56 Works

Data from: Assessing potential impact of Bt eggplants on non-target arthropods in the Philippines

Mario V. Navasero, Randolph N. Candano, Desiree M. Hautea, Randy A. Hautea, Frank A. Shotkoski & Anthony M. Shelton
Studies on potential adverse effects of genetically engineered crops are part of an environmental risk assessment that is required prior to the commercial release of these crops. Of particular concern are non-target organisms (NTOs) that provide important ecosystem services. Here, we report on studies conducted in the Philippines over three cropping seasons with Bt eggplants expressing Cry1Ac for control of the eggplant fruit and shoot borer (EFSB), Leucinodes orbonalis, to examine potential effects on field...

Data from: Herbivore release drives parallel patterns of evolutionary divergence in invasive plant phenotypes

Akane Uesugi & André Kessler
1. Herbivory can drive rapid evolution of plant chemical traits mediating defensive and competitive ability. At a geographic scale, plant populations that escape selection from their ancestral herbivores may evolve decreased defense and increased competitiveness. While contrasts between native and invasive populations of plants lend support to this hypothesis, such experiments cannot establish causal links between herbivory and evolved invasive phenotypes. 2. Here, we conducted geographic contrasts, and coupled these with long-term selection experiments that...

Data from: Testosterone activates sexual dimorphism including male-typical carotenoid but not melanin plumage pigmentation in a female bird

Willow R. Lindsay, Douglas G. Barron, Michael S. Webster & Hubert Schwabl
In males it is frequently testosterone (T) that activates the expression of sexually selected morphological and behavioral displays, but the role of T in regulating similar traits in females is less clear. Here we combine correlational data with results from T and gonadotropin-releasing hormone (GnRH) manipulations in both sexes to assess the role of T in mediating sexually dimorphic coloration and morphology in the red-backed fairy-wren (Malurus melanocephalus). We show that (1) natural variation in...

Data from: Experimental tests of the function and flexibility of song consistency in a wild bird

Conor C. Taff & Corey R. Freeman-Gallant
Measures of bird song that capture aspects of motor performance, such as consistency, have become a major focus in understanding sexual selection on song. Despite accumulating evidence that consistency is related to reproductive success in many species, the relative importance of male–male interactions and female–male interactions is still unclear. We studied the function and flexibility of song consistency and song rate in common yellowthroat warblers (Geothlypis trichas). A previous study of this population found that...

Data from: Crop-dominated landscapes have higher vector-borne plant virus prevalence

Suzi B. Claflin, Laura E. Jones, Jennifer S. Thaler & Alison G. Power
Landscape composition affects local arthropod biodiversity, including herbivorous insects and their predators, yet to date landscape effects on insect-vectored plant diseases have received little attention. Here, we examine how landscape composition affects the prevalence of a viral pathogen in host plants, and the role the arthropod vector assemblage plays in mediating landscape effects. We measured the effect of landscape composition (measured as percentage of cropland and unmanaged land) on the plant virus Potato virus Y...

Data from: Demographic history inferred from genome-wide data reveals two lineages of sheldgeese endemic to a glacial refugium in the southern Atlantic

Cecilia Kopuchian, Leonardo Campagna, Adrián S. Di Giacomo, Robert E. Wilson, Mariana Bulgarella, Pablo Petracci, Juan Mazar Barnett, Ricardo Matus, Olivia Blank & Kevin G. McCracken
Aim: The Malvinas/Falkland Islands (MFI) constitute the largest archipelago in the southern Atlantic, and harbour endemic lineages that presumably evolved after sea-level rise, associated with glacial periods, isolated ancestral populations. We investigate the role of the MFI in isolating populations from continental counterparts of two highly vagile species: the sheldgeese Chloephaga picta and Chloephaga rubidiceps. Location: Patagonia and the Malvinas/Falkland Islands. Methods: We sampled C. picta and C. rubidiceps on the continent and MFI. Using...

Data from: The jujube genome provides insights into genome evolution and the domestication of sweetness/acidity taste in fruit trees

Jian Huang, Chunmei Zhang, Xing Zhao, Zhangjun Fei, KangKang Wan, Zhong Zhang, Xiaoming Pang, Xiao Yin, Yang Bai, Xiaoqing Sun, Lizhi Gao, Ruiqiang Li, Jinbo Zhang & Xingang Li
Jujube (Ziziphus jujuba Mill.) belongs to the Rhamnaceae family and is a popular fruit tree species with immense economic and nutritional value. Here, we report a draft genome of the dry jujube cultivar 'Junzao' and the genome resequencing of 31 geographically diverse accessions of cultivated and wild jujubes (Ziziphus jujuba var. spinosa). Comparative analysis revealed that the genome of 'Dongzao', a fresh jujube, was ~86.5 Mb larger than that of the 'Junzao', partially due to...

Data from: Draft assembly of elite inbred line PH207 provides insights into genomic and transcriptome diversity in maize

Candice N. Hirsch, Cory D. Hirsch, Alex B. Brohammer, Megan J. Bowman, Ilya Soifer, Omer Barad, Doron Sehm-Tov, Kobi Baruch, Fei Lu, Alvaro G. Hernandez, Christopher J. Fields, Chris L. Wright, Klaus Koehler, Nathan M. Springer, Edward S. Buckler, C. Robin Buell, Natalia De Leon, Shawn M. Kaeppler, Kevin Childs & Mark A. Mikel
Intense artificial selection over the last 100 years has produced elite maize (Zea mays) inbred lines that combine to produce high-yielding hybrids. To further our understanding of how genome and transcriptome variation contribute to the production of high-yielding hybrids, we generated a draft genome assembly of the inbred line PH207 to complement and compare with the existing B73 reference sequence. B73 is a founder of the Stiff Stalk germplasm pool, while PH207 is a founder...

Data from: Spatiotemporal variation in local adaptation of a specialist insect herbivore to its long-lived host plant

Aino Kalske, Roosa Leimu, J.F. Scheepens, Pia Mutikainen & J. F. Scheepens
Local adaptation of interacting species to one another indicates geographically variable reciprocal selection. This process of adaptation is central in the organization and maintenance of genetic variation across populations. Given that the strength of selection and responses to it often vary in time and space, the strength of local adaptation should in theory vary between generations and among populations. However, such spatiotemporal variation has rarely been explicitly demonstrated in nature and local adaptation is commonly...

Data from: Working with what you've got: unattractive males show greater mate-guarding effort in a duetting songbird

Jenélle Dowling & Michael S. Webster
When mates are limited, individuals should allocate resources to mating tactics that maximize fitness. In species with extra-pair paternity (EPP), males can invest in mate guarding, or, alternatively, in seeking EPP. Males should optimize fitness by adjusting investment according to their attractiveness to females, such that attractive males seek EPP, and unattractive males guard mates. This theory has received little empirical testing, leaving our understanding of the evolution of mating tactics incomplete; it is unclear...

Data from: Projected changes in prevailing winds for transatlantic migratory birds under global warming

Frank A. La Sorte & Daniel Fink
A number of terrestrial bird species that breed in North America cross the Atlantic Ocean during autumn migration when travelling to their non-breeding grounds in the Caribbean or South America. When conducting oceanic crossings, migratory birds tend to associate with mild or supportive winds, whose speed and direction may change under global warming. The implications of these changes for transoceanic migratory bird populations have not been addressed. We used occurrence information from eBird (1950–2015) to...

Data from: Examining disease prevalence for species of conservation concern using non-invasive spatial capture-recapture techniques

Arthur B. Muneza, Daniel W. Linden, Robert A. Montgomery, Amy J. Dickman, Gary J. Roloff, David W. Macdonald & Julian T. Fennessy
1. Non-invasive techniques have long been used to estimate wildlife population abundance and density. However, recent technological breakthroughs have facilitated non-invasive estimation of the proportion of animal populations with certain diseases. Giraffes Giraffa camelopardalisare increasingly becoming recognized as a species of conservation concern with decreasing population trajectories across their range in Africa. 2. Diseases may be an important component impacting giraffe population declines, and the emerging ‘Giraffe Skin Disease’ (GSD), characterized by the appearance of...

Data from: Biotic and abiotic variables influencing plant litter breakdown in streams: a global study

Luz Boyero, Richard Pearson, Cang Hui, Mark Gessner, Javier Perez, Markos Alexandrou, Manuel Graça, Bradley Cardinale, Ricardo Albariño, M. Arunachalam, Leon Barmuta, Andrew Boulton, Andreas Bruder, Marcos Callisto, Eric Chauvet, Russell Death, David Dudgeon, Andrea Encalada, Veronica Ferreira, Ricardo Figueroa, Alex Flecker, , Julie Helson, Tomoya Iwata, Tajang Jinggut … & Catherine Yule
Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, have high rates of carbon dioxide evasion and they contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and...

Data from: Local context drives infection of grasses by vector-borne generalist viruses

Elizabeth T. Borer, Eric W. Seabloom, Charles E. Mitchell & Alison G. Power
Host characteristics commonly determine infection risk, but infection can also be mediated by regional- or local-scale variation in the biotic and abiotic environment. Experiments can clarify the relative importance of these factors. We quantified drivers of infection by barley and cereal yellow dwarf viruses (B/CYDV), a group of generalist, vector-borne grass pathogens, at hierarchically nested spatial scales (105–1 m) by planting individuals of six common grass species into five Pacific Coast grassland sites spanning 7°...

Data from: Understanding spatial distributions: negative density-dependence in prey causes predators to trade-off prey quantity with quality

Allert I. Bijleveld, Robert B. MacCurdy, Ying-Chi Chan, Emma Penning, Richard M Gabrielson, John Cluderay, Eric L. Spaulding, Anne Dekinga, Sander Holthuijsen, Job Ten Horn, Maarten Brugge, Jan A. Van Gils, David W. Winkler, Theunis Piersma & Rich M. Gabrielson
Negative density-dependence is generally studied within a single trophic level, thereby neglecting its effect on higher trophic levels. The ‘functional response’ couples a predator's intake rate to prey density. Most widespread is a type II functional response, where intake rate increases asymptotically with prey density; this predicts the highest predator densities at the highest prey densities. In one of the most stringent tests of this generality to date, we measured density and quality of bivalve...

Data from: Genetic diversity of the two commercial tetraploid cotton species in the Gossypium Diversity Reference Set

Lori L. Hinze, Elodie Gazave, Michael A. Gore, David D. Fang, Brian E. Scheffler, John Z. Yu, Don C. Jones, James Frelichowski & Richard G. Percy
A diversity reference set has been constructed for the Gossypium accessions in the U.S. National Cotton Germplasm Collection to facilitate more extensive evaluation and utilization of accessions held in the Collection. A set of 105 mapped simple sequence repeat markers were used to study the allelic diversity of 1,933 tetraploid Gossypium accessions representative of the range of diversity of the improved and wild accessions of G. hirsutum and G. barbadense. The reference set contained 410...

Data from: Field performance of Bt eggplants (Solanum melongena L.) in the Philippines: Cry1Ac expression and control of the eggplant fruit and shoot borer (Leucinodes orbonalis Guenée)

Desiree M. Hautea, Lourdes D. Taylo, Anna Pauleen L. Masanga, Maria Luz J. Sison, Josefina O. Narciso, Reynaldo B. Quilloy, Randy A. Hautea, Frank A. Shotkoski & Anthony M. Shelton
Plants expressing Cry proteins from the bacterium, Bacillus thuringiensis (Bt), have become a major tactic for controlling insect pests in maize and cotton globally. However, there are few Bt vegetable crops. Eggplant (Solanum melongena) is a popular vegetable grown throughout Asia that is heavily treated with insecticides to control the eggplant fruit and shoot borer, Leucinodes orbonalis (EFSB). Herein we provide the first publicly available data on field performance in Asia of eggplant engineered to...

Data from: Song evolution, speciation, and vocal learning in passerine birds

Nicholas A. Mason, Kevin J. Burns, Joseph A. Tobias, Santiago Claramunt, Nathalie Seddon & Elizabeth Perrault Derryberry
Phenotypic divergence can promote reproductive isolation and speciation, suggesting a possible link between rates of phenotypic evolution and the tempo of speciation at multiple evolutionary scales. To date, most macroevolutionary studies of diversification have focused on morphological traits, whereas behavioral traitsࣧincluding vocal signalsࣧare rarely considered. Thus, although behavioral traits often mediate mate choice and gene flow, we have a limited understanding of how behavioral evolution contributes to diversification. Furthermore, the developmental mode by which behavioral...

Data from: Geohistorical records indicate no impact of the Deepwater Horizon oil spill on oyster body size

Gregory P. Dietl & Stephen R. Durham
Documentation of the near- and long-term effects of the Deepwater Horizon (DWH) oil spill, one of the largest environmental disasters in US history, is still ongoing. We used a novel before-after-control-impact analysis to test the hypothesis that average body size of intertidal populations of the eastern oyster (Crassostrea virginica) inhabiting impacted areas in Louisiana decreased due to increased stress/mortality related to the oil spill. Time-averaged death assemblages of oysters were used to establish a pre-spill...

Data from: Empirical demonstration of hybrid chromosomal races in house mice

Mabel D. Giménez, Thadsin Panithanarak, Heidi C. Hauffe & Jeremy B. Searle
Western house mice (Mus musculus domesticus) and common shrews (Sorex araneus) are important models for study of chromosomal speciation. Both had ancestral karyotypes consisting of telocentric chromosomes, and each is subdivided into numerous chromosomal races many of which have resulted from fixation of new mutations (Robertsonian fusions and whole-arm reciprocal translocations). However, some chromosomal races in both species may alternatively have originated through hybridization, with particular homozygous recombinant products reaching fixation. Here, we demonstrate the...

Data from: Do the antipredator strategies of shared prey mediate intraguild predation and mesopredator suppression?

John D. J. Clare, Daniel W. Linden, Eric M. Anderson & David M. MacFarland
Understanding the conditions that facilitate top predator effects upon mesopredators and prey is critical for predicting where these effects will be significant. Intraguild predation (IGP) and the ecology of fear are hypotheses used to describe the effects of top predators upon mesopredators and prey species, but make different assumptions about organismal space use. The IGP hypothesis predicts that mesopredator resource acquisition and risk are positively correlated, creating a fitness deficit. But if shared prey also...

Data from: Ecological mismatches are moderated by local conditions in two populations of a long-distance migratory bird

Nathan Senner, Maria Stager, Brett K. Sandercock & Nathan R. Senner
Ecological mismatches between reproductive events and seasonal resource peaks are frequently proposed to be a key driver of population dynamics resulting from global climate change. Many local populations are experiencing reduced reproductive success as a consequence of mismatches, but few mismatches have led to species-level population declines. To better understand this apparent paradox, we investigated the breeding phenology and chick survival of two disjunct populations of Hudsonian godwits Limosa haemastica breeding at Churchill, Manitoba and...

Data from: Fatal diseases and parasitoids: from competition to facilitation in a shared host.

Ann E. Hajek & Saskya Van Nouhuys
Diverse parasite taxa share hosts both at the population level and within individual hosts and their interactions, ranging from competitive exclusion to facilitation, can drive community structure and dynamics. Emergent pathogens have the potential to greatly alter community interactions. We found that an emergent fungal entomopathogen dominated pre-existing lethal parasites in populations of the forest defoliating gypsy moth, Lymantria dispar. The parasite community was composed of the fungus and four parasitoid species that only develop...

Data from: Modelling tooth–prey interactions in sharks: the importance of dynamic testing

Katherine A. Corn, Stacy C. Farina, Jeffrey Brash & Adam P. Summers
The shape of shark teeth varies among species, but traditional testing protocols have revealed no predictive relationship between shark tooth morphology and performance. We developed a dynamic testing device to quantify cutting performance of teeth. We mimicked head-shaking behaviour in feeding large sharks by attaching teeth to the blade of a reciprocating power saw fixed in a custom-built frame. We tested three tooth types at biologically relevant speeds and found differences in tooth cutting ability...

Data from: Genome editing in butterflies reveals that spalt promotes and Distal-less represses eyespot colour patterns

Linlin Zhang & Robert D. Reed
Butterfly eyespot colour patterns are a key example of how a novel trait can appear in association with the co-option of developmental patterning genes. Little is known, however, about how, or even whether, co-opted genes function in eyespot development. Here we use CRISPR/Cas9 genome editing to determine the roles of two co-opted transcription factors that are expressed during early eyespot determination. We found that deletions in a single gene, spalt, are sufficient to reduce or...

Registration Year

  • 2016
    56

Resource Types

  • Dataset
    56

Affiliations

  • Cornell University
    56
  • University of California System
    3
  • University of Minnesota
    3
  • Estación Biológica de Doñana
    2
  • University of Montana
    2
  • University of Georgia
    2
  • United States Department of Agriculture
    2
  • Universidad San Francisco de Quito
    2
  • University of Wisconsin-Madison
    2
  • University of Rochester
    2