Margarita M. López-Uribe

Margarita M. López-Uribe
Pennsylvania State University | Penn State · Department of Entomology

PhD

About

74
Publications
21,044
Reads
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1,079
Citations
Additional affiliations
August 2007 - May 2014
Cornell University
Position
  • PhD Student
August 2004 - August 2006
Universidade Federal de São Carlos
Position
  • Master's Student

Publications

Publications (74)
Preprint
Full-text available
Solitary bees are often exposed to various pesticides applied for pest control on farmland while providing pollination services to food crops. Increasing evidence suggests that sublethal toxicity of agricultural pesticides affects solitary bees differently than the social bees used to determine regulatory thresholds like honey bees and bumblebees....
Preprint
Full-text available
Wild bees form diverse communities that pollinate plants in both native and agricultural ecosystems making them both ecologically and economically important. The growing evidence of bee declines has sparked increased interest in monitoring bee community and population dynamics using standardized methods. Here, we studied the dynamics of bee biodive...
Article
Full-text available
Annual losses of honey bee colonies are high in the United States, with losses often attributed to the effects of the ectoparasitic mite, Varroa destructor, and its associated viruses (e.g., Deformed Wing Virus, DWV). In the spring, beekeepers rely on package bees to replace lost colonies. However, these packages often come with high levels of mite...
Article
Full-text available
Although bee visitation rate to flowers is often used to assess both pollination services and bee abundance, the abundance of social species needs to be assessed by quantifying the number colonies instead of the number of foraging individuals. Because accurately quantifying the number of wild bee colonies can be difficult, the relationship of visit...
Article
Full-text available
Managed and wild bee populations are in decline around the globe due to several biotic and abiotic stressors. Pathogenic viruses associated with the Western honey bee (Apis mellifera) have been identified as key contributors to reductions in the number of managed honey bee colonies, and are known to be transmitted to wild bee populations through sh...
Article
Full-text available
Urban areas can serve as biodiversity refuges for pollinators because of the high diversity of available floral and nesting resources. However, it remains unclear what plant species commonly used for urban landscaping provide floral resources that pollinators actively use. Here, we integrate data from the pollen and species distribution models of t...
Chapter
Bees comprise a large group of over 20 000 species that show a wide range of forms, habits, plant associations, and degree of social interactions. The steep decline in managed honey bee colonies in North America and Europe since the mid 2000s has precipitated a big investment on developing a better understanding of the diversity of life history tra...
Article
Full-text available
Studies of the ecoimmunology of feral organisms can provide valuable insight into how host–pathogen dynamics change as organisms transition from human-managed conditions back into the wild. Honey bees (Apis mellifera Linnaeus) offer an ideal system to investigate these questions as colonies of these social insects often escape management and establ...
Article
North America has more than 4000 bee species, yet we have little information on the health, distribution, and population trends of most of these species. In the United States, what information is available is distributed across multiple institutions, and efforts to track bee populations are largely uncoordinated on a national scale. An overarching...
Book
Full-text available
In 2002, Pennsylvania enacted legislation mandating the adoption of an integrated pest management (IPM) plan for each school district, intermediate unit, and area vocational-technical school in the state, and a 72-hour notification and posting period prior to pesticide use in schools or on school grounds. In 2012, the Pennsylvania Department of Agr...
Article
Full-text available
Studying the pollen preferences of introduced bees allows us to investigate how species use host-plants when establishing in new environments. Osmia cornifrons is a solitary bee introduced into North America from East Asia for pollination of Rosaceae crops such as apples and cherries. We investigated whether O. cornifrons (i) more frequently collec...
Article
Full-text available
Studying the pollen preferences of introduced bees allows us to investigate how species use host-plants when establishing in new environments. Osmia cornifrons is a solitary bee introduced into North America from East Asia for pollination of Rosaceae crops such as apples and cherries. We investigated whether O. cornifrons (i) more frequently collec...
Article
Full-text available
Checklists provide information about the species found in a defined region and serve as baselines for detecting species range expansions, contractions, or introductions. Bees are a diverse and important group of insect pollinators. Although some bee populations are declining, these patterns are difficult to document and generalize due to a lack of...
Article
Full-text available
Adopting an Integrated Pest and Pollinator Management strategy requires an evaluation of pesticide risk for pollinator species. For non-Apid species, however, the standardized ingestion assays are difficult to implement. This hinders the consideration of non-Apid species in farm management strategies and government regulatory processes. We describe...
Article
Full-text available
Evidence for global bee population declines has catalyzed a rapidly evolving area of research that aims to identify the factors involved and to effectively assess the status of pollinator populations. The term pollinator health emerged in the literature through efforts to understand causes of bee decline and colony losses, but it lacks a formal def...
Article
Full-text available
Adopting an Integrated Pest and Pollinator Management strategy requires an evaluation of pesticide risk for pollinator species. For non-Apid species, however, the standardized ingestion assays are difficult to implement. This hinders the consideration of non-Apid species in farm management strategies and government regulatory processes. We describe...
Article
Full-text available
Evidence for global bee population declines has catalyzed a rapidly evolving area of research that aims to identify the causal factors and to effectively assess the status of pollinator populations. The term pollinator health emerged through efforts to understand causes of bee decline and colony losses, but it lacks a formal definition. In this rev...
Book
Full-text available
This manual provides information and instruction for managing pests on school grounds using integrated pest management.
Article
Full-text available
Plasmodium ovale accounts for a disproportionate number of travel-related malaria cases. This parasite is understudied since there is a reliance on clinical samples. We collected a P. ovale curtisi parasite isolate from a clinical case in western Thailand and performed RNA-seq analysis on the blood stage transcriptomes. Using both de novo assembly...
Article
Evidence for global bee population declines has catalyzed a rapidly evolving area of research that aims to identify the factors involved and to effectively assess the status of pollinator populations. The term pollinator health emerged in the literature through efforts to understand causes of bee decline and colony losses, but it lacks a formal def...
Preprint
Full-text available
Insects, like all animals, are exposed to diverse environmental microbes throughout their life cycle. Yet, we know little about variation in the microbial communities associated with the majority of wild, unmanaged insect species. Here, we use a 16S rRNA gene metabarcoding approach to characterize temporal and geographic variation in the gut bacter...
Article
Full-text available
Context Bees are the most important pollinators of crops worldwide. For most bees, patches of semi-natural habitat within or adjacent to crops can provide important nesting and food resources. Despite this, land cover change is rapidly reducing the abundance of semi-natural habitat within agroecological landscapes, with potentially negative consequ...
Article
Full-text available
Understanding population genetic structure is key to developing predictions about species susceptibility to environmental change, such as habitat fragmentation and climate change. It has been theorized that life‐history traits may constrain some species in their dispersal and lead to greater signatures of population genetic structure. In this study...
Article
Full-text available
The European honey bee (Apis mellifera) is the most important managed species for agricultural pollination across the world [...]
Article
Full-text available
Management by beekeepers is of utmost importance for the health and survival of honey bee colonies. Beekeeping management practices vary from low to high intervention regarding the use of chemicals, hive manipulations, and supplemental feeding of colonies. In this study, we use quantitative data from the Bee Informed Partnership’s national survey t...
Article
Full-text available
Adopting an Integrated Pest and Pollinator Management strategy requires an evaluation of pesticide risk for pollinator species. For non-Apid species, however, the standardized ingestion assays are difficult to implement. This hinders the consideration of non-Apid species in farm management strategies and government regulatory processes. We describe...
Article
Full-text available
The power of citizen science to contribute to both science and society is gaining increased recognition, particularly in physics and biology. Although there is a long history of public engagement in agriculture and food science, the term 'citizen science' has rarely been applied to these efforts. Similarly, in the emerging field of citizen science,...
Article
Full-text available
Accurate taxonomic delimitation in ecological research is absolutely critical as studies that seek to evaluate levels of biodiversity and qualify human effects on the environment are rapidly undertaken. Coloration is a widely used morphological character for species identification through dichotomous keys. However, taxonomic identification based up...
Article
Full-text available
Tens of thousands of insects are deposited in collections every year as a result of survey-based studies that aim to investigate ecological questions. DNA-based techniques can expand the utility of these collections to explore their demographic and evolutionary history, temporal changes in their abundance, and pathogen dynamics. Using museum collec...
Article
Full-text available
Social insects live in dense groups with a high probability of disease transmission and have therefore faced strong pressures to develop defences against pathogens. For this reason, social insects have been hypothesized to invest in antimicrobial secretions as a mechanism of external immunity to prevent the spread of disease. However, empirical stu...
Article
Full-text available
Honey bees are the most important managed pollinators as they provide key ecosystem services for crop production worldwide. Recent losses of honey bee colonies in North America and Europe have demonstrated a need to develop strategies to improve their health and conserve their populations. Previously, we showed that feral honey bees—colonies that l...
Article
Full-text available
Changes in community composition are an important, but hard to predict, effect of climate change. Here,we use a wild-bee study system to test the ability of critical thermal maxima (CTmax, a measure of heat tolerance) to predict community responses to urban heat-island effects in Raleigh, NC, USA. Among 15 focal species, CTmax ranged from 44.6 to 5...
Article
Full-text available
Honeybees use a variety of defence mechanisms to reduce disease infection and spread throughout the colony. Many of these defences rely on the collective action of multiple individuals to prevent, reduce or eradicate pathogens—often referred to as ‘social immunity’. Glucose oxidase (GOX) and some antimicrobial peptides (e.g. defensin-1 or Def1) are...
Article
Full-text available
Wild cockroaches are often described as abundant and diverse insects from wet tropical zones; however, they can also be found in arid and semiarid areas. It is proposed that in these drier environments cockroach survival may dependent on its tight association with native plant species. In this work, using bait trapping and active collection methods...
Article
Full-text available
“ Each species must be known by one name only, throughout the entire extent of its range. This systematic study is the foundation upon which all the other work of seemingly more practical importance is based ” [T. B. Mitchell (1946)][1] [1]: #ref-10
Article
Full-text available
Squash was first domesticated in Mexico and is now found throughout North America (NA) along with Peponapis pruinosa, a pollen specialist bee species of the squash genus Cucurbita. The origin and spread of squash cultivation is well-studied archaeologically and phylogenetically; however, no study has documented how cultivation of this or any other...
Article
Full-text available
The R computing and statistical language community has developed a myriad of resources for conducting populations genetic analyses. However, resources for learning how to carry out population genetic analyses in R are scattered and often incomplete, which can make acquiring this skill unnecessarily difficult and time-consuming. To address this gap,...
Article
Full-text available
Social living poses challenges for individual fitness because of the increased risk of disease transmission among conspecifics. Despite this challenge, sociality is an evolutionarily successful lifestyle, occurring in the most abundant and diverse group of organisms on earth-the social insects. Two contrasting hypotheses predict the evolutionary co...
Article
Full-text available
Given the role of infectious disease in global pollinator decline, there is a need to understand factors that shape pathogen susceptibility and transmission in bees. Here we ask how urbanization affects the immune response and pathogen load of feral and managed colonies of honey bees (Apis mellifera Linnaeus), the predominant economically important...
Article
Full-text available
Bees are the primary pollinators of flowering plants in almost all ecosystems. Worldwide declines in bee populations have raised awareness about the importance of their ecological role in maintaining ecosystem functioning. The naturally strong philopatric behavior that some bee species show can be detrimental to population viability through increas...
Article
Full-text available
Neotropical rainforests sustain some of the most diverse terrestrial communities on Earth. Euglossine (or orchid) bees are a diverse lineage of insect pollinators distributed throughout the American tropics, where they provide pollination services to a staggering diversity of flowering plant taxa. Elucidating the seasonal patterns of phylogenetic as...
Data
Understanding the impact of past climatic events on the demographic history of extant species is critical for predicting species' responses to future climate change. Palaeocli-matic instability is a major mechanism of lineage diversification in taxa with low dis-persal and small geographical ranges in tropical ecosystems. However, the impact of the...
Article
Understanding the impact of past climatic events on the demographic history of extant species is critical for predicting species' responses to future climate change. Palaeocli-matic instability is a major mechanism of lineage diversification in taxa with low dis-persal and small geographical ranges in tropical ecosystems. However, the impact of the...
Article
Full-text available
Non-lethal sampling methods are of great interest for conservation genetic studies to prevent the death of individuals in populations that are threatened or in decline. With this aim, we tested a non-lethal method of partial antennae removal for DNA sampling in two euglossine bee species: Euglossa cordata and Eulaema nigrita. We validated the survi...
Article
Full-text available
The recent implementation of next-generation sequencing for the discovery of microsatellite markers has made this technology the most effective method for generating genetic markers in non-model organisms. Here, we report the de novo discovery of microsatellite markers for the solitary bee Colletes inaequalis using cloning/Sanger sequencing and dir...
Article
Full-text available
We describe and characterize eight polymorphic microsatellite loci for the orchid bee species Eulaema meriana, an abundant species and important pollinator in wet lowland forests in tropical America. We also tested the cross-species amplification of these microsatellite loci in seven other species of the genus Eulaema. For E. meriana, number of all...
Data
Slow motion footage of a radio-tagged bee (Bee ID 7) flying away in its release. Note that the animal initially drops altitude in initial take-off, but recovers to fly quickly and successfully through the complex forest. Please download and un-zip to view in Quicktime (.mp4 format). (9.34 MB ZIP)