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CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY
- https://onlinelibrary.wiley.com/doi/10.1111/j.1477-9730.1988.tb00607.x
- This paper is based on Hiby. L., Thompson, D. and Ward. A., 1987. Improving census by aerial photography—an inexpensive system based on nonspecialist equipment. Wildlife ... even for lenses of short focal length. Aerial photography of grey seal breeding colonies is used to illustrate these developments. Citing Literature. Volume 12, Issue 71 ...
Census of grey seals by aerial photography | Request PDF
- https://www.researchgate.net/publication/229473088_Census_of_grey_seals_by_aerial_photography
- Request PDF | Census of grey seals by aerial photography | The factors determining resolution in aerial photography of wildlife concentrations are considered and two developments that improve ...
Census of Grey Seals by Aerial Photography - academia.edu
- https://www.academia.edu/56087413/Census_of_Grey_Seals_by_Aerial_Photography
- Census of Grey Seals by Aerial Photography. The Photogrammetric Record, 2006. Dave Thompson. Download Download PDF. Full PDF Package Download Full PDF Package. This Paper. A short summary of this paper. 37 Full PDFs related to …
CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY - DeepDyve
- https://www.deepdyve.com/lp/wiley/census-of-grey-seals-by-aerial-photography-G0uljwc8QS
- CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY Hiby, A. R.; Thompson, D.; Ward, A. J. 1988-04-01 00:00:00 The factors determining resolution in aerial photography of wildlife concentrations are considered and two developments that improve resolution with inexpensive equipment are described. Firstly, a …
CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY
- https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1477-9730.1988.tb00607.x
- CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY. A. R. Hiby. NERC Sea Mammal Research Unit, Cambridge. Search for more papers by this author. D. Thompson. NERC Sea Mammal Research Unit, Cambridge.
CENSUS OF GREY SEALS BY AERIAL PHOTOGRAPHY
- https://www.semanticscholar.org/paper/CENSUS-OF-GREY-SEALS-BY-AERIAL-PHOTOGRAPHY-Hiby-Thompson/9a63ff1a404b0802327fee8f96e29d1e8936d7e8
- The factors determining resolution in aerial photography of wildlife concentrations are considered and two developments that improve resolution with inexpensive equipment are described. Firstly, a rocking camera mount has been constructed that compensates for apparent image motion resulting from forward movement of the aircraft. The mount allows slower shutter speeds to …
2021 Aerial Surveys Monitoring Gray Seal Populations
- https://www.fisheries.noaa.gov/gallery/2021-aerial-surveys-monitoring-gray-seal-populations
- 2021 Aerial Surveys Monitoring Gray Seal Populations. Counting gray seal pups in their nurseries is one way researchers are keeping tabs on this population as it reoccupies historic habitats off New England. A collection of photos from the 2021 Northeast Fisheries Science Center's aerial surveys to monitor the gray seal population off the Northeastern United …
Aerial Surveys Monitor Growing Gray Seal Populations off …
- https://www.fisheries.noaa.gov/feature-story/aerial-surveys-monitor-growing-gray-seal-populations-northeastern-united-states
- Counting gray seal pups in their nurseries is one way researchers are keeping tabs on this population as it reoccupies historic habitats off New England. ... Canada conducted concurrent aerial surveys of gray seal pupping colonies in Canada. Scientists will count the seals in the imagery collected and use the counts to estimate total range-wide ...
Grey seal census - Marine and Freshwater Research Institute
- https://www.hafogvatn.is/en/research/harbour-seal/grey-seal-census
- The number of pups at each site is counted directly by one observer and an assistant observer takes picture of the sites to subsequently count the number of pups from the photographs. An estimate of the total population size is then constructed by applying a correction factor to the number of observed pups. Aerial censuses of grey seals in Iceland have been carried out at …
Aerial Census Of Grey Seal Pups In Iceland In 1982 [PDF] …
- https://www.readbookpage.com/pdf/aerial-census-of-grey-seal-pups-in-iceland-in-1982/
- Aerial census of grey seal ( Halichoerus grypus Fabricus ) pups in Iceland in 1982. ( Translated from Icelandic: Náttúrufraedingurinn 55 ( 2 ) : 83-93 . ) 23 p . 5248 . бр . Olsen , S. 0. 1984 . Quality as business strategy and ... DOWNLOAD NOW » Author: Publisher: ISBN: MINN:31951D00216217G. Category:
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