Cornelis Jan Camphuysen

Cornelis Jan Camphuysen
NIOZ Royal Netherlands Institute for Sea Research | NIOZ · Department of Coastal Systems (COS)

Dr

About

318
Publications
83,976
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Introduction
At-sea work in the Atlantic Ocean concentrates on feeding interactions between seabirds and marine mammals. Studies of foraging ecology and demography of Herring Gull and Lesser Black-backed Gulls breeding on Texel (colony work, colour-ringing and GPS tracking). Studies of marine oil pollution since early 1970s. Secretary of the World Seabird Union, member editorial board ICES Journal of Marine Science.
Additional affiliations
August 1992 - present
NIOZ Royal Netherlands Institute for Sea Research
Position
  • Senior Researcher

Publications

Publications (318)
Article
Full-text available
Upcoming reform of the European Union (EU) Common Fisheries Policy will be the biggest change in European fisheries management for a generation. A central plank of this reform is a proposed ban on discards, to aid the creation of economically and environmentally sustainable fisheries. This, together with a global trend for declining discards, may h...
Article
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Intra-specific differences in foraging behaviour can have fitness consequences, especially during breeding. We combined GPS tracking data from 34 lesser black-backed gulls (Larus fuscus) encompassing 2029 foraging trips with dietary information and morphometric measurements to test the effect of breeding status and sex as well as body size on forag...
Thesis
Full-text available
In this thesis, results are presented of a comparative study of the foraging ecology, breeding biology, foraging distribution, and population dynamics of two sympatric large gulls, the European Herring Gull Larus argentatus (HG) and the Lesser Black-backed Gull Larus fuscus (LBBG), breeding at Texel in the western Wadden Sea. The work aimed at unde...
Article
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Migration strategies differ greatly among and within avian populations. The associated trade-offs and fitness consequences of diverse strategies and how they persist are pertinent questions in migration research. Migration is a costly endeavour, presumably compensated for by better survival conditions in the non-breeding area. One way to assess the...
Article
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Dietary specialization has been described across a wide range of taxa in the animal kingdom. Fitness consequences are, however, not well documented. We examined the reproductive consequences of different dietary specializations in the herring gull Larus argentatus, an omnivorous seabird, using an extensive dataset which includes breeding and dietar...
Article
Demographic rates such as recruitment and survival probability can vary considerably among populations of the same species due to variation in underlying environmental processes. If environmental processes are spatially correlated, nearby populations are expected to have more similar demographic rates than those further apart. Breeding populations...
Technical Report
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This cruise report presents the results obtained during the ship-based seabird and marine mammal surveys conducted between 17 February and 1 March 2022 and must be seen as a preliminary analysis of the data. The cruise was conducted in a similar fashion as cruises during the longer-term research project financed via the Programme “Biodiversity Gas...
Technical Report
Full-text available
The unique biodiversity and the significance as a stop-over, foraging and wintering area of NW Africa’s offshore waters for seabirds originating from both hemispheres in a constantly changing, almost fluid species composition is beyond dispute. This is a compilation of data collected during dedicated, systematic seabirds at sea surveys: research cr...
Article
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In animal ecology, energy expenditure is used for assessing the consequences of different behavioural strategies, life‐history events, or environments. Animals can also influence energy expenditure through instantaneous behavioural responses to their external environment. It is therefore of interest to measure energy expenditure of free‐ranging ani...
Article
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Op 26 mei 2020 werd er in de Kelderhuispolder een territoriaal, gemengd paartje ♂ Geelpoot-meeuw Larus michahellis/♀ Kleine Mantelmeeuw Larus fuscus ontdekt. Het mannetje bleek een subadulte vogel te zijn (5 e kalenderjaar), het wijfje was volledig uitgekleurd en vermoedelijk adult. Ondanks een maandenlange aanwezigheid op een territorium aan de ra...
Article
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We present an integrative statistical approach for estimating the current conditions of marine-bird habitats affected by human activities. We first estimated the influence of multiple human offshore activities on the species of interest using integrative regression techniques. We then used these models to predict the distribution and abundance of t...
Technical Report
Full-text available
Summary • The Grand Tortue Ahmeyim (GTA) gas development project will be conducted in a new African natural gas province, and is estimated to contain >0.4 trillion m 3 of recoverable gas. The entire project is a technological challenge and involves producing vast volumes of gas in very deep water (~2700m depth), and moving that gas or condensate al...
Technical Report
Full-text available
This is the annual report on beached bird survey (BBS) results in The Netherlands winter 2020/21. Significant declines in oil rates were reported in recent decades (especially since ~2005), but several oiled auks were reported in December 2020, particularly at Texel. Nevertheless, measuring over an entire season, consistently low oil rates are foun...
Article
Full-text available
The expanding development of offshore wind farms brings a growing concern about the human impact on seabirds. To assess this impact a better understanding of offshore bird abundance is needed. The aim of this study was to investigate offshore bird abundance in the breeding season and model the effect of temporally predictable environmental variable...
Technical Report
Full-text available
Van Franeker, J.A.; & Camphuysen, C.J. 1984. Report on Fulmarus glacialis expedition II. Jan Mayen, June-August 1983.. Verslagen en Technische Gegevens No.39: 1-34. (Instituut voor Taxonomische Zoölogie, Universiteit van Amsterdam, Amsterdam). https://repository.naturalis.nl/pub/506333. This is an English language report on avifaunal observations m...
Article
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The increase in anthropogenic activities and their potential impact on wildlife requires the establishment of monitoring programs and identification of indicator species. Within marine habitats, marine mammals are often used as ecosystem sentinels, which has led to investigations into their abundance, distribution, and mortality patterns. However,...
Preprint
Full-text available
The expanding development of offshore wind farms brings a growing concern about the human impact on seabirds. To assess this impact a better understanding of offshore bird abundance is needed. The aim of this study was to investigate offshore bird abundance in the breeding season and model the effect of predictable environmental factors. We used a...
Article
1. Non‐frugivorous waterbirds disperse a wide variety of plants by endozoochory, providing longer dispersal distances than other mechanisms. Many waterbirds visit both agricultural and natural landscapes during their daily movements, but potential bird‐mediated dispersal of weed plants within and from agricultural landscapes to other habitats is co...
Article
Full-text available
As environmental conditions fluctuate across years, seasonal migrants must determine where and when to move without comprehensive knowledge of conditions beyond their current location. Animals can address this challenge by following cues in their local environment to vary behaviour in response to current conditions, or by moving based on learned or...
Technical Report
Full-text available
This is the annual report for OSPAR on the beached bird survey (BBS) results in The Netherlands winter 2019/20, including OSPAR area's 8, 9 and 10. Data from Belgian and German colleagues will have to be merged to arrive at the final values for these areas. For the Dutch North Sea region, significant declines in oil rates were reported in recent de...
Article
Full-text available
1 sula 28 (2020) dwarf and giant gull eggs dwarf eggs of herring gulls larus argentatus and lesser black-backed gulls l. fuscus at texel, 2006-2020 C.J. Camphuysen summary-Inspired by the observations of Kees Swennen on the occurrence of dwarf eggs in a particular cohort of Eider ducks during his years of studies on Vlieland, I investigated the occ...
Article
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On beauty and illness, good care and death, an essay on personal experience with cancer
Article
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There is a growing call to restore the natural richness of the North Sea, but it is often unclear what this natural richness actually was. Here we review the demise and the historical ecology of an iconic species, the critically endangered Angelshark Squatina squatina in the southern North Sea, using historical books and catch records of 104 indivi...
Article
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Site fidelity within and outside breeding colonies by individual Herring Gulls
Technical Report
Full-text available
This is the annual update for OSPAR of the beached bird survey (BBS) results in The Netherlands winter 2018/19. The Dutch BBS provides data for OSPAR area’s 8, 9 and 10, but data from Belgian and German colleagues will have to be merged to arrive at the final values for these areas. For the Dutch North Sea region, significant declines in oil rates...
Article
Full-text available
Birds are vectors of dispersal of propagules of plants and other organisms including pathogens, as well as nutrients and contaminants. Thus, through their movements they create functional connectivity between habitat patches. Most studies on connectivity provided by animals to date have focused on movements within similar habitat types. However, so...
Article
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Distribution maps of cetaceans and seabirds at basin and monthly scales are needed for conservation and marine management. These are usually created from standardised and systematic aerial and vessel surveys, with recorded animal densities interpolated across study areas. However, distribution maps at basin and monthly scales have previously not be...
Article
Eutrophication of aquatic ecosystems is a global problem with major ecological and economic impacts. In many lakes and reservoirs, guanotrophication occurs when roosting waterbirds import nutrients (nitrogen and phosphorus) from surrounding terrestrial habitats. To date, nutrient loading by waterbirds has been estimated based on censuses in the abs...
Article
Full-text available
Interactions between landscape and atmosphere result in a dynamic flight habitat which birds may use opportunistically to save energy during flight. However, their ability to utilise these dynamic landscapes and its influence on shaping movement paths is not well understood. We investigate the degree to which gulls utilise fine scale orographic lif...
Article
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Background: Several generalist species benefit from food provided by human activities. Food from anthropogenic sources is often high in caloric value and can positively influence reproductive success or survival. However, this type of resource may require specific foraging skills and habitat experience with related costs and benefits. As a result,...
Article
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Many populations consist of individuals that differ consistently in their foraging behaviour through resource or foraging site selection. Foraging site fidelity has been reported in several seabird species as a common phenomenon. It is considered especially beneficial in spatially and/or temporally predictable environments in which fidelity is thou...
Article
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Under climate warming, migratory birds should align reproduction dates with advancing plant and arthropod phenology. To arrive on the breeding grounds earlier, migrants may speed up spring migration by curtailing the time spent enroute , possibly at the cost of decreased survival rates. Based on a decades-long series of observations along an entire...
Data
Supplementary Information for Fuelling conditions at staging sites can mitigate Arctic warming effects in a migratory bird Eldar Rakhimberdiev*, Sjoerd Duijns, Julia Karagicheva, Cornelis J. Camphuysen, VRS Castricum, Anne Dekinga, Rob Dekker, Anatoly Gavrilov, Job ten Horn, Joop Jukema, Anatoly Saveliev, Mikhail Soloviev, T. Lee Tibbitts, Jan A. v...
Article
Full-text available
Under climate warming, migratory birds should align reproduction dates with advancing plant and arthropod phenology. To arrive on the breeding grounds earlier, migrants may speed up spring migration by curtailing the time spent en route, possibly at the cost of decreased survival rates. Based on a decades-long series of observations along an entire...
Article
Full-text available
We compared the primary molt of the 4 species of skuas and jaegers (Stercorariidae) that breed in the Northern Hemisphere: Long-tailed Jaeger (Stercorarius longicaudus), Parasitic Jaeger (S. parasiticus), Pomarine Jaeger (S. pomarinus), and Great Skua (S. skua). We analyzed primary molt data of 1,573 individuals of multiple age classes, mostly coll...
Article
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Reproductive timing in many taxa plays a key role in determining breeding productivity ¹, and is often sensitive to climatic conditions ² . Current climate change may alter the timing of breeding at different rates across trophic levels, potentially resulting in temporal mismatch between the resource requirements of predators and their prey ³ . Thi...
Article
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After an historical absence, over the last decades Eurasian Spoonbills Platalea leucorodia leucorodia have returned to breed on the barrier islands of the Wadden Sea. The area offers an abundance of predator-free nesting habitat, low degrees of disturbance, and an extensive intertidal feeding area with increasing stocks of brown shrimp Crangon cran...
Book
Full-text available
The annual cycle of Herring Gull breeding in a diary format with explanations of the science behind it and a historical review of the Herring Gull in The Netherlands with emphasis of conservation, destruction and persecution, foraging ecology, behaviour, anthropogenic resourcesand the changing habitat use
Book
Our aim was to produce a book to aid the identification of marine and estuarine fish found in the North Sea. The North Sea is a shallow shelf sea in the northeast Atlantic that was formed as a consequence of sea level rise following the last Glacial Maximum, when seas began to flood the European Continental Shelf, over the past 15,000 years. The No...
Article
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An introduced species' invasion success may be facilitated by the release of natural enemies, like parasites, which may provide an invader with a competitive advantage over native species (enemy release hypothesis). Lower parasite infection levels in introduced versus native populations have been well documented. However, any potential competitive...
Article
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Barr Al Hikman, a large intact coastal wetland in the Sultanate of Oman, is an important wintering site for migratory waterbirds in the Asian-East African Flyway. The last reported systematic survey of the area is from 1990. Here, we present results of three surveys in 2007/2008, 2013/2014 and 2015/2016. Up to half a million waterbirds of 42 specie...
Article
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The harbour porpoise (Phocoena phocoena) is the smallest and most abundant cetacean in NW European continental shelf waters. Their global abundance numbers at least ~700,000 individuals. Within the North Sea, total abundance has recently been estimated at approximately 345,000 animals. The species reproduces at a rate of one offspring every 1-2 yea...
Article
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The aerial environment is heterogeneous in space and time and directly influences the costs of animal flight. Volant animals can reduce these costs by using different flight modes, each with their own benefits and constraints. However, the extent to which animals alter their flight modes in response to environmental conditions has rarely been studi...
Article
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Recent developments in GPS tracking technology allow the movements of bird species to be followed in ever-greater detail. Seabird research is benefiting greatly, due to the challenges of tracking species that often roam widely out at sea. Amongst the gulls, one of the pressing issues is to understand the ecology of the relatively recent urban colon...
Article
Worldwide, marine and coastal ecosystems are heavily invaded by introduced species and the potential role of parasites in the success and impact of marine invasions has been increasingly recognized. In this review, we link recent theoretical developments in invasion ecology with empirical studies from marine ecosystems in order to provide a concept...
Article
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Oil pollution is a serious issue in the Netherlands ever since merchant and military vessels with diesel engines gradually replaced vessels operating sails and steam engines in the early twentieth century. Arguably, the southern North Sea became one of the most heavily oil-polluted sea areas in the world as a result of chronic oil pollution. Major...
Article
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Seabirds are particularly sensitive to marine oil pollution. Systematic surveys of beach-cast corpses of birds ('beached bird surveys') not only document the adverse effects of oil pollution on wild birds but are particularly useful for monitoring spatial and temporal patterns and trends in chronic oil pollution. In this chapter, we briefly review...
Article
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Birds in flight are proposed to adjust their body orientation (heading) and airspeed to wind conditions adaptively according to time and energy constraints. Airspeeds in goal-directed flight are predicted to approach or exceed maximum-range airspeeds, which minimize transport costs (energy expenditure per unit distance) and should increase in headw...
Article
Full-text available
While seabird–fishery associations are well documented, this research primarily comes from ship-based surveys and consequently individual level responses to discard availability are largely unknown. As part of a long-term study on lesser black-backed gulls (Larus fuscus) in the Netherlands, the fine-scale movements of adults were tracked with GPS t...