150 Works

Data from: Habitat attributes associated with short-term settlement of Ozark hellbender (Cryptobranchus alleganiensis bishopi) salamanders following translocation to the wild

Catherine M. Bodinof, Jeffrey T. Briggler, Randall E. Junge, Jeff Beringer, Mark D. Wanner, Chawna D. Schuette, Jeff Ettling & Joshua J. Millspaugh
1. Organisms associated with lotic systems rank among the most threatened because of global change. Although translocation is being increasingly applied as a conservation strategy, most studies have focused on survival and recruitment of individuals, and few have attempted to identify how habitat attributes influence short-term settlement of animals during the critical post-release period. 2. We demonstrate the application of resource selection modelling in an information theoretic framework to identify release-site characteristics that will increase...

Data from: Effects of conditionally expressed phenotypes and environment on amphibian dispersal in nature

Brittany H. Ousterhout & Raymond D. Semlitsch
Individuals vary greatly in the distance they disperse, and in doing so, strongly affect ecological and evolutionary processes. Dispersal, when viewed as a component of phenotype, can be affected independently or jointly by environment. However, among taxa with complex life cycles that occupy different habitats over ontogeny, the effects of environment on dispersal and the interaction between environment and phenotype remains poorly understood. Here, we conducted a field experiment to measure how dispersal distance was...

Data from: The complexity of background clutter affects nectar bat use of flower odor and shape cues

Nathan Muchhala & Diana Serrano
Given their small size and high metabolism, nectar bats need to be able to quickly locate flowers during foraging bouts. Chiropterophilous plants depend on these bats for their reproduction, thus they also benefit if their flowers can be easily located, and we would expect that floral traits such as odor and shape have evolved to maximize detection by bats. However, relatively little is known about the importance of different floral cues during foraging bouts. In...

Effects of grazing on C:N:P stoichiometry attenuate from soils to plants and insect herbivores in a semi-arid grassland

Nazim Hassan, Xiaofei Li, Jianyong Wang, Hui Zhu, Duofeng Pan, Iqra Naeen, Petri Nummi, Deli Wang, Deborah Finke & Zhiwei Zhong
Understanding the processing of limiting nutrients among organisms is an important goal of community ecology. Less known is how human disturbances may alter the stoichiometric patterns among organisms from different trophic levels within communities. Here, we investigated how livestock grazing affects the C:N:P ecological stoichiometry of soils, plants (Leymus chinensis), and insect herbivores (Euchorthippus spp.) in a semi-arid grassland in northeastern China. We found that 3 years of grazing significantly enhanced soil available N and...

Replaying the evolutionary tape to investigate subgenome dominance in allopolyploid Brassica napus

Kevin Bird, Chad Niederhuth, Shujun Ou, Malia Gehan, J. Chris Pires, Zhiyong Xiong, Robert VanBuren & Patrick Edger
Interspecific hybridization and allopolyploidization merge evolutionarily distinct parental genomes (subgenomes) into a single nucleus. A frequent observation is that one subgenome is "dominant” over the other subgenome, having a greater number of retained genes and being more highly expressed. Which subgenome becomes dominantly expressed in allopolyploids remains poorly understood. Here we “replayed the evolutionary tape” with six isogenic resynthesized Brassica napus (rapeseed) allopolyploid lines and investigated subgenome dominance patterns over the first ten generations post...

Data from: High flight costs, but low dive costs, in auks support the biomechanical hypothesis for flightlessness in penguins

Kyle H. Elliott, Robert E. Ricklefs, Anthony J. Gaston, Scott A. Hatch, John R. Speakman & Gail K. Davoren
Flight is a key adaptive trait. Despite its advantages, flight has been lost in several groups of birds, notably among seabirds, where flightlessness has evolved independently in at least five lineages. One hypothesis for the loss of flight among seabirds is that animals moving between different media face tradeoffs between maximizing function in one medium relative to the other. In particular, biomechanical models of energy costs during flying and diving suggest that a wing designed...

Data from: Women’s preference for masculine traits is disrupted by images of male-on-female aggression

Yaoran Li, Drew H. Bailey, Benjamin Winegard, David A. Puts, Lisa L. M. Welling & David C. Geary
Women’s preferences for men’s masculinized faces and voices were assessed after women (n = 331) were primed with images of male-on-male aggression, male-on-female aggression, pathogens, and neutral scenes. Male-on-male aggression and pathogen primes were associated with increased preference for masculine traits, but the same effect emerged in the neutral condition. We show the increased preference for masculine traits was due to repeated exposure to these traits, not the priming images themselves. Images of male-on-female aggression...

Data from: Saguaro (Carnegiea gigantea) mortality and population regeneration in the cactus forest of Saguaro National Park: seventy-five years and counting

Thomas V. Orum, Nancy Ferguson & Jeanne D. Mihail
Annual census data spanning seventy-five years document mortality and regeneration in a population of saguaro cactus (Carnegiea gigantea) in the Cactus Forest of the Rincon Mountain District of Saguaro National Park near Tucson, AZ. On 6 four-hectare plots, each saguaro was censused and a methodical search for new saguaros was conducted annually each year from 1942 through 2016, with the exception of 1955. Regeneration has been episodic with 828 plants established from 1959 through 1993...

Data from: Angiosperm wood structure: global patterns in vessel anatomy and their relationship to wood density and potential conductivity

Amy E. Zanne, Mark Westoby, Daniel S. Falster, David D. Ackerly, Scott R Loarie, Sarah E. J. Arnold & David A. Coomes
Woody stems comprise a large biological carbon fraction and determine water transport between roots and leaves; their structure and function can influence both carbon and hydrological cycles. While angiosperm wood anatomy and density determine hydraulic conductivity and mechanical strength, little is known about interrelations across many species. We compiled a global dataset comprising two anatomical traits for 3005 woody angiosperms: mean vessel lumen area ( ) and number per unit area (N). From these, we...

Data from: Phylotranscriptomic analysis and genome evolution of the Cypripedioideae (Orchidaceae)

Sarah A. Unruh, Michael R. McKain, Yung-I Lee, Tomohisa Yukawa, Melissa K. McCormick, Richard P. Shefferson, Ann Smithson, James H. Leebens-Mack & J. Chris Pires
Premise of Study: The slipper orchids (Cypripedioideae) are a morphologically distinct subfamily of Orchidaceae. They also have some of the largest genomes in the orchids, which may be due to polyploidy or some other mechanism of genome evolution. We generated ten transcriptomes and incorporated existing RNA-seq data to infer a multi-locus nuclear phylogeny of the Cypripedioideae and to determine if a whole genome duplication event (WGD) correlated to the large genome size of this subfamily....

Data from: The genome sequence and insights into the immunogenetics of the bananaquit (Passeriformes: Coereba flaveola)

Jennifer Antonides, Robert Ricklefs & J.A. DeWoody
Avian genomics, especially of non-model species, is in its infancy relative to mammalian genomics. Here, we describe the sequencing, assembly, and annotation of a new avian genome, that of the bananaquit Coereba flaveola (Passeriformes: Thraupidae). We produced ∼30-fold coverage of the genome with an assembly size of ca. 1.2 Gb, including approximately 16,500 annotated genes. Passerine birds, such as the bananaquit, are commonly infected by avian malarial parasites (Haemosporida), which presumably drive adaptive evolution of...

Data from: Drosophila FoxP mutants are deficient in operant self-learning

Ezequiel Mendoza, Julien Colomb, Jürgen Rybak, Hans-Joachim Pflüger, Troy Zars, Constance Scharff & Björn Brembs
Intact function of the Forkhead Box P2 (FOXP2) gene is necessary for normal development of speech and language. This important role has recently been extended, first to other forms of vocal learning in animals and then also to other forms of motor learning. The homology in structure and in function among the FoxP gene members raises the possibility that the ancestral FoxP gene may have evolved as a crucial component of the neural circuitry mediating...

Data from: Subgenome dominance in an interspecific hybrid, synthetic allopolyploid, and a 140-year-old naturally established neo-allopolyploid monkeyflower

Patrick P. Edger, Ronald D. Smith, Michael R. McKain, Arielle M. Cooley, Mario Vallejo-Marin, Yao-Wu Yuan, Adam J. Bewick, Lexiang Ji, Adrian E. Platts, Megan J. Bowman, Kevin Childs, Jacob D. Washburn, Robert Schmitz, Gregory D. Smith, J. Chris Pires & Joshua R. Puzey
Recent studies have shown that one of the parental subgenomes in ancient polyploids is generally more dominant - having both retained more genes and being more highly expressed - a phenomenon termed subgenome dominance. The genomic features that determine how quickly and which subgenome dominates within a newly formed polyploid remain poorly understood. To investigate the rate of subgenome dominance emergence, we examined gene expression, gene methylation, and transposable element (TE) methylation in a natural,...

Data from: Phylogeny and photosynthesis of the grass tribe Paniceae

Jacob D. Washburn, James C. Schnable, Gerrit Davidse & J. Chris Pires
PREMISE OF THE STUDY: The grass tribe Paniceae includes important food, forage, and bioenergy crops such as switchgrass, napiergrass, various millet species, and economically important weeds. Paniceae are also valuable for answering scientific and evolutionary questions about C4 photosynthetic evolution, drought tolerance, and spikelet variation. However, the phylogeny of the tribe remains incompletely resolved. METHODS: Forty-five taxa were selected from across the tribe Paniceae and outgroups for genome survey sequencing (GSS). These data were used...

Data from: Does hunting or hiking affect wildlife communities in protected areas?

Roland Kays, Arielle W. Parsons, Megan C. Baker, Ellizabeth L. Kalies, Tavis Forrester, Robert Costello, Christopher T. Rota, Joshua J. Millspaugh & William J. McShea
Managed public wild areas have dual mandates to protect biodiversity and provide recreational opportunities for people. These goals could be at odds if recreation, ranging from hiking to legal hunting, disrupts wildlife enough to alter their space use or community structure. We evaluated the effect of managed hunting and recreation on 12 terrestrial wildlife species by employing a large citizen science camera trapping survey at 1947 sites stratified across different levels of human activities in...

Data from: A multivariate analysis of genetic variation in the advertisement call of the gray treefrog, Hyla versicolor

Allison M. Welch, Michael J. Smith & H. Carl Gerhardt
Genetic variation in sexual displays is crucial for an evolutionary response to sexual selection, but can be eroded by strong selection. Identifying the magnitude and sources of additive genetic variance underlying sexually-selected traits is thus an important issue in evolutionary biology. We conducted a quantitative genetics experiment with gray treefrogs (Hyla versicolor) to investigate genetic variances and covariances among features of the male advertisement call. Two energetically-expensive traits showed significant genetic variation: call duration, expressed...

Data from: Genome-wide association study in Arabidopsis thaliana of natural variation in seed oil melting point, a widespread adaptive trait in plants

Sandra E. Branham, Sara J. Wright, Aaron Reba, Ginnie D. Morrison & C. Randal Linder
Seed oil melting point is an adaptive, quantitative trait determined by the relative proportions of the fatty acids that compose the oil. Micro- and macro-evolutionary evidence suggests selection has changed the melting point of seed oils to covary with germination temperatures because of a trade-off between total energy stores and the rate of energy acquisition during germination under competition. The seed oil compositions of 391 natural accessions of Arabidopsis thaliana, grown under common-garden conditions, were...

Data from: Taphonomy of the Ediacaran fossil Pteridinium simplex preserved three-dimensionally in mass flow deposits, Nama Group, Namibia

Michael Meyer, David Elliott, James Schiffbauer, Patricia Vickers-Rich, Michael Hall, Karl Hoffman, Gabi Schneider, Shuhai Xiao, James D. Schiffbauer & Mike Meyer
Ediacara-type fossils are found in a diverse array of preservational styles, implying that multiple taphonomic mechanisms might have been responsible for their preservational expression. For many Ediacara fossils, the “death mask” model has been invoked as the primary taphonomic pathway. The key to this preservational regime is the replication or sealing of sediments around the degrading organisms by microbially induced precipitation of authigenic pyrite, leading toward fossil preservation along bedding planes. Nama-style preservation, on the...

Data from: Taxonomic composition and body-mass distribution in the terminal Pleistocene mammalian fauna from the Marmes site, southeastern Washington state, U.S.A.

R. Lee Lyman
Mean adult body mass of mammal taxa is a fundamental ecological variable. Variability in the distributions of body masses of a mammal fauna suggest variability in habitat structure. Mammal remains from the Marmes archaeological site in southeastern Washington State date between 13,200 and 10,400 b.p., during the Pleistocene–Holocene transition (PHT). Known environmental history prompts the expectations that the Marmes PHT mammal remains should represent greater species richness and a larger array of body-mass sizes than...

Data from: Fuelwood sustainability revisited: integrating size structure and resprouting into a spatially realistic fuelshed model

Wayne C. Twine & Ricardo M. Holdo
Much concern has been expressed about the sustainability of fuelwood harvesting in Africa. Most models predict that demand will outstrip supply within a few decades, resulting in severe deforestation. However, despite substantial impacts of harvesting on woody vegetation structure, the ‘fuelwood crisis’ predicted since the 1970s has not materialized. We propose that this is at least partially because regeneration through coppicing has been poorly accounted for in most models. We developed a local fuelwood model...

Data from: Influence of preexisting preference for color on sampling and tracking behavior in bumble bees

Gyanpriya Maharaj, Patricia Panzica, Marisa Yoder, Aimee S. Dunlap & Patricia Horack
Animals reduce uncertainty in their lifetime by using information to guide decision making. Information available can be inherited from the past or gathered from the present. Therefore, animals must balance inherited biases with new information that may be in conflict with those potential biases. In our study, we set up color pairings such that an arbitrarily chosen focal color, human-orange, would result in an inherent bias in comparison to three other colors tested resulting in...

Data from: Three decades of annual growth, mortality, physical condition, and microsite for ten tropical rainforest tree species

Deborah A. Clark, David B. Clark & Susan G. Letcher
In lowland tropical rainforest, hundreds of tree species typically occur within mesoscale landscapes (50-500 ha). There is no consensus ecological theory that accounts for the coexistence of so many species with similar morphologies and the same fundamental requirements of light, nutrients, water, and physical space. In part this is due to the limited understanding of post-establishment ecology for the vast majority of tropical tree species. Of even more concern is the lack of understanding of...

Data from: Diversification by host switching and dispersal shaped the diversity and distribution of avian malaria parasites in Amazonia

Alan Fecchio, Jeffrey Andrew Bell, Michael David Collins, Izeni Pires Farias, Christopher Harry Trisos, Joseph Andrew Tobias, Vasyl Volodymyr Tkach, Jason David Weckstein, Robert Eric Ricklefs & Henrique Batalha-Filho
Understanding how pathogens and parasites diversify through time and space is fundamental to predicting emerging infectious diseases. Here, we use biogeographic, coevolutionary and phylogenetic analyses to describe the origin, diversity, and distribution of avian malaria parasites in the most diverse avifauna on Earth. We first performed phylogenetic analyses using the mitochondrial cytochrome b (cyt b) gene to determine relationships among parasite lineages. Then, we estimated divergence times and reconstructed ancestral areas to uncover how landscape...

Presence, precipitation, and temperature data used to estimate eastern forest songbird historical distributions using climatic niche modeling

Emily Sinnott
Boundaries between vegetation types, known as ecotones, can be dynamic in response to climatic changes. The North American Great Plains includes a forest-grassland ecotone in the south-central United States that has expanded and contracted in recent decades in response to historical periods of drought and pluvial conditions. This dynamic region also marks a western distributional limit for many passerine birds that typically breed in forests of the eastern United States. To better understand the influence...

Phenotype data for: Pleiotropic and non-redundant effects of an auxin importer in Setaria and maize

Chuanmei Zhu, Mathew Box, Dhineshkumar Thiruppathi, Hao Hu, Yunqing Yu, Callista Martin, Andrew Doust, Paula McSteen & Elizabeth Kellogg
Directional transport of auxin is critical for inflorescence and floral development in flowering plants, but the role of auxin influx carriers (AUX1 proteins) has been largely overlooked. Taking advantage of available AUX1 mutants in Setaria viridis and maize, we uncover previously unreported aspects of plant development that are affected by auxin influx, including higher order branches in the inflorescence, stigma branch number, and glume (floral bract) development, and plant fertility. However, disruption of auxin flux...

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