Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Loss of functional connectivity in migration networks induces population decline in migratory birds
Xu, Yanjie ; Si, Yali ; Wang, Yingying ; Zhang, Yong ; Prins, Herbert H.T. ; Cao, Lei ; Boer, Willem F. de - \ 2019
Ecological Applications 29 (2019)7. - ISSN 1051-0761 - p. e01960 - e01960.
bird migration - habitat loss - life history - network robustness - population dynamics - species traits - wetland

Migratory birds rely on a habitat network along their migration routes by temporarily occupying stopover sites between breeding and non-breeding grounds. Removal or degradation of stopover sites in a network might impede movement and thereby reduce migration success and survival. The extent to which the breakdown of migration networks, due to changes in land use, impacts the population sizes of migratory birds is poorly understood. We measured the functional connectivity of migration networks of waterfowl species that migrate over the East Asian-Australasian Flyway from 1992 to 2015. We analysed the relationship between changes in non-breeding population sizes and changes in functional connectivity, while taking into account other commonly considered species traits, using a phylogenetic linear mixed model. We found that population sizes significantly declined with a reduction in the functional connectivity of migration networks; no other variables were important. We conclude that the current decrease in functional connectivity, due to habitat loss and degradation in migration networks, can negatively and crucially impact population sizes of migratory birds. Our findings provide new insights into the underlying mechanisms that affect population trends of migratory birds under environmental changes. Establishment of international agreements leading to the creation of systematic conservation networks associated with migratory species' distributions and stopover sites may safeguard migratory bird populations.

Data from: Assessing bottom-trawling impacts based on the longevity of benthic invertebrates
Hiddink, Jan Geert ; Jennings, Simon ; Sciberras, Marija ; Bolam, Stefan G. ; Cambiè, Giulia ; Mcconnaughey, Robert A. ; Mazor, Tessa ; Hilborn, Ray ; Collie, Jeremy S. ; Pitcher, C.R. ; Parma, Ana M. ; Suuronen, Petri ; Kaiser, Michel J. ; Rijnsdorp, A.D. - \ 2018
fisheries management - bottom trawl - benthic invertebrates - impact assessment - meta-analysis - systematic review - life history - seabed disturbance
Bottom trawling is the most widespread human activity directly affecting seabed habitats. Assessment and effective management of the effects of bottom trawling at the scale of fisheries requires an understanding of differences in sensitivity of biota to trawling. Responses to disturbance are expected to depend on the intrinsic rate of increase of populations (r), which is expected to be linearly related to the reciprocal of longevity. 2. We examine the relationship between the longevity of benthic invertebrates and their response to bottom trawling; both in terms of the immediate mortality following a trawl pass and their subsequent rates of recovery. We collate all available data from experimental and comparative trawling studies, and test how longevity influences these aspects of sensitivity. 3. The shortest-lived organisms (<1yr) increased in abundance shortly after experimental trawling, but showed no response to trawling in longer-term comparative studies. Conversely, the abundance of biota with a life-span >1yr decreased by ~9% immediately following a trawl pass. The effect of bottom trawling in comparative studies increased with longevity, with a 2-3× larger effect on biota living >10yr than on biota living 1-3yr. We attribute this difference to the slower recovery rates of the longer-lived biota. 4. The observed relationship between the intrinsic rate of population increase (r, our metric of recovery rate) and the reciprocal of longevity matches theoretical expectation and predicts that the sensitivity of habitats to bottom trawling is higher in habitats with higher proportions of long-lived organisms. 5. Synthesis and Applications. Where the longevity of a species or the longevity distribution of a community is known or can be inferred, our estimates of depletion and intrinsic rate of increase can be combined with high-resolution maps of trawling intensity to assess trawling impacts at the scale of the fishery or other defined unit of assessment. Our estimates of r may also be used to estimate recovery times following other forms of seabed disturbance.
Ecdysteroid hormones link the juvenile environment to alternative adult life histories in a seasonal insect
Oostra, V. ; Mateus, A.R.A. ; Burg, K.R.L. van den; Piessens, T. ; Eijk, M. van; Brakefield, P.M. ; Beldade, P. ; Zwaan, B.J. - \ 2014
development - endocrinology - evolution - life history - aging - phenotypic plasticity - physiology - seasonal adaptation - ecdysone
Four datasets from: Ecdysteroid hormones link the juvenile environment to alternative adult life histories in a seasonal insect; by Oostra, Vicencio; Mateus, Ana Rita A.; Van der Burg, Karin R.L.; Piessens,Thomas; Van Eijk, Marleen; Brakefield, Paul M.; Beldade, Patrícia; Zwaan, Bas; as published in American Naturalist 2014. This ZIP archive contains four csv data files: 1) experiment1.csv; 2) experiment2_dataset1.csv; 3) experiment2_dataset2.csv; 4) experiment2_dataset3.csv. See readme.txt for details.
Dans met mij : een vierkante kilometer in Dreischor
Alterra - Centrum Landschap, ; Loo, S. van der; Zaken, D. van der - \ 2014
films - wijnbouw - cultuur - landbouwbedrijven - plattelandsbevolking - landgebruik - mensen - menselijk gedrag - platteland - boeren - zeeuwse eilanden - levensgeschiedenis - viticulture - culture - farms - rural population - land use - people - human behaviour - rural areas - farmers - life history
De film gaat over één willekeurige vierkante kilometer in Dreischor, waar de makers ruim een jaar hebben gefilmd en de verhalen van een aantal mensen hebben gevolgd. De documentaire is onderdeel van een groter project onder de titel 'Venster op de wereld' waarbij ook een boek verschijnt, waarin onder andere een aantal wetenschappers zich over de kilometer hebben gebogen. Het project is een initiatief van Joop Schaminée en Anton Stortelder, Alterra Wageningen UR
The ecology of life history evolution : genes, individuals and populations
Visser, M.E. - \ 2013
Wageningen : Wageningen University, Wageningen UR - ISBN 9789461735973
ecologie - evolutie - genetica - natuurlijke selectie - fenotypen - populatie-ecologie - levensgeschiedenis - ecology - evolution - genetics - natural selection - phenotypes - population ecology - life history
Natural selection shapes the life histories of organisms. The ecological interactions of these organisms with their biotic and abiotic environment shape the selection pressure on their phenotypes while their genetics determine how fast this selection leads to adaptation to their environment. The field of ecological genetics studies the response to natural selection in the wild and thus plays a key role in our understanding of the adaptive capacity of life, essential to understand how a changing environment affects the natural world.
The predictive adaptive response: modeling the life history evolution of the butterfly, Bicyclus anynana, in seasonal environments
Heuvel, J. van den; Saastamoinen, M. ; Brakefield, P.M. ; Kirkwood, T.B.L. ; Zwaan, B.J. - \ 2012
ecology - evolutionary - evolution - physiological - life history - modeling - individual based - stochastic spatial - phenotypic plasticy - polymorphism - resource allocation - theory - trade offs
A predictive adaptive response (PAR) is a type of developmental plasticity where the response to an environmental cue is not immediately advantageous but instead is later in life. The PAR is a way for organisms to maximize fitness in varying environments. Insects living in seasonal environments are valuable model systems for testing the existence and form of PAR. Previous manipulations of the larval and the adult environments of the butterfly Bicyclus anynana have shown that individuals that were food restricted during the larval stage coped better with forced flight during the adult stage compared to those with optimal conditions in the larval stage. Here, we describe a state-dependent energy allocation model, which we use to test whether such a response to food restriction could be adaptive in nature where this butterfly exhibits seasonal cycles. The results from the model confirm the responses obtained in our previous experimental work and show how such an outcome was facilitated by resource allocation patterns to the thorax during the pupal stage. We conclude that for B. anynana, early-stage cues can direct development toward a better adapted phenotype later in life and, therefore, that a PAR has evolved in this species.
Biology and ecology of Apanteles taragamae, a larval parasitoid of the cowpea pod borer Maruca vitrata
Dannon, A.E. - \ 2011
Wageningen University. Promotor(en): Marcel Dicke; Arnold van Huis, co-promotor(en): M. Tamò. - [S.l.] : S.n. - ISBN 9789085859482 - 188
vigna unguiculata - vignabonen - insectenplagen - maruca vitrata - boorders (insecten) - apanteles - sluipwespen - biologie - levensgeschiedenis - biologische bestrijding - vigna unguiculata - cowpeas - insect pests - maruca vitrata - boring insects - apanteles - parasitoid wasps - biology - life history - biological control

Maruca vitrata Fabricius is a key insect pest of cowpea in West Africa. Larvae of this moth can cause up to 80% of yield losses. The first classical biological control programme against M. vitrata started in 2005 with the introduction of Apanteles taragamae Viereck from Taiwan into Benin by the International Institute of Tropical Agriculture (IITA), Benin station.Thorough knowledge on the bioecology of A. taragamae is a prerequisite for implementing such programme. The work described in the present thesis evaluated the biological potential of this larval parasitoid to fill to the gap of information on its biology and ecology. Special emphasis was put on the main factors that determine the effectiveness/suitablility of biological control candidates, such as reproductive capacity, functional response, climatic adaptability, host foraging capacity, and non-target effects. The results revealed that two-day-old larvae were the most suitable host age, giving the highest percentage parasitism, lifetime fecundity and proportion of females. Larvae older than three days were not successfully parasitized. The percentage parasitism of two-day-old larvae was positively correlated with host density, indicating a good functional response of A. taragamae. Between 20 and 30 °C, the curve that described the relationship between the intrinsic rate of natural increase and the temperature for A. taragamae was above that of M. vitrata, suggesting that the parasitoid can faster build up its population than its host. The parasitoid showed its ability to use volatiles produced by cowpea flowers and host caterpillars when foraging. A host plant odour experience enhanced the capacity of the parasitoid to find uninfested flowers. The growth of non-parasitized or A. taragamae-parasitized larvae was slower and with reduced proportion of female wasps on some host plants compared to those reared on artificial diet. With regard to the non-target effects, the physiological host range and competitive ability of A. taragamae were assessed. None of the following lepidopteran species, Eldana saccharinaWalker, Chilo partellus (Swinhoe), Mussidia nigrivenella Ragonot, Cryptophlebia leucotreta (Meyrick), Sylepta derogata FabriciusandCorcyra cephalonica Stainto,was successfully parasitized by A. taragamae, suggesting its specificity for M. vitrata in Benin. In no-choice competition with the egg-larval parasitoid Phanerotoma leucobasis, A. taragamae outcompeted the latter. All the above attributes suggest that A. taragamae should be a suitable biocontrol agent against M. vitrata. A cage release strategy involved the host plant Sesbania cannabina, which was artificially infested with M. vitrata, and inoculated with adults of A. taragamae. The parasitoid was released in seven selected locations in Benin but the first recovery studies did not yet yield any information on its establishment after the first generation.

Evolutionary effects of fishing and implications for sustainable management: a case study of North Seas plaice and sole
Mollet, F.M. - \ 2010
Wageningen University. Promotor(en): Adriaan Rijnsdorp. - [S.l. : S.n. - ISBN 9789085856139 - 202
schol - tong (vis) - visserij - vis vangen - evolutie - rijpen - groei - voortplanting - levensgeschiedenis - kenmerken - adaptatie - visserijbeheer - duurzaamheid (sustainability) - zeevisserij - experimentele evolutie - plaice - dover soles - fisheries - fishing - evolution - maturation - growth - reproduction - life history - traits - adaptation - fishery management - sustainability - marine fisheries - experimental evolution
Habitat variation and life history strategies of benthic invertebrates
Franken, R.J.M. - \ 2008
Wageningen University. Promotor(en): Marten Scheffer, co-promotor(en): Edwin Peeters. - [S.l.] : S.n. - ISBN 9789085048688 - 158
waterinvertebraten - benthos - waterlopen - milieufactoren - zoetwaterecologie - habitats - levensgeschiedenis - snelheid - substraten - gammarus pulex - plecoptera - oevervegetatie - aquatic invertebrates - benthos - streams - environmental factors - freshwater ecology - habitats - life history - velocity - substrates - gammarus pulex - plecoptera - riparian vegetation
The thesis considers two key aspects of lotic freshwater ecosystems, the physical microhabitat and organic matter dynamics. The first part focuses on the indirect effects of light and riparian canopy cover on shredder growth and productivity through the effect on the nutritional quality of the food source. The second part addresses the nature of differences in response to physical habitat structure and current velocity in common species of shredders. Three invertebrate shredder-detritivore species were selected as study organisms: the freshwater shrimp Gammarus pulex, the freshwater louse Asellus aquaticus and the stonefly Nemoura cinerea
'Een werkzaam leven in dienst van de waterstaatsgeschiedenis'. Laudatio uitgesproken op donderdag 2 november 2006 ter gelegenheid van het afscheid van Prof.Dr Gerard van de Ven als hoogleraar waterstaatsgeschiedenis aan de Universiteit van Amsterdam
Vervloet, J.A.J. - \ 2007
Tijdschrift voor Waterstaatsgeschiedenis 16 (2007)1. - ISSN 0927-3336 - p. 56 - 60.
levensgeschiedenis - waterbeleid - geschiedenis - historische geografie - openbare redes - life history - water policy - history - historical geography - public speeches
Laudatio uitgesproken bij het afscheid van prof.dr. Gerard van de Ven als hoogleraar waterstaatsgeschiedenis (in het kader van het Schilthuisfonds) Universiteit van Amsterdam.
Verschuivingen van insectenplagen bij bomen sinds 1946 in relatie met klimaatverandering; met aandacht voor de effecten van stikstofdepositie, vochtstress, bossamenstelling en bosbeheer
Moraal, L.G. ; Jagers op Akkerhuis, G.A.J.M. ; Siepel, H. ; Schelhaas, M.J. ; Martakis, G.F.P. - \ 2004
Wageningen : Alterra (Alterra-rapport 856) - 68
insectenplagen - bossen - bomen - klimaatverandering - levenscyclus - levensgeschiedenis - milieufactoren - bosbedrijfsvoering - nederland - insecten - bosplagen - insect pests - forests - trees - climatic change - life cycle - life history - environmental factors - forest management - netherlands - insects - forest pests
Uit de jaarlijkse monitoring van plaaginsecten op bomen sinds 1946 blijkt dat er invasies van uitheemse insecten worden waargenomen, maar ook bij de inheemse insectenplagen treden er verschuivingen op. De vraag rijst of veranderende milieufactoren zoals verdroging, stikstofdepositie en klimaatverandering hierbij een oorzakelijke rol spelen. Wanneer meerdere factoren tegelijkertijd optreden wordt gesproken van `multiple stress¿. Klimaatverandering kan op een directe wijze op de ontwikkeling van insectenpopulaties inwerken. In andere gevallen kan de vitaliteit van de bomen of het bos zodanig verminderd zijn, dat secundaire organismen hun kans krijgen. Daarnaast zijn er in de loop van de tijd veranderingen in het bosbeheer en bossamenstelling gekomen. Om deze soms verstrengelde zaken te ontwarren is gekozen voor een unieke aanpak. Uit de database met gegevens sinds 1946, zijn de 150 meest gemelde plaaginsecten geselecteerd. Deze insecten zijn ingedeeld volgens een schema met bepaalde basale overlevingsstrategieën (Life History Strategies). Hieruit is gebleken dat insecten die overwinteren als ei, het de laatste decennia beter doen dan soorten die overwinteren als larve, pop of adult. Dit is een sterke aanwijzing voor een effect van klimaatverandering.
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