334 Works

Data from: Interactive life-history traits predict sensitivity of plants and animals to temporal autocorrelation

Maria Paniw, Arpat Ozgul & Roberto Salguero-Gomez
Temporal autocorrelation in demographic processes is an important aspect of population dynamics, but a comprehensive examination of its effects on different life-history strategies is lacking. We use matrix populations models from 454 plant and animal populations to simulate stochastic population growth rates (log λs) under different temporal autocorrelations in demographic rates, using simulated and observed covariation among rates. We then test for differences in sensitivities, or changes, of log λs to changes in autocorrelation among...

Data from: Ecological context and the probability of mistakes underlie speed choice

Rebecca Wheatley, Amanda C. Niehaus, Diana O. Fisher & Robbie S. Wilson
1.Movement is fundamental to the ecology of animals, and an animal's choice of movement speed determines the duration, energetic costs, and probability of success of any given activity. It is often assumed that animals should use maximum speeds when escaping from predators, but an increasing number of studies find animals rarely move as fast as they can in nature because faster speeds come with a greater chance of mistakes. Mathematical modelling suggests that, when escaping...

Data from: The contribution of spontaneous mutations to thermal sensitivity curve variation in Drosophila serrata

Camille Anne Lousie Latimer, Katrina McGuigan, Robbie S. Wilson, Mark W. Blows & Stephen F. Chenoweth
Many traits studied in ecology and evolutionary biology change their expression in response to a continuously varying environmental factor. One well-studied example are thermal performance curves (TPCs); continuous reaction norms that describe the relationship between organismal performance and temperature and are useful for understanding the trade-offs involved in thermal adaptation. We assayed TPCs for locomotor activity in a set of 66 spontaneous mutation accumulation lines in the fly Drosophila serrata. Factor-analytic modeling of the mutational...

Data from: Habitat collapse due to overgrazing threatens turtle conservation in marine protected areas

Marjolijn J. A. Christianen, Peter M. J. Herman, Tjeerd J. Bouma, Leon P. M. Lamers, Marieke M. Van Katwijk, Tjisse Van Der Heide, Peter J. Mumby, Brian R. Silliman, Sarah L. Engelhard, Madelon Van De Kerk, Wawan Kiswara & Johan Van De Koppel
Marine protected areas (MPAs) are key tools for combatting the global overexploitation of endangered species. The prevailing paradigm is that MPAs are beneficial in helping to restore ecosystems to more ‘natural’ conditions. However, MPAs may have unintended negative effects when increasing densities of protected species exert destructive effects on their habitat. Here, we report on severe seagrass degradation in a decade-old MPA where hyper-abundant green turtles adopted a previously undescribed below-ground foraging strategy. By digging...

Data from: Evolutionary origins of a bioactive peptide buried within preproalbumin

Alysha G. Elliott, Christina Delay, Huanle Liu, Zaiyang Phua, K. Johan Rosengren, Aurélie H. Benfield, Jose L. Panero, Michelle L. Colgrave, Achala S. Jayasena, Kerry M. Dunse, Marilyn A. Anderson, Edward E. Schilling, Daniel Ortiz-Barrientos, David J. Craik & Joshua S. Mylne
The de novo evolution of proteins is now considered a frequented route for biological innovation, but the genetic and biochemical processes that lead to each newly created protein are often poorly documented. The common sunflower (Helianthus annuus) contains the unusual gene PawS1 (Preproalbumin with SFTI-1) that encodes a precursor for seed storage albumin; however, in a region usually discarded during albumin maturation, its sequence is matured into SFTI-1, a protease-inhibiting cyclic peptide with a motif...

Data from: Why does offspring size affect performance? Integrating metabolic scaling with life-history theory

Amanda K. Pettersen, Craig R. White & Dustin J. Marshall
Within species, larger offspring typically outperform smaller offspring. While the relationship between offspring size and performance is ubiquitous, the cause of this relationship remains elusive. By linking metabolic and life-history theory, we provide a general explanation for why larger offspring perform better than smaller offspring. Using high-throughput respirometry arrays, we link metabolic rate to offspring size in two species of marine bryozoan. We found that metabolism scales allometrically with offspring size in both species: while...

Data from: Strong and stable geographic differentiation of swamp buffalo maternal and paternal lineages indicates domestication in the China/Indochina border region

Yi Zhang, Yongfang Lu, Marnoch Yindee, Kuan-Yi Li, Hsiao-Yun Kuo, Yu-Ten Ju, Shaohui Ye, , Qiang Li, Yachun Wang, Vu Chi Cuong, Lan Doan Pham, Bounthong Bouahom, Bingzhuang Yang, Xianwei Liang, Zhihua Cai, Dianne Vankan, Wallaya Manatchaiworakul, Nonglid Kowlim, Somphot Duangchantrasiri, Worawidh Wajjwalku, Ben Colenbrander, Yuan Zhang, Peter Beerli, Johannes A. Lenstra … & J. Stuart F. Barker
The swamp type of the Asian water buffalo is assumed to have been domesticated by about 4000 years BP, following the introduction of rice cultivation. Previous localizations of the domestication site were based on mitochondrial DNA (mtDNA) variation within China, accounting only for the maternal lineage. We carried out a comprehensive sampling of China, Taiwan, Vietnam, Laos, Thailand, Nepal and Bangladesh and sequenced the mtDNA Cytochrome b gene and control region and the Y-chromosomal ZFY,...

Data from: Predation can select for later and more synchronous arrival times in migrating species

Anna M. F. Harts, Nadiah P. Kristensen & Hanna Kokko
For migratory species, the timing of arrival at breeding grounds is an important determinant of fitness. Too early arrival at the breeding ground is associated with various costs, and we focus on one understudied cost: that migrants can experience a higher risk of predation if arriving earlier than the bulk of the breeding population. We show, using both a semi-analytic and simulation model, that predation can select for later arrival. This is because of safety...

Data from: The hitchhiker's guide to Europe: the infection dynamics of an ongoing Wolbachia invasion and mitochondrial selective sweep in Rhagoletis cerasi

Hannes Schuler, Kirsten Koeppler, Sabine Daxböck-Horvath, Bilal Rasool, Susanne Krumboeck, Dietmar Schwarz, Thomas Hoffmeister, Birgit Schlick-Steiner, Florian Steiner, Arndt Telschow, Christian Stauffer, Wolfgang Arthofer, Markus Riegler, Birgit C. Schlick-Steiner, Florian M. Steiner & Thomas S. Hoffmeister
Wolbachia is a maternally inherited and ubiquitous endosymbiont of insects. It can hijack host reproduction by manipulations such as cytoplasmic incompatibility (CI) to enhance vertical transmission. Horizontal transmission of Wolbachia can also result in the colonization of new mitochondrial lineages. In this study, we present a 15-year-long survey of Wolbachia in the cherry fruit fly Rhagoletis cerasi across Europe and the spatiotemporal distribution of two prevalent strains, wCer1 and wCer2, and associated mitochondrial haplotypes in...

Data from: A new plant virus discovered by immunocapture of double stranded RNA; assessment of a novel approach for viral metagenomics studies

Arnaud G. Blouin, Howard A. Ross, Jody Hobson-Peters, Caitlin A. O’Brien, Ben Warren, Robin MacDiarmid & Caitlin A. O'Brien
Next-generation sequencing technologies enable the rapid identification of viral infection of diseased organisms. However, despite a consistent decrease in sequencing costs, it is difficult to justify their use in large-scale surveys without a virus sequence enrichment technique. As the majority of plant viruses have an RNA genome, a common approach is to extract the double-stranded RNA (dsRNA) replicative form, to enrich the replicating virus genetic material over the host background. The traditional dsRNA extraction is...

Data from: Replicated analysis of the genetic architecture of quantitative traits in two wild great tit populations

Anna W. Santure, Jocelyn Poissant, Isabelle De Cauwer, Kees Van Oers, Matthew R. Robinson, John L. Quinn, Martien A. M. Groenen, Marcel E. Visser, Ben C. Sheldon & Jon Slate
Currently there is much debate on the genetic architecture of quantitative traits in wild populations. Is trait variation influenced by many genes of small effect or by a few genes of major effect? Where is additive genetic variation located in the genome? Do the same loci cause similar phenotypic variation in different populations? Great tits (Parus major) have been studied extensively in long-term studies across Europe, and consequently are considered an ecological 'model organism'. Recently,...

Data from: Prioritizing management actions for invasive populations using cost, efficacy, demography, and expert opinion for 14 plant species worldwide

Natalie Z. Kerr, Peter W. J. Baxter, Roberto Salguero-Gomez, Glenda M. Wardle, Yvonne M. Buckley & Peter W.J. Baxter
Management of invasive populations is typically investigated case-by-case. Comparative approaches have been applied to single aspects of management, such as demography, with cost or efficacy rarely incorporated. We present an analysis of the ranks of management actions for 14 species in five countries that extends beyond the use of demography alone to include multiple metrics for ranking management actions, which integrate cost, efficacy and demography (cost-effectiveness) and managers’ expert opinion of ranks. We use content...

Data from: The role of defensive ecological interactions in the evolution of conotoxins

Jutty Rajan Prashanth, Sebastien Dutertre, Ai-Hua Jin, Vincent Lavergne, Brett Hamilton, Fernanda C. Cardoso, John Griffin, Deon J. Venter, Paul F. Alewood, Richard J. Lewis & A. H. Jin
Venoms comprise of complex mixtures of peptides evolved for predation and defensive purposes. Remarkably, some carnivorous cone snails can inject two distinct venoms in response to predatory or defensive stimuli, providing a unique opportunity to study separately how different ecological pressures contribute to toxin diversification. Here, we report the extraordinary defensive strategy of the Rhizoconus subgenus of cone snails. The defensive venom from this worm-hunting subgenus is unusually simple, almost exclusively composed of αD-conotoxins instead...

Data from: Parental exposure modulates the effects of UV-B on offspring in guppies

Ensiyeh Ghanizadeh Kazerouni, Craig E. Franklin & Frank Seebacher
1.The environment experienced by parents can alter offspring phenotypes. Such developmental plasticity is beneficial when it optimises offspring responses to their prevailing environment. Plasticity may be detrimental, however, if there is a mismatch between parental and offspring environments, although reversible acclimation within individuals could counteract a developmental mismatch. 2.UV-B radiation damages cells directly and by increasing reactive oxygen species (ROS) formation. There are indications that the developmental environment can influence ROS defences, which could enhance...

Data from: Sibling species of mutualistic Symbiodinium clade G from bioeroding sponges in the western Pacific and western Atlantic oceans

Blake D. Ramsby, Malcolm S. Hill, Daniel J. Thornhill, Sieuwkje F. Steenuizen, Michelle Achlatis, Allison M. Lewis, Todd C. LaJeunesse & Sieuwkje F. Steenhuizen
Dinoflagellates in the genus Symbiodinium associate with a broad array of metazoan and protistian hosts. Symbiodinium-based symbioses involving bioeroding sponge hosts have received less attention than those involving scleractinian hosts. Certain species of common Cliona harbor high densities of an ecologically restricted group of Symbiodinium, referred to as Clade G. The relationships of these unusual Clade G Symbiodinium with Foraminifera, sponges, and black coral (Antipatharia) are rarely studied. Nonetheless, analyses of genetic evidence indicate that...

Data from: Constraints on trait combinations explain climatic drivers of biodiversity: the importance of trait covariance in community assembly

John M. Dwyer & Daniel C. Laughlin
Trade-offs maintain diversity and structure communities along environmental gradients. Theory indicates that if covariance among functional traits sets a limit on the number of viable trait combinations in a given environment, then communities with strong multidimensional trait constraints should exhibit low species diversity. We tested this prediction in winter annual plant assemblages along an aridity gradient using multilevel structural equation modelling. Univariate and multivariate functional diversity measures were poorly explained by aridity, and were surprisingly...

Data from: Mobulid rays feed on euphausiids in the Bohol Sea

Christoph A. Rohner, Katherine B. Burgess, Joshua M. Rambahiniarison, Joshua D. Stewart, Alessandro Ponzo & Anthony J. Richardson
Mobulid rays have a conservative life history and are caught in direct fisheries and as by-catch. Their subsequent vulnerability to overexploitation has recently been recognized, but fisheries management can be ineffective if it ignores habitat and prey preferences and other trophic interactions of the target species. Here, we assessed the feeding ecology of four mobulids (Manta birostris, Mobula tarapacana, M. japanica, M. thurstoni) in the Bohol Sea, Philippines, using stomach contents analysis of fisheries specimens...

Data from: Higher-order interactions capture unexplained complexity in diverse communities

Margaret Mayfield & Daniel Stouffer
Natural communities are well known to be maintained by many complex processes. Despite this, the practical aspects of studying them often require some simplification, such as the widespread assumption that direct, additive competition captures the important details about how interactions between species impact community diversity. On the other hand, more complex non-additive ‘higher-order’ interactions, are assumed to be negligible or absent. Notably, these assumptions are poorly supported and have major consequences for the accuracy with...

Data from: Epithelial magnesium transport by TRPM6 is essential for prenatal development and adult survival

Vladimir Chubanov, Thomas Gudermann, Wenke Jonas, Annette Schürmann, Önder A Yildirim, Yuriy Shymkiv, Alexey G Ryazanov, Christian Weber, Emiel PC Van Der Vorst, Harald Bartsch, Karl Sotlar, Attila Braun, David G Simmons, Silvia Ferioli, Annika Wisnowsky, Banu Akdogan, Lorenz Mittermeier, Ludmila Sytik, Susanna Zierler & Vindi Jurinovic
Mg2+ regulates many physiological processes and signalling pathways. However, little is known about the mechanisms underlying the organismal balance of Mg2+. Capitalizing on a set of newly generated mouse models, we provide an integrated mechanistic model of the regulation of organismal Mg2+ balance during prenatal development and in adult mice by the ion channel TRPM6. We show that TRPM6 activity in the placenta and yolk sac is essential for embryonic development. In adult mice, TRPM6...

Data from: The molecular biogeography of the Indo-Pacific: testing hypotheses with multispecies genetic patterns

Eric D. Crandall, Cynthia Riginos, Chris E. Bird, Libby Liggins, Eric Treml, Maria Beger, Paul H. Barber, Sean R. Connolly, Peter F. Cowman, Joseph D. Dibattista, Jeff A. Eble, Sharon F. Magnuson, John B. Horne, Marc Kochzius, Harilaos A. Lessios, Shang Yin Vanson Liu, William B. Ludt, Hawis Madduppa, John M. Pandolfi, Robert R. Toonen, Contributing Members Of Diversity Of The Indo-Pacific Network & Michelle R. Gaither
Aim: To test hypothesized biogeographic partitions of the tropical Indo-Pacific Ocean with phylogeographic data from 56 taxa, and to evaluate the strength and nature of barriers emerging from this test. Location: The Indo-Pacific Ocean. Time Period: Pliocene through the Holocene. Major Taxa Studied: 56 marine species. Methods: We tested eight biogeographic hypotheses for partitioning of the Indo-Pacific using a novel modification to analysis of molecular variance. Putative barriers to gene flow emerging from this analysis...

Data from: Morphological and digestive adjustments buffer performance: how staging shorebirds cope with severe food declines

Shoudong Zhang, Zhijun Ma, Chi-Yeung Choi, He-Bo Peng, David S. Melville, Tian-Tian Zhao, Qing-Quan Bai, Wen-Liang Liu, Ying-Chi Chan, Jan A. Van Gils & Theunis Piersma
Organisms cope with environmental stressors by behavioral, morphological, and physiological adjustments. Documentation of such adjustments in the wild provides information on the response space in nature and the extent to which behavioral and bodily adjustments lead to appropriate performance effects. Here we studied the morphological and digestive adjustments in a staging population of migrating Great Knots Calidris tenuirostris in response to stark declines in food abundance and quality at the Yalu Jiang estuarine wetland (northern...

Data from: QuLinePlus: extending plant breeding strategy and genetic model simulation to cross-pollinated populations – case studies in forage breeding

Valerio Hoyos-Villegas, Vivi N. Arief, Wen-Hsi Yang, Mingzhu Sun, Ian H. DeLacy, Brent A. Barrett, Zulfi Jahufer & Kaye E. Basford
Plant breeders are supported by a range of tools that assist them to make decisions about the conduct or design of plant breeding programs. Simulations are a strategic tool that enable the breeder to integrate the multiple components of a breeding program into a number of proposed scenarios that are compared by a range of statistics measuring the efficiency of the proposed systems. A simulation study for the trait growth score compared two major strategies...

Data from: Sensitivity analysis of conservation targets in systematic conservation planning

Noam Levin, Tessa Mazor, Eran Brokovich, Pierre-Elie Jablon & Salit Kark
Systematic conservation planning has rapidly advanced in the past decade and has been increasingly incorporated in multiple studies and conservation projects. One of its requirements is a quantitative definition of conservation targets. While the Convention on Biological Diversity aims to expand the world's protected area network to 17% of the land surface, in many cases such uniform policy-driven targets may not be appropriate for achieving persistence of various species. Targets are often set arbitrarily, often...

Data from: Heterogeneity of genetic architecture of body size traits in a free-living population

Camillo Bérénos, Philip A. Ellis, Jill G. Pilkington, S. Hong Lee, Jake Gratten & Josephine M. Pemberton
Knowledge of the underlying genetic architecture of quantitative traits could aid in understanding how they evolve. In wild populations, it is still largely unknown whether complex traits are polygenic or influenced by few loci with major effect, due to often small sample sizes and low resolution of marker panels. Here, we examine the genetic architecture of five adult body size traits in a free-living population of Soay sheep on St Kilda using 37 037 polymorphic...

Data from: Landscape context explains changes in the functional diversity of regenerating forests better than climate or species richness

Michael Sams, Hao Ran Lai, Stephen Bonser, Peter Vesk, Robert Kooyman, Daniel Metcalfe, John W. Morgan, Margaret Mayfield, M. A. Sams, D. J. Metcalfe, R. M. Kooyman & P. A. Vesk
Aim A rich literature on forest succession provides general expectations for the steps forests go through while reassembling after disturbance, yet we still have a surprisingly poor understanding of why the outcomes of forest recovery after logging (or other disturbances) vary so extensively. In this paper, we test the hypothesis that regional species pool, system productivity, climate and landscape structure are important drivers of forest reassembly outcomes. Location Transect 1,500 km in length along the...

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  • University of Queensland
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