Browsing Zoology (Theses and Dissertations) by Title
Now showing items 30-49 of 102
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Facing multiple challenges at range margins : influence of climate change, nutrient enrichment and an introduced competitor on the glacial relict, Mysis Salemaai
(Trinity College (Dublin, Ireland). Department of Zoology, 2013)Anthropogenic climate change is arguably the most important threat to global biodiversity, and its effects are expected to escalate. Mechanisms operating at local scales remain poorly understood, likely because of the ... -
Feeding and physiological energetics of the littoral Tellinoidea of Dublin Bay
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2018)The littoral Tellinoids, marine bivalve clams, are an important component of the Dublin Bay ecosystem, comprising a third of benthic macrofaunal biomass and providing a key conduit in the flow of energy through the system. ... -
Functional signatures of model crustaceans in lake littoral zones in response to nutrient status and local habitat
(Trinity College (Dublin, Ireland). Department of Zoology, 2015)Littoral zones of lakes are critical for linking, physically and energetically, terrestrial and aquatic habitats. Disruption of this link through modification of lake riparian habitats can affect the structure and functioning ... -
General mechanisms for non-additivity between multiple stressors at higher temporal and biological scales
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2021)Multiple anthropogenic stressors threaten the diversity, stability and functioning of ecosystems worldwide. The combined effects of these stressors can, however, be surprisingly difficult to predict due to complex interactions ... -
Granivorous passerines across an agricultural gradient in winter : from habitat use to community structure
(Trinity College (Dublin, Ireland). Department of Zoology, 2008)In recent decades, agricultural intensification has had profound adverse effects on farmland biodiversity, especially within the more industrialised regions of Westem Europe. Among the most severely affected groups have ... -
Grey squirrel, Sciurus carolinensis, ecology in managed broadleaved woodland
(Trinity College (Dublin, Ireland). Department of Zoology, 2000)The American grey squirrel (Sciurus carolinensis) has caused many problems to Irish broadleaved forestry since its introduction in 1911. A survey of damage caused by the grey squirrel's habit of stripping bark from broadleaved ... -
The helminth parasites of Irish badgers: An untold story
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2020)The European badger (Meles meles) is a member of the Mustelid Family and Ireland?s largest terrestrial carnivore. Since the identification of badgers as wildlife reservoirs of bovine tuberculosis (bTB), extensive research ... -
Hepatic ascariasis in a mouse model of relative susceptibility
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2020)The parasitic nematode Ascaris lumbricoides infects 800 million people worldwide. The age group most affected by this parasite are children between the ages of 5 and 15 years. The symptoms of ascariasis can be broadly ... -
Home range and habitat use by the endangered grey partridge (Perdix perdix) in the Irish midlands
(Trinity College (Dublin, Ireland). Department of Zoology, 2001)In Ireland, an 86% decline in distribution was recorded for grey partridge (Perdix perdix) between 1968 and 1991 (Sharrock, 1976; Gibbons et al, 1993). By 1995, only two wild populations remained, in Boora, Co. Offaly and ... -
Human pressure as an ecological force across scales and systems
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2023)Historically, climate has been seen as the main driver of global vegetation patterns, but ecological paradigms have recently expanded to acknowledge human activity as a critical determinant of species biogeography. Today, ... -
Identification and evaluation of the captive environmental factors that affect the behaviour of Sulawesi Crested Black Macaques (Macaca Nigra)
(Trinity College (Dublin, Ireland). Department of Zoology, 2002)Observations of eight Sulawesi macaque troops in the UK and Ireland, were used in four main studies that investigated: 1) The influence of season on the behavioural expression and enclosure use of Sulawesi macaques in a ... -
The impact of roadworks on the ranging behaviour of European badgers (Meles meles)
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2018)The European badger (Meles meles), one of Ireland’s most iconic native species, acts as a wildlife reservoir of Mycobacterium bovis, the causative agent of tuberculosis in cattle. Badgers have been implicated in the spread ... -
The important of parasites in the functioning of warming ecosystems
(Trinity College Dublin. School of Natural Sciences. Discipline of Zoology, 2019)Parasites play a critical role in the structure and functioning of ecosystems, contributing to overall ecosystem stability and the provision of ecosystem services. As the global climate changes, it is of considerable ... -
Individual- and community-level responses of littoral macroinvertebrates to lake nutrient enrichment
(Trinity College (Dublin, Ireland). Department of Zoology, 2009)The aim of this study was to investigate the response of littoral macroinvertebrates to nutrient enrichment across 66 Irish lakes representing a broad nutrient gradient. It was hypothesised that an increase in lake trophic ... -
Integrative avian taxonomy and the role of competition in the diversification of passerine birds
(Trinity College (Dublin, Ireland). Department of Zoology, 2014)It is well recognised that the avifauna of Asia are in major need of taxonomic reassessment. The Sulawesi region of Indonesia, renowned for its high levels of avian endemism, has been relatively overlooked by ornithological ... -
Invertebrate-habitat associations in the Littoral and Riparian Ecotone of Lough Carra, Co. Mayo, Ireland
(Trinity College (Dublin, Ireland). Department of Zoology, 2009)The aim of this study was to investigate the relationship between habitat structure in the land lake ecotone and the abundance and community composition of larval and adult macroinvertebrates. This was done extensively ... -
Investigation into the host-parasite relationship of Sphaerularia bombi and its host(s) Bombus spp.
(Trinity College (Dublin, Ireland). Department of Zoology, 2009)This thesis investigated the relationship between a parasitic nematode (Sphaerularia bombi) and its bumble bee host (Bombus spp.). The parasite is contracted by queens during their hibernation in the ground. Infected queens ... -
Investigation into the molecular mechanisms of a host parasite interaction between a bumblebee host and an entomoparasitic nematode
(Trinity College (Dublin, Ireland). Department of Zoology, 2014)Sphaerularia bombi (Phylum Nematode: Order Tylenchida), an entomoparasitic nematode, infects and parasitises bumblebee (Bombus) queens (Phylum Arthropoda: Order Hymenoptera) resulting in dramatic physiological and behavioural ... -
Lake littoral macroinvertebrate biomass and community structure across alkalinity and nutrient gradients
(Trinity College (Dublin, Ireland). Department of Zoology, 2010)The aim of this study was to investigate the effects of alkalinity and nutrients on the biomass of lake littoral macroinvertebrate communities. An initial comparative study of nine lakes determined the effect of alkalinity ... -
Lessons learned from the integration of Strategic Environmental Assessment with transport planning in Athens, Dublin and London
(Trinity College (Dublin, Ireland). Department of Zoology, 2001)Strategic Environmental Assessment (SEA) refers to the identification and evaluation of the positive and negative effects of actions at a higher decision making level than development projects such as programmes, plans and ...