scholarly journals A longitudinal study of the effects of trees, geese and avian predators on breeding wader meadow birds: the case of the Demmerik polder, the Netherlands

2020 ◽  
Vol 66 (5) ◽  
Author(s):  
Wil L.M. Tamis ◽  
Piet Heemskerk
Keyword(s):  
The Netherlands ◽  
Strong Increase ◽  
Tree Line ◽  
Anser Anser ◽  
Bird Populations ◽  
Avian Predators ◽  
Breeding Populations ◽  
Short Period ◽  
Vanellus Vanellus ◽  
Meadow Birds

Abstract In the Netherlands, breeding populations of wader meadow birds are in sharp decline. One possible cause is that breeding areas are becoming less open because of tall trees and other factors. The effects of tree lines are generally studied by means of transversal studies spanning a short period of time. We report on a longitudinal field study from 1993 to 2010 into the breeding densities of Eurasian Oystercatcher (Haematopus ostralegus), Northern Lapwing (Vanellus vanellus), Black-tailed Godwit (Limosa limosa) and Common Redshank (Tringa totanus) in the Demmerik polder, the Netherlands. One part of this polder, a nature reserve, has an older tree line, while two agricultural parts are divided by a newly developing tree line. As the tree line in the agricultural parts was developing, foraging families of Greylag Goose (Anser anser) showed a strong increase in only one of these parts during the breeding season. During the same period, the density of avian predators also increased in the whole polder. Analysis shows waders avoid trees in both situations: with an existing tree line (a static situation) and with a growing tree line (a dynamic situation). We investigated the possible role of geese and avian predators in explaining the decline in density of breeding wader meadow birds, by systematic comparison of several different models. In these models, the effect of the growing tree line has the greatest impact on breeding meadow birds. Models with geese describe the trends of breeding wader meadow birds better than those including avian predators, but since these two variables, geese and avian predators, are confounded, no definitive conclusion can yet be drawn. Potential explanations of and functional mechanisms behind the strong decline in breeding meadow bird populations in this area are discussed.

scholarly journals Malarial parasites as geographical markers in migratory birds?

2006 ◽  
Vol 2 (2) ◽  
pp. 213-216 ◽  
Author(s):  
Sylvia M Fallon ◽  
Robert C Fleischer ◽  
Gary R Graves
Keyword(s):  
North America ◽  
Migratory Birds ◽  
Wide Distribution ◽  
Specific Information ◽  
Population Movements ◽  
Site Specific ◽  
Dendroica Caerulescens ◽  
Bird Populations ◽  
Breeding Populations ◽  
Wintering Range

We tested the hypothesis that malarial parasites ( Plasmodium and Haemoproteus ) of black-throated blue warblers ( Dendroica caerulescens ) provide sufficient geographical signal to track population movements between the warbler's breeding and wintering habitats in North America. Our results from 1083 warblers sampled across the species' breeding range indicate that parasite lineages are geographically widespread and do not provide site-specific information. The wide distribution of malarial parasites probably reflects postnatal dispersal of their hosts as well as mixing of breeding populations on the wintering range. When compared to geographically structured parasites of sedentary Caribbean songbirds, patterns of malarial infections in black-throated blue warblers suggest that host–malaria dynamics of migratory and sedentary bird populations may be subject to contrasting selection pressures.

Meadow birds in The Netherlands

Wader Study ◽  
2019 ◽  
Vol 126 (1) ◽  
pp. 7-18
Author(s):  
Maja Roodbergen ◽  
Wolf Teunissen
Keyword(s):  
The Netherlands ◽  
Meadow Birds

scholarly journals Lyme borreliosis in the Netherlands: strong increase in GP consultations and hospital admissions in past 10 years

2006 ◽  
Vol 11 (25) ◽  
Author(s):  
A Hofhuis ◽  
J W van der Giessen ◽  
F Borgsteede ◽  
P R Wielinga ◽  
D W Notermans ◽  
...  
Keyword(s):  
Lyme Disease ◽  
The Netherlands ◽  
Lyme Borreliosis ◽  
Hospital Admissions ◽  
Strong Increase

Lyme borreliosis (Lyme disease) is not notifiable in the Netherlands

scholarly journals Monitoring Breeding Bird Populations in Grand Teton National Park

1996 ◽  
Vol 20 ◽  
pp. 35-38
Author(s):  
Martin Cody
Keyword(s):  
National Park ◽  
Information Source ◽  
Monitoring Program ◽  
Bird Species ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Subalpine Fir ◽  
Bird Populations ◽  
Breeding Populations ◽  
Jackson Hole

This report covers year 2 of a three year project, 1995-1997 inclusive, to instigate a permanent program of monitoring landbird species composition and densities in a variety of representative habitats within Grand Teton National Park (GTNP). Habitats range from grassland and sagebrush on the valley floor of Jackson Hole (around 1900 m) through a range of scrub, woodland, and tall foothill forest vegetation types to montane sites of subalpine fir and tundra (ca. 3000 m). The monitoring program is intended to provide data on year-to-year fluctuations in breeding bird species and densities, and document longer-term changes (if any) in the local avifauna of resident and migratory species. The data base will document variability in size of breeding populations among years, local shifts in distribution and abundance over habitat types, and potentially form an information source on which management and conservation decisions might be based.

Turnover in Breeding Bird Populations on Rottnest I. Western Australia

1985 ◽  
Vol 12 (3) ◽  
pp. 467 ◽  
Author(s):  
DA Saunders ◽  
Rebeira CP de
Keyword(s):  
Turnover Rate ◽  
Marine Species ◽  
Breeding Population ◽  
Extinction Rate ◽  
Turnover Rates ◽  
Breeding Bird ◽  
Bird Populations ◽  
Breeding Populations ◽  
The Right ◽  
Do So

The avifauna of Rottnest Island, W.A., has been surveyed four times between 1904 and 1983: by Lawson in 1904, Glauert (1928), Storr between 1953 and 1962, and ourselves between 1981 and 1983. There were three recorded extinctions and 10 immigrations in the 79-year period, but none of the extinctions and only three of the immigrations could be regarded as valid for calculating natural turnover rates. The remainder had been influenced by human activity; therefore the avifauna extinction rate for Rottnest Island was 0, the immigration rate was 0.04% per year for non-marine species of bird and the relative turnover rate for the 79 years was 0.12% per year. These results for Rottnest I. support the view of Abbott (1978, 1980) that for Australian islands, immigrations and extinctions are infrequent and turnover of breeding species is also infrequent. There have been 109 sightings of vagrants recorded for the island between 1905 and 1983; only one of these had individuals present in sufficient numbers during the breeding season to establish a breeding population. The data show that for one Australian island natural extinctions of both passerines and non-passerines are rare. Water does act as a barrier and although birds do cross water and often appear as vagrants, they very rarely do so in sufficient numbers or at the right time to establish breeding populations.

Arbeidsmarktdynamiek in Nederland: 2003-2013

2014 ◽  
Vol 30 (1) ◽  
Author(s):  
Bart Loog ◽  
Wendy Smits ◽  
Robert de Vries
Keyword(s):  
The Netherlands ◽  
Business Cycle ◽  
Educational Attainment ◽  
Labour Market ◽  
Job Mobility ◽  
Seasonal Effects ◽  
Strong Increase ◽  
Market Dynamics ◽  
Job Flows

Labour market dynamics in the Netherlands 2003-2013 Labour market dynamics in the Netherlands 2003-2013 In this article we investigate structural trends in labour market dynamics in the Netherlands over the 2003-2013 period. We consider several measures of labour market dynamics: (1) total reallocation of workers moving into and out of employment, (2) hirings and separations separately, (3) job-to-job flows, and flows to and from non-employment. In addition, we test whether these measures evolved differently for workers with a different level of educational attainment. Our results indicate that, correcting for business cycle and seasonal effects, both hiring and separation significantly increased during the period under consideration. This increase concerns mainly flows into and out of employment. We do not find a structural increase in job-to-job mobility. In particular low and intermediate educated workers seem harmed by the increasing labour market dynamics, facing a relatively strong increase in the probability of becoming unemployed, while the probability of finding a job out of unemployment remained unchanged.

scholarly journals Grassland management for meadow birds in the Netherlands is unfavourable to pollinators

2020 ◽  
Vol 43 ◽  
pp. 52-63 ◽  
Author(s):  
M.F. (Marco) Tanis ◽  
Leon Marshall ◽  
J.C. (Koos) Biesmeijer ◽  
Lisette van Kolfschoten
Keyword(s):  
The Netherlands ◽  
Grassland Management ◽  
Meadow Birds

scholarly journals Changes in migration and wintering patterns of Greylag Geese Anser anser from southernmost Sweden during three decades

Ornis Svecica ◽  
2018 ◽  
Vol 28 (1) ◽  
Author(s):  
Leif Nilsson ◽  
Hakon Kampe-Persson
Keyword(s):  
The Netherlands ◽  
Early Years ◽  
Crop Damage ◽  
Southern Sweden ◽  
Breeding Area ◽  
Anser Anser ◽  
The North ◽  
Greylag Goose ◽  
The Mean ◽  
Greylag Geese

The recent increase of the Greylag Goose Anser anser population has caused complaints about crop damage. In response to this, the Nordic Collegium for Wildlife Research started a neck-banding program to elucidate the migration and movement patterns. During 1984–2009, 2,639 Greylag Geese were marked in a breeding area in SW Scania, southernmost Sweden. Up to and including 2012, 15,296 re-sightings were reported from outside the breeding area (in addition to more than 100 000 from the breeding area). In the early years of the study, the majority of the geese migrated to winter in southernmost Spain, staging in The Netherlands. In later years, hardly any individuals migrated to Spain, the majority staying in The Netherlands with an increasing proportion wintering in southern Sweden. From 1986 to 2017, the mean latitude for re-sightings changed ten degrees to the north. About 13% of the geese changed winter quarters between two consecutive winters. Moreover, the southward migration occurred much later in the autumn and the geese returned to the breeding areas about one month earlier in spring.

Geestige praktijken: Over de vitaliteit van religieuze heelwijzen in Nederland sinds 1850

2005 ◽  
Vol 59 (1) ◽  
pp. 1-20
Author(s):  
Sipco J. Vellenga
Keyword(s):  
The Netherlands ◽  
Faith Healing ◽  
Strong Increase ◽  
Roman Catholicism ◽  
Religious Healing ◽  
Modern Times ◽  
European Culture ◽  
Holy Places ◽  
Market Approach ◽  
Western Esotericism

This article examines the development of the popularity of religious healing in the Netherlands since 1850 and the factors that contribute to its continuation. It focuses upon three traditions: devotional healing in Roman Catholicism, charismatic healing in Pentecostalism and energetic healing in Western Esotericism. Till about 1965, the interest in making a pilgrimage to holy places of healing showed a strong increase, while the number of participants in faith-healing and esoteric healing remained small. Since then, the development has turned completely the opposite way. Starting from a market approach it is related to contextual, institutional and supply factors. It is argued, that religious healing practices are a normal phenomenon in Western European culture with the vitality to survive in modern times.

scholarly journals Gli uccelli del Parco Regionale della Maremma e aree limitrofe (Grosseto, Toscana, Italia)

2019 ◽  
pp. 7-99
Author(s):  
Pietro Giovacchini
Keyword(s):  
Natura 2000 ◽  
Anser Anser ◽  
Charadrius Alexandrinus ◽  
Anas Crecca ◽  
Lanius Collurio ◽  
Vanellus Vanellus ◽  
Gallinago Gallinago ◽  
Conservation Concern ◽  
Caprimulgus Europaeus ◽  
Burhinus Oedicnemus

Il Parco Regionale della Maremma è una area protetta di 8902 ha nel settore costiero centrale della provincia di Grosseto, Toscana meridionale. Gli habitat che rappresentano l’area protetta possono essere così brevemente descritti: foce del fiume Ombrone e zone umide della Palude della Trappola; Monti dell’Uccellina (cima più elevata: Poggio Lecci, 417 m s.l.m.); un ampio comprensorio interno e pianeggiante dove coesistono attività zootecniche e coltivazioni agricole. Lo sviluppo costiero raggiunge i 25 km circa. Sono presenti 6 Siti della Rete Natura 2000 classificati come ZSC − Zona Speciale di Conservazione − secondo la Direttiva “Habitat” 92/43/ CE e/o come ZPS − Zona di Protezione Speciale − secondo la Direttiva “Uccelli” 2009/147/CE. La maggior parte dell’area presenta una scarsa rete viaria e limitati insediamenti umani con copertura boschiva in larga parte dovuta a formazioni vegetali sclerofilliche mediterranee. In questo lavoro viene presentato un elenco commentato degli uccelli noti per l’area protetta a partire dalla sua istituzione avvenuta il 05/06/1975 sino al 31/12/2018. In totale, le specie di Uccelli rilevate sono 295 (62,1% delle specie della Toscana ed il 52,5% delle specie note in Italia), mentre le specie nidificanti certe o probabili in tempi recenti (2008-2018) sono 84. Le specie di interesse comunitario presenti nell’Allegato I della Direttiva “Uccelli” 2009/147/CE sono 88, mentre quelle classificate come SPEC 1-3 “Species of European Conservation Concern” sono 33. L’area, con le zone umide “Bocca d’Ombrone” e “La Trappola” comprese nella Macrozona “Maremma Grossetana”, ricade all’interno della qualifica di sito di importanza internazionale per lo svernamento di Anser anser e Mareca penelope; inoltre è sito di importanza nazionale per Mareca strepera, Anas crecca, Anas acuta, Spatula clypeata, Ardea alba, Platalea leucorodia, Phoenicopterus roseus, Recurvirostra avosetta, Pluvialis apricaria, Calidris alpina, Vanellus vanellus, Gallinago gallinago, Numenius arquata, Tringa erythropus e Tringa totanus. L’area protetta è di importanza per specie nidificanti in Direttiva 2009/147/CE legate agli specchi lacustri costieri e agli spazi marini, ad incolti, pascoli, così come a zone con vegetazione arborea e arbustiva sparsa su affioramenti rocciosi, margini di boschi, ambienti parzialmente allagati ed ai litorali sabbiosi, quali ad esempio, con dati minimi, Pandion haliaetus (1 coppia), Burhinus oedicnemus (7-8 coppie), Charadrius alexandrinus (1 coppia), Caprimulgus europaeus (25 coppie), Coracias garrulus (13-15 coppie), Lanius collurio (1-5 coppie), Lullula arborea (10 coppie) e Anthus campestris (6-7 coppie). Dal 2015 si segnala il consolidamento della nidificazione di Ardea cinerea, rilevandone per la prima volta la riproduzione come garzaia.

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