Log in

Relevant bibliographies by topics / Microhabitat / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Microhabitat.

Dissertations / Theses on the topic 'Microhabitat'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Microhabitat.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Lopes, Thais Sasso. "Padrões espaciais e temporais de ocorrência de anuros em riachos de Mata Atlântica e sua detecção por meio de DNA ambiental." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-20102016-142913/.

Full text

Abstract:

O Brasil apresenta uma das maiores diversidade de espécies de anfíbios, sendo reconhecidas em torno de 500 espécies endêmicas no país, as quais são encontradas predominantemente em área de Mata Atlântica. O monitoramento da herpetofauna e conhecimento da dinâmica espacial e temporal destas espécies são informações básicas, porém, fundamentais ao desenvolvimento de outras áreas de pesquisa e conservação. Neste trabalho reunimos informações sobre ocorrência e abundância de três espécies típicas de riacho, Cycloramphus boraceiensis, Hylodes asper e Hylodes phyllodes e testamos o uso de DNA ambien

APA, Harvard, Vancouver, ISO, and other styles

2

Garland, Lincoln. "Microhabitat ecology of small mammals on grassy road verges." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Turvey, Shannon Lee. "The role of microhabitat associations in producing cross-taxa congruence." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32496.

Full text

Abstract:

Ecological interactions between taxa and environmental factors influencing the distribution of multiple taxa are both thought to generate spatial concordance, or congruence, in diversity. Observational studies have generally failed to find evidence for strong cross-taxa congruence across sites, and examples of experimental studies testing for congruence as a result of an underlying ecological mechanism are largely lacking. Here I present the results of an experimental study employing downed wood additions in a BACI design to test for an association of small mammals, carabid beetles, plan

APA, Harvard, Vancouver, ISO, and other styles

4

Zimmerman, Brian J. "Microhabitat Use by the Redside Dace (Clinostomus Elongatus) in Ohio." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1250772332.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Homan, Cassandra M. "Bottlenecks and Microhabitat Preference in Invasive Wall Lizard, Podarcis muralis." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1377868885.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Mabray, Scott T. "Microhabitat Selection by Greater Sage-Grouse Hens in Southern Wyoming." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4160.

Full text

Abstract:

Greater sage-grouse (Centrocercus urophasianus) populations have declined throughout the western United States over the past 3 decades. Habitat loss within the sagebrush steppe ecosystem is a major factor leading to sage-grouse population decline. Hen sage-grouse were captured, marked, and tracked during the summer of 2012 in southwestern and south-central Wyoming. I performed vegetation surveys, and avian point counts were performed at 1 early-season brood location, 1 late-season brood location, and an accompanying random location for each marked hen regardless of reproductive status. Multino

APA, Harvard, Vancouver, ISO, and other styles

7

Anderson, Jason J. "Microhabitat Use by the Meadow Vole, Microtus Pennsylvanicus (Ord), on a Reclaimed Grassland." Youngstown State University / OhioLINK, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=ysu999188325.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Hubert, Jay Bradley. "INTERSPECIFIC COMPETITION AND MICROHABITAT SELECTION IN THE GOLDEN MOUSE (OCHROTOMYS NUTTALLI)." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/668.

Full text

Abstract:

The golden mouse (Ochrotomys nuttalli), a state-threatened species in Illinois, is sympatric throughout most of its geographic range with the ubiquitous white-footed mouse (Peromyscus leucopus). The degree of interspecific competitive interaction between these species has been investigated by previous researchers, with often conflicting results. I live trapped and marked both species on two grids from 21 May 2008 through 8 May 2009. One grid was the control area; from the second grid I removed white-footed mice. Habitat on the grids was very similar for six measured habitat variables. My

APA, Harvard, Vancouver, ISO, and other styles

9

Sailer, Gabriele. "The roles of local disturbance history and microhabitat parameters for stream biota." Diss., [S.l.] : [s.n.], 2005. http://edoc.ub.uni-muenchen.de/archive/00004500.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Dennis, Paul Gareth. "How do rhizosphere bacteria interact with their environment at the microhabitat scale?" Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444697/.

Full text

Abstract:

The rhizosphere supports greater bacterial densities than root-free soil. Rhizosphere bacteria (RB) can affect plant health and nutrition however, attempts to manipulate introduced and/or indigenous communities to benefit plants are unreliable. Current evidence indicates that habitat factors strongly influence bacterial communities. In the rhizosphere many processes give rise to a high degree of habitat heterogeneity therefore, to understand how RB interact with their environment their ecology should be studied at the micro-spatial-scale. The objectives of this research were to develop a metho

APA, Harvard, Vancouver, ISO, and other styles

11

Farallo, Vincent R. "Notes from the Underground: Linking Microhabitat and Species Distributions of Plethodontid Salamanders." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou148156741016879.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Moen, Daniel S., and John J. Wiens. "Microhabitat and Climatic Niche Change Explain Patterns of Diversification among Frog Families." UNIV CHICAGO PRESS, 2017. http://hdl.handle.net/10150/624675.

Full text

Abstract:

A major goal of ecology and evolutionary biology is to explain patterns of species richness among clades. Differences in rates of net diversification (speciation minus extinction over time) may often explain these patterns, but the factors that drive variation in diversification rates remain uncertain. Three important candidates are climatic niche position (e.g., whether clades are primarily temperate or tropical), rates of climatic niche change among species within clades, and microhabitat (e.g., aquatic, terrestrial, arboreal). The first two factors have been tested separately in several stu

APA, Harvard, Vancouver, ISO, and other styles

13

Lawson, Callum Robert. "From microhabitat to metapopulations : a model system for conservation under climate change." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/9557.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Gomez, Patricia A. "Microhabitat preference of the introduced gecko Hemidactylus turcicus in an urban environment." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Schwenke, Andrew C. "Riparian vegetation condition influences movement and microhabitat use by Mixophyes fasciolatus in South East Queensland." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/102339/4/Andrew_Schwenke_Thesis.pdf.

Full text

Abstract:

Riparian vegetation has been impacted by urbanisation in many parts of Australia, resulting in population declines of numerous species of stream-associated frogs. This study was the first to investigate movement and microhabitat use of the stream-associated frog, Mixophyes fasciolatus, in sites that differed in the ecological condition of riparian vegetation in south-east Queensland. Twenty-nine frogs were tracked over a 48-hour period and their fine-scale movements and microhabitat use were examined and found to be related to riparian vegetation condition. These results have significant impli

APA, Harvard, Vancouver, ISO, and other styles

16

Jeske, Jan Torsten. "Microbial adaptations and controlling mechanisms of surface-associated microhabitat heterogeneity in aquatic systems." Doctoral thesis, Uppsala universitet, Limnologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-263206.

Full text

Abstract:

Habitat heterogeneity is a driving factor for speciation and ecosystem functioning and is well studied in macro-ecology. Yet our understanding of microbial adaptations, and governing processes is incomplete. The here presented thesis aims at giving us a better understanding of patterns in micro-heterogeneity, and microbial adaptations to such heterogeneity with particular focus on surface-dominated, aquatic habitats. The most prominent microbial adaptation to surface associated mode of life is biofilm formation. Biofilms rely heavily on type IV pili. These pili systems are well studied in Bact

APA, Harvard, Vancouver, ISO, and other styles

17

Jarvis, Laurence Edward. "Microhabitat requirements of the great crested newt (Triturus cristatus) in a woodland area." Thesis, Open University, 2012. http://oro.open.ac.uk/54828/.

Full text

Abstract:

The great crested newt Triturus cristatus is one of Europe's fastest declining amphibian species. This thesis aimed to increase our knowledge of the microhabitat use and ecology of great crested newts within a woodland area in the British Isles and suggest ways of improving measures for conservation. The study was conducted at Epping Forest Field Centre and surrounding deciduous woodland at High Beach, Epping Forest, which is situated to the north-east of London. Capture-mark-recapture of adults in four ponds over 5 years within a 1 km area revealed that great crested newts exhibited large flu

APA, Harvard, Vancouver, ISO, and other styles

18

Wiley, Mark Joseph. "Usable Space and Microhabitat Characteristics for Bobwhites on Private Lands in Southwestern Ohio." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345548162.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

De, Angelo Jacquelyn Alexis. "Mangrove Shoreline Fish Assemblages of Oleta River State Park: Baseline Conditions in an Urban System." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_theses/75.

Full text

Abstract:

Oleta River State Park (ORSP), located in North Miami-Dade County is known as the most highly urbanized State Park in all of Florida. The present study was conducted as part of an ongoing seasonally-resolved survey of fish utilization of the mangrove shorelines of Biscayne Bay. Previous Unit Management Plans published by the Division of Recreation and Parks have lacked information concerning the park?s prominent mangrove forests along with its icthyofauna. The main purpose of this thesis was to provide a baseline characterization of the mangrove-fish assemblages and microhabitat trends of O

APA, Harvard, Vancouver, ISO, and other styles

20

Firmino, da Silva Clebson. "Mixobiota de floresta atlântica: espécies ocorrentes em Elaeis Guineensis Jacq. (Arecaceae)." Universidade Federal de Pernambuco, 2006. https://repositorio.ufpe.br/handle/123456789/1995.

Full text

Abstract:

Made available in DSpace on 2014-06-12T15:53:43Z (GMT). No. of bitstreams: 2 arquivo5238_1.pdf: 459864 bytes, checksum: df7c790bb8a9e7b224fd9cb0a10b359d (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2006<br>Realizou-se um estudo sobre as espécies de Myxomycetes que ocorrem em Elaeis guineensis Jacq. (dendezeiro), visando contribuir para o conhecimento sobre os representantes deste grupo que estão associados com palmeiras no Brasil. A incidência, abundância, diversidade taxonômica (espécie/gênero) dos esporocarpos em estipes, folhas,

APA, Harvard, Vancouver, ISO, and other styles

21

Machado, Renata Figueira. "USO DO HABITAT POR PEQUENOS MAMÍFEROS EM UM MOSAICO DE FLORESTA - CAMPO NO EXTREMO SUL DA FLORESTA ATLÂNTICA." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/5319.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The macro and microhabitat use by small-mammal was investigated in an Atlantic Forest- Pampa mosaic. A grid with 88 traps was used, being 27 installed in the understory every two traps placed on the ground, which were 70 m apart of each other. The fieldwork was carried out in 17 monthly phases, during five days, from June 2011 to October 2012, totalizing a sampling effort of 7480 trap-nights. An analysis of variance was used to verify differences in richness, total abundance and abundance of each species among grassland, edges and

APA, Harvard, Vancouver, ISO, and other styles

22

Mikaelyan, Aram [Verfasser], and Andreas [Akademischer Betreuer] Brune. "Microhabitat-specificity of the hindgut microbiota in higher termites / Aram Mikaelyan. Betreuer: Andreas Brune." Marburg : Philipps-Universität Marburg, 2014. http://d-nb.info/1052995004/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Bates, Colin Robert. "Macroalgae as microhabitat : seaweed traits and wave action as predictors of invertebrate epifaunal diversity." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31214.

Full text

Abstract:

In many coastal environments, anthropogenic stressors yield changes in seaweed biodiversity. Here, I describe three studies addressing how such floristic changes might affect provision of habitat by seaweeds for small mobile invertebrate epifauna. In chapter 2, I used observational and manipulative (transplant) experiments to test how changes in seaweed biodiversity influenced biodiversity of associated invertebrates. I found that invertebrate epifaunal richness and abundance were not affected by changes in seaweed biodiversity. Invertebrate assemblage structure was, in most cases, not influen

APA, Harvard, Vancouver, ISO, and other styles

24

Villeneuve, Valérie. "Algues benthiques du haut Arctique canadien, microhabitat et évaluation des facteurs de contrôle chimiques." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0017/MQ53987.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Boyce, Sean. "Microhabitat selection and characterization of the Woolly Beech Scale, «Cryptococcus fagisuga», in Southern Quebec." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40686.

Full text

Abstract:

Beech bark disease is a widespread and fatal disease of the American beech, (Fagus grandifolia Ehrh.), initiated by an infestation by the woolly beech scale insect, (Cryptococcus fagisuga Lind.). This infestation is characterized by spatial patterns in the number of beech scale colonies within trees by both aspect and height. I studied these patterns by monitoring differences in microhabitat quality within trees over four months (June-September) at two forests in Montreal, Canada. Spatial patterns in bark temperature, bark resistance to puncture, moisture content, and roughness were compared t

APA, Harvard, Vancouver, ISO, and other styles

26

Sakai, Osamu. "Personality of a clonal gecko Lepidodactylus lugubris: developmental mechanism and relation to microhabitat use." Kyoto University, 2019. http://hdl.handle.net/2433/242641.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Nishi, Hirotaka. "Divergence of Euhadra land snails associated with differentiation in microhabitat, shell morphology and behavior." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136804.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Debortoli, Jully Anne. "Preferência de monogenéticos por microhabitat branquial em jundiá Rhamdia quelen sob condições de laboratório." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/handle/123456789/107329.

Full text

Abstract:

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Aquicultura, Florianópolis, 2013.<br>Made available in DSpace on 2013-12-05T23:49:42Z (GMT). No. of bitstreams: 1 321480.pdf: 474485 bytes, checksum: 740a5ce5064047e1a848613752299430 (MD5) Previous issue date: 2013

APA, Harvard, Vancouver, ISO, and other styles

29

Hunter, Anne Katherine. "Longitudinal Patterns of Community Structure for Stream Fishes in a Virginia Tailwater." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31656.

Full text

Abstract:

I examined the abundance, composition, and distribution of 34 fishes within the first 24 km below Philpott Dam on the Smith River, a hydropeaking system in Virginia. Fish were sampled at 12 sites over 8 time periods ranging from 2000 to 2002 across April, June, and October. I evaluated spatial and temporal change in fish community characteristics. Species demonstrated persistent trends in abundance, diversity, and composition throughout the duration of the study. Fish abundance and diversity generally increased with increasing distance from the dam. Fish composition changed minimally acro

APA, Harvard, Vancouver, ISO, and other styles

30

Nitta, Carlos Hiroshi. "Uso de hábitat por tatus em área de floresta de restinga do sul do Brasil." Universidade do Vale do Rio dos Sinos, 2008. http://www.repositorio.jesuita.org.br/handle/UNISINOS/3128.

Full text

Abstract:

Submitted by Maicon Juliano Schmidt (maicons) on 2015-03-24T19:11:22Z No. of bitstreams: 1 Carlos Hiroshi Nitta.pdf: 684742 bytes, checksum: 0857f27947f3270ae0fa6aba1e59c2da (MD5)<br>Made available in DSpace on 2015-03-24T19:11:22Z (GMT). No. of bitstreams: 1 Carlos Hiroshi Nitta.pdf: 684742 bytes, checksum: 0857f27947f3270ae0fa6aba1e59c2da (MD5) Previous issue date: 2008-01-31<br>Nenhuma<br>Os tatus (Cingulata: Dasypodidae), apesar da diversidade de espécies, 21 espécies, e ampla distribuição, da Argentina até a metade sul dos EUA, passando pela América Central, as informações sobre a u

APA, Harvard, Vancouver, ISO, and other styles

31

Larrieu, Laurent. "Les dendro-microhabitats : facteurs clés de leur occurrence dans les peuplements forestiers, impact de la gestion et relations avec la biodiversité taxonomique." Thesis, Toulouse, INPT, 2014. http://www.theses.fr/2014INPT0130/document.

Full text

Abstract:

Les microhabitats portés par les arbres (dendro‐microhabitats), comme les cavités, sont nombreux dans les forêts naturelles. Une revue de la littérature a révélé qu'ils sont des ressources d'habitat évolutives, temporaires, et déterminantes pour la bio‐complexité des écosystèmes forestiers. Leur étude est cependant récente et les connaissances sont par conséquent fragmentaires. En forêt exploitée, les dendro‐microhabitats sont des objets sylvicoles simples et bien catégorisés, souvent comme des défauts de l'arbre dévaluant sa valeur commerciale. Comment concilier alors le maintien d'objets éco

APA, Harvard, Vancouver, ISO, and other styles

32

Melo, Lilian Sayuri Ouchi de [UNESP]. "A similaridade no uso do microhabitat por girinos (Amphibia, Anura) reflete processos ecológicos ou filogenéticos?" Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/110980.

Full text

Abstract:

Made available in DSpace on 2014-12-02T11:16:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-02-28Bitstream added on 2014-12-02T11:21:33Z : No. of bitstreams: 1 000799449_20170401.pdf: 530406 bytes, checksum: 597f2a8d374369c3ec53767284a7fd25 (MD5) Bitstreams deleted on 2017-04-03T16:48:48Z: 000799449_20170401.pdf,. Added 1 bitstream(s) on 2017-04-03T16:49:27Z : No. of bitstreams: 1 000799449.pdf: 2022440 bytes, checksum: 61bf7f3ec81de445521cb6b8518efe4a (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Supe

APA, Harvard, Vancouver, ISO, and other styles

33

Van, Overdijk Colin D. A. "Microhabitat selection by the amphipods Echinogammarus ischnus and Gammarus fasciatus in laboratory and field experiments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0033/MQ62296.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Melo, Lilian Sayuri Ouchi de. "A similaridade no uso do microhabitat por girinos (Amphibia, Anura) reflete processos ecológicos ou filogenéticos? /." São José do Rio Preto, 2014. http://hdl.handle.net/11449/110980.

Full text

Abstract:

Orientador: Denise de Cerqueira Rossa-Feres<br>Banca: Ricardo Janinni Sawaya<br>Banca: Fabrício Barreto Teresa<br>Resumo: Inúmeros processos tem sido sugeridos para explicar a estruturação de comunidades, como por exemplo competição, predação, dispersão, deriva continental, filtragem ambiental, especiação. A compreensão da influência desses processos em escala local é capaz de possibilitar uma melhor compreensão dos determinantes da composição e riqueza de espécies em comunidades, especialmente as bem delimitadas fisicamente, como é o caso das comunidades de girinos. Nosso objetivo neste estud

APA, Harvard, Vancouver, ISO, and other styles

35

Rocha, Clarisse Rezende. "Utilização de microhabitat por três espécies de roedores cricetídeos em um cerrado do Brasil central." reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/3397.

Full text

Abstract:

Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Ecologia, Programa de Pós-Graduação em Ecologia, 2007.<br>Submitted by Fernanda Weschenfelder (nandaweschenfelder@gmail.com) on 2009-11-26T15:04:09Z No. of bitstreams: 1 2007_ClarisseRezendeRocha.PDF: 1573350 bytes, checksum: de4b9ef998b233632ebe78772c8a5aa9 (MD5)<br>Approved for entry into archive by Carolina Campos(carolinacamposmaia@gmail.com) on 2010-01-22T18:14:21Z (GMT) No. of bitstreams: 1 2007_ClarisseRezendeRocha.PDF: 1573350 bytes, checksum: de4b9ef998b233632ebe78772c8a5aa9 (MD5)<br

APA, Harvard, Vancouver, ISO, and other styles

36

Viljoen, Jan-Adriaan. "Distribution of leaf dissection and sclerophylly along microhabitat gradients in pteridophytes of the Cape peninsula." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/25976.

Full text

Abstract:

Plant species with small leaves and sclerophylls have been reported to occur mainly on dry, low-nutrient soils in situations of high insolation. However; a number of physiological functions have been proposed for the two sets of traits. Ferns are well-suited to the study of leaf structure and its impact in different environments, as they show remarkable variation in leaf dissectedness and sclerophylly, and are able to inhabit a variety of marginal habitats. In this study, ecological and leaf trait data were collected for 17 fern species occurring in Skeleton Gorge, Table Mountain, in the Weste

APA, Harvard, Vancouver, ISO, and other styles

37

Jacob, Suellen A. "Effects of microhabitat and temporal factors on foraging behavior of white-footed mice (Peromyscus leucopus)." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337888535.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Boley, Ryan Michael. "Relative species abundance and microhabitat preferences of larval Scaphirhynchus sturgeon in the middle Mississippi River." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/195.

Full text

Abstract:

The pallid sturgeon (Scaphirhynchus albus) and shovelnose sturgeon (S. platorynchus) are benthic freshwater fishes that are sympatric throughout the range of the pallid sturgeon. Pallid sturgeon was listed as endangered under the Endangered Species Act in 1990, while shovelnose is common throughout the range. Previous abundance studies estimate the ratio of adult pallid to shovelnose sturgeon to be on the order of 1:82 in the middle Mississippi River, respectively. Despite adult abundances, reproduction and/or recruitment of pallid sturgeon larvae is undocumented in the middle Mississippi Rive

APA, Harvard, Vancouver, ISO, and other styles

39

Tolimieri, Nicholas. "Effects of microhabitat characteristics and spatial scale on recruitment and adult abundance in Caribbean reef fishes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq30297.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Virillo, Carolina Bernucci. "Influência do microhabitat e da densidade e distância de vizinhos na demografia de populações espécies arbóreas." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315004.

Full text

Abstract:

Orientador: Flavio Antonio Maes dos Santos<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-16T20:45:37Z (GMT). No. of bitstreams: 1 Virillo_CarolinaBernucci_D.pdf: 2082404 bytes, checksum: 73a7c246ad5ac8eccbc8fcf39ee5364b (MD5) Previous issue date: 2010<br>Resumo: Os mecanismos responsáveis pela alta diversidade de espécies arbóreas em florestas tropicais têm sido alvo de intenso debate na literatura, e dentre os inúmeros mecanismos propostos, dois deles têm encontrado relativo suporte empírico: a dependência de densidade

APA, Harvard, Vancouver, ISO, and other styles

41

Farquhar, Michael Robert. "Interspecific interactions of the sea urchin Parechinus angulosus and the effect of variations in microhabitat availability." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1005406.

Full text

Abstract:

Intertidal populations of the sea urchin Parechinus angulosus were examined at seven sites along the south and east coasts of South Africa. At the five southerly sites, P. angulosus occurred in allopatry, while, at the two northerly sites, it occurred in sympatry with several species of Indopacific sea urchins. At the five southerly sites, there was a significant correlation of number of sea urchins per pool with the surface area of the overhang in that pool. This relationship broke down for P. angulosus at the two northerly sites, where there was a significant correlation between these two fa

APA, Harvard, Vancouver, ISO, and other styles

42

Mergo, John Carl. "Studies on the life history, development, occurrence, and microhabitat of Microcotyle spinicirrus, (Monogenea: Microcotylidae) Maccallum 1819 /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487588939090221.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Cross, Amy Suzanne. "MICROHABITAT USE BY GOLDEN MICE (OCHROTOMYS NUTTALLI) AND WHITE-FOOTED MICE (PEROMYSCUS LEUCOPUS) IN SOUTHERN ILLINOIS." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1094.

Full text

Abstract:

Similarities between golden mice (Ochrotomys nuttalli) and white-footed mice (Peromyscus leucopus) have been well-studied in both field and laboratory settings. Often sympatric, these species share similar habitat, as well as other resources, yet previous researchers have found little evidence for interspecific competition. Niche partitioning may reduce direct competition through specialization of resource use. Although the golden mouse is considered a resource specialist, it is likely that the degree of habitat specialization differs by locality, and thus, the degree of interspecific compet

APA, Harvard, Vancouver, ISO, and other styles

44

Silva, Adilson de Oliveira. "Análise comparativa dos nichos espacial e alimentar de anuros em áreas de Caatinga e Mata Atlântica de Sergipe, Brasil." Universidade Federal de Sergipe, 2014. https://ri.ufs.br/handle/riufs/4404.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Distinct environmental characteristics can directly affect community structure, they offer varying conditions and resources, which allows each area to establish different groups of species. In this study we analyzed two amphibian assemblages between October 2012 and September 2013 in two areas with different degrees of environmental heterogeneity, one in the Caatinga (Monument Natural Grota do Angico - MNGA ) and the other in the Atlantic Rainforest (Refugio de Vida Silvestre Mata do Junco - RVSMJ), both in the state of Sergipe. We

APA, Harvard, Vancouver, ISO, and other styles

45

Ortiz, Durà Jesús. "Response of the benthic macroinvertebrate community to a point source in La Tordera stream (Catalonia, NE Spain)." Doctoral thesis, Universitat de Girona, 2005. http://hdl.handle.net/10803/7901.

Full text

Abstract:

Vam monitoritzar paràmetres físics i químics, macroinvertebrats bentònics, clorofil·la a, productors primaris i matèria orgànica durant un any (2001-2002) per examinar els efectes d'una font puntual sobre la composició taxonòmica, la estructura de la comunitat, l'organització funcional, la utilització de l'habitat i la estoquiometria al riu la Tordera (Catalunya).<br/>Aigües avall de la font puntual, concentració de nutrients, cabal i conductivitat eren majors que al tram d'aigües amunt, mentre que oxigen dissolt era menor. La densitat de macroinvertebrats era més elevada al tram d'aigües aval

APA, Harvard, Vancouver, ISO, and other styles

46

Cunha, Fernanda Cascaes Gonçalves e. "Ecologia de Tropidurus torquatus (Wied, 1820) (Squamata, Tropiduridae) no Costão de Itacoatiara, Parque Estadual da Serra da Tiririca, municípios de Niterói e Maricá, RJ." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3659.

Full text

Abstract:

O lagarto Tropidurus torquatus (Wied, 1820) possui ampla distribuição geográfica e é encontrado em abundância nas áreas onde ocorre, sendo considerada uma espécie apropriada para estudos ecológicos. No presente estudo nós analisamos o período de atividade, o uso do microhabitat, a intensidade de forrageamento, a dieta e a ecologia térmica de uma população de T. torquatus do Costão de Itacoatiara, no Parque Estadual da Serra da Tiririca, situado nos municípios de Niterói e Maricá, RJ. Os dados foram coletados em dois períodos: entre julho de 2004 e janeiro de 2008 para estudo do período de ativ

APA, Harvard, Vancouver, ISO, and other styles

47

Ditterich, Franziska [Verfasser], and Ellen [Akademischer Betreuer] Kandeler. "Microbial community structure and function is shaped by microhabitat characteristics in soil / Franziska Ditterich ; Betreuer: Ellen Kandeler." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2016. http://d-nb.info/1118571665/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Landry-Cuerrier, Manuelle. "From habitat to energetics : eastern chipmunk burrow microhabitat selection and fine-scale variation in winter torpor expression." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112530.

Full text

Abstract:

This thesis evaluates, in free-ranging eastern chipmunks (Tamias striatus), burrow site selection, the effect of burrow microhabitat on individual behaviour and winter torpor expression, as well as resource and climate determinants of fine-scale variation in winter torpor expression and energetics. This was accomplished by characterizing burrow microhabitat, performing behavioural observations, and monitoring winter torpor expression. Among several burrow microhabitat variables related to food availability, predation risk, and hibernacula microclimate, availability of woody debris was the best

APA, Harvard, Vancouver, ISO, and other styles

49

Guerra, Giraldez Mabel. "Alteración en la elección de microhabitat de Acyrtosiphon pisum (Hemiptera: Aphididae) parasitado por Aphidius ervi (Hymenoptera: Braconidae)." Tesis, Universidad de Chile, 2000. http://www.repositorio.uchile.cl/handle/2250/106673.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Duchemin, Gérald. "Ecologie des foraminifères benthiques du Golfe du Morbihan et de la Grande Vasière : variabilité temporelle et microhabitat." Angers, 2004. http://www.theses.fr/2004ANGE0014.

Full text

Abstract:

Cette thèse sur l'écologie des foraminifères benthiques présente deux volets, l'un sur un schorre du Golfe du Morbihan, et l'autre sur le plateau continental du Golfe de Gascogne (dans le cadre du PNEC Golfe de Gascogne). L'objectif de cette thèse est, dans les deux environnements, d'éclaircir le comportement des foraminifères vis-à-vis des variations environnementales. Dans le schorre du Golfe du Morbihan, nos observations indiquent que les faunes de foraminifères présentent une forte variabilité à court terme (semaine) et une succession bien établie de microhabitats sur les 9 premiers centim

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!