16 Works

Data from: Are acute and acclimated thermal effects on metabolic rate modulated by cell size? A comparison between diploid and triploid zebrafish larvae

Adam Hermaniuk, Iris L.E. Van De Pol & Wilco Verberk
Being composed of small cells may carry energetic costs related to maintaining ionic gradients across cell membranes as well as benefits related to diffusive oxygen uptake. Here we test the hypothesis that these costs and benefits of cell size in ectotherms are temperature dependent. To study the consequences of cell size for whole-organism metabolic rate we compared diploid and triploid zebrafish larvae differing in cell size. A fully factorial design was applied combining three different...

Data from msGBS: A new high-throughput approach to quantify the relative species abundance in root samples of multi-species plant communities

Niels Wagemaker
Plant interactions are as important belowground as aboveground. Belowground plant interactions are however inherently difficult to quantify, as roots of different species are difficult to disentangle. Although for a couple of decades molecular techniques have been successfully applied to quantify root abundance, root identification and quantification in multi-species plant communities remains particularly challenging. Here we present a novel methodology, multi-species Genotyping By Sequencing (msGBS), as a next step to tackle this challenge. First, a multi-species...

Data from: Species abundance fluctuations over 31 years are associated with plant-soil feedback in a species-rich mountain meadow

, Tomáš Herben, Annelien Van Den Brink, Eric Visser & Hans De Kroon
1. Increasing evidence suggest that plant-soil interactions play an essential role in plant community assembly processes. Empirical investigations show that plant species abundance in the field is often related to plant-soil biota interactions, however, the direction of these relations have yielded inconsistent results. 2. We combined unique 31-year long field data on species abundances from a species-rich mountain meadow with single time point plant-soil feedback greenhouse experiments of 24 co-occurring plant species. We tested whether...

Mammal population densities at a global scale are higher in human-modified areas

Marlee A. Tucker, Luca Santini, Chris Carbone & Thomas Mueller
Global landscapes are changing due to human activities with consequences for both biodiversity and ecosystems. For single species, terrestrial mammal population densities have shown mixed responses to human pressure, with both increasing and decreasing densities reported in the literature. How the impacts of human activities on mammal populations translates into altered global density patterns remains unclear. Here we aim to disentangle the effect of human impacts on large-scale patterns of mammal population densities using a...

Data from: Spatiotemporal variation in disturbance impacts derived from simultaneous tracking of aircraft and shorebirds

Henk-Jan Van Der Kolk, Andrew Allen, Bruno Ens, Kees Oosterbeek, Eelke Jongejans & Martijn Van De Pol
1. Assessing impacts of disturbance over large areas and long time periods is crucial for nature management, but also challenging since impacts depend on both wildlife responses to disturbance and on the spatiotemporal distribution of disturbance sources. Combined tracking of animals and disturbance sources enables quantification of wildlife responses as a function of the distance to a disturbance source. We provide a framework to derive such distance-response curves and combine those with disturbance source presence...

Apparent breeding success drives long-term population dynamics of a migratory swan

Rascha Nuijten, Stefan Vriend, Kevin Wood, Trinus Haitjema, Eileen Rees, Eelke Jongejans & Bart Nolet
The ability of a species to adapt to environmental change is ultimately reflected in its vital rates – i.e., survival and reproductive success of individuals. Together, vital rates determine trends in numbers, commonly monitored using counts of species abundance. Rapid changes in abundance can give rise to concern, leading to calls for research into the biological mechanisms underlying variations in demography. For the NW European population of Bewick’s swan (Cygnus columbianus bewickii), there have been...

Data from: Local soil legacy effects in a multi-species grassland community are underlain by root foraging and soil nutrient availability

, Nyncke J. Hoekstra, Cornelis A.M. Wagemaker, Hannie De Caluwe, Annemiek E. Smit-Tiekstra, Eric J.W. Visser & Hans De Kroon
1. Plant soil legacies consisting of species-specific microbial communities are hypothesized to play a critical, structuring role in plant species co-existence processes. Plant species are thought to perform worse on soil conditioned by the same species compared to soil of other species, which serves as a self-limitation mechanism and averts mono-dominance of strong competitors. Here we test in a multi-species community setting, whether root colonisation and resource utilisation of soil patches with distinct soil legacies,...

Data from: Drivers of plant traits that allow survival in wetlands

Yingji Pan, Ellen Cieraad, Bev Clarkson, Tim Colmer, Ole Pedersen, Eric Visser, Laurentius A.C.J. Voesenek & Peter Van Bodegom
Plants have developed a suite of traits to survive the anaerobic and anoxic soil conditions in wetlands. Previous studies on wetland plant adaptive traits have focused mainly on physiological aspects under experimental conditions, or compared the trait expression of the local species pool. Thus, a comprehensive analysis of potential factors driving wetland plant adaptive traits under natural environmental conditions is still missing. In this study, we analysed three important wetland adaptive traits, i.e. root porosity,...

Disentangling drivers of spatial autocorrelation in species distribution models

Konrad P. Mielke, Tom Claassen, Michela Busana, Tom Heskes, Mark A. J. Huijbregts, Kees Koffijberg & Aafke M. Schipper
Species distribution models (SDMs) are frequently used to understand the influence of site properties on species occurrence. For robust model inference, SDMs need to account for the spatial autocorrelation of virtually all species occurrence data. Current methods do not routinely distinguish between extrinsic and intrinsic drivers of spatial autocorrelation, although these may have different implications for conservation. Here, we present and test a method that disentangles extrinsic and intrinsic drivers of spatial autocorrelation using repeated...

Data from: Universal metabolic constraints shape the evolutionary ecology of diving in animals

Wilco Verberk, Piero Calosi, Francois Brischoux, John Spicer, Theodore Garland & David Bilton
Diving as a lifestyle has evolved on multiple occasions when air-breathing terrestrial animals invaded the aquatic realm, and diving performance shapes the ecology and behaviour of all air-breathing aquatic taxa, from small insects to great whales. Using the largest dataset yet assembled, we show that maximum dive duration increases predictably with body mass in both ectotherms and endotherms. Compared to endotherms, ectotherms can remain submerged for longer, but the mass scaling relationship for dive duration...

Data from: Seagrass coastal protection services reduced by invasive species expansion and megaherbivore grazing

Rebecca K. James, Marjolijn J. A. Christianen, Marieke Van Katwijk, Jaco De Smit, , Peter Herman & Tjeerd Bouma
1. Seagrasses provide an important ecosystem service by creating a stable erosion-resistant seabed that contributes to effective coastal protection. Variable morphologies and life history strategies, however, are likely to impact the sediment stabilisation capacity of different seagrass species. We question how opportunistic invasive species and increasing grazing by megaherbivores may alter sediment stabilisation services provided by established seagrass meadows, using the Caribbean as a case study. 2. Utilising two portable field-flumes that simulate unidirectional and...

Experimental vacancies do not induce settlement despite habitat saturation in a cooperative breeder

Lyanne Brouwer & Andrew Cockburn
The paradox of cooperative breeding ­whereby individuals assist others instead of reproducing independently­ is generally explained through ecological constraints, but experimental evidence is scant. Here we performed the crucial test of the role of habitat saturation through experimental creation of vacancies and find that despite abundant presence of potential mates, subordinates are reluctant to disperse into suitable vacant habitat where conspecifics are absent. We argue that sudden disappearance of multiple group members might indicate a...

A Portrait Head of Severus Alexander in Delft

Sam Heijnen & Eric M. Moormann
An as yet unpublished ancient marble head from the Paul Tétar collection in Delft (NL) can be interpreted as a portrait of Emperor Severus Alexander (222–235 A.D.). The provenance of the piece is unknown. On the basis of the bearded cheeks and moustache as well as other criteria the portrait must be classified in ›Group C‹ of the official portrait type of the emperor and dated to c. 225 A.D. Thus 31 portraits of the...

Data from: Increasing synergistic effects of habitat destruction and hunting on mammals over three decades in the Gran Chaco

Alfredo Romero-Muñoz, Ana Benítez-López, Damaris Zurell, Matthias Baumann, Micaela Camino, Julieta Decarre, Hugo Del Castillo, Anthony Giordano, Bibiana Gómez-Valencia, Christian Levers, Andrew Noss, Veronica Quiroga, Jeffrey Thompson, Ricardo Torres, Marianela Velilla, Andrea Weiler & Tobias Kuemmerle
Habitat destruction and overexploitation are the main threats to biodiversity and where they co-occur, their combined impact is often larger than their individual one. Yet, detailed knowledge of the spatial footprints of these threats is lacking, including where they overlap and how they change over time. These knowledge gaps are real barriers for effective conservation planning. Here, we develop a novel approach to reconstruct the individual and combined footprints of both threats over time. We...

Data from: Molecular square dancing in CO-CO collisions

ZhongFa Sun, David H. Parker, Marc C. Van Hemert, Jérôme Loreau, Ad Van Der Avoird & Arthur G. Suits
Knowledge of rotational energy transfer (RET) involving carbon monoxide (CO) molecules is crucial for the interpretation of astrophysical data. As of now, our nearly perfect understanding of atom-molecule scattering shows that RET usually occurs by only a simple “bump” between partners. To advance molecular dynamics to the next step in complexity, we studied molecule-molecule scattering in great detail for collision between two CO molecules. Using advanced imaging methods and quasi-classical and fully quantum theory, we...

Large carnivore expansion in Europe is associated with human population density and land cover changes

Marta Cimatti, Nathan Ranc, Ana Ana Benítez-López, Luigi Maiorano, Luigi Boitani, Francesca Cagnacci, Mirza Čengić, Paolo Ciucci, Mark Huijbregts, Miha Krofel, José López Bao, Nuria Selva, Henrik Andren, Carlos Bautista, Duško Cirovic, Heather Hemmingmoore, Ilka Reinhardt, Miha Marenče, Yorgos Mertzanis, Luca Pedrotti, Igor Trbojević, Andreas Zetterberg, Tomasz Zwijacz-Kozica & Luca Santini
Aim: The recent recovery of large carnivores in Europe has been explained as resulting from a decrease in human persecution driven by widespread rural land abandonment, paralleled by forest cover increase and the consequent increase in availability of shelter and prey. We investigated whether land cover and human population density changes are related to the relative probability of occurrence of three European large carnivores: the grey wolf (Canis lupus), the Eurasian lynx (Lynx lynx) and...

Registration Year

  • 2020
    16

Resource Types

  • Dataset
    15
  • Text
    1

Affiliations

  • Radboud University Nijmegen
    15
  • Nederlands Instituut voor Ecologie
    3
  • Dutch Centre for Field Ornithology
    2
  • Leiden University
    2
  • German Institute for Economic Research
    1
  • University of Oviedo
    1
  • Plymouth University
    1
  • Radboud University, Radboud Institute for Culture and History
    1
  • Australian National University
    1
  • Senckenberg Biodiversity and Climate Research Centre
    1