Exegesis Spatial Data Management

 

Posts in Category: Data analysis

A system for categorizing the rarity and scarcity of Irish invertebrates

Client: National Parks and Wildlife Service

Rare and scarce status of Irish invertebratesExegesis developed a novel approach for consistently determining rarity statuses, distributions and mapping Irish invertebrates.

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Deer Vehicle Collisions in Scotland Analysis

Client: NatureScot

Deer Vehicle Collisions (DVC) analysis in ScotlandExegesis analysed the distribution and scale of Deer Vehicle Collisions in Scotland, covering data from 2008 to 2021.

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Review of occurrence and options for control of Common Cord-grass in Ireland

Client: National Parks and Wildlife Service

Review of occurrence and options for control of Common Cord-grass in IrelandExegesis undertook a review of common cord-grass in Ireland. This covered its impacts on ecosystems, distribution and extent, and a review of control techniques.

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Wales bait digging survey

Client: Natural Resources Wales

Bait diggingExegesis were contracted to establish whether aerial imagery from UAVs could be used to investigate the spatial and temporal extent of bait digging at selected sites in Wales.

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Morfa Friog Coastal Realignment Project saltmarsh vegetation monitoring

Client: Natural Resources Wales

Morfa Friog saltmarsh monitoringExegesis was contracted to establish vegetation monitoring at a saltmarsh coastal realignment site. This required the collection of high resolution aerial imagery, quadrat based vegetation survey, mapping in GIS and production of a detailed report.

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Wood-pasture and parkland data analysis

Client: Natural England

The saproxylic beetle Trypodendron signatum. © Mike Lush, 2016We demonstrated through spatial processing and statistical analysis that it may be possible to predict wood pasture and parkland quality. This project generated a model that could be used to target survey effort to those sites with the highest predicted quality.

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Common cord-grass Spartina anglica and its management in estuarine Natura 2000 sites

Client: Natural England

Spartina anglica in Natura 2000 sitesExegesis were contracted to undertake a review of Spartina anglica in England’s Natura 2000 Sites. This covered its impacts on designated features, effects on accretion and erosion, distribution and extent, and a review of control techniques. A protocol was developed to monitor S. anglica and help identify any negative impact.

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Understanding the impact of invasive non-native species on protected sites

Client: Natural England

Invasive non-native species on protected sitesexeGesIS were contracted to investigate the distribution of non-native species on protected sites in England, to help develop a programme of work to tackle Invasive Non-Native Species. Large scale data analysis was used to determine which protected site each species occurred within. We also reviewed data flow within Natural England.

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Development of Fishing Effort Toolkit

Client: Cefas

Fishing Effort Map - TrawlingexeGesIS SDM undertook two projects for Cefas to create and update a bespoke Fishing Effort Toolkit that allowed end users to process raw GPS tracks and sighting data and undertake a standardised process to calculate fishing effort for one or more years.
 

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Volumetric analysis using a mini-plane DSM

Client: Natural Resources Wales

Volumetric analysis using a mini-plane DSMExegesis undertook an aerial survey of a site and orthorectified and mosaicked the imagery to create a single image. We also generate a digital surface model, which was compared against lidar data to give the change in height. We then determined the volume of additional material within patches identified from the aerial photography.

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