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Jan van der Winden

Jan van der Winden
Jan van der Winden Ecology

Drs

About

126
Publications
18,838
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621
Citations
Introduction
Currently involved in waterbird research and wetland ecology with a focus on habitat use and migration ecology of Black Tern, Common Tern, Purple Heron, Great Reed warbler and Eurasian Bittern. Experience with (sat) GPS transmitters and light level loggers. Also: habitat restoration studies for marshland birds and waders in wet grasslands, species action plans and impact assessments. Many co-operative studies and capacity building projects on birds in wetlands in West Africa (Benin, Ghana, Sierra Leone, Guinea-Bissau) and Ukraine and Russia.
Additional affiliations
January 2015 - November 2015
independent ecologist
Position
  • Senior ecologist
January 1994 - December 2014
Bureau Waardenburg bv
Position
  • Senior ecologist

Publications

Publications (126)
Article
Full-text available
Since the sixties, the population of Gull-billed Terns in Northwest Europe had declined substantially in numbers and distribution, with only one colony remaining in the German Elbe estuary nowadays. Predator-exclusion fencing led to increased reproduction in this colony. In the Netherlands, Gull-billed Terns bred regularly until around 1958 and the...
Article
Marsh bird populations in the Netherlands seem to have recovered recently, except for the Great Reed Warbler. Numbers in the Netherlands have declined from 5000 territories in the fifties to less than 100 today. Deterioration of water reed is currently the most important factor for this decline, caused by overgrazing by Greylag Geese Anser anser. F...
Technical Report
De Nederlandse Aardolie Maatschappij BV (NAM) heeft van het Rijk toestemming om aardgas te winnen uit zes velden in het Waddenzeegebied: Moddergat, Nes, Lauwersoog C, Lauwersoog West, Lauwersoog Oost en Vierhuizen Oost (verder MLV-gasvelden). De winning is gestart in 2007. De belangrijkste voorwaarde is dat de bodem door de gaswinning niet meer daa...
Article
In many bird species intraspecific variation in migration strategies is related to sex or size. The Eurasian Bittern Botaurus stellaris is a sexually size-dimorphic heron species with a vast breeding and wintering range spanning a range of climates. Ringing data show that Bitterns from northern populations migrate westwards or southwards over thous...
Article
Full-text available
Currently, the deployment of tracking devices is one of the most frequently used approaches to study movement ecology of birds. Recent miniaturisation of light‐level geolocators enabled studying small bird species whose migratory patterns were widely unknown. However, geolocators may reduce vital rates in tagged birds and may bias obtained movement...
Technical Report
De Nederlandse Aardolie Maatschappij BV (NAM) heeft van het Rijk toestemming om aardgas te winnen uit de zes velden Moddergat, Nes, Lauwersoog C, Lauwersoog West, Lauwersoog Oost en Vierhuizen Oost in het Waddenzeegebied (verder MLV-gasvelden). De winning is gestart in 2007. De belangrijkste voorwaarde is dat de bodemdaling door de gaswinning binne...
Article
In 1932 the Zuiderzee, the estuary of the river IJssel, was closed by a dam. This changed the brackish dynamic wetland into one of the largest fresh water lakes in Europe, lake IJsselmeer-Markermeer. Previously dynamic sand islands became vegetated and the fish community changed dramatically. Formerly migratory fish populations were replaced by a r...
Technical Report
De Nederlandse Aardolie Maatschappij BV (NAM) heeft van het Rijk toestemming om aardgas te winnen uit de zes velden Moddergat, Nes, Lauwersoog C, Lauwersoog West, Lauwersoog Oost en Vierhuizen Oost in het Waddenzeegebied. De winning is gestart in 2007. De belangrijkste voorwaarde is dat de bodemdaling door de gaswinning binnen de toegestane gebruik...
Technical Report
Full-text available
In 2017 new islands have been created in the Markermeer. The archipelago attracted many pioneer bird species and numbers and breeding success of Common Tern and Pied Avocet have been recorded. The numbers are of international importance and their reproduction was very high. So at this moment the islands contribute substantially to threatened specie...
Technical Report
Full-text available
Het IJsselmeergebied is internationaal belangrijk voor visetende watervogels. Het leefgebied staat helaas onder druk door de huidige infrastructuur en menselijk gebruik. De visdief is een goede indicator voor de kwaliteit van het gebied. Dit rapport geeft een overzicht van recente trends en het broedsucces van visdieven in het IJsselmeergebied. Het...
Article
Full-text available
Males bring on average more aquatic prey to the chicks, such as fish and beetle larvae, while females bring more terrestrial insects (mostly imago diptera). Males are slightly larger than females with larger bills and therefore probably better specialized in catching fish. The males need more time to find and transport the prey to the chicks. As th...
Technical Report
De Nederlandse Aardoliemaatschappij BV (NAM) wil een productieboring uitvoeren naar het Ternaard gasveld. Dit gasveld ligt op drie kilometer diepte onder de Waddenzee, bij de ge-meente Dongeradeel. Het geproduceerde gas zal naar de bestaande productielocatie bij Mod-dergat worden getransporteerd via een nog aan te leggen pijpleiding. Om de boring,...
Article
The Eurasian Black Tern, Chlidonias niger niger, nests in marshes continuously distributed across Eurasia, but migration routes, staging sites, and nonbreeding distributions are not well understood. In western Europe some populations have declined substantially over several decades (>90%), thus a more complete understanding of breeding site connect...
Article
Scuba divers reveal secrets of Goldeneyes Bucephala clangula wintering in the Veluwerandmeren. In the winters of 2008/09, 2010/11, 2012/13 and 2013/14 Goldeneyes were counted and their foraging behaviour was studied at lakes Veluwemeer and Wolderwijd, the Netherlands (together referred to as the Veluwerandmeren). In addition, prey availability wa...
Article
Full-text available
Paper on the decline of the Eurasian Bittern population in Noord-Holland. Simultaneous counts of booming males showed an overestimation of 30% in years without simultaneous counts as males move to other booming locations. But a genuine decline is also clear. The decline is discussed and recommendations for habitat improvement are presented.
Article
In the winters of 2008/09, 2010/11, 2012/13 and 2013/14 Goldeneyes were counted and their foraging behaviour was studied at lakes Veluwemeer and Wolderwijd, the Netherlands (together referred to as the'Veluwerandmeren'). In addition, prey availability was studied at 10 observed Goldeneye foraging locations divided over the two lakes in the winter o...
Article
Full-text available
Purple Herons have a restricted distribution in the lower parts of the Netherlands (Fig. 1). They breed in marshes and although feeding densities are highest in marsh habitat, the largest numbers feed in agricultural grasslands with high densities of ditches. So far foraging ranges and location of foraging sites have been described on the basis of...
Technical Report
Monitoring van aardgaswinning onder de Waddenzee vanaf de locaties Moddergat, Lauwersoog en Vierhuizen Advies van de AuditCommissie over de resultaten vaHet Rijksprojectbesluit Gaswinning onder de Waddenzee vanaf de locaties Moddergat, Lau-wersoog en Vierhuizen (hierna het Rijksprojectbesluit) geeft de Nederlandse Aardolie Maat-schappij BV (NAM) de...
Article
Full-text available
By 2013, six of 27 Black Terns (Chlidonias niger) from four Dutch colonies that had received light level geolocators in 2010-2011 had been recaptured. All six recovered individuals migrated to West Africa, but whereas one individual flew there nonstop, the others made stops of varying length en route. These included flights of 2,000-6,000 km betwee...
Technical Report
Het Rijksprojectbesluit Gaswinning onder de Waddenzee vanaf de locaties Moddergat, Lauwersoog en Vierhuizen (hierna het Rijksprojectbesluit) geeft de Nederlandse Aardolie Maatschappij BV (NAM) de mogelijkheid om onder randvoorwaarden aardgas te produceren in het Waddenzeegebied uit de zes velden Moddergat, Nes, Lauwersoog C, Lauwersoog West, Lauwer...
Article
Full-text available
Purple Herons have a restricted distribution in the lower parts of the Netherlands (Fig. 1). They breed in marshes and although feeding densities are highest in marsh habitat, the largest numbers feed in agricultural grasslands with high densities of ditches. So far foraging ranges and location of foraging sites have been described on the basis of...
Article
Purperreigers broeden in Nederland aan de noordrand van hun verspreidingsgebied. Ze trekken na de broedtijd in groepen en meestal binnen tien dagen naar Afrika. Op trektelposten worden ze in de ochtend echter nauwelijks wegtrekkend gezien. Omdat er maar op een enkele locatie in de avond werd geteld, ontstond het idee dat de reigers zeer lokaal en g...
Article
Full-text available
Arctic Terns Sterna paradisaea have an exceptionally long-distance migration, annually travelling back and forth between the Arctic and the Antarctic. Birds from Greenland, Iceland and the USA were recently found to spend most of the non-breeding period in the Weddell Sea, a small part of the large Antarctic range of Arctic Terns. Based on ring rec...
Technical Report
Het Rijksprojectbesluit Gaswinning onder de Waddenzee vanaf de locaties Moddergat, Lauwersoog en Vierhuizen (hierna het Rijksprojectbesluit) geeft de Nederlandse Aardolie Maatschappij BV (NAM) de mogelijkheid om onder randvoorwaarden aardgas te produceren in het Waddenzeegebied uit de zes velden Moddergat, Nes, Lauwersoog C, Lauwersoog West, Lauwer...
Article
The Dutch breeding population of the Purple Heron migrates to West Africa during August-September. To date only one migration watchpoint (Ridderkerk, Zuid-Holland) has been known for substantial numbers passing during late afternoon and evening, and this site attracts many birdwatchers in this period. As Purple Herons take off for migration from th...
Article
Full-text available
Birds performing long-distance migration without substantial refuelling en route rely on fat reserves accumulated in the post-breeding, pre-migratory period. In order to fill a knowledge gap in the pre-migratory behaviour of purple herons Ardea purpurea, a species conducting a 3,500–4,000 km migration journey within 5–7 days, 12 adult and four juve...
Chapter
Full-text available
A review of population size developments since 1949 of the Black Tern in the Natura 2000 wetland Nieuwkoopse Plassen. Habitat, behaviour threats and conservation is described.
Article
Full-text available
Large and heavy birds usually use soaring flight during long-distance migration or make regular stopovers en route for substantial refuelling. Purple Herons are large, long-distance migrants. Because of their size, large herons migrating southwards from Europe to Africa were expected to make one or more stop-overs to refuel. However, data from seve...
Article
Black Terns Chlidonias niger have shown a decrease of well over 90% as a breeding bird in The Netherlands during the twentieth century. Two hypotheses have been put forward for this decline: the disappearance of the floating plant Water Soldier Stratiotes aloides, which used to be the favourite nesting substrate of the terns, and a decrease of avai...
Article
Full-text available
Vorig jaar heeft het (toenmalige) ministerie van LNV een nieuwe richtlijn met betrekking tot de uitvoering van de Flora- en faunawet gepubliceerd. De richtlijn getuigt van de behoefte aan een praktischer interpretatie van de verbodsbepalingen. Deze behoefte lijkt vooral door procedurele problemen ingegeven. Ecologische overwegingen spelen geen rol...
Technical Report
Results of a 3 year study on behaviour and movements of 16 Purple herons with satellite transmitters. It provided information on behaviour in the breeding areas, post breeding behaviour and migratory movements and staging sites in the non-breeding period. Above this, many conservation groups could use the project to highlight their efforts.
Technical Report
The habitat and feeding areas of Purple Herons nesting in the Natura 2000 sites Oostelijke Vechtplassen and Naardrmeer have been identified. About 70% of the feeding habitats of these colonies is outside the Natura 2000 protected areas. Mostly in agricultural grasslands.The herons roost in many small tree stands spread over these grasslands. Conser...
Article
Full-text available
Very little is known about the postnuptial ecology of the Purple Heron. In 2007 and 2008 in total 16 Purple Herons (12 adults) received satellite transmitters. During the breeding season these herons used feeding areas at a distance of 1.5-15 km from the breeding colonies. However, after breeding the adults left the colony sites for a permanent sta...
Article
Nocturnal incubating and brooding behavior of the Black Tern (Chlidonias niger) was studied at two colonies in successive years in The Netherlands. In late evening and early morning, nests were checked regularly for female or male nest attendance until or from complete darkness. During daytime females incubated eggs 60% of the time. At night, males...
Article
Full-text available
The most comprehensive survey to date of the wader population of the coast of Sierra Leone was carried out during Jan–Feb 2005. A total of 66,292 waders of 25 species were counted and the total wader population was estimated at 75,000–79,000. With a count of over 42,000, one site, Yawri Bay, accounted for over half the total. Curlew Sandpiper (24,8...
Article
Since the 1970s, the Dutch Common Tern breeding population has been recovering from a serious decline due to organochloride poisoning. The strictly protected bird reserve on Griend in the Dutch Wadden Sea exemplified this, growing to 3300 breeding pairs in 1994. Yet even in this period breeding success on Griend was low and Common Terns often fed t...
Article
Full-text available
Based on empiric data of breeding success and accurate number trends in The Netherlands, a population model for the black tern was constructed. This model is based on Leslie matrices. Reproductive parameters from the four most important landscape types (river landscape, agricultural grasslands, peat marsh and heath land/moors) are used as model inp...
Article
Full-text available
We studied phenology, staging time and refuelling in Broad-billed Sandpipers Limicola falcinellus stopping over during spring migration in the Sivash (Black Sea, Ukraine) in May 1991¿94. In the study area, peak staging numbers of 2000¿2500 individuals occurred in the third week of May. In May 1993, 460 birds were marked with a yellow dye and 126 of...
Article
Full-text available
In spring, large numbers of migrating Broad-billed Sandpipers make a stop-over in the Sivash, a shallow lagoon system in the Crimea, Ukraine, between the Black Sea and the Sea of Azov. Observed fuelling rates are high and, in just a few weeks, the birds can build up sufficient departure mass to reach their breeding grounds in a single non-stop flig...
Article
This paper presents some adaptations to usual primary moult scores in terns. It is proposed to score old ‘arrested’ moult series separately, to facilitate the analysis of moult in the breeding period more effectively. To do this in a comparable manner, it is proposed to record moult scores for active series (after breeding) as A = new first series,...
Article
After a strong decline the size of the population of Black Terns breeding in Germany and the Netherlands remained stable between 1990 and 2003. The number of breeding pairs in Germany fluctuated between 832 and 1002 without any apparent trend. The population in 2003 was c. 870 pairs. The breeding range of Black Terns in Germany is restricted to the...
Article
The strong decline of Black Terns breeding in oligotrophic mires is in some areas attributed to the lack of calcium in the chick period due to absence of fish in acidificated soft waters. The comparable strong decline in the south of The Netherlands was unclear, as abundant acid tolerant fish still occur in most bogs. In the Malpie, an area with ac...
Article
The Dutch Black Tern breeding population decline was more than 90% since 1950. This paper reviews the most important causes for decline in the Netherlands. These are deterioration of nesting substrate, increased human disturbance and related chick starvation as well as bad food availability or quality in many Dutch wetlands and agricultural areas....
Article
The Red-crested Pochard is one of very few bird species with an ambiguous status in The Netherlands: it was at the same time on the Dutch Red List (1986, 1994) of characteristic and threatened bird species, and listed in an overview of introduced species. The reasons for doubting its wild origin are statements in some publications about birds in ca...
Technical Report
Full-text available
Hoewel de kwaliteit van het moeras een beperkende factor is, wordt het belangrijkste foerageergebied in Nederland in de huidige situatie gevormd door het veenweidegebied, waaronder een zeer aanzienlijk deel regulier agrarisch gebied. De kwaliteit van het veenweidegebied als foerageergebied is afgenomen, waarbij de volgende factoren als belangrijkst...
Article
The Dutch Black Tern Chlidonias niger population showed a decrease of more than 90% over the past 50 years. In some landscape types this decline has continued until recently, but Black Terns in other landscapes have shown a recovery. These trends correlate with differences in breeding success. Relatively high breeding success was found in riverine...
Article
Zwarte Sterns zijn het grootste deel van hun leven onderweg langs de kusten van Afrika. De reis voert langs veel landen en daarbij komen ze in contact met mensen. Onderzoek naar Zwarte Sterns in Afrika heeft daarom altijd in het teken gestaan van de interacties tussen mens en vogel. Vooral de vangst van sterns voor consumptie door de lokale bevolki...
Article
Ringing studies on Black Terns in The Netherlands. Site tenacity, dispersal and survival. In Dutch.
Article
Black Terms use specific, mainly upwelling areas in Africa during northern winter. During the past few years special studies were set up to investigate possible threats to Black Terns in Africa and special attention was given to interactions between fishermen and terms and to age and sex differences in geographical distribution. A first impression...
Article
Numbers, biometrics and feeding ecology of two marsh tern species, the Black Tern (Chlidonias niger) and White-winged Tern (C. leucopterus) were studied in the Sivash, Ukraine in July – August 1996 and 1998. In 1998 the Sivash region was counted completely and, including the nearby Molochnyi Liman, an estimated 30,000 to 40,000 Black Terns and 50,0...
Article
Full-text available
Wader species migrating through the Sivash (Ukraine) use hypersaline and brackish lagoons. We studied the use of the two habitat types, and focused on the profitability of Brine Shrimp Artemia salina, prey species in hypersaline lagoons for Dunlins Calidris alpina, Curlew Sandpipers Calidris ferruginea and Broad-billed Sandpipers Limicola falcinell...
Technical Report
In het kader van het onderzoek aan Moerasvogels heeft Alterra met partners een serie van 6 rapporten uitgebracht onder de titel "moerasvogels op peil". Veel moerasvogelpopulaties staan onder druk
Article
So far, Black Terns were known to start primary moult directly after the breeding season in postnuptial moulting areas. However, in Dutch breeding areas adults with active wing moult were observed in the period July-August. Observations referred to sightings of birds with gaps in their wings as well as captures ol Black Terns in active primary moul...
Article
Breeding birds of the peat marshland area in the provinces Noord-Holland and Utrecht in 1967-94 On the border of the provinces Noord-Holland and Utrecht one of the larger Dutch peat bog marshland systems is situated: The Vechtplassen (Fig. 1). Parts of the area are assigned as Special Protection Area under the EU Bird Directive. The area is conside...
Article
De Nederlandse overheid heeft doelstellingen voor toepassing van duurzame energie die vooralsnog vooral moeten worden bereikt door op grote schaal windenergie op te wekken. Nederland heeft ruimtegebrek, dus wordt er voor plaatsing van windturbines (ook) gekeken naar de grote open wateren: IJsselmeer/Markermeer, Waddenzee (Afsluitdijk) en Noordzee....