Hunting tactics of Peregrines and other falcons
Open accessAbstract
De slechtvalk was bijna uitgestorven door giftige residu’s van landbouwchemicaliën, maar de stand heeft zich hersteld. Dekker deed onderzoek naar de invloed van de terugkeer van deze roofvogel op zijn prooisoorten in Nederland en Canada. Hij heeft gegevens verzameld van 44 jaar, in alle seizoenen en in acht verschillende Canadese landschappen, alsmede aan de Friese waddenkust. In totaal zag hij slechtvalken 470 prooien slaan. Daarvan bestond 85 procent uit watervogels. Daarnaast werden er 104 prooien gepakt door drie andere valkensoorten uit deze studie: het smelleken, de giervalk en de prairievalk. Het jachtsucces van trekkende of overwinterende slechtvalken varieerde van zeven tot twaalf procent.
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Male falcons are more motivated to catch smaller prey than females, which obscures differences in their actual ability to catch prey.
“Most problematically, it has been observed that male falcons are more motivated to catch smaller prey than females (Dekker 2009), thereby obscuring any differences in their actual ability to catch them.”
From Sexual size dimorphism, prey morphology and catch success in relation to flight mechanics in the peregrine falcon: a simulation study (2019) · cites this paper as Dekker 2009
There is a marked difference in prey choice between male and female peregrines: males take smaller prey, while females hunt larger birds up to the size of ducks.
“Interestingly, there is a marked difference in the choice of prey between male and female peregrines (Dekker 2009).”
From Sexual size dimorphism, prey morphology and catch success in relation to flight mechanics in the peregrine falcon: a simulation study (2019) · cites this paper as Dekker 2009
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Mills, R., Hildenbrandt, H., Taylor, G. K., & Hemelrijk, C. K. (2018) · PLOS Computational Biology · doi:10.1371/journal.pcbi.1006044 · Cited by 30 · see citing works
“Arguably, for the stoop to evolve as an habitual attack strategy, these risks must be outweighed by certain survival advantages, and stooping has therefore been proposed either to save energy [5], or to enhance catch success [6].”
BackgroundInfluentialMills, R., Taylor, G. K., & Hemelrijk, C. K. (2019) · Journal of Avian Biology · doi:10.1111/jav.01979 · Cited by 13 · see citing works
- Authors
- Dekker, D.
- Affiliations
- Wageningen University & Research (NL)
- Corresponding author
- Dekker, D.
- Publisher
- Wageningen University and Research
- Published
- 2009-01-01
- OpenAlex
- W1570017326
- Cited by
- 11
- References
- 0
- Citations by year
- 2024: 1 · 2023: 1 · 2022: 1 · 2018: 2 · 2017: 1 · 2015: 1 · 2014: 1 · 2012: 2
- Type
- dissertation
- Language
- en
- Open access
- green
- research.wur.nl
- Locations
- Socio-Environmental Systems Modeling (acceptedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Ecology › Avian ecology and behavior
- Physical Sciences › Environmental Science › Ecology › Wildlife Ecology and Conservation
- Physical Sciences › Environmental Science › Ecology › Animal Ecology and Behavior Studies
- Keywords
- Falco peregrinus, hunting tactics, prey selection, waterbirds, prey capture, hunting success, raptors, Merlin, gyrfalcon, prairie falcon, population recovery, Canada
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