

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‘The resulting structure—a reef’ shows that coral reef profiles, composed of reef flats, reef crests, and reef slopes, are remarkably consistent. The general structure is complicated by shifts of sea level over geological time, so the basic pattern will have superimposed upon it evidence of episodic growth and erosion. The environmental conditions on the reef slope are ideal for most corals and other reef life including the soft corals and sponges, so this is where most species are found. The cryptic, or hidden, life of the coral reefs is discussed along with the rugosity of the corals, and the structure and life of the sand in the back reef area.
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Wich, Serge A., and Alex K. Piel, eds. Conservation Technology. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198850243.001.0001.

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The global loss of biodiversity is occurring at an unprecedented pace. Despite the considerable effort devoted to conservation science and management, we still lack the basic data on the distribution and density of most animal and plant species, which in turn hampers our efforts to study changes over time. In addition, we often lack behavioural data from the very animals most influenced by environmental changes; this is largely due to the financial and logistical limitations associated with gathering scientific data on animals that are either widely distributed, cryptic, or negatively influenced by human presence. To overcome these limitations, conservationists are increasingly employing technology to facilitate such data collection. The use of camera traps, acoustic sensors, satellite data, drones, and sophisticated computer algorithms to analyse the large data sets collected are becoming increasingly common. Although there are several specialist books on some of these technologies, there is currently no overarching volume that describes the available technology for conservation and evaluates its varied applications. This edited volume will fill this void, bringing together a team of international experts using a diverse range of approaches.
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Book chapters on the topic "Cryptic species"

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Bordallo, Juan-Julián, and Antonio Rodríguez. "Cryptic and New Species." In Soil Biology, 39–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40096-4_3.

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Highton, Richard. "Detecting Cryptic Species Using Allozyme Data." In The Biology of Plethodontid Salamanders, 215–41. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4255-1_10.

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Watanabe, Katsutoshi, Koji Tominaga, Jun Nakajima, Ryo Kakioka, and Ryoichi Tabata. "Japanese Freshwater Fishes: Biogeography and Cryptic Diversity." In Species Diversity of Animals in Japan, 183–227. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56432-4_7.

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Simon, Ellen M., David L. Nanney, and F. Paul Doerder. "The “Tetrahymena pyriformis” complex of cryptic species." In Protist Diversity and Geographical Distribution, 131–46. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-90-481-2801-3_10.

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Souto, Javier, Oscar Reverter-Gil, and Eugenio Fernández-Pulpeiro. "Schizomavella grandiporosa and Schizomavella sarniensis: Two Cryptic Species." In Lecture Notes in Earth System Sciences, 357–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-16411-8_24.

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Briceño, R. D., and W. G. Eberhard. "Species-Specific Behavioral Differences in Tsetse Fly Genital Morphology and Probable Cryptic Female Choice." In Cryptic Female Choice in Arthropods, 403–30. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17894-3_15.

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Paterson, H. E. H. "The Recognition of Cryptic Species Among Economically Important Insects." In Springer Series in Experimental Entomology, 1–10. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4612-3016-8_1.

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Schenk, Janina, and Walter Traunspurger. "Sampling and processing of freshwater nematodes with emphasis on molecular methods." In Ecology of freshwater nematodes, 31–57. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789243635.0002.

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Abstract This chapter provides an introduction to current methods of nematode sampling and processing, with the latter including molecular methods as well. It highlights that nematode sampling and processing for different habitats will require different sampling methods; nematode identification can be achieved with morphological or molecular approaches; the analysis of specific gene fragments can be used to delimitate nematode species; and molecular species identification can give further information about phylogenetic background and cryptic species.
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Dodson, Stanley I., Andrey K. Grishanin, Kevin Gross, and Grace A. Wyngaard. "Morphological analysis of some cryptic species in the Acanthocyclops vernalis species complex from North America." In Aquatic Biodiversity, 131–43. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-007-1084-9_9.

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Runge, Fabian, Young-Joon Choi, and Marco Thines. "Phylogenetic investigations in the genus Pseudoperonospora reveal overlooked species and cryptic diversity in the P. cubensis species cluster." In The Downy Mildews - Biology, Mechanisms of Resistance and Population Ecology, 3–14. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-1281-2_2.

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Conference papers on the topic "Cryptic species"

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Mills, Penelope J. "Chromosomal variation and cryptic species in theApiomorpha minorspecies complex." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.115289.

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Cristofaro, Massimo. "Cryptic species and biological control: A brave new world?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.109219.

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Baur, Hannes. "Morphometrics and the description of cryptic species in the Chalcidoidea." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93130.

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Austin, Bryn. "Tylosisopods in the Indo-Pacific: Are there any cryptic species?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.115496.

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Torres, Ryan Jacob. "Investigating cryptic species ofChlorochroa uhleriStål (Hemiptera: Pentatomidae), a green stink bug." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.113076.

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Kurushima, Hiroaki. "Discovery of multiple cryptic species of theAuplopus carbonariusspecies-complex (Hymenoptera: Pompilidae)." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.113424.

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Liu, Shu-Sheng. "Further insight into reproductive incompatibility between putative cryptic species of theBemisia tabaciwhitefly complex." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.107251.

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Allmon, Warren, and Caren Shin. "LITERATURE SUGGESTS CRYPTIC SPECIES ARE RARE IN EXTANT SHELLED MARINE GASTROPODS: IMPLICATIONS FOR INTERPRETING SPECIES IN THE FOSSIL RECORD." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-379881.

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Ashlock, Daniel, and Taika von Konigslow. "Diagnostic character location within the cryptic skipper butterfly species complex with an evolutionary algorithm." In 2009 IEEE Symposium on Computational Intelligence in Bioinformatics and Computational Biology (CIBCB). IEEE, 2009. http://dx.doi.org/10.1109/cibcb.2009.4925713.

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Ris, Nicolas. "Disentangling taxonomic issues and reproductive isolation patterns in complexes of cryptic species in the genusTrichogramma." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93858.

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Reports on the topic "Cryptic species"

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Gazit, Nadav, Katherine Hade, Suzanne Macey, and Stefanie Siller. Modeling Suitable Habitat for a Species of Conservation Concern: An Introduction to Spatial Analysis with QGIS. American Museum of Natural History, 2020. http://dx.doi.org/10.5531/cbc.ncep.0068.

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Spatial analysis has become a central practice in the field of conservation, allowing scientists to model and explore geographic questions on biodiversity and ecological systems. GIS (Geographic Information System) is an important integrative tool for mapping, analyzing, and creating data for spatial analyses. In this exercise, students use QGIS, an open-source GIS program, to model suitable habitat for a cryptic mammal species. The exercise guides students through the process of: 1) organizing, cleaning, and clipping vector and raster data within QGIS; 2) analyzing climate, habitat, and additional geographic data along with species occurrence data; and 3) developing a map of suitable projected habitat for the species of interest. Students then apply their analyses to critically consider the implications for surveying and conservation action.
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Pavlovic, Noel, Barbara Plampin, Gayle Tonkovich, and David Hamilla. Special flora and vegetation of Indiana Dunes National Park. National Park Service, 2024. http://dx.doi.org/10.36967/2302417.

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The Indiana Dunes (comprised of 15 geographic units (see Figure 1) which include Indiana Dunes National Park, Dunes State Park, and adjacent Shirley Heinze Land Trust properties) are remarkable in the Midwest and Great Lakes region for the vascular plant diversity, with an astounding 1,212 native plant species in an area of approximately 16,000 acres! This high plant diversity is the result of the interactions among postglacial migrations, the variety of soil substrates, moisture conditions, topography, successional gradients, ?re regimes, proximity to Lake Michigan, and light levels. This richness is all the more signi?cant given the past human alterations of the landscape resulting from logging; conversion to agriculture; construction of transportation corridors, industrial sites, and residential communities; ?re suppression; land abandonment; and exotic species invasions. Despite these impacts, multiple natural areas supporting native vegetation persist. Thus, each of the 15 units of the Indiana Dunes presents up to eight subunits varying in human disturbance and consequently in ?oristic richness. Of the most signi?cant units of the park in terms of number of native species, Cowles Dunes and the Dunes State Park stand out from all the other units, with 786 and 686 native species, respectively. The next highest ranked units for numbers of native species include Keiser (630), Furnessville (574), Miller Woods (551), and Hoosier Prairie (542). The unit with lowest plant richness is Heron Rookery (220), with increasing richness in progression from Calumet Prairie (320), Hobart Prairie Grove (368), to Pinhook Bog (380). Signi?cant natural areas, retaining native vegetation composition and structure, include Cowles Bog (Cowles Dunes Unit), Howes Prairie (Cowles Dunes), Dunes Nature Preserve (Dunes State Park), Dunes Prairie Nature Preserve (Dunes State Park), Pinhook Bog, Furnessville Woods (Furnessville), Miller Woods, Inland Marsh, and Mnoke Prairie (Bailly). Wilhelm (1990) recorded a total of 1,131 native plant species for the ?ora of the Indiana Dunes. This was similar to the 1,132 species recorded by the National Park Service (2014) for the Indiana Dunes. Based on the nomenclature of Swink and Wilhelm (1994), Indiana Dunes National Park has 1,206 native plant species. If we include native varieties and hybrids, the total increases to 1,244 taxa. Based on the nomenclature used for this report?the Flora of North America (FNA 2022), and the Integrated Taxonomic Information System (ITIS 2022)?Indiana Dunes National Park houses 1,206 native vascular plant species. As of this writing (2020), the Indiana Dunes is home to 37% of the species of conservation concern in Indiana (241 out of 624 Indiana-listed species): state extirpated = 10 species, state endangered = 75, and state threatened = 100. Thus, 4% of the state-listed species in the Indiana Dunes are extirpated, 31% endangered, and 41% threatened. Watch list and rare categories have been eliminated. Twenty-nine species once documented from the Indiana Dunes may be extirpated because they have not been seen since 2001. Eleven have not been seen since 1930 and 15 since 1978. If we exclude these species, then there would be a total of 1,183 species native to the Indiana Dunes. Many of these are cryptic in their life history or diminutive, and thus are di?cult to ?nd. Looking at the growth form of native plants, <1% (nine species) are clubmosses, 3% (37) are ferns, 8% (297) are grasses and sedges, 56% (682) are forbs or herbs, 1% (16) are herbaceous vines, <1% (7) are subshrubs (woody plants of herbaceous stature), 5% (60) are shrubs, 1% (11) are lianas (woody vines), and 8% (93) are trees. Of the 332 exotic species (species introduced from outside North America), 65% (219 species) are forbs such as garlic mustard (Alliaria petiolata), 15% (50 species) are graminoids such as phragmites (Phragmites australis ssp. australis), 2% (seven species) are vines such as ?eld bindweed (Convulvulus arvensis), <1% (two species) are subshrubs such as Japanese pachysandra (Pachysandra terminalis), 8% (28 species) are shrubs such as Asian bush honeysuckle (Lonicera spp.), 1% (three species) are lianas such as oriental bittersweet (Celastrus orbiculatus), and 8% (23 species) are trees such as tree of heaven (Ailanthus altissimus). Of the 85 adventive species, native species that have invaded from elsewhere in North America, 14% (11 species) are graminoids such as broom sedge (Andropogon virginicus), 57% (48 species) are forbs such as fall phlox (Phlox paniculata), 5% (six species) are shrubs such as Carolina allspice (Calycanthus floridus), 3% (two species) are subshrubs such as holly leaved barberry (Berberis repens), 1% (one species) is a liana (trumpet creeper (Campsis radicans), 3% two species) are herbaceous vines such as tall morning glory (Ipomoea purpurea), and 17% (15 species) are trees such as American holly (Ilex opaca). A total of 436 species were found to be ?special? based on political rankings (federal and state-listed threatened and endangered species), species with charismatic ?owers, and those that are locally rare.
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Gardner, Coral, Matt Goode, Tom Philippi, and Don Swann. Using transect sampling and road cruising surveys to estimate abundance and distribution of sidewinders (Crotalus cerastes) in Saguaro National Park, Tucson Mountain District: Final report. National Park Service, 2024. http://dx.doi.org/10.36967/2302204.

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Saguaro National Park, Tucson Mountain District (TMD) includes a portion of the Tucson Mountains and adjacent lower bajada landscapes along the western boundary in Avra Valley. Threats to TMD include urban encroachment, busy commuter roads running through the interior and along the boundaries, agricultural development, and the Arizona Canal and water recharge basin. Plans to route Interstate 11 within 400 m of the western boundary have led to concerns over projected negative impacts on wildlife. Among the species of concern is the Sidewinder (Crotalus cerastes), primarily because the population residing in TMD represents the easternmost distribution of this iconic species. Historical records are limited to a handful of localities; however, given their cryptic lifestyle, and the lack of intensive survey effort, there was a need to determine if the species is truly rare or just apparently rare but difficult to detect. To better inform management, we used distance sampling along transects and washes and road cruising surveys to examine density and distribution of Sidewinders in TMD. From May-September, 2022, encompassing both the dry pre-monsoon season and the wet monsoon season, we conducted 519 distance sampling surveys totaling 814.61 km and 69 road cruising surveys totaling 1,997.47 km in upland and wash environments. Our efforts produced 421 total snake observations, which included only nine Sidewinder observations. The small number of Sidewinders observations proved to be insufficient for model convergence. Although we were unable to obtain density estimates of Sidewinders, data from both distance sampling and road cruising surveys provided valuable information on distribution of the species. As expected, we only observed Sidewinders in the westernmost portion of TMD in sandy environments dominated by yellow palo verde and creosote bush. Because we observed a relatively large number (n = 229) of Western Diamond-backed Rattlesnakes (Crotalus atrox), the most commonly observed species, we were able to obtain robust density estimates, which has rarely been done for snakes of any kind. Results revealed that C. atrox density varied by season, with more than double the number of detections during the rainy monsoon season, compared to the dry pre-monsoon season. We recommend that TMD staff conduct repeated road cruising surveys over time to make inferences about population trends that can be compared before and after construction of I-11.
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Financial Infrastructure Report 2023. Banco de la República, December 2023. http://dx.doi.org/10.32468/rept-sist-pag.eng.2023.

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Introduction The Financial Infrastructure Report is a product of Banco de la República’s (Banrep) continuous efforts to scrutinize financial market infrastructures (FMIs) in Colombia, besides being a contribution to analyzing and monitoring the country’s financial stability. If FMIs are not managed properly, they can pose significant risks to the financial system and be a possible source of contagion, especially in periods of market stress. The domestic financial infrastructure during 2022 was safe and efficient, allowing the payment system and financial markets to operate normally, which lent stability and confidence to its participants. This 2023 edition of the Report includes analysis on the mitigation of intraday liquidity risk in the large-value payment system (CUD), as well as credit and liquidity risk based on countercyclical practices for the management of initial and variation margins in the Cámara de Riesgo Central de Contraparte S.A. (CRCC). In addition, the Report addresses two topics that are at the center of international debate. The first deals with cyber risk, an issue that cuts across the entire domestic financial infrastructure. It is considered one of the most relevant risks; therefore, its effective management has been the focus of recommendations by multilateral organizations. On this occasion, a section is included that outlines these recommendations and focuses on highlights in local progress towards achieving substantial levels of cyber resilience in the Colombian payment system. It is worth noting that Banco de la República is moving forward with a research agenda to quantify the impact instances of cyber risk could have on the payment system and on financial stability. The second topic addresses the need to analyze the adoption of special frameworks for orderly settlement on the part of central counterparties (CCPs), so as to mitigate systemic risk, recognizing the role these types of entities play in the development of markets and financial stability, as well as their essential contribution to mitigating counterparty and liquidity risks. As for retail payments, the use of electronic payment instruments rose significantly in value during 2022 compared to 2021. Transactional data shows the increase in the use of electronic transfers, both intra- and interbank, was particularly important, having become an object of greater innovation, as evidenced, for example, by the use of mobile wallets. Although the adoption for electronic transfers and debit and credit cards has increased in Colombia over the last ten years, compared to other economies, the country still has low levels in this respect. According to the most recent survey on perception of the use of payment instruments conducted by Banrep (2022), cash continues to be the instrument most used by Colombians for regular payments involving small amounts. This points to an important area for increasing the adoption of digital payments, which would materialize with implementation of the different initiatives the industry and the financial authorities (Ministry of Finance-URF, the Office of the Financial Superintendent of Colombia and Banco de la República) are carrying out to develop the instant payments ecosystem. On the other hand, analyses of the risks associated with crypto assets, which are understood as alternatives to the regulated assets in the traditional financial system, but traded in an unregulated digital environment, are also relevant. In this respect, the Report looks at the potential risks that could arise from the added adoption of stablecoins in economies, specifically in a global context where authorities are studying possibilities for using different mechanisms to contain the risks inherent in crypto assets. The third section of the Report deals with aspects such as smart contracts and programmable money, which are innovations that could be considered in an eventual issue of digital currencies by central banks. In keeping with the previous editions of this Report on matters related to central bank digital currencies (CBDC), this edition explains how these two technological functionalities could accompany the design of a retail CBDC, as well as some of the risks that should be considered. Also addressed in this section is the topic of standardized messaging, which is a trend in the field of payments. Reference is made to the United Kingdom’s experience with the adoption of standardized messaging, and its contributions to interoperability.
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