Laura A. Burkle's research while affiliated with Montana State University and other places
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Publications (38)
Background
Orchid bees are abundant and widespread in the Neotropics, where males are important pollinators of orchids they visit to collect fragrant chemicals later used to court females. Assemblages of orchid bees have been intensively surveyed in parts of Central America, but less so in Belize, where we studied them during the late-wet and early...
While wild pollinators play a key role in global food production, their assessment is currently missing from the most commonly used environmental impact assessment method, Life Cycle Assessment (LCA). This is mainly due to constraints in data availability and compatibility with LCA inventories. To target this gap, relative pollinator abundance esti...
Individual plant species play valuable roles in meeting restoration goals for pollinators. However, the selection of plant species for pollinator restoration is rarely informed using empirical evidence and is usually developed in agroecosystems, which experience frequent human interventions to ensure plant success as compared to seminatural ecosyst...
Premise:
Arbuscular mycorrhizal fungi (AMF) can strongly influence host plant vegetative growth, but less is known about AMF effects on other plant traits, the relative impacts of AMF on vegetative growth versus floral traits, or AMF-induced intraspecific variation in traits.
Methods:
In an experimental greenhouse study, we inoculated seven spec...
1. Animal ecology and evolution are shaped by environmental perturbations, which are undergoing unprecedented alterations due to climate change. Fire is one such perturbation that causes significant disruption by causing mortality and altering habitats and resources for animals. Fire regimes are changing on a global scale, but the effects of these...
Disturbances alter biodiversity via their specific characteristics, including severity and extent in the landscape, which act at different temporal and spatial scales. Biodiversity response to disturbance also depends on the community characteristics and habitat requirements of species. Untangling the mechanistic interplay of these factors has guid...
Megachile rotundata (F.) is an important pollinator of alfalfa in the United States. Enhancing landscapes with wildflowers is a primary strategy for conserving pollinators and may improve the sustainability of M. rotundata. Changing cold storage temperatures from a traditionally static thermal regime (STR) to a fluctuating thermal regime (FTR) impr...
Climate change is shifting phenology globally, altering when and how species respond to environmental cues such as temperature and the timing of snowmelt. These shifts may result in phenological mismatches among interacting species, creating cascading effects on community and ecosystem dynamics. Using passive warming structures and snow removal, we...
Intraspecific trait variation has tremendous importance for species interactions and community composition. A major source of intraspecific trait variation is an organism’s developmental stage; however, timing is rarely considered in studies of the ecological effects of intraspecific variation. Here, we examine the role of time in the ecology of in...
Public lands face growing demands to provide ecosystem services, while protecting species of conservation concern, like insect pollinators. Insect pollinators are critical for the maintenance of biodiversity and ecosystem function, but it is unclear how management of public lands influence pollinator conservation. We found 63 studies investigating...
The yield of many agricultural crops depends on pollination services provided by wild and managed bees, many of which are experiencing declines due to factors such as reductions in floral resources. Thus, improving pollinator habitat on farmlands using management strategies like planting wildflower strips is vital for wild bee conservation and sust...
International and national initiatives aim to conserve at least 30% of lands and waters by 2030. To safeguard biodiversity, conservation actions must be distributed in places that represent ecosystem and species diversity. Various methods of prioritizing sites for conservation have been used in local and global assessments. However, the performance...
Despite evidence of pollinator declines from many regions across the globe, the threat this poses to plant populations is not clear because plants can often produce seeds without animal pollinators. Here, we quantify pollinator contribution to seed production by comparing fertility in the presence versus the absence of pollinators for a global data...
Climate change can disrupt plant-pollinator interactions when shifts in the timing of pollinator activity and flowering occur unequally (i.e., phenological asynchrony). Phenological asynchrony between spring-emerging solitary bees and spring-flowering plants may cause bees to experience food deprivation that can affect their reproductive success. H...
1. Spatial connections between habitats are important to allow movement of organisms across heterogeneous landscapes with diverse disturbances and management. Similarly, species providing functional connections between subnetworks of species interactions (modules) are important for ecosystem services across these landscapes. These functional connec...
Positive interactions are sensitive to human activities, necessitating synthetic approaches to elucidate broad patterns and predict future changes if these interactions are altered or lost. General understanding of freshwater positive interactions has been far outpaced by knowledge of these important relationships in terrestrial and marine ecosyste...
Most studies of plant–animal mutualistic networks have come from a temporally static perspective. This approach has revealed general patterns in network structure, but limits our ability to understand the ecological and evolutionary processes that shape these networks and to predict the consequences of natural and human‐driven disturbance on specie...
Understanding how abiotic disturbance and biotic interactions determine pollinator and flowering‐plant diversity is critically important given global climate change and widespread pollinator declines. To predict responses of pollinators and flowering‐plant communities to changes in wildfire disturbance, a mechanistic understanding of how these two...
Honey bees (Apis mellifera) are important pollinators of plants, including those that produce nut, fruit, and vegetable crops. Therefore, high annual losses of managed honey bee colonies in the United States and many other countries threaten global agriculture. Honey bee colony deaths have been associated with multiple abiotic and biotic factors, i...
Land use change, by disrupting the co-evolved interactions between plants and their pollinators, could be causing plant reproduction to be limited by pollen supply. Using a phylogenetically controlled meta-analysis on over 2200 experimental studies and more than 1200 wild plants, we ask if land use intensification is causing plant reproduction to b...
Floral volatile organic compounds (VOCs) are traits that influence plant interactions with pollinators and other species. Interspecific and intraspecific variation in traits can strongly influence community and ecosystem processes. Yet, we lack an understanding of patterns of variation in floral VOCs among individuals of a species and across specie...
The study of mutualistic interaction networks has led to valuable insights into ecological and evolutionary processes. However, our understanding of network structure may depend upon the temporal scale at which we sample and analyze network data. To date, we lack a comprehensive assessment of the temporal scale‐dependence of network structure acros...
Biodiversity loss is a hallmark of our times, but predicting its consequences is challenging. Ecological interactions form complex networks with multiple direct and indirect paths through which the impacts of an extinction may propagate. Here we show that accounting for these multiple paths connecting species is necessary to predict how extinctions...
High-severity wildfires, which can homogenize floral communities, are becoming more common relative to historic mixed-severity fire regimes in the Northern Rockies of the U.S. High-severity wildfire could negatively affect bumble bees, which are typically diet generalists, if floral species of inadequate pollen quality dominate the landscape post-b...
Wildflower strips are a management practice increasingly used to provide floral resources to wild bees in agroecosystems. Yet, despite known spatiotemporal variation in wild bee communities, the degree to which different wildflower strip species consistently support wild bee communities is poorly understood. Additionally, whether such consistency i...
Alien species can drastically disrupt ecological processes such as those involving plant‐pollinator interactions, performing central roles that may affect the structure of native pollination networks. However, most studies to date have focused on a single trophic level of alien species, evaluating either the impacts of an alien pollinator or an ali...
Abstract Bees require distinct foraging and nesting resources to occur in close proximity. However, spatial and temporal patterns in the availability and quantity of these resources can be affected by disturbances like wildfire. The potential for spatial or temporal separation of foraging and nesting resources is of particular concern for solitary...
The structure of ecological interactions is commonly understood through analyses of interaction networks. However, these analyses may be sensitive to sampling biases with respect to both the interactors (the nodes of the network) and interactions (the links between nodes), because the detectability of species and their interactions is highly hetero...
1.While the importance of floral odors for pollinator attraction relative to visual cues is increasingly appreciated, how they structure community‐level plant‐pollinator interactions is poorly understood. Elucidating the functional roles of flowering plant species with respect to their floral volatile organic compounds (VOCs) and how those roles va...
The effects of climate change on solitary bee species, the most diverse and abundant group of wild pollinators, remain poorly understood, limiting our ability to forecast consequences for bee-plant interactions and pollination services. Life history traits, such as overwintering life stage, sex, and body size may influence solitary bee responses to...
Improving pollinator habitat on farmlands is needed to further wild bee conservation and to sustain crop pollination in light of relationships between global declines in pollinators and reductions in floral resources. One management strategy gaining much attention is the use of wildflower strips planted alongside crops to provide supplemental flora...
Wildfire regimes are changing in the western United States, yet the ways in which wildfires influence native bees, the resources they depend on for food and nesting, or the traits that influence their interactions with plants are poorly understood. In burned and unburned areas in Montana, USA, we investigated the abundance and diversity of native b...
Industrialized farming practices result in simplified agricultural landscapes, reduced biodiversity, and degraded species-interaction networks. Thus far, most research assessing the combined effects of farming systems and landscape complexity on beneficial insects has been conducted in relatively diversified and mesic systems and may not represent...
•The role of pollination in the success of invasive plants needs to be understood because invasives have substantial effects on species interactions and ecosystem functions. Previous research has shown both that reproduction of invasive plants is often pollen limited and that invasive plants can have high seed production motivating the questions: h...
Citations
... Nevertheless, because many pharmaceutical compounds persist in the environment (Kwon and Armbrust, 2006;Puckowski et al., 2016), fish are often exposed to pharmaceuticals across several life stages and over periods that exceed typical study durations. Given that an organism's developmental stage can be a major source of intraspecific trait variation (Cope et al., 2022), generalising the effects of pharmaceutical exposure from one life stage to the other may not be straightforward. In particular, sensitivity to chemicals and how animals respond to exposure could differ substantially across the exposure period and between life stages, and could compromise our accuracy to predict the impact of pharmaceutical pollution. ...
... Over the last few decades, substantial progress has been made to track the response of pollinator diversity to wildfires (e.g., Adedoja et al., 2019;Burkle et al., 2019;Carbone et al., 2019Carbone et al., , 2017Lazarina et al., 2019;Mason et al., 2021;Moretti et al., 2009;Peralta et al., 2017Peralta et al., , 2001Potts et al., 2003;Viljur et al., 2022). This work has shown that fire can affect insect pollinators in numerous ways other than via direct mortality (Brown et al., 2017). ...
... Pollination is a vital landscape service making its long-term stability a priority for socio-ecological-economic sustainability (Delphia et al., 2022). In this study the spatial and temporal analyses have helped in giving a more complete indication in the assessment of landscape services where different socioecological factors can play a crucial role. ...
... Other management activities in seminatural ecosystems -like prescribed burning, thinning, and invasive species removalcan also have positive effects on pollinators (Glenny et al. 2022a) via increased early seral stage habitat rich in floral and nesting resources, but post-management restoration projects may favor revegetating areas with grasses, which reduce erosion and outcompete invasive species but provide few benefits to pollinators. In addition, unlike agroecosystems, restoration projects in seminatural ecosystems are frequently conducted in remote areas, which impedes human interventions to ensure plant success, and natural disturbances like wildfire or drought select against the establishment of some plant species. ...
... Generally, the nicheand neutral processes are not mutually exclusive but contribute both to assembly processes (van der Plas et al. 2015;Hauffe et al., 2016), and the relative importance of these two processes in community assembly depends on the scale and other characteristics of the study system (Wang et al. 2012;Yang et al. 2014). However, despite long-term interest in patterns of niche-and neutral processes, it has yet to be established whether and how consumer community dissimilarity (i.e., beta-diversit y) depends on producer community dissimilarity (Burkle, Myers & Belote 2016;Myers & LaManna 2016;Burkle, Belote & Myers 2022). Community studies that consider multiple trophic levels may provide key insights into mechanisms of species coexistence, biodiversity maintenance, and ecosystem functions in response to global change (Thompson et al. 2015;Eisenhauer et al. 2019). ...
... Thus, for invertebrates, it will be important to know how the biota in wetlands with changing hydroperiods contribute to turnover of taxa and overall diversity of a region (Epele et al., 2022;McLean et al., 2020McLean et al., , 2022. Knowledge of how specific wetland ecotypes contribute to biodiversity patterns could lead to conservation interventions being more efficacious (Belote et al., 2021;Bowgen et al., 2022). ...
... Insect pollinators play a key role in domestic crop production and the maintenance of wild plant communities worldwide (Corbet et al. 1991;Klein et al. 2007;Hung et al. 2018). Rodger et al. (2021) estimate that the seed production of 79% of flowering plant species benefit to some degree from animal-mediated pollination. Pollination services contribute greatly to the world economy, with their contribution to global crop production valued at 235-577 billion US dollars per year (IPBES 2016). ...
... Secondly, studies could also determine whether physiological biomarkers that were already found to be affected by environmental variables are also related to some component of individual fitness (survival, reproductive performances). For instance, body size in bees, which is highly correlated to the amount of food ingested (during larval stage) and therefore to the abundance of floral resources, has been found to be positively related to female fecundity in different bee species (Bosch and Vicens, 2006;O'Neill et al., 2014;Slominski and Burkle, 2021). These relationships highlight body size as a promising biomarker for monitoring population trends. ...
... Conversely, logging promotes the colonization of disturbed areas by generalist species, and species associated with more open habitats and floral resources Heil and Burkle, 2018;Phillips et al., 2006;Sire et al., 2022;, and consequently induces shifts in the composition of arthropod communities (Wermelinger et al., 2017). Salvage logging can also disturb ecological relationships, such as species-resource relationships (Godeau et al., 2020) or functional networks between species (e.g., plant-pollinator interactions, Burkle et al., 2021), and can result in an extinction debt (i.e. a delay between the loss of a habitat and the local extinction of the species associated with that habitat; . At a landscape scale, logging increases habitat diversity (undisturbed forests, disturbed and disturbed-harvest), and promotes the gamma-diversity of arthropod communities (Phillips et al., 2006;Wermelinger et al., 2017). ...
... Meta-analysis is a widely used approach in ecology Anderson et al., 2021), which often explicitly sets out to test for and explain context dependence in ecological effects (e.g. Leal & Peixoto, 2017;Marino, Romero & Farjalla, 2018;Albertson et al., 2021). The consequences of asymmetric investigation for ecological inference have yet to be evaluated. ...