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Relevant bibliographies by topics / Anthropogenic disturbance / Dissertations / Theses

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Dissertations / Theses on the topic 'Anthropogenic disturbance'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Abrahams, Mark. "Wildlife responses to anthropogenic disturbance in Amazonian forests." Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/64005/.

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Legally inhabited indigenous, extractive and sustainable use tropical forest reserves, have been lauded as a solution to the intractable problem of how to assure the welfare and secure livelihoods of the world’s diverse forest-dependent people, whilst conserving the world’s most biodiverse terrestrial ecosystems. This strategy has been critiqued by human rights advocates, who assert that legally inhabited reserves paternalistically restrict the livelihood choices and development aspirations of forest-dwellers, and by conservationists, who argue that sustained human presence and resource extrac

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2

Maletzke, Benjamin Thomas. "Effects of anthropogenic disturbance on landscape ecology of cougars." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Spring2010/b_maletzke_0041410.pdf.

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Martin, Thomas Edward. "Avifauna and anthropogenic forest disturbance in two biodiversity hotspots." Thesis, Lancaster University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.543999.

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4

Miller, Rebecca Jane. "The effects of anthropogenic disturbance upon African penguin colonies." University of Western Cape, 2020. http://hdl.handle.net/11394/7851.

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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol)<br>African penguin (Spheniscus demersus) mainland colonies are a popular tourist attraction in the Western Cape of South Africa. The African penguin population is in decline and the species is listed as endangered on the International Union for the Conservation of Nature (IUCN) Red List. This thesis aimed to investigate the impact of ecotourism upon African penguin colonies by comparing two colonies of differing levels of tourist visitation in the Western Cape in 2017. The high visitation colony is a mainla

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Oliver, Lucie Rebecca. "Mussel assemblages as biomonitors of anthropogenic disturbance in estuarine environments." Thesis, Bangor University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438829.

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Cameron, Laura Jean. "Anthropogenic natures : Wicken Fen and histories of disturbance 1923-1943." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249030.

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7

Pickell, Paul Drew. "Characterizations of boreal anthropogenic disturbance regimes from multi-scalar Earth observations." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55965.

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Anthropogenic disturbance regimes are anticipated to overwhelm Earth’s ecosystems during the Anthropocene. Boreal forests are particularly at risk of significant transition due to human appropriation of renewable and non-renewable resources. Forestry and energy development in the boreal forest have three primary ecological consequences: suppression of historical disturbance regimes such as fire; emergence of novel ecosystems; and the eradication of ecological memory, which maintains ecological integrity. The objective of this dissertation is to improve our understanding of the pattern characte

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Dafforn, Katherine Ann Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "Anthropogenic modification of estuaries: disturbance and artificial structures influence marine invasions." Awarded by:University of New South Wales. Biological, Earth & Environmental Sciences, 2009. http://handle.unsw.edu.au/1959.4/44778.

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Estuarine environments are threatened by the synergistic effects of anthropogenic disturbance and bioinvasion. The construction of artificial structures (such as pilings and pontoons) provides a habitat resource in close proximity to vessel hulls that may be carrying a wide range of non-indigenous fouling species. In addition, the release and accumulation of toxicants from antifouling (AF) paints on vessel hulls creates a chemical disturbance that may reduce the invasion resistance of native communities. This thesis examines how shipping-related disturbances affect sessile communities, and

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9

Sundin, Josefin. "Sex in Murky Waters : Anthropogenic Disturbance of Sexual Selection in Pipefish." Doctoral thesis, Uppsala universitet, Zooekologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-195861.

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Animals experience variation in their environment because of natural changes. However, due to anthropogenic disturbance, the speed and severity of these changes have recently increased. This thesis investigates how reproductive behaviours may be affected by human induced environmental change. In specific, I investigate how visual and chemical changes in the aquatic environment, caused by eutrophication, affect mating systems and sexual selection in fish. Broad-nosed- and straight-nosed pipefish, which both have been studied in detail for a long period, were used as model organisms. These two s

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10

Forbes, Bruce Cameron. "Anthropogenic tundra disturbance and patterns of response in the eastern Canadian Arctic." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41196.

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The literature of disturbance ecology reveals that, under present climatic conditions, non-native plants have little or no role in high arctic tundra revegetation. Rather, it has been suggested that indigenous flora, especially long-lived perennial graminoids, are crucial to recovery. However, few long-term data are available on past impacts within productive sedge-meadows in the High Arctic, and none which consider the non-vascular flora.<br>This thesis combines biogeographical and patch dynamics perspectives to focus on $ geq$21 yr of natural and assisted recovery of vegetation and soils fro

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Fox, Helen Elizabeth. "The role of anthropogenic disturbance in the creation of a socio-ecological landscape." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1008061.

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The aim of this thesis is to examine the role of anthropogenic disturbance in the creation of a socio-ecological landscape. Three key questions were answered: what impact has past anthropogenic disturbance had on present vegetative characteristics; what value did this disturbed landscape have to local people; how did the local peoples' worldviews and eco-cosmologies influence how they perceived, valued and managed their landscape? Research was based in a rural, predominantly amaXhosa village in the Kat River valley, Eastern Cape, South Africa. Four major landscape components characterised the

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Piller, Leanne M. "An intertidal monitoring program for Mobil, Port Stanvac (Sth. Australia) : anthropogenic versus natural disturbance /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SM/09smp6407.pdf.

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13

Sanford, Monte Paul. "Using insect responses to anthropogenic disturbance to improve land management and conservation planning decisions." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3289458.

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Urquiza-Haas, Tania. "Regional-scale ecological responses to natural and anthropogenic disturbance in the Yucatan Peninsula, Mexico." Thesis, University of East Anglia, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433796.

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15

Warwick-Evans, V. C. "Assessing the potential impacts of anthropogenic disturbance on seabirds : a case study from Alderney." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3001637/.

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Seabirds are threatened by multiple anthropogenic pressures in the marine environment. These pressures may be short- or long- term and impacts may be either direct or indirect and affect reproduction or survival. Marine Renewable Energy Installations (MREIs) provide a relevant, and spatially explicit, example of such pressures. However, there is currently very little empirical evidence as to how MREIs will impact seabirds. Studies have shown that potential impacts are likely to be species and device specific, temporary or long term, and both positive and negative. Current approaches to predict

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Persha, Lauren. "Decentralized forest management, anthropogenic disturbance patterns and forest change in the Usambara Mountains, Tanzania." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337272.

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Thesis (Ph.D.)--Indiana University, School of Public Environmental and Affairs, 2008.<br>Title from PDF t.p. (viewed on Jul 28, 2009). Source: Dissertation Abstracts International, Volume: 69-12, Section: B, page: 7386. Adviser: James C. Randolph.

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Breland, Bianca Patricia. "The effects of anthropogenic disturbance on weedy characteristics of the common sunflower, Helianthus annuus." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337077.

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18

Groothedde, Julia. "Mother-pup interaction and the impact of anthropogenic disturbance in wild harbour seals (Phoca vitulina)." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-68157.

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This study investigated the abundance of harbour seals (Phoca vitulina) on inter-tidal sandbanks, mother-pup interactions as well as the impact of anthropogenic disturbance during breeding season. The abundance was a composite picture of harbour seals of different age and sex, and increased gradually towards peaks in June. Although the sandbank water inlet was the longest time emerged, mother-pup pairs and other seals hauled out more abundant on the other sandbanks, probably due to space availability, differences in sandbank structure and distance to human activity. Mothers and their offspring

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Glatzel, Stephan [Verfasser]. "The influence of anthropogenic disturbance on the greenhouse gas exchange of hydromorphic soils / Stephan Glatzel." Aachen : Shaker, 2005. http://d-nb.info/1186589582/34.

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Glatzel, Stephan Nicolaus [Verfasser]. "The influence of anthropogenic disturbance on the greenhouse gas exchange of hydromorphic soils / Stephan Glatzel." Aachen : Shaker, 2005. http://nbn-resolving.de/urn:nbn:de:101:1-2019051909153994750530.

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Menberu, M. W. (Meseret Walle). "Hydrology of peat-dominated headwater catchments:theories and empirical analysis of the impacts of anthropogenic disturbance." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526219370.

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Abstract Peatland drainage affects about half the peatland area in Finland. Drainage changes natural peatland hydrology and affects water quality through effects on peat decomposition, mineralization, and enhanced mobilization. Runoff water from degraded peatlands transports metals and nutrients and impairs downstream water quality. Peatland restoration through drain blocking can reverse or minimize the negative effects and return degraded peatlands to their natural state over time. In this thesis, a before-after-control-impact study was applied at national scale to 44 boreal peatlands represe

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DeLeo, Danielle Marie. "Characterizing the Effects of Anthropogenic Disturbance on Deep-sea Corals of the Gulf of Mexico." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/407865.

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Biology<br>Ph.D.<br>Cold-water corals are an important component of deep-sea ecosystems as they establish structurally complex habitats that support benthic biodiversity. These communities face imminent threats from increasing anthropogenic influences in the deep sea. Following the 2010 Deepwater Horizon blowout, several spill-impacted coral communities were discovered in the deep Gulf of Mexico, and subsequent mesophotic regions, although the exact source and extent of this impact is still under investigation, as is the recovery potential of these organisms. At a minimum, impacted octocorals

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Glisson, Wesley J., Courtney J. Conway, Christopher P. Nadeau, and Kathi L. Borgmann. "Habitat models to predict wetland bird occupancy influenced by scale, anthropogenic disturbance, and imperfect detection." WILEY, 2017. http://hdl.handle.net/10150/625200.

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Understanding species-habitat relationships for endangered species is critical for their conservation. However, many studies have limited value for conservation because they fail to account for habitat associations at multiple spatial scales, anthropogenic variables, and imperfect detection. We addressed these three limitations by developing models for an endangered wetland bird, Yuma Ridgway's rail (Rallus obsoletus yumanensis), that examined how the spatial scale of environmental variables, inclusion of anthropogenic disturbance variables, and accounting for imperfect detection in validation

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Fontana, Giovanni <1978&gt. "Natural patterns and anthropogenic disturbance in north Adriatic marine benthic assemblages: descriptive and methodological studies." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1772/1/Giovanni_Fontana_tesi.pdf.

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Marine soft bottom systems show a high variability across multiple spatial and temporal scales. Both natural and anthropogenic sources of disturbance act together in affecting benthic sedimentary characteristics and species distribution. The description of such spatial variability is required to understand the ecological processes behind them. However, in order to have a better estimate of spatial patterns, methods that take into account the complexity of the sedimentary system are required. This PhD thesis aims to give a significant contribution both in improving the methodological approaches

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Fontana, Giovanni <1978&gt. "Natural patterns and anthropogenic disturbance in north Adriatic marine benthic assemblages: descriptive and methodological studies." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1772/.

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Marine soft bottom systems show a high variability across multiple spatial and temporal scales. Both natural and anthropogenic sources of disturbance act together in affecting benthic sedimentary characteristics and species distribution. The description of such spatial variability is required to understand the ecological processes behind them. However, in order to have a better estimate of spatial patterns, methods that take into account the complexity of the sedimentary system are required. This PhD thesis aims to give a significant contribution both in improving the methodological approaches

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Pereira, Costa Raquel Filomena. "Behavioural flexibility in wild mountain gorillas and implications for its conservation: Anthropogenic impacts on species-specific behaviours." Kyoto University, 2021. http://hdl.handle.net/2433/261605.

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付記する学位プログラム名: 霊長類学・ワイルドライフサイエンス・リーディング大学院<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(理学)<br>甲第22878号<br>理博第4644号<br>新制||理||1668(附属図書館)<br>京都大学大学院理学研究科生物科学専攻<br>(主査)准教授足立幾磨, 准教授 Michael Alan Huffman, 教授高田昌彦<br>学位規則第4条第1項該当

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Pellecchia, Antonella. "Experimental analysis of the effects of extreme events of mechanical disturbance on rocky shore algal and invertebrate assemblages in the Bagnoli-Coroglio post-industrial area and in reference sites in the Gulf of Naples." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17977/.

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Among the various natural and anthropogenic threats to coastal systems, industrial activities and their heritage of local contamination play a key role, especially where new disturbances are superimposed to extant degraded conditions. This may affect the functioning of assemblages, including their ability to recover, in unpredictable ways. Organisms subject to chronic contamination may respond better to a present discrete disturbance compared to organisms from reference areas not affected by the same contamination due to their adaptation to harsh conditions. By contrast, the same organisms may

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Brown, Charles Stewart. "Secondary succession in the high-alpine of Central Otago, New Zealand, 25 years following anthropogenic disturbance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0005/MQ59783.pdf.

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Dwyer, Ross Gordon. "Ecological and anthropogenic constraints on waterbirds of the Forth Estuary : population and behavioural responses to disturbance." Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/117159.

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Disturbance from engineering works is an increasing problem in terrestrial and marine ecosystems throughout the world. Many reported declines in population size, breeding success and body condition have been diagnosed as the result of anthropogenic disturbance, however little is known about the effect of long-term disturbance from large-scale engineering works. Understanding the mechanisms by which animals respond to anthropogenic activities is fundamental to explaining interactions, and resolving potential conflicts between humans and wildlife. This thesis focuses on the factors affecting the

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Hernandez-Arana, Hector Abuid. "Influence of natural and anthropogenic disturbance on the soft bottom macrobenthic community of the Campeche Bank, Mexico." Thesis, University of Plymouth, 2003. http://hdl.handle.net/10026.1/1780.

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The structure of macrobenthic communities was investigated in carbonate and transitional carbonate-terrigenous sediments of the Southern Gulf of Mexico (Campeche Bank). The aim was to assess the influence of natural disturbance represented by winter storms and river runoff and the putative influence of oil-related activities using a regional approach. At a scale of > 100 km community composition of benthic macroinfauna was characterised as distinct assemblages within the carbonate and transitional sedimentary provinces controlled by natural disturbance. The carbonate assemblage was numerous

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Hayden, Heather Lyn. "The Erosion of Coastal Sediment and Regeneration of Rhizophora mangle Following Anthropogenic Disturbance on Turneffe Atoll, Belize." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2365.

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As communities and managers become aware of the long-term impacts of mangrove loss, estimated at 1-2% per year, interest in sediment erosion and mangrove rehabilitation has increased substantially. In this thesis project I 1) examine erosion rates within coastal fringing Rhizophora mangle ecosystems following mangrove clearing and compare these rates to accretion rates in intact mangroves; and 2) investigate the abiotic factors influencing mangrove seedling survival and regeneration of naturally colonizing R. mangle, in historic mangrove habitat after anthropogenic clearing. Differences in ero

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Cloutier, Tammy. "Anthropogenic Impacts and Influence On African Painted Dogs (Lycaon Pictus)." Antioch University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1597420032227308.

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Parrinha, Marta Alcoforado da Gama de Oliveira. "Impacts of human disturbance on the occurrence of canivorous mammals in the Arrabida Natural Park." Master's thesis, ISA, 2020. http://hdl.handle.net/10400.5/21318.

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Mestrado em Gestão e Conservação de Recursos Naturais / Instituto Superior de Agronomia. Universidade de Lisboa<br>The impact of human activities on the environment and biodiversity assumes unprecedented levels. Measuring such impacts can inform about the repercussions these impacts may have on animal species. In the Mediterranean region these impacts are of particular relevance, since most of the ecosystems coevolved with the human presence based on an extensive management, generally compatible with natural assets. However, the intensification of the landscape alterations and changes in the l

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Moulton, Emma. "Quantifying ‘blue carbon’ stocks in seagrass Posidonia australis and the impact of historical anthropogenic disturbance in Western Australia." Thesis, Moulton, Emma (2018) Quantifying ‘blue carbon’ stocks in seagrass Posidonia australis and the impact of historical anthropogenic disturbance in Western Australia. Honours thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/41932/.

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Recent research into coastal ecosystems have highlighted the importance of seagrass meadows in their ability to efficiently capture and store carbon into the sediment, however meadows are in decline. This study aims to identify local organic carbon stocks in the aboveground and belowground biomass of the species Posidonia australis whilst comparing effects of human disturbance. Mangles Bay in Cockburn Sound was chosen as a degraded bay indicated by high human use, such as boating and industrial effluent, while Shoalwater Bay was chosen due to its location in a marine sanctuary. A total of 32 s

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Obati, Gilbert Obwoyere. "An investigation of forest ecosystem health in relation to anthropogenic disturbance in the south-western Mau Forest Reserve, Kenya." kostenfrei, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?idn=985919086.

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Hearn, Andrew James. "Assessing the influence of anthropogenic disturbance on sympatric felids on Borneo with special reference to the Sunda clouded leopard." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:54162a42-213a-46da-a77c-e4d6ea441a4e.

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For decades, Borneo's once extensive and pristine forests have been increasingly exposed to a suite of anthropogenic disturbance and deforestation processes as a result of selective and illegal logging, hunting, droughts, fires and the conversion to plantations, chiefly oil palm. Such disturbance is likely impacting the Sunda clouded leopard, Neofelis diardi, and other threatened, sympatric Bornean felids, yet few studies have attempted to address these issues. In this thesis, I used data from intensive camera trap surveys throughout Sabah, Malaysian Borneo and high-resolution GPS data from ta

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North, Leslie A. "Application and refinement of the karst disturbance index in west-central, Florida." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002147.

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Malone, Nicholas Martin. "The socioecology of the critically endangered Javan gibbon (Hylobates moloch) : assessing the impact of anthropogenic disturbance on primate social systems /." view abstract or download file of text, 2007. http://proquest.umi.com/pqdweb?did=1404340931&sid=2&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Thesis (Ph. D.)--University of Oregon, 2007.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 154-180). Also available for download via the World Wide Web; free to University of Oregon users.

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Isojunno, Saana. "Influence of natural factors and anthropogenic stressors on sperm whale foraging effort and success at high latitudes." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6760.

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Behavioural responses can reveal important fitness trade-offs and ecological traps in evolutionarily novel contexts created by anthropogenic stimuli, and are of increasing conservation concern due to possible links to population-level impacts. This thesis illustrates the use of proxies for energy acquisition and expenditure within multivariate and state-based modelling approaches to quantify the relative time and energetic costs of behavioural disturbance for a deep-diving marine mammal (Physeter macrocephalus) in foraging grounds in Kaikoura Canyon (New Zealand) and near Lofoten Islands (Norw

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Lovseth, John Timothy. "THE PROLOGUE TO MANAGEMENT: THE EFFECTS OF HISTORICAL ANTHROPOGENIC ACTIVITIES ON FOREST ECOSYSTEMS AND CURRENT MANAGEMENT OPPORTUNITIES IN SOUTHWESTERN ILLINOIS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1623.

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Forest disturbance occurs on a wide gradient of selectiveness and creates new growth opportunities for adapted species. Across the spectrum of disturbance, anthropogenic disturbance influences community assembly in the Midwest more than other mechanisms but is its role in shaping and maintaining ecosystems is inadequately considered in most discussions on the historic range of variability (HRV). Forest resiliency is threatened by unprecedented agents of ecosystem change such as invasive species and reduced regeneration potential of native species. Historic anthropogenic disturbance largely res

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Chambers, David L. "Abiotic Factors Underlying Stress Hormone Level Variation Among Larval Amphibians." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/27817.

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Anthropogenic disturbances can alter the abiotic composition of freshwater systems. These compositional changes can act as physiological stressors towards system inhabitants. However, little is known about how these altered abiotic factors influence stress hormones (corticosterone) in larval amphibians. Throughout the following chapters, I examined the effects of several abiotic factors on baseline and stress-induced corticosterone levels in the larvae of four amphibian species: Jefferson salamander (Ambystoma jeffersonianum), spotted salamander (A. maculatum), wood frog (Rana sylvatica), and

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Risberg, Ronja. "Vägtrafikbuller utefter E6 Tanumshede och dess effekt på fågelfaunan." Thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68555.

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Studier har visat att fåglar påverkas av ökade ljudnivåer och ljudfrekvenser (Kociolek et. Al. 2011). Olika fågelarter skiljer sig i känslighet vid störning av ljud. Vissa arter kan anpassa sig och förändra sin kommunikation till den nya ljudsituationen. Andra kan påverkas i sin fortplantning då lätet är en väsentlig del av partnerkommunikationen. Vidare kan vissa fågelarter behöva flytta till ett annat habitat på grund av att de inte kunnat anpassa sig (Gill et. Al. 1999, Helldin 2004). Fågelinventeringar för nybyggnation av motorväg E6 Tanumshede, Norra Bohuslän redovisar antalet fåglar inna

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McKinney, Tracie. "Social and Ecological Impact of Anthropogenic Disturbance on the Sympatric White-faced Capuchin (Cebus capucinus) and Mantled Howler Monkey (Alouatta palliata)." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1267816356.

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Brown, Briana. "Small-scale community structure and trophic ecology of groundfishes in the Stellwagen Bank National Marine sanctuary under two anthropogenic disturbance regimes." Thesis, Boston University, 2012. https://hdl.handle.net/2144/31516.

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Thesis (Ph.D.)--Boston University<br>PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>A combination of overexploitation and destructive fishing practices, such as bottom trawling, have depleted native populations of groundfishes in coastal New England and reduced benthic community diversity. T

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Pajunen, A. (Anu). "Willow-characterised shrub vegetation in tundra and its relation to abiotic, biotic and anthropogenic factors." Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514261138.

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Abstract Deciduous shrubs form the tallest type of vegetation in arctic-alpine areas and are important for ecosystem function. In the southern part of the Eurasian tundra zone, willows (Salix spp.) are the most common species in the shrub layer. In the alpine areas of Northern Fennoscandia, willow shrubs are characteristic to areas between tree line and treeless tundra heaths. Vertical structure and composition of willow-characterized tundra vegetation is affected by a variety of ecological factors including climate and herbivory. In turn, the abundance of the willow canopy affects understory

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Eilert, Annette. "Alternativa metoder till hägn för att minimera viltskador på hybridaspföryngringar." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65518.

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The purpose of the study was to find alternatives to fences by comparing the frequency of damages on different configurations of chemical treated, mechanically protected and untreated hybrid aspen seedlings, planted on agricultural land. The study also explored whether anthropogenic disturbance (proximity to roads and buildings) had any effect on the frequency of seedlings damages. The study was conducted as a quantitative study with field measurements over the course of a year, in two sample plots with hybrid aspen seedlings planted in May 2016 in Vimmerby kommun, Kalmar län. The field data w

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Ferreira, Carla Sofia Borges Pinto da Cruz. "Efeito de acções antropogénicas na dinâmica de comunidades herbáceas e arbustivas, em sistema de montado." Master's thesis, Universidade de Évora, 2002. http://hdl.handle.net/10174/15095.

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O Montado constitui o sistema agro-silvo-pastoril predominante nas regiões Sul de Portugal, sendo a manutenção destas paisagens dependente do uso tradicional do solo. Para o ecossistema de montado, numa área de vegetação herbácea e outra arbustiva, foi estudado durante três anos a resposta de regeneração da vegetação, após corte, com incorporação, deposição e extracção da biomassa vegetal. O objectivo principal deste estudo consistiu na caracterização da dinâmica do agroecossistema montado, quando sujeito às tradicionais práticas de maneio, tendo em vista a conservação da diversidade biológica

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Kerezsy, Adam. "The Distribution, Recruitment and Movement of Fish in Far Western Queensland." Thesis, Griffith University, 2010. http://hdl.handle.net/10072/365885.

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The river systems of far western Queensland, such as the Bulloo in the Bulloo- Bancannia Basin and the Cooper, Diamantina and Georgina in the Lake Eyre Basin, are catchments that have been subjected to minimal anthropogenic disturbance. These rivers are characterised by extreme flow variability by virtue of their geographical locations in the semi-arid and arid areas of central Australia. In general, the fish communities from these areas are poorly known, especially those from the most remote catchments such as the Georgina and its tributaries. The first aim of this study was to more-accuratel

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Chen, Hsiang Ling. "Barrier Effects Of Roads And Traffic On Animal Occurrence, Space Use, And Movements." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/555947.

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Habitat fragmentation and destruction caused by linear infrastructure, including roads, railways, and power line corridors, are recognized as major threats to biodiversity around the world. Roads can act as barriers by impeding animal movement and restricting animal space use. An understanding of factors that influence barrier effects is important to discern the impacts of habitat fragmentation and to develop appropriate mitigation. The barrier effects of roads are driven by several distinct but not mutually exclusive mechanisms that include traffic, edge, and gap avoidance. We used an endange

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Yeshitela, Kumelachew. "Effects of anthropogenic disturbance on the diversity of foliicolous lichens in tropical rainforests of East Africa: Godere (Ethiopia), Budongo (Uganda) and Kakamega (Kenya)." Göttingen Cuvillier, 2008. http://d-nb.info/990754782/04.

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