Eric Nagy - Academia.edu (original) (raw)

Papers by Eric Nagy

BioScience, 2018

Training in science, technology, engineering, and mathematics (STEM) is a top priority for drivin... more Training in science, technology, engineering, and mathematics (STEM) is a top priority for driving economic growth and maintaining technological competitiveness. We propose that exposure to a rigorous research program as an undergraduate leads to success in a research STEM career. We compared the scientific outcomes of 88 participants from five National Science Foundation Research Experiences for Undergraduates (REU) Site programs with demographically similar applicants to assess the impact that formal, organized, and funded undergraduate summer research experiences have on participants. Our study demonstrates that REU participants are more likely to pursue a PhD program and generate significantly more valued products, including presentations, publications, and awards, when compared with applicants. We believe that key components of the program include funding for personal and professional needs; access to diverse intellectual, analytical, and field resources; and the presence of other undergraduate researchers who support each other and share their goals and interests.

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. / The MLBS weather station is located in the SW bank of the station pond. All measurements (except barometric pressure) are taken every minute. Data is averaged by the Campbell CR10 data logger and stored once ever 30 min. Barometric pressure is sampled only once every 30 min. Therefore, all data points, except barometric pressure, are averages (precipitation is the sum) of 30 measurements. Variables measured: Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, Accumulated Liquid Precipitation (rain or melted snow; actual snow accumulation is NOT measured), Quanta of Light (PAR).

Species identified on and around the Mounain Lake Biological Station

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. / The MLBS weather station is located in the SW bank of the station pond. All measurements (except barometric pressure) are taken every minute. Data is averaged by the Campbell CR10 data logger and stored once ever 30 min. Barometric pressure is sampled only once every 30 min. Therefore, all data points, except barometric pressure, are averages (precipitation is the sum) of 30 measurements. Variables measured: Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, Accumulated Liquid Precipitation (rain or melted snow; actual snow accumulation is NOT measured), Quanta of Light (PAR).

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. Permission for use of these data is granted under the conditions that MLBS is acknowledged as their source and is notified of their use. Data set contains raw meteorological data collected at the Mountain Lake Biological Station. All files are ASCII text.

Limnology and Oceanography Bulletin, 2019

Evolution, 1997

Gene exchange between locally adapted plant populations can have significant evolutionary consequ... more Gene exchange between locally adapted plant populations can have significant evolutionary consequences, including changes in genetic diversity, introduction of adaptive or maladaptive traits, disruptive of coadaptive gene complexes, and the creation of new ...

The mission of OBFS is to serve the member stations in ways that increase their effectiveness in ... more The mission of OBFS is to serve the member stations in ways that increase their effectiveness in research, education and outreach. The organization will pursue its mission in a manner that maximizes diversity, inclusiveness, sustainability and transparency. In 2005 OBFS adopted a Strategic Plan to focus its activities for the next ten years. The plan lists seven goals with associated tasks. Implementation of the goals will be the responsibility of seven Task Forces. The goals and summarized tasks are as follows: Goal One: "Conduct the business of OBFS to ensure responsible and transparent management.

Australian Journal of Ecology, 2006

Abstract Standing crops of floral nectar were measured from three species of plants: Dampiera str... more Abstract Standing crops of floral nectar were measured from three species of plants: Dampiera stricta, Goodenia bellidifolia and Aotus ericoides. The amount of nectar in nearest neighbour blossoms in nine of the 10 samples were significantly correlated with one ...

American Journal of Botany, 2000

Within the oak woodlands of California there is often a distinct shift in the botanical compositi... more Within the oak woodlands of California there is often a distinct shift in the botanical composition between the open grassland and the herbaceous understory beneath oak canopy. Botanical sampling at two woodland sites indicated that the annual grass Bromus diandrus was dominant under deciduous blue oak canopy, while a congener, Bromus hordeaceus, was dominant in open grassland. We examined the relative importance of congeneric competition and edaphic factors in creating these differences in species distribution in two separate field experiments that manipulated both congeneric and intraspecific competition, as well as soil type. We used the demographic measure of relative reproductive rate as an index of population growth. In general, demographic performance correctly predicted the distribution of the two annual grasses in the field. Our results indicate that reduced abundance of B. hordeaceus under canopy reflects the negative effects of competition with B. diandrus. In contrast, B. diandrus is little affected by competition from B. hordeaceus. The reduced abundance of B. diandrus in open grassland may result, in part, from its inability to adapt as well as B. hordeaceus to lower nutrient availability in soils of the open grassland.

The American Midland Naturalist, 1999

The release of anthers held under tension which catapult pollen onto the stigma near the end of f... more The release of anthers held under tension which catapult pollen onto the stigma near the end of floral life has been proposed as a mechanism for autonomous selffertilization in normally outcrossing Kalmia latifolia. We examined the importance of this delayed autonomous self-pollination to fruit production and the efficiency of the pollen deposition mechanism under field conditions. By comparing intact open-pollinated flowers with emasculated flowers we found that autonomous self-pollination did not increase fruit production. To evaluate the efficiency of the catapult mechanism of selfing, we compared the relative fruit production of flowers that were hand-pollinated with self-pollen with those that self-pollinated spontaneously. Fruit set was higher in hand-selfed flowers than in the autonomously-selfed flowers, indicating that the natural mechanism of selfing is inefficient. Through the observation of flowers protected from pollinators we determined the natural pattern of floral phenology and anther release. The effect of timing of autonomous selfing on fruit production was assessed by manipulating the time of anther release. The timing of selfing is not related to fruit production and varies widely among flowers. Although autonomous selfing did not contribute to fruit production under natural conditions, it can assure reproduction in the absence of pollinators.

BioScience, 2009

Innovative uses of advanced sensors and sensor networks are starting to be translated into new ec... more Innovative uses of advanced sensors and sensor networks are starting to be translated into new ecological knowledge. These sensors are providing a new set of "eyes" through which researchers may observe the world in new ways, extend spatial and temporal scales of observation, more accurately estimate what cannot be observed, and, most important, obtain unexpected results or develop new paradigms. Automated sensors are widely deployed by members of the Organization of Biological Field Stations, yet some needs-particularly for chemical and biological sensors-are not currently being met. There are additional opportunities for developing sensor networks at synoptic, regional, continental, and global scales. Although we are seeing more uses of sensor systems and, in particular, sensor networks, the opportunities for these systems are just beginning to be realized, with much more work to be done, including formulation of new questions, development of new sensors, better software, and new ways for researchers to work together across large distances.

The American Midland Naturalist, 1999

The release of anthers held under tension which catapult pollen onto the stigma near the end of f... more The release of anthers held under tension which catapult pollen onto the stigma near the end of floral life has been proposed as a mechanism for autonomous selffertilization in normally outcrossing Kalmia latifolia. We examined the importance of this delayed autonomous self-pollination to fruit production and the efficiency of the pollen deposition mechanism under field conditions. By comparing intact open-pollinated flowers with emasculated flowers we found that autonomous self-pollination did not increase fruit production. To evaluate the efficiency of the catapult mechanism of selfing, we compared the relative fruit production of flowers that were hand-pollinated with self-pollen with those that self-pollinated spontaneously. Fruit set was higher in hand-selfed flowers than in the autonomously-selfed flowers, indicating that the natural mechanism of selfing is inefficient. Through the observation of flowers protected from pollinators we determined the natural pattern of floral phenology and anther release. The effect of timing of autonomous selfing on fruit production was assessed by manipulating the time of anther release. The timing of selfing is not related to fruit production and varies widely among flowers. Although autonomous selfing did not contribute to fruit production under natural conditions, it can assure reproduction in the absence of pollinators.

The mission of OBFS is to serve the member stations in ways that increase their effectiveness in ... more The mission of OBFS is to serve the member stations in ways that increase their effectiveness in research, education and outreach. The organization will pursue its mission in a manner that maximizes diversity, inclusiveness, sustainability and transparency.

BioScience, 2018

Training in science, technology, engineering, and mathematics (STEM) is a top priority for drivin... more Training in science, technology, engineering, and mathematics (STEM) is a top priority for driving economic growth and maintaining technological competitiveness. We propose that exposure to a rigorous research program as an undergraduate leads to success in a research STEM career. We compared the scientific outcomes of 88 participants from five National Science Foundation Research Experiences for Undergraduates (REU) Site programs with demographically similar applicants to assess the impact that formal, organized, and funded undergraduate summer research experiences have on participants. Our study demonstrates that REU participants are more likely to pursue a PhD program and generate significantly more valued products, including presentations, publications, and awards, when compared with applicants. We believe that key components of the program include funding for personal and professional needs; access to diverse intellectual, analytical, and field resources; and the presence of other undergraduate researchers who support each other and share their goals and interests.

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. / The MLBS weather station is located in the SW bank of the station pond. All measurements (except barometric pressure) are taken every minute. Data is averaged by the Campbell CR10 data logger and stored once ever 30 min. Barometric pressure is sampled only once every 30 min. Therefore, all data points, except barometric pressure, are averages (precipitation is the sum) of 30 measurements. Variables measured: Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, Accumulated Liquid Precipitation (rain or melted snow; actual snow accumulation is NOT measured), Quanta of Light (PAR).

Species identified on and around the Mounain Lake Biological Station

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. / The MLBS weather station is located in the SW bank of the station pond. All measurements (except barometric pressure) are taken every minute. Data is averaged by the Campbell CR10 data logger and stored once ever 30 min. Barometric pressure is sampled only once every 30 min. Therefore, all data points, except barometric pressure, are averages (precipitation is the sum) of 30 measurements. Variables measured: Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, Accumulated Liquid Precipitation (rain or melted snow; actual snow accumulation is NOT measured), Quanta of Light (PAR).

The Mountain Lake Biological Station is a research and teaching facility of the University of Vir... more The Mountain Lake Biological Station is a research and teaching facility of the University of Virginia located in the Allegheny Mountains of southwestern Virginia in a deciduous hardwood forest at an elevation of 1,160 meters. Permission for use of these data is granted under the conditions that MLBS is acknowledged as their source and is notified of their use. Data set contains raw meteorological data collected at the Mountain Lake Biological Station. All files are ASCII text.

Limnology and Oceanography Bulletin, 2019

Evolution, 1997

Gene exchange between locally adapted plant populations can have significant evolutionary consequ... more Gene exchange between locally adapted plant populations can have significant evolutionary consequences, including changes in genetic diversity, introduction of adaptive or maladaptive traits, disruptive of coadaptive gene complexes, and the creation of new ...

The mission of OBFS is to serve the member stations in ways that increase their effectiveness in ... more The mission of OBFS is to serve the member stations in ways that increase their effectiveness in research, education and outreach. The organization will pursue its mission in a manner that maximizes diversity, inclusiveness, sustainability and transparency. In 2005 OBFS adopted a Strategic Plan to focus its activities for the next ten years. The plan lists seven goals with associated tasks. Implementation of the goals will be the responsibility of seven Task Forces. The goals and summarized tasks are as follows: Goal One: "Conduct the business of OBFS to ensure responsible and transparent management.

Australian Journal of Ecology, 2006

Abstract Standing crops of floral nectar were measured from three species of plants: Dampiera str... more Abstract Standing crops of floral nectar were measured from three species of plants: Dampiera stricta, Goodenia bellidifolia and Aotus ericoides. The amount of nectar in nearest neighbour blossoms in nine of the 10 samples were significantly correlated with one ...

American Journal of Botany, 2000

Within the oak woodlands of California there is often a distinct shift in the botanical compositi... more Within the oak woodlands of California there is often a distinct shift in the botanical composition between the open grassland and the herbaceous understory beneath oak canopy. Botanical sampling at two woodland sites indicated that the annual grass Bromus diandrus was dominant under deciduous blue oak canopy, while a congener, Bromus hordeaceus, was dominant in open grassland. We examined the relative importance of congeneric competition and edaphic factors in creating these differences in species distribution in two separate field experiments that manipulated both congeneric and intraspecific competition, as well as soil type. We used the demographic measure of relative reproductive rate as an index of population growth. In general, demographic performance correctly predicted the distribution of the two annual grasses in the field. Our results indicate that reduced abundance of B. hordeaceus under canopy reflects the negative effects of competition with B. diandrus. In contrast, B. diandrus is little affected by competition from B. hordeaceus. The reduced abundance of B. diandrus in open grassland may result, in part, from its inability to adapt as well as B. hordeaceus to lower nutrient availability in soils of the open grassland.

The American Midland Naturalist, 1999

The release of anthers held under tension which catapult pollen onto the stigma near the end of f... more The release of anthers held under tension which catapult pollen onto the stigma near the end of floral life has been proposed as a mechanism for autonomous selffertilization in normally outcrossing Kalmia latifolia. We examined the importance of this delayed autonomous self-pollination to fruit production and the efficiency of the pollen deposition mechanism under field conditions. By comparing intact open-pollinated flowers with emasculated flowers we found that autonomous self-pollination did not increase fruit production. To evaluate the efficiency of the catapult mechanism of selfing, we compared the relative fruit production of flowers that were hand-pollinated with self-pollen with those that self-pollinated spontaneously. Fruit set was higher in hand-selfed flowers than in the autonomously-selfed flowers, indicating that the natural mechanism of selfing is inefficient. Through the observation of flowers protected from pollinators we determined the natural pattern of floral phenology and anther release. The effect of timing of autonomous selfing on fruit production was assessed by manipulating the time of anther release. The timing of selfing is not related to fruit production and varies widely among flowers. Although autonomous selfing did not contribute to fruit production under natural conditions, it can assure reproduction in the absence of pollinators.

BioScience, 2009

Innovative uses of advanced sensors and sensor networks are starting to be translated into new ec... more Innovative uses of advanced sensors and sensor networks are starting to be translated into new ecological knowledge. These sensors are providing a new set of "eyes" through which researchers may observe the world in new ways, extend spatial and temporal scales of observation, more accurately estimate what cannot be observed, and, most important, obtain unexpected results or develop new paradigms. Automated sensors are widely deployed by members of the Organization of Biological Field Stations, yet some needs-particularly for chemical and biological sensors-are not currently being met. There are additional opportunities for developing sensor networks at synoptic, regional, continental, and global scales. Although we are seeing more uses of sensor systems and, in particular, sensor networks, the opportunities for these systems are just beginning to be realized, with much more work to be done, including formulation of new questions, development of new sensors, better software, and new ways for researchers to work together across large distances.

The American Midland Naturalist, 1999

The release of anthers held under tension which catapult pollen onto the stigma near the end of f... more The release of anthers held under tension which catapult pollen onto the stigma near the end of floral life has been proposed as a mechanism for autonomous selffertilization in normally outcrossing Kalmia latifolia. We examined the importance of this delayed autonomous self-pollination to fruit production and the efficiency of the pollen deposition mechanism under field conditions. By comparing intact open-pollinated flowers with emasculated flowers we found that autonomous self-pollination did not increase fruit production. To evaluate the efficiency of the catapult mechanism of selfing, we compared the relative fruit production of flowers that were hand-pollinated with self-pollen with those that self-pollinated spontaneously. Fruit set was higher in hand-selfed flowers than in the autonomously-selfed flowers, indicating that the natural mechanism of selfing is inefficient. Through the observation of flowers protected from pollinators we determined the natural pattern of floral phenology and anther release. The effect of timing of autonomous selfing on fruit production was assessed by manipulating the time of anther release. The timing of selfing is not related to fruit production and varies widely among flowers. Although autonomous selfing did not contribute to fruit production under natural conditions, it can assure reproduction in the absence of pollinators.

The mission of OBFS is to serve the member stations in ways that increase their effectiveness in ... more The mission of OBFS is to serve the member stations in ways that increase their effectiveness in research, education and outreach. The organization will pursue its mission in a manner that maximizes diversity, inclusiveness, sustainability and transparency.