Jordan Chetcuti

• Doctor of Ecology
• Researcher at Aarhus University

Farmland birds have declined throughout Europe over recent decades. Many farmland songbirds are associated with linear woody features on field boundaries, such as hedgerows and tree lines. Previous studies have assessed songbird associations with specific hedgerow and tree characteristics, and their landscape context, but large-scale assessments ha...

Debate rages as to whether habitat fragmentation leads to the decline of biodiversity once habitat loss is accounted for. Previous studies have defined fragmentation variously, but research needs to address “fragmentation per se,” which excludes confounding effects of habitat loss. Our study controls for habitat area and employs a mechanistic multi...

Analysis of species’ habitat associations is important for biodiversity conservation and spatial ecology. The original phi coefficient of association is a simple method that gives both positive and negative associations of individual species with habitats. The method originates in assessing the association of plant species with habitats, sampled by...

The remaining population of palila (Loxioides bailleui), which is tied closely to mamane (Sophora chrysophylla) and naio (Myoporum sandwicense) tree species, has been in long-term decline. This decline is caused by black rats (Ratus ratus), malaria, predation, and parasitism of moth species that palila consume, and the destruction of the mamane nai...

New decision-support tools based on Geographic Information Systems (GIS) can aid forest design planning at the landscape scale and help ensure that management decisions and land-use change are targeted where they can provide benefits for both people and biodiversity. This study has applied and assessed spatial planning tools in a recent project to...

PollinERA aims to reverse pollinator population declines and reduce the harmful impacts of pesticides. It addresses the call through four objectives: SO1 filling ecotoxicological data gaps to enable realistic prediction of the source and routes of exposure and impact of pesticides on pollinators and their sensitivity to individual pesticides and mi...

Documenting complex models has long been a problem. Models are currently developed, implemented, and applied before review. Combined this leads to details hidden in the appendices or too little detail in the methods section to be reproducible. Modellers involve reviewers too late in the process. This does not allow them to flag issues, suggesting r...

Aim Human conversion of land leads to habitat loss and fragmentation. The effects of habitat loss are well‐established, but the effects of fragmentation beyond those of habitat loss, “fragmentation per se” (FPS), are intensely debated. One area of debate is how different species might respond to FPS. We will answer whether FPS have more negative ef...

Context Habitat loss has clear negative effects on biodiversity, but whether fragmentation per se (FPS), excluding habitat loss does is debatable. A contribution to this debate may be that many fragmentation studies tend to use landscapes of fragmented focal-habitat and a single vastly different species-poor intervening land cover (the matrix). Ob...

The philosophy of the WIAT programme was that by improving the look and condition of a woodland, people's perceptions of their area would change, and more visitors would visit what were previously neglected or underused woodlands. By increasing access it was suggested that there would be greater community use and sense of satisfaction of their loca...

The objectives of the research project were: • to collate information about the ecology of ash and species which use ash and how they do so; • to assess how British woodlands might change as a result of the loss of ash; • to define a range of management scenarios which might be applied as a result of ash dieback, and to assess how these might affec...

Edge effects of native forest fragmentation have been well studied, but there are few studies of open‐ground habitats fragmented by plantation forests. We measure forestry edge effects on open‐ground breeding birds, following one of Europe's biggest and most controversial land‐use transformations. The ‘Flow Country’ of northern Scotland is one of t...