Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"forest fragments"”.
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Behavioural ecology of sympatric lemur species Lemur catta and Eulemur sp. In forest fragments, south-eastern Madagascar
… of Eulemur rufus x E. collaris in Malaza gallery forest of Berenty reserve, in comparison with the natural sympatric population of ring-tailed lemurs and red collared brown lemurs, Eulemur collaris, in Ambatotsirongorongo forest and with allopatric ring-tailed lemurs at Bealoka forest, in order to …
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Lemurs as protectors of the forest: Red-collared brown lemur seed dispersal, forest regeneration, and local livelihoods in the littoral forest fragments of southeastern Madagascar
… socio-economic development. On the other hand, forest protection often restricts the use of natural resources, thus interfering with traditional livelihoods and local economics. These negative effects can lead to antagonistic attitudes towards the protected area, which can undermine conservation …
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Effects of Forest Fragmentation on Central Amazonian Bird Demography
… in cleared and disturbed areas. Regenerating forest facilitates bird dispersal within degraded Amazonian landscapes and may tip the balance in favor of persistence in previously depauperate habitat patches. Despite the potential value of Amazonian second growth, we lack comparisons of …
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Surveying house-infesting ants after 87 years: species identity and economic impact in central Illinois
… I used similar methods to sample three remnant forest fragments in Champaign County. The forest fragments and urban site were all once part of a contiguous forest (known as The Big Grove), allowing me to compare the richness and structure of ant communities among sites that varied in their …
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Using a new monitoring framework for Regional Councils to assess the integrity of prioritised ecosystems in Hawke’s Bay farmland : A thesis submitted in partial fulfilment of the requirements for the Degree of Masters of Applied Science at Lincoln University
… sustainability of biodiversity in small native forest fragments on privately-owned lowland rural land is threatened by agricultural intensification, introduced pests, inadequate fencing, and species-area effects. Biodiversity monitoring of private land plays an essential role in protecting, and …
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The Effect of Area on Resource Competition among Migrant Birds at a Stopover Site
… crowded stopover sites. I predicted that smaller forest fragments would have higher densities of birds, and that birds would compete for food more intensely in smaller fragments. I examined seven forest fragments of varying size (0.69 ha - 5.69 ha) at Savannah National Wildlife refuge in three …
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Leaf litter ant communities in tropical lowland rain forests in Sabah, Malaysia
Large parts of the tropical lowland rain forests of Sabah (Malaysia) were transformed into secondary forests due to heavy logging. Additionally the remaining forest remnants are isolated from each other by large scale oil palm plantations. Biodiversity patterns and responses of the community of …
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Descrição e análise do padrão de nidificação de Leptopogon amaurocephalus Tschudi, 1846 (Aves, Tyrannidae) na Zona da Mata de Minas Gerais
… lower and middle strata of primary and secondary forests and woods. According to the brief descriptions available, its nest is purse shaped, hanging under natural or artificial cover. Since nest shape has been used as an auxiliary character to solve questions concerning relationships at genus and …
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Crop raiding and conflict: Farmers’ perceptions of human-wildlife interactions in Hoima district, Uganda
… has a long-standing issue of crop raiding. Forest fragments in northern Hoima District support chimpanzees and other primates, and are surrounded by a mosaic of farms. During this study crop damage was monitored in farms next to four forest fragments each week for one year (November 2006 to …
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Species Composition and Spatial Ecology of Amazonian Understory Mixed-Species Flocks in a Fragmented Landscape
… are mostly composed of patchworks of small forest fragments, secondary forests and roads. Conservation, however must take species interactions into consideration as they play a pivotal part the maintenance of several biological processes in the tropics. One of the most conspicuous …
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Factors affecting golden-crowned sifaka (Propithecus tattersalli) densities and strategies for their conservation
… "sifaka") which is endemic to fragmented forests across a gradient of dry, moderate, and wet forest types in northeastern Madagascar. I surveyed sifakas across their global range and investigated factors affecting their densities. I explored sifaka diets across different forest types and …
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ECOLOGY AND CONSERVATION OF BUTTERFLIES IN A TRANSFORMED TROPICAL LANDSCAPE
The future of Southeast Asia’s many forest dependent butterflies depends on how we manage populations in the region’s transformed tropical landscapes. Using Singapore as a model system, we show a slowdown in butterfly extinctions in the past 25 years. Our long-term dataset of 281 species showed …
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An experimental analysis of nest predation in eastern deciduous forests
… and frequency of nests, and the fragmentation of forests through alterations of the landscape and forest structure affect nest predation levels. I estimated predation levels using over two thousand natural translocated nests and on artificial nests baited with quail eggs placed in large eastern …
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Selected solo piano works by contemporary Malaysian composers: An analysis
… Chong Lim Ng's A Distant Voice of the Rain Forest (Fragments from "Rimba"...), Adeline Wong's Paces for solo piano and electronics, and Kah Hoe Yii's My Spirit is Dancing!.;These works show that Malaysian composers can be traditional and experimental, national and international at the same …
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Variation in predator communities and anti-predator behaviors of Milne-Edwards' sifakas (Propithecus edwardsi) in southeastern Madagascar
… (Propithecus edwardsi) in the continuous rainforest of Ranomafana National Park, and the forest fragments of Ialatsara Forest Station. I confirmed the presence of potential aerial predators at each site, but the sifakas' confirmed native mammalian predator, fossa (Cryptoprocta ferox), was …
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Padrões atuais de distribuição de aves florestais na região sul do Estado do Espírito Santo, Brasil
… of current distribution patterns of resident forest birds in southern Espírito Santo state. Inasmuch, a qualitative inventory of the avifauna was conducted in diverse forest fragments within the study area. Results were compared with distributional data for the study area, adjacent regions, …
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Local and landscape scale effects of fragmentation on aerial insectivorous bats in the Amazon
Deforestation is the main driver of the biodiversity crisis. Resulting landscapes are left fragmented with isolated remnant forest patches embedded in a human-modified matrix which has the propensity to regenerate into successional forest. The Biological Dynamics of Forest Fragments Project (BDFFP) …
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The impact of edge-effects on aerial insectivorous bat assemblages in the Amazon
… on edge-effects, particularly in tropical forests which suffer the highest rates of deforestation. This study aims to quantify the magnitude and extent of edge effects on Amazonian aerial-insectivorous bats by relying on a suite of theoretical models previously applied to other taxa. …
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