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Relevant bibliographies by topics / Agricultural intensification and Habitat Fragmentation / Dissertations / Theses

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Dissertations / Theses on the topic 'Agricultural intensification and Habitat Fragmentation'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Inclán, Luna Diego Javier. "Landscape dynamics of tachinid parasitoids." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424645.

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Habitat fragmentation and the intensification of agricultural landscapes are among the main drivers affecting parasitoid diversity. Although many empirical and theoretical studies have elucidated the effects of these processes on populations and communities of parasitoids, the majority of the research has been focused on specialized groups of hymenopterans. In this study the highly-diverse group of tachinid parasitoids (Diptera: Tachinidae) was considered as an alternative model system to test the effects of landscape fragmentation and agricultural intensification on the third trophic level.

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2

Fuentes-Montemayor, Elisa. "The value of agri-environment schemes and farm woodland for bats and nocturnal insects." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3445.

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Many bat species in Europe have undergone severe population declines during the last century and one of the driving causes is believed to be the loss of roosting and foraging habitat through agricultural expansion and intensification. Modern agricultural practices have also had strong negative effects on many insect groups, such as moths, which are important components of the diets of many bat species. Agri-environment schemes (AES) have been introduced in many countries as an attempt to counteract the negative effects of intensive agriculture on biodiversity by providing financial incentives

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3

Rus, Adrian. "Movement patterns and spatio-temporal use of patches by a specialist herbivore, the koala, in a fragmented agricultural landscape." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/23657.

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Understanding how animals use their habitat is an important part of ecology because it links an individual’s life history with movement and resource exploitation. Animals have to move in some form or another to satisfy their energetic and reproductive needs, which is essential for fitness and survival. The patchy distribution of resources (i.e. food, shelter, mates) within heterogenous landscapes has a strong influence on animal movement. By analysing movement patterns of individuals, we can get a better understanding of the factors influencing the spatio-temporal use of patches. Habitat fragm

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4

Whu, Alyssa. "Boundary Dynamics Across Habitat Edges: Effects on Beneficial Insect Species Abundance and Richness." Miami University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=miami1346122386.

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5

Lohr, Michael Thomas. "Response of Australian Boobooks (Ninox boobook) to threatening processes across urban, agricultural, and woodland ecosystems." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2019. https://ro.ecu.edu.au/theses/2255.

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The effects of habitat fragmentation on native wildlife can vary depending on the type of land use occurring in the matrix between remaining habitat fragments. I used Australian boobooks (Ninox boobook) in Western Australia to investigate interactions between matrix type and four different potential threatening processes: secondary poisoning by anticoagulant rodenticides (ARs); limitation of juvenile dispersal and impacts on spatial genetic structure; breeding site availability; and infection by the parasite Toxoplasma gondii. I also conducted a literature review on the use and regulation of A

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6

Janin, Agnès. "Évaluer la connectivité en paysage fragmenté : de l'écologie comportementale à la biologie de la conservation." Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00937294.

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Dans les paysages fragmentés, les mouvements entre les patchs d'habitats jouent un rôle primordial dans la persistance des populations en assurant les flux génétiques, la possibilité de recolonisation après extinction locale, la liaison entre différents habitats pour la reproduction ou l'acquisition des ressources, ... Malgré l'importance de ces mouvements, la structure du paysage entre ces patchs (i.e. la matrice) est le plus souvent considérée comme un ensemble homogène de non-habitat d'intérêt mineur et les adaptations comportementales en réponse à la fragmentation du paysage sont rarement

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7

Umetsu, Fabiana. "Efeito do contexto da paisagem em diferentes escalas sobre a distribuição de pequenos mamíferos em cultivos agrícolas e em remanescentes florestais." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-17112010-190713/.

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Este estudo enfocou a importância do contexto de ambientes alterados do entorno para a distribuição de diferentes grupos de espécies de pequenos mamíferos não-voadores em paisagens fragmentadas de Mata Atlântica. Na primeira abordagem (capítulo 2), usando a distribuição de pequenos mamíferos em remanescentes florestais e nos quatro principais habitats alterados de uma paisagem de Mata Atlântica, investigamos (1) como o poder explanatório dos modelos que descrevem a distribuição das espécies em fragmentos florestais varia entre as variáveis da estrutura da paisagem que incorporam ou não a quali

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8

Abdi, Abdulhakim Mohamed. "Investigating habitat association of breeding birds using public domain satellite imagery and land cover data." Master's thesis, 2010. http://hdl.handle.net/10362/6089.

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Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies<br>Twenty-five years after the implementation of the Birds Directive in 1979, Europe‟s farmland bird species and long-distance migrants continue to decrease at an alarming rate. Farmland supports more bird species of conservation concern than any other habitat in Europe. Therefore, it is imperative to understand farmland species‟ relationship with their habitats. Bird conservation requires spatial information; this understanding not only serves as a check on the indi

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9

Bain, GC. "Science to inform habitat restoration for woodland bird communities of the Tasmanian Midlands." Thesis, 2019. https://eprints.utas.edu.au/32535/1/Bain_whole_thesis.pdf.

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Agricultural intensification over the last 50 years has been a major cause of global biodiversity decline and continues to result in habitat loss, fragmentation and degradation. The agriculture sector must increase production to feed a rapidly growing human population but, to be sustainable, must also maintain the ecosystem services provided by the biodiversity on which it relies. Just how to achieve this is the current focus of much scientific debate. What is clear, is that the world’s current estate of protected areas is no longer sufficient to conserve healthy wildlife populations. Ecologic

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10

Richard, Yvan. "Demography and distribution of the North Island robin (Petroica longipes) in a fragmented agricultural landscape of New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Doctorate of Philosophy in Ecology at Massey University, Palmerston North, New Zealand." 2007. http://hdl.handle.net/10179/1596.

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Habitat loss and fragmentation are recognised worldwide as contributing to declines and extinctions of species. However, the biological factors underlying the effects of fragmentation are still often poorly understood, possibly due to the diversity of scales and approaches taken by researchers. I propose in this thesis an integrative approach that can be applied to any taxa and landscape, using a metapopulation of North Island robins (Petroica longipes) inhabiting forest patches of a fragmented agricultural landscape of New Zealand. In particular, I attempt to integrate the effects of habitat

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11

KALINOVÁ, Karolína. "Vliv intenzity hospodaření a biotopové struktury na ptačí společenstva v zemědělské krajině." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-375306.

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The thesis presents data from bird monitoring, carried out in agricultural landscape in borderland of Southern Moravia (Czech republic) and Lower Austria (Austria). Relations among habitats and bird species richness and abundance are studied and data from both countries compared.

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12

Koemle, Dieter. "The impact of agri-environmental policy and infrastructure on wildlife and land prices." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E538-E.

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13

Krauß, Jochen. "Auswirkungen von Habitatfragmentierung und Landschaftsstruktur auf Tagfalter und Blütenpflanzen." Doctoral thesis, 2003. http://hdl.handle.net/11858/00-1735-0000-0006-AB59-5.

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14

Holzschuh, Andrea Alexandra Violetta. "Bees and wasps in agricultural landscapes: effects of dispersal corridors and land-use intensity at multiple spatial scales." Doctoral thesis, 2006. http://hdl.handle.net/11858/00-1735-0000-0006-AB7D-4.

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15

Hänke, Sebastian. "Local and landscape management effects on syrphid fly guilds: flower strips, farming practice and hedges." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000E-0102-F.

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Während der letzten Jahrzehnte hat sich die Landwirtschaft grundlegend verändert und wird heute zunehmend von hocheffektiven, wirtschaftlich optimierten Produktionssystemen mit ausgedehnten Anbauflächen und dem damit verbundenen gesteigertem Einsatz von Kunstdüngern und Pestiziden geprägt. Diese Entwicklung bedingt jedoch auch den Verlust und die Fragmentierung von naturnahen Habitaten mit negativen Auswirkungen auf die Artenvielfalt in intensiv genutzten landwirtschaftlichen Gebieten. Der Rückgang der Artenvielfalt führt zur Schwächung von Ökosystemfunktionen wie der biologischen Schädlingsko

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16

Vortkamp, Irina. "Biological conservation: mathematical models from an ecological and socio-economic systems perspective." Doctoral thesis, 2021. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-202110015459.

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Conservation in the EU and all over the world aims at reducing biodiversity loss which has become a great issue in the last decades. However, despite existing efforts, Earth is assumed to face a sixth mass extinction. One major challenge for conservation is to reconcile the targets with conflicting interests, e.g. for food production in intensively used agricultural landscapes. Agriculture is an example of a coupled human-environment system that is approached in this thesis with the help of mathematical models from two directions. Firstly, the ecological subsystem is considered to find proce

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17

Maas, Bea. "Birds, bats and arthropods in tropical agroforestry landscapes: Functional diversity, multitrophic interactions and crop yield." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E77-5.

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18

Meyer, Birgit. "Pollinator communities and plant-pollinator interactions in fragmented calcareous grasslands." Doctoral thesis, 2007. http://hdl.handle.net/11858/00-1735-0000-0006-B001-4.

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