37 Works

Data from: Evolutionary and phylogenetic insights from a nuclear genome sequence of the extinct, giant subfossil koala lemur Megaladapis edwardsi

Stephanie Marciniak, Mehreen R. Mughal, Laurie R. Godfrey, Richard J. Bankoff, Heritiana Randrianatoandro, Brooke E. Crowley, Christina M. Bergey, Kathleen M. Muldoon, Jeannot Randrianasy, Brigitte M. Raharivololona, Stephan C. Schuster, Ripan S. Malhi, Anne D. Yoder, , Logan Kistler & George H. Perry
No endemic Madagascar animal with body mass >10 kg survived a relatively recent wave of extinction on the island. From morphological and isotopic analyses of skeletal ‘subfossil’ remains we can reconstruct some of the biology and behavioral ecology of giant lemurs (primates; up to ~160 kg), elephant birds (up to ~860 kg), and other extraordinary Malagasy megafauna that survived well into the past millennium. Yet much about the evolutionary biology of these now extinct species...

A place to land: spatiotemporal drivers of stopover habitat use by migrating birds

Emily Cohen, Jeffrey Buler, Kyle Horton, Andrew Farnsworth, Peter Marra, Hannah Clipp, Jaclyn Smolinsky & Daniel Sheldon
Migrating birds require en route habitats to rest and refuel. Yet habitat use has never been integrated with passage to understand factors that determine where and when birds stopover during spring and autumn migration. Here, we introduce the stopover-to-passage ratio (SPR), the percentage of passage migrants that stop in an area, and use eight years of data from 12 weather surveillance radars to estimate over 50% SPR during spring and autumn through the Gulf of...

Data from: A synthesis of the effects of cheatgrass invasion on U.S. Great Basin carbon storage

R Chelsea Nagy, Emily Fusco, Jennifer Balch, John Finn, Adam Mahood, Jenica Allen & Bethany Bradley
Non-native, invasive Bromus tectorum (cheatgrass) is pervasive in sagebrush ecosystems in the Great Basin ecoregion of the western U.S., competing with native plants and promoting more frequent fires. As a result, cheatgrass invasion likely alters carbon (C) storage in the region. Many studies have measured C pools in one or more common vegetation types: native sagebrush, invaded sagebrush, and cheatgrass-dominated (often burned) sites, but these results have yet to be synthesized. We performed a literature...

Data on Fossil Fuel Divestment Commitments through March 2018

Tyler Hansen & Robert Pollin

Data from: Morphology, performance and fluid dynamics of the crayfish escape response

Jocelyn Hunyadi, Todd Currier, Yahya Modarres-Sadeghi, Brooke Flammang & Ethan Clotfelter
Sexual selection can result in an exaggerated morphology that constrains locomotor performance. We studied the relationship between morphology and the tail-flip escape response in male and female rusty crayfish (Faxonius rusticus), a species in which males have enlarged claws (chelae). We found that females had wider abdomens and longer uropods (terminal appendage of the tail fan) than males, while males possessed deeper abdomens and larger chelae, relative to total length. Chelae size was negatively associated...

Non-adaptive host-use specificity in tropical armored scale insects

Nate B. Hardy, Daniel Peterson, Geoffrey Morse, Takao Itioka, Jiufeng Wei & Benjamin Normark
Most herbivorous insects are diet specialists in spite of the apparent advantages of being a generalist. This conundrum might be explained by fitness trade-offs on alternative host plants, yet evidence of such trade-offs has been elusive. Another hypothesis is that specialization is non-adaptive, evolving through neutral population genetic processes and within the bounds of historical constraints. Here we report on a striking lack of evidence for the adaptiveness of specificity in tropical canopy communities of...

Positive and negative interspecific interactions between coexisting rice planthoppers neutralize the effects of elevated temperatures

Finbarr Horgan, Finbarr Horgan, Arriza Arida, Goli Ardestani & Maria Liberty Almazan
Global warming is often predicted to increase damage to plants through direct effects on insect herbivores. However, the indirect impacts of rising temperatures on herbivores, mediated through interactions with their biotic environment, could dampen these effects. Using a series of reciprocal density experiments with gravid females and developing nymphs, we examined interspecific competition between two coexisting phloem feeders, Nilaparvata lugens (BPH) and Sogatella furcifera (WBPH), on rice at 25°C and 30°C. WBPH performed better (i.e.,...

Something old, something new: evolution of Colombian weedy rice (Oryza spp.) through de novo de-domestication, exotic gene flow, and hybridization

Veronica Hoyos, Guido Plaza & Ana L. Caicedo
Weedy rice (Oryza spp.) is a worldwide weed of domesticated rice (O. sativa), considered particularly problematic due to its strong competition with the crop, which leads to reduction of yields and harvest quality. Several studies have established multiple independent origins for weedy rice populations in the U.S. and various parts of Asia; however, the origins of weedy rice in South America have not been examined in a global context. We evaluated the genetic variation of...

Dam Impoundments Sediment Mass – Tributaries to the Hudson River

Brian Yellen & Jonathan Woodruff
This repository contains data from sediment cores collected during 2017-2018 from 17 impoundments that are located on tributaries to the tidal portion of the Hudson River as part of a larger NERRs collaborative project entitled Dams and Sediment on the Hudson (DaSH). A companion dataset that contains sediment core data from Hudson tidal marshes is archived at UMass Scholarworks data repository. Sediment cores collected from impoundments behind dams were recovered via piston push coring, which...

Plasticity and genetic basis of cichlid gill arch anatomy reveal novel roles for Hedgehog signaling

Craig Albertson
Teleost gill arches are exquisitely evolved to maximize foraging efficiency, and include structures for the capture, filtering, and processing of prey. While both plasticity and a genetic basis for gill arch traits have been noted, the relative contribution of genetics and the environment in shaping these structures remains poorly understood. East African cichlids are particularly useful in this line of study due to their highly diverse and plastic feeding apparatus. Here we explore the gene-by-environmental...

The genetic basis of coordinated plasticity across functional units in a Lake Malawi cichlid mapping population

Dina Navon, Paul Hatini, Lily Zogbaum & Craig Albertson
Adaptive radiations are often stereotypical, as populations repeatedly specialize along conserved environmental axes. Phenotypic plasticity may be similarly stereotypical, as individuals respond to environmental cues. These parallel patterns of variation, which are often consistent across traits, have led researchers to propose that plasticity can facilitate predictable patterns of evolution along environmental gradients. This “flexible stem” model of evolution raises questions about the genetic nature of plasticity, including: How complex is the genetic basis for plasticity?...

Data and analyses from: Herbivory and time since flowering shape floral rewards and pollinator-pathogen interactions

Luis A. Aguirre, Julie K. Davis, Philip C. Stevenson & Lynn S. Adler
Herbivory can induce chemical changes throughout plant tissues including flowers, which could affect pollinator-pathogen interactions. Pollen is highly defended compared to nectar, but no study has examined whether herbivory affects pollen chemistry. We assessed the effects of leaf herbivory on nectar and pollen alkaloids in Nicotiana tabacum, and how herbivory-induced changes in nectar and pollen affect pollinator-pathogen interactions. We damaged leaves of Nicotiana tabacum using the specialist herbivore Manduca sexta and compared nicotine and anabasine...

Female ornaments: is red skin color attractive to males and related to condition in rhesus macaques?

James Higham, Clare Kimock, Tara Mandalaywala, Michael Heistermann, Julie Cascio, Megan Petersdorf, Sandra Winters, Will Allen & Constance Dubuc
Sexual selection produces extravagant male traits, such as colorful ornaments, via female mate choice. More rarely, in mating systems in which males allocate mating effort between multiple females, female ornaments may evolve via male mate choice. Females of many anthropoid primates exhibit ornaments that indicate intra-individual cyclical fertility, but which have also been proposed to function as inter-individual quality signals. Rhesus macaque females are one such species, exhibiting cyclical facial color variation that indicates ovulatory...

Data from: Flowering plant composition shapes pathogen infection intensity and reproduction in bumble bee colonies

Nicholas Barber, Lynn Adler, Olivia Biller & Rebecca Irwin
Pathogens pose significant threats to pollinator health and food security. Pollinators can transmit diseases during foraging, but the consequences of plant species composition for infection is unknown. In agroecosystems, flowering strips or hedgerows are often used to augment pollinator habitat. We used canola as a focal crop in tents, and manipulated flowering strip composition using plant species we had previously shown to result in higher or lower bee infection in short-term trials. We also manipulated...

Data for Autonomous snapping and jumping polymer gels

Alfred J. Crosby, Yongjin Kim & Jay van den Berg

Massachusetts Beach Grain Size and Slope Data

Jonathan Woodruff, Nicholas Venti, Stephen Mabee, Alycia DiTroia & Douglas Beach

Data from: Hidden leks in a migratory songbird: mating advantages for earlier and more attractive males

Lilian Manica, Jeff Graves, Jeffrey Podos & Regina Macedo
In some socially monogamous birds, territories sometimes occur in aggregations. The “hidden lek” hypothesis suggests that territorial aggregations might be explained by males establishing territories near successful males (“hotshot” model), or by females preferring to mate in large clusters (“female preference” model). In both scenarios, clusters would provide more opportunities for finding mates and achieving extra-pair copulations. Our study tests predictions of these two models in the blue-black grassquit (Volatinia jacarina). Males of this species...

Influence of sea turtle nesting on hunting behavior and movements of jaguars in the dry forest of northwest Costa Rica

Victor Montalvo, Todd K. Fuller, Carolina Saénz-Bolaños, Juan Carlos Cruz, Isabel Hagnauer, Hansell Herrera & Eduardo Carrillo
Jaguars (Panthera onca) are opportunistic predators that prey on large profitable prey items, such sea turtles at nesting beaches. Here we use jaguar and sea turtle track count surveys, combined with satellite telemetry of one jaguar, to evaluate whether jaguar hunting behavior and movements are influenced by seasonal sea turtle nesting in the Sector Santa Rosa of Área de Conservación Guanacaste in northwest Costa Rica. We used Generalized Linear Models to evaluate the effect of...

Successful biological control of winter moth, Operophtera brumata, in the northeastern United States

Hannah Broadley, Joseph Elkinton & George Boettner
Winter moth, Operophtera brumata, native to Europe, invaded the northeastern United States in the late 1990s, where it caused widespread defoliation of forests and shade trees ranging from 2,266 to 36,360 ha per year between 2003 and 2015 in Massachusetts. In 2005, we initiated a biological control effort based on the specialist tachinid parasitoid Cyzenis albicans, which had previously been introduced along with the generalist ichneumonid parasitoid Agrypon flaveolatum to control winter moth in Nova...

Data from: Developing a Stopover-CORT hypothesis: corticosterone predicts body composition and refueling rate in Gray Catbirds during migratory stopover

Joely DeSimone, Mariamar Gutierrez Ramirez, Cory Elowe, Michael Griego, Creagh Breuner & Alexander Gerson
Migratory flight is energetically challenging, requiring alternating phases of fuel catabolism and fuel accumulation, accompanied by dramatic changes in body composition and behavior. Baseline corticosterone (CORT; the primary glucocorticoid in birds) is thought to underlie transitions between fuel catabolism during flight, fuel deposition during stopover, and the initiation of migratory flight. However, studies of CORT on stopover physiology and behavior remain disparate efforts, lacking the cohesion of a general hypothesis. Here we develop a Stopover-CORT...

Hudson River Estuary Tidal Marsh Sediment Data

Brian Yellen & Jonathan Woodruff
This repository contains data from sediment cores collected at six tidal wetland complexes that are located within the Hudson River Estuary. The sites include Stockport Marsh, Esopus Delta, Tivoli North Bay, Tivoli South Bay, Vanderburgh Cove, and Iona Island Marsh. A variety of core collection tools and methods were used to collect uncompacted records, including gouge coring, Russian peat coring, and piston push coring, with the method determined by coring environment. The general workflow for...

Structural evolution drives diversification of the large LRR-RLK gene family

Jarrett Man, Joseph Gallagher Gallagher & Madelaine Bartlett
Cells are continuously exposed to chemical signals that they must discriminate between and respond to appropriately. In embryophytes, the Leucine-Rich Repeat Receptor-Like Kinases (LRR-RLKs) are signal receptors critical in development and defense. LRR-RLKs have diversified to hundreds of genes in many plant genomes. Although intensively studied, a well-resolved LRR-RLK gene tree has remained elusive. To resolve the LRR-RLK gene tree, we developed an improved gene discovery method based on iterative Hidden Markov Model (HMM)-searching and...

Appendix 2. Database of impact assessment summaries for 100 range-shifting invasive plants

Mei Rockwell-Postel & Bethany A. Bradley
Summary reports of Environmental Impacts Classification of Alien Taxa (EICAT) assessments of 100 invasive plants projected to shift their ranges into Connecticut, Massachusetts, New York, or Rhode Island by 2050.

Appendix 1. Database of impact assessments for 100 range-shifting invasive plants

Mei Rockwell-Postel & Bethany A. Bradley
Environmental Impacts Classification of Alien Taxa (EICAT) assessments of 100 invasive plants projected to shift their ranges into Connecticut, Massachusetts, New York, or Rhode Island by 2050.

Registration Year

  • 2020
    37

Resource Types

  • Dataset
    37

Affiliations

  • University of Massachusetts Amherst
    37
  • Royal Botanic Gardens
    2
  • University of Alaska Anchorage
    2
  • Yale University
    2
  • Cornell University
    2
  • Rutgers University
    2
  • University of Montana
    1
  • Binghamton University
    1
  • University of Washington
    1
  • Columbia University
    1