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Artykuły w czasopismach na temat "Reptile populations"
McInerny, C. J. "The study and conservation of adders in Scotland". Glasgow Naturalist 27, Supplement (2018): 67–71. http://dx.doi.org/10.37208/tgn27s10.
Pełny tekst źródłaTeixeira, Camila Palhares, Luiza Passos, Vinicius D. L. R. Goulart, Andre Hirsch, Marcos Rodrigues i Robert J. Young. "Evaluating patterns of human–reptile conflicts in an urban environment". Wildlife Research 42, nr 7 (2015): 570. http://dx.doi.org/10.1071/wr15143.
Pełny tekst źródłaSlavenko, Alex, Erez Maza i Yuval Itescu. "Results of the First Herpetological Survey of Israel’s Mediterranean Coastal Islets". Russian Journal of Herpetology 28, nr 4 (1.09.2021): 231–36. http://dx.doi.org/10.30906/1026-2296-2021-28-4-231-236.
Pełny tekst źródłaMaute, Kimberly, Kristine French, C. Michael Bull, Paul Story i Grant Hose. "Current insecticide treatments used in locust control have less of a short-term impact on Australian arid-zone reptile communities than does temporal variation". Wildlife Research 42, nr 1 (2015): 50. http://dx.doi.org/10.1071/wr14194.
Pełny tekst źródłaVasconcelos, Raquel, Eudald Pujol-Buxó, Gustavo A. Llorente, Ahmed Saeed i Salvador Carranza. "Micro-Hotspots for Conservation: An Umbrella Tree Species for the Unique Socotran Reptile Fauna". Forests 11, nr 3 (21.03.2020): 353. http://dx.doi.org/10.3390/f11030353.
Pełny tekst źródłaSchlesinger, CA, JC Noble i T. Weir. "Fire Studies in Mallee (Eucalyptus Spp.) Communities of Western New South Wales: Reptile and Beetle Populations in Sites of Differing Fire History." Rangeland Journal 19, nr 2 (1997): 190. http://dx.doi.org/10.1071/rj9970190.
Pełny tekst źródłaVera, David Gustavo, Diego Omar Di Pietro, Germán Tettamanti, Manuel Eirin, Clara Trofino Falasco, María Florencia Aranguren, Jorge Daniel Williams, Federico Pablo Kacoliris i Igor Berkunsky. "An annotated list of the reptiles of the highland grassland of Tandilia Mountains, Argentina". Neotropical Biology and Conservation 16, nr 1 (9.03.2021): 185–204. http://dx.doi.org/10.3897/neotropical.16.e60629.
Pełny tekst źródłaHu, Yang, Graeme Gillespie i Tim S. Jessop. "Variable reptile responses to introduced predator control in southern Australia". Wildlife Research 46, nr 1 (2019): 64. http://dx.doi.org/10.1071/wr18047.
Pełny tekst źródłaKverková, Kristina, Alexandra Polonyiová, Lukáš Kubička i Pavel Němec. "Individual and age-related variation of cellular brain composition in a squamate reptile". Biology Letters 16, nr 9 (wrzesień 2020): 20200280. http://dx.doi.org/10.1098/rsbl.2020.0280.
Pełny tekst źródłaTriska, Maggie D., Michael D. Craig, Vicki L. Stokes, Roger P. Pech i Richard J. Hobbs. "Conserving reptiles within a multiple-use landscape: determining habitat affiliations of reptile communities in the northern jarrah forest of south-western Australia". Australian Journal of Zoology 65, nr 1 (2017): 21. http://dx.doi.org/10.1071/zo16074.
Pełny tekst źródłaRozprawy doktorskie na temat "Reptile populations"
Baxter-Gilbert, James H. "The Long Road Ahead: Understanding Road-related Threats to Reptiles and Testing if Current Mitigation Measures are Effective at Minimizing Impacts". Thesis, Laurentian University of Sudbury, 2014. https://zone.biblio.laurentian.ca/dspace/handle/10219/2137.
Pełny tekst źródłaRodrigues, Murilo Guimarães 1978. "Estimating vital rates with imperfect detection in amphibian and reptile populations = Estimando taxas vitais com detecção imperfeita em populações de anfíbios e répteis". [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316218.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-23T04:29:37Z (GMT). No. of bitstreams: 1 Rodrigues_MuriloGuimaraes_D.pdf: 4926681 bytes, checksum: 057f2c8aa9c7d1baaa30995a12a9c858 (MD5) Previous issue date: 2013
Resumo: A ecologia de populações investiga os fatores que levam a variação das taxas vitais e, consequentemente, no número de indivíduos. Isso inclui testar hipóteses sobre aspectos da história de vida das espécies e entender os fatores que podem modular a dinâmica populacional. No entanto, a obtenção de dados para testar hipóteses pode ser difícil para populações que apresentam probabilidades de detecção < 1, como anfíbios e répteis. A marcação e recaptura é amplamente usada para estimar a detecção e inferir aspectos de dinâmica populacional e testar hipóteses ecológicas. Neste trabalho empregamos a teoria de marcação e recaptura para testar hipóteses relacionadas à ecologia e conservação de populações de anfíbios e répteis. Utilizamos o programa MARK para implementar modelos de populações abertas e fechadas incorporando a probabilidade de detecção dos indivíduos, para obter estimativas de sobrevivência, e outros parâmetros populacionais usando máxima verossimilhança. Organizamos esta tese em quatro capítulos. Iniciamos enfatizando a importância da probabilidade de detecção, além de simular cenários hipotéticos para demonstrar a relação entre esforço de campo, tamanho ótimo amostral e viés amostral. Em seguida comparamos o efeito de duas técnicas de marcação, o corte de artelhos e o implante de microchips, sobre a sobrevivência individual do sapo ferreiro, Hypsiboas faber. No terceiro capítulo estimamos a sobrevivência e o crescimento populacional da jararaca-ilhoa, Bothrops insularis incorporando emigração temporária aos modelos. Além do estudo de taxas vitais e de dinâmica nas populações, a alocação de energia e suas consequências na sobrevivência individual podem ser testadas com modelos de marcação e recaptura. Assim, no quarto e último capítulo consideramos dois caracteres sexuais presentes no sistema de acasalamento dos lagartos, o tamanho da mandíbula e a coloração chamativa, para comparar as estimativas de sobrevivência entre machos e fêmeas do lagarto cauda de chicote, Cnemidophorus cf. ocellifer. . De forma geral, observamos que a probabilidade de detecção individual nos sistemas estudados foi baixa e condizente com a detecção de vertebrados em ambientes tropicais. Além disso, a inclusão de covariáveis na investigação de parâmetros vitais e no processo de detecção é fundamental para o melhor entendimento dos fatores que explicam a dinâmica de uma população. Especificamente observamos que: (i) demonstramos que as taxas que não incorporam a detecção são enviesadas em relação às estimativas que consideram a detecção, (ii) as estimativas de sobrevivência foram similares em indivíduos de Hypsiboas faber marcados com ablação de artelhos e microchips , (iii) Bothrops insularis apresentou baixa probabilidade de sobrevivência anual e crescimento populacional anual negativo. Por fim, (iv) machos maiores do lagarto Cnemidophorus cf. ocellifer apresentaram sobrevivência mensal menor do que machos menores, mas o oposto foi observado para as fêmeas
Abstract: Population ecology aims to search for factors that lead to variation in vital rates and consequently, in the number of individuals. This includes testing hypotheses about natural history traits and threats to populations. However, obtaining data to test hypotheses is challenging because following individuals in the field can be difficult, especially for amphibians and reptiles, where detection probabilities are often < 1. Mark-recapture methods are widely used to estimate detection probabilities and to test ecological hypothesis. Here we used mark-recapture methods to test hypotheses related to ecology and conservation of amphibian and reptile populations. We implemented open- and closed-population models in Program MARK, to account for detection probabilities and to calculate survival estimates and other population parameters. We organized this dissertation into four chapters. In the first chapter we emphasize the importance of considering detection probabilities besides simulating hypothetical scenarios to show the relationship between field effort, sample size and precision. In the second chapter we used a Cormack-Jolly-Seber model to compare the effect of two amphibian marking techniques, toeclipping and PIT tagging, on survival in the blacksmith tree frog, Hypsiboas faber. In the third chapter our goal was to estimate survival and population growth of the golden lancehead, Bothrops insularis accounting for temporary emigration using Pollock's Robust Design. Besides the study of vital rates and population dynamics, energy allocation and its consequences for survival are testable with mark-recapture models. Thus, in the last chapter we used two traits from the lizard mating system, namely jaw size and courtship coloration, to compare survival estimates between males and females of the whiptail lizard, Cnemidophorus cf. ocellifer. In summary we observed that detection probability on the studied populations were low and similar to other vertebrate populations from the tropics. However, including covariates in estimation models of vital rates and detection is important to obtain more accurate results to explain population dynamics. Specifically we conclude that (i) return rates were biased low in relation to survival estimates that account for detectability, (ii) the estimates of survival were similar between toe-clipped and PIT tagged individuals of Hypsiboas faber, (iii) Bothrops insularis showed low survival probability and negative annual population growth. And (iv) larger Cnemidophorus cf. ocellifer males showed lower monthly survival probability than smaller males but the opposite was found for females
Doutorado
Ecologia
Doutor em Ecologia
Lettink, Marieke, i n/a. "Adding to nature : can artificial retreats be used to monitor and restore lizard populations?" University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080715.091040.
Pełny tekst źródłaGuzinski, Jaro, i guzi0002@flinders edu au. "Investigating genetic population substructure of an Australian reptile tick, Bothriocroton hydrosauri, using highly polymorphic microsatellite markers". Flinders University. School of Biological Sciences, 2009. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20090324.125811.
Pełny tekst źródłaBissell, Ahrash N. "Population differences and behavior of lizards : on the road to speciation? /". view abstract or download file of text, 2001. http://wwwlib.umi.com/cr/uoregon/fullcit?p3024506.
Pełny tekst źródłaTypescript. Includes vita and abstract. Includes bibliographical references (leaves 121-147). Also available for download via the World Wide Web; free to University of Oregon users.
Wasiolka, Bernd. "The impact of overgrazing on reptile diversity and population dynamics of Pedioplanis l. lineoocellata in the southern Kalahari". Phd thesis, Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1661/.
Pełny tekst źródłaIn semi-arid savannah ecosystems, the vegetation structure and composition, i.e. the architecture of trees, shrubs, grass tussocks and herbaceous plants, offer a great variety of habitats and niches to sustain animal diversity. In the last decades intensive human land use practises like livestock farming have altered the vegetation in savannah ecosystems worldwide. Extensive grazing leads to a reduction of the perennial and herbaceous vegetation cover, which results in an increased availability of bare soil. Both, the missing competition with perennial grasses and the increase of bare soils favour shrub on open ground and lead to area-wide shrub encroachment. As a consequence of the altered vegetation structure and composition, the structural diversity declines. It has been shown that with decreasing structural diversity animal diversity decline across a variety of taxa. Knowledge on the effects of overgrazing on reptiles, which are an important part of the ecosystem, are missing. Furthermore, the impact of habitat degradation on factors of a species population dynamic and life history, e.g., birth rate, survival rate, predation risk, space requirements or behavioural adaptations are poorly known. Therefore, I investigated the impact of overgrazing on the reptile community in the southern Kalahari. Secondly I analysed population dynamics and the behaviour of the Spotted Sand Lizard, Pedioplanis l. lineoocellata. All four chapters clearly demonstrate that habitat degradation caused by overgrazing had a severe negative impact upon (i) the reptile community as a whole and (ii) on population parameters of Pedioplanis l. lineoocellata. Chapter one showed a significant decline of regional reptile diversity and abundance in degraded habitats. In chapter two I demonstrated that P. lineoocellata moves more frequently, spends more time moving and covers larger distances in degraded than in non-degraded habitats. In addition, home range size of the lizard species increases in degraded habitats as shown by chapter three. Finally, chapter four showed the negative impacts of overgrazing on several population parameters of P. lineoocellata. Absolute population size of adult and juvenile lizards, survival rate and birth rate are significantly lower in degraded habitats. Furthermore, the predation risk was greatly increased in degraded habitats. A combination of a variety of aspects can explain the negative impact of habitat degradation on reptiles. First, reduced prey availability negatively affects survival rate, the birth rate and overall abundance. Second, the loss of perennial plant cover leads to a loss of niches and to a reduction of opportunities to thermoregulate. Furthermore, a loss of cover and is associated with increased predation risk. A major finding of my thesis is that the lizard P. lineoocellata can alter its foraging strategy. Species that are able to adapt and change behaviour, such as P. lineoocellata can effectively buffer against changes in their environment. Furthermore, perennial grass cover can be seen as a crucial ecological component of the vegetation in the semi-arid savannah system of the southern Kalahari. If perennial grass cover is reduced to a certain degree reptile diversity will decline and most other aspects of reptile life history will be negatively influenced. Savannah systems are characterised by a mixture of trees, shrubs and perennial grasses. These three vegetation components determine the composition and structure of the vegetation and accordingly influence the faunal diversity. Trees are viewed as keystone structures and focal points of animal activity for a variety of species. Trees supply animals with shelter, shade and food and act as safe sites, nesting sites, observation posts and foraging sites. Recent research demonstrates a positive influence of shrub patches on animal diversity. Moreover, it would seem that intermediate shrub cover can also sustain viable populations in savannah landscapes as has been demonstrated for small carnivores and rodent species. The influence of perennial grasses on faunal diversity did not receive the same attention as the influence of trees and shrubs. In my thesis I didn’t explicitly measure the direct effects of perennial grasses but my results strongly imply that it has an important role. If the perennial grass cover is significantly depleted my results suggest it will negatively influence reptile diversity and abundance and on several populations parameters of P. lineoocellata. Perennial grass cover is associated with the highest prey abundance, reptile diversity and reptile abundance. It provides reptiles both a refuge from predators and opportunities to optimise thermoregulation. The relevance of each of the three vegetation structural elements is different for each taxa and species. In conclusion, I can all three major vegetation structures in the savannah system are important for faunal diversity.
Ineich, Ivan. "Recherches sur le peuplement et l'évolution des Reptiles terrestres de Polynésie française". Montpellier 2, 1987. http://www.theses.fr/1987MON20238.
Pełny tekst źródłaBell, Kristen E. "Conservation ecology of amphibians and reptiles in Sarapiqui, Costa Rica : forest fragmentation and long term population change". FIU Digital Commons, 2005. http://digitalcommons.fiu.edu/etd/1481.
Pełny tekst źródłaBissell, Kristin Marie. "Modeling habitat ecology and population viability of the Eastern Massasauga Rattlesnake in southwestern lower Michigan". Diss., Connect to online resource - MSU authorized users, 2006.
Znajdź pełny tekst źródłaTitle from PDF t.p. (viewed on Nov. 20, 2008) Includes bibliographical references (p. 118-124). Also issued in print.
Sung, Yik-hei, i 宋亦希. "Impacts of illegal trapping and plantation forestry on herpetofaunal populations". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48199308.
Pełny tekst źródłapublished_or_final_version
Biological Sciences
Doctoral
Doctor of Philosophy
Książki na temat "Reptile populations"
Conservancy, The Nature, i California. Department of Fish and Game, red. Checklist of amphibians and reptiles: Carrizo Plain Natural Area. Bakersfield, Calif.?]: [U.S. Dept. of the Interior, Bureau of Land Management], 1996.
Znajdź pełny tekst źródłaHallock, Lisa A. Herpetofauna inventory of Bureau of Land Management sites in Douglas, Franklin, Grant, Lincoln, Klickitat, Washington, 1998: Summary of work completed in 1998. Spokane, Wash: Bureau of Land Management, Spokane District Office, 1999.
Znajdź pełny tekst źródłaDaigle, Claude. Inventaires de la tortue des bois au Québec: Rapport d'étape, années 1994 et 1995. Québec: Ministère de l'environnement et de la faune, Direction de la faune et des habitats, Service de la faune terrestre, 1996.
Znajdź pełny tekst źródłaMaisonneuve, Charles. Inventaires aériens de sauvagine dans les bassins versants des rivières Boyer et Le Bras, 1992-1995. Québec: Ministère de l'environnement et de la faune, 1998.
Znajdź pełny tekst źródłaShine, Richard. Diets and abundances of aquatic and semi-aquatic reptiles in the Alligator Rivers Region. Canberra: Australian Govt. Pub. Service, 1986.
Znajdź pełny tekst źródłaReptile biodiversity: Standard methods for inventory and monitoring. Berkeley: University of California Press, 2012.
Znajdź pełny tekst źródłaD, Taylor R. Crocodile numbers on Lake Kariba, Zimbabwe and factors influencing them. Causeway, Harare, Zimbabwe: WWF Multispecies Project, 1993.
Znajdź pełny tekst źródłaJames, Janice D. Short-horned lizard (Phrynosoma hernandesi hernandesi) populations in Alberta: 2002 survey results. [Edmonton]: Alberta Sustainable Resource Development, 2003.
Znajdź pełny tekst źródłaJames, Janice D. A survey of short-horned lizard (Phrynosoma hernandesi hernandesi) populations in Alberta. [Edmonton]: Fish & Wildlife Division, Resource Status and Assessment Branch, Alberta Sustainable Resource Development, 2002.
Znajdź pełny tekst źródłaHarmata, Alan R. Nesting success and productivity of key raptor species and preliminary herptile survey, Kevin Rim raptor study area, Toole County, Montana, 2004: Challenge cost share progress report to: Bureau of Land Management, Great Falls District. Bozeman, Mont: Montana State University, Fish & Wildlife Program, Department of Ecology, 2004.
Znajdź pełny tekst źródłaCzęści książek na temat "Reptile populations"
Grant, Bruce W., Anton D. Tucker, Jeffrey E. Lovich, Anthony M. Mills, Philip M. Dixon i J. Whitfield Gibbons. "The Use of Coverboards in Estimating Patterns of Reptile and Amphibian Biodiversity". W Wildlife 2001: Populations, 379–403. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2868-1_31.
Pełny tekst źródłaPeterson, Charles R., i Michael E. Dorcas. "The Use of Automated Data-Acquisition Techniques in Monitoring Amphibian and Reptile Populations". W Wildlife 2001: Populations, 369–78. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2868-1_30.
Pełny tekst źródłaScott, Norman J., i Richard A. Seigel. "The Management of Amphibian and Reptile Populations: Species Priorities and Methodological and Theoretical Constraints". W Wildlife 2001: Populations, 343–68. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2868-1_29.
Pełny tekst źródłaJoger, Ulrich, Uwe Fritz, Daniela Guicking, Svetlana Kalyabina-Hauf, Zoltan T. Nagy i Michael Wink. "Relict Populations and Endemic Clades in Palearctic Reptiles: Evolutionary History and Implications for Conservation". W Relict Species, 119–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-92160-8_6.
Pełny tekst źródła"Global Threats Affecting the Status of Reptile Populations". W Toxicology of Reptiles, 23–48. CRC Press, 2016. http://dx.doi.org/10.1201/9781420038361-6.
Pełny tekst źródłaIrwin, Lisa, i Kelly Irwin. "Global Threats Affecting the Status of Reptile Populations". W New Perspectives: Toxicology and the Environment, 9–34. CRC Press, 2005. http://dx.doi.org/10.1201/9781420038361.ch2.
Pełny tekst źródła"Reptile Ecotoxicology: Studying the Effects of Contaminants on Populations". W Toxicology of Reptiles, 281–312. CRC Press, 2016. http://dx.doi.org/10.1201/9781420038361-14.
Pełny tekst źródłaCase, Ted J. "Reptiles: Ecology". W Island Biogeography in the Sea of Cortés II. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195133462.003.0015.
Pełny tekst źródła"15. Population Size and Demographics". W Reptile Biodiversity, 283–322. University of California Press, 2019. http://dx.doi.org/10.1525/9780520952072-018.
Pełny tekst źródłaThompson, William L., Gary C. White i Charles Gowan. "Amphibians and Reptiles". W Monitoring Vertebrate Populations, 233–60. Elsevier, 1998. http://dx.doi.org/10.1016/b978-012688960-4/50008-3.
Pełny tekst źródłaStreszczenia konferencji na temat "Reptile populations"
STANKEVIČIŪTĖ, Jolanta, Solveiga Marija BARKAUSKAITĖ i Gediminas BRAZAITIS. "DETECTION OF XENOBIOTIC SUBSTANCES IN MUTE SWANS’ (CYGNUS OLOR) BLOOD". W Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.064.
Pełny tekst źródłaYoshida, N., S. Terukina, M. Matsuda, M. Moroi, M. Okuma i N. Aoki. "FIBRINOGENS KYOTO AND TOCHIGI, EACH WITH AN APPARENT ABNORMAL MOL. WT. γ CHAIN, ARE CHARACTERIZED BY REPLACEMENT OF γ ASN-308 BY LYS AND γ ARG-275 BY CYS, RESPECTIVELY". W XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644702.
Pełny tekst źródłaGader, A. M. A., H. Bahakim, S. Malaika i F. A. Jabbar. "HAEMOSTATIC PARAMETERS IN VARIOUS ETHNIC GROUPS IN SAUDI ARABIA". W XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644869.
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