U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Author "David H. Branson" Remove constraint Author: "David H. Branson"
Start Over

Search

15  Search Results

1 - 15 of 15
Number of results to display per page

Search Results

1. Grasshopper feeding preference affects cascading effects of predators on plant biomass in a mixed-grass prairie

Author:
David H. Branson
Source:
Food webs 2022 v.31 pp. e00224
ISSN:
2352-2496
Subject:
biomass production; forbs; grasses; grasshoppers; herbivores; invertebrates; mixed-grass prairies; phytomass; regrowth
Abstract:
... The importance of cascading effects of grasshopper predators on plant biomass involving grasshoppers in grassland ecosystems appears variable. A constraint of most grasshopper trophic cascade studies to date is that they examine responses of a single grasshopper species, while grasshopper feeding guilds could affect whether a trophic cascade is observed. As grasslands are grass dominated, grass fe ...
DOI:
10.1016/j.fooweb.2022.e00224

2. Grasshoppers exhibit asynchrony and spatial non-stationarity in response to the El Niño/Southern and Pacific Decadal Oscillations

Author:
David H. Branson,   et al.   ; John M. Humphreys; Robert B. Srygley; Douglas Lawton; Amy R. Hudson;     Show all 5 Authors
Source:
Ecological modelling 2022 v.471 pp. 110043
ISSN:
0304-3800
Subject:
El Nino; climate; data collection; ecosystems; grasshoppers; models; rangelands; surface water temperature; Pacific Ocean; Western United States
Abstract:
... Grasshoppers are preeminent herbivores and perhaps the most significant rangeland pests in the United States (US). Despite the important ecosystem functions they provide, grasshopper populations often obtain densities that cause significant economic harm to grazing operations and agricultural production. Although numerous studies conducted at the level of individual field sites have examined poten ...
DOI:
10.1016/j.ecolmodel.2022.110043

3. Grasshopper populations respond similarly to multiple moderate intensity livestock grazing treatments

Author:
David H. Branson
Source:
Journal of orthoptera research 2020 v.29 no.1 pp. 67-69
ISSN:
1937-2426
Subject:
Orthoptera; continuous grazing; grasshoppers; livestock; mixed-grass prairies; species diversity; Great Plains region
Abstract:
... Livestock grazing frequently affects grasshopper populations, but no prior studies have simultaneously examined a wide range of moderate intensity livestock grazing treatments in the Northern Great Plains. Grasshopper densities varied significantly between years, but five moderate grazing treatments, including both rotational and continuous grazing treatments, did not differentially affect grassho ...
DOI:
10.3897/jor.29.46966

4. Influence of cold temperature and exposure time on egg overwintering survival in the white-whiskered grasshopper (Orthoptera: Acrididae)

Author:
David H. Branson
Source:
Journal of orthoptera research 2020 v.29 no.1 pp. 63-65
ISSN:
1937-2426
Subject:
cold; egg masses; eggs; exposure duration; grasshoppers; hatching; overwintering; snow; temperature
Abstract:
... The effect of cold temperatures and exposure time on egg survival and hatching success were examined in the white-whiskered grasshopper, Ageneotettixdeorum. Temperature treatments ranged from 4°C to -35°C, with treatment times ranging from 48 to 240 hours. Both decreasing temperatures and exposure time negatively affected egg survival, with a temperature below -25°C being lethal. Similar lethal te ...
DOI:
10.3897/jor.29.46967

5. Functional and taxonomic diversity of grasshoppers differentially shape above‐ and below‐ground communities and their function

Author:
David H. Branson,   et al.   ; Jane M. Lucas; Jayne Jonas; Angela N. Laws; Steven C. Pennings; Chelse M. Prather; Michael S. Strickland;     Show all 7 Authors
Source:
Functional ecology 2021 v.35 no.1 pp. 167-180
ISSN:
0269-8463
Subject:
Orthoptera; aboveground biomass; bacterial communities; cages; community structure; diet; ecosystems; fungal communities; grasshoppers; grasslands; herbivores; information; microbial biomass; nitrogen fertilizers; nutrient availability; phytomass; plant communities; prediction; shape; soil microorganisms; soil nutrients; soil pH; species diversity; taxonomy
Abstract:
... Herbivores are important drivers in both above‐ and below‐ground ecosystems. Despite their importance, studies of herbivores often focus on the effects of individual species, potentially missing the effects of herbivore diversity. Here we examine how orthopteran herbivore species and functional (i.e. diet) diversity interact with nutrient availability to shape above‐ and below‐ground ecosystems. W ...
DOI:
10.1111/1365-2435.13682

6. Tri-trophic interactions are resilient to large shifts in precipitation levels in a wheat agroecosystem

Author:
David H. Branson,   et al.   ; Tatyana A. Rand; Debra K. Waters; Robert B. Srygley;     Show all 4 Authors
Source:
Agriculture, ecosystems & environment 2020 v.301 pp. 106981
ISSN:
0167-8809
Subject:
Bracon; Cephus cinctus; Triticum aestivum; agroecosystems; atmospheric precipitation; biological control agents; climatic factors; factor analysis; field experimentation; grain yield; growing season; host-parasite relationships; insect infestations; insect pests; natural enemies; parasitic wasps; parasitism; phytophagous insects; plant pests; plant-insect relations; tritrophic interactions; wheat
Abstract:
... Changing climatic conditions can fundamentally alter the interactions between species with important implications for agriculture. The impacts of shifts in precipitation on trophic interactions have been understudied relative to other climate drivers. We carried out field experiments to examine how precipitation, attack by parasitoid wasps (Bracon cephi (Gahan))(Hymenoptera: Braconidae) and their ...
Handle:
10113/6985418
DOI:
10.1016/j.agee.2020.106981

7. Effects of Altered Seasonality of Precipitation on Grass Production and Grasshopper Performance in a Northern Mixed Prairie

Author:
David H. Branson
Source:
Environmental entomology 2017 v.46 no.3 pp. 589-594
ISSN:
1938-2936
Subject:
Melanoplus sanguinipes; atmospheric precipitation; climate; climate change; drought; ecosystems; grasses; grasshoppers; herbivores; nitrogen content; phenology; phytomass; plant response; population density; population dynamics; prairies; prediction; seasonal variation; summer
Abstract:
... Climatic changes are leading to differing patterns and timing of precipitation in grassland ecosystems, with the seasonal timing of precipitation affecting plant biomass and plant composition. No previous studies have examined how drought seasonality affects grasshopper performance and the impact of herbivory on vegetation. We modified seasonal patterns of precipitation and grasshopper density in ...
Handle:
10113/5700686
DOI:
10.1093/ee/nvx053

8. Grasshopper species composition shifts following a severe rangeland grasshopper outbreak

Author:
David H. Branson
Source:
Journal of orthoptera research 2017 v.26 no.1 pp. 7-10
ISSN:
1937-2426
Subject:
Acrididae; grasshoppers; monitoring; population dynamics; prediction; rangelands; species abundance; vegetation; Western United States
Abstract:
... Little is known about how grasshopper species abundances shift during and following severe outbreaks, as sampling efforts usually end when outbreaks subside. Grasshopper densities, species composition and vegetation have infrequently been sampled during and after a severe outbreak in the western U.S., which is needed to better understand the cause of outbreaks and population declines. In this stud ...
DOI:
10.3897/jor.26.14542

9. Effects of grasshoppers on prairies: Herbivore composition matters more than richness in three grassland ecosystems

Author:
David H. Branson,   et al.   ; Angela N. Laws; Chelse M. Prather; Steven C. Pennings;     Show all 4 Authors
Source:
journal of animal ecology 2018 v.87 no.6 pp. 1727-1737
ISSN:
0021-8790
Subject:
Orthoptera; environmental factors; field experimentation; grasshoppers; mixed-grass prairies; phytomass; phytophagous insects; plant communities; species richness; tallgrass prairies; terrestrial ecosystems
Abstract:
... Understanding how biodiversity affects ecosystem processes is a key question in ecology. Previous research has found that increasing plant diversity often enhances many ecosystem processes, but less is known about the role of consumer diversity to ecosystem processes, especially in terrestrial ecosystems. Furthermore, we do not know how general biodiversity responses are among ecosystem types. We ...
Handle:
10113/6152997
DOI:
10.1111/1365-2656.12897
CHORUS:
10.1111/1365-2656.12897

10. Drought Impacts on Competition in Phoetaliotes nebrascensis (Orthoptera Acrididae) in a Northern Mixed Grassland

Author:
David H. Branson
Source:
Environmental entomology 2016 v.45 no.2 pp. 492-499
ISSN:
1938-2936
Subject:
Phoetaliotes nebrascensis; atmospheric precipitation; biocenosis; body size; cages; climate change; drought; environmental factors; food availability; grasshoppers; grasslands; insect reproduction; interspecific competition; intraspecific competition; males; plant stress; population dynamics; reproductive traits; summer; Montana
Abstract:
... Global climate change is predicted to significantly modify patterns of precipitation, making it critical to develop a better understanding of how this will modify biotic interactions. Short-term to decadal-scale weather patterns can impact grasshopper population dynamics, but drought impacts on grasshoppers have rarely been studied in manipulative experiments. A cage experiment was conducted in ea ...
Handle:
10113/5695477
DOI:
10.1093/ee/nvv225

11. Grasshopper Responses to Fire and Postfire Grazing in the Northern Great Plains Vary Among Species

Author:
David H. Branson,   et al.   ; Lance T. Vermeire;     Show all 2 Author
Source:
Rangeland ecology & management 2016 v.69 no.2 pp. 144-149
ISSN:
1550-7424
Subject:
Ageneotettix deorum; biomass; burning; fire ecology; forage; grasshoppers; grazing intensity; range management; reproduction; summer; vegetation; wildfires; Great Plains region; Montana
Abstract:
... Rangeland management practices such as burning and grazing may affect the development, survival, and reproduction of grasshopper populations. Experiments in the northern Great Plains that examine effects of fire and grazing utilization on grasshoppers are lacking. As part of a larger study examining vegetation responses to late summer fire and postfire grazing utilization in semiarid mixed prairie ...
Handle:
10113/62127
DOI:
10.1016/j.rama.2015.10.005

12. Oilfield Reclamation Recovers Productivity but not Composition of Arthropod Herbivores and Predators

Author:
David H Branson,   et al.   ; Zachary A Sylvain; Erin K Espeland; Tatyana A Rand; Natalie M West;     Show all 5 Authors
Source:
Environmental entomology 2019 v.48 no.2 pp. 299-308
ISSN:
1938-2936
Subject:
Melanoplus femurrubrum; Salticidae; arthropod communities; arthropods; biomass; community structure; ecosystems; energy; grasslands; herbivores; oil fields; plant communities; plant pests; plant response; predators; rangelands; species abundance; Great Plains region; North Dakota
Abstract:
... Arthropods are key components of grassland ecosystems. Though arthropod communities are often strongly influenced by plant communities, plants and arthropods may respond differently to disturbance. Studying plant responses alone may, therefore, not fully capture altered ecosystem dynamics; thus multi-trophic approaches are critical to fully understand ecosystem responses to disturbance. Energy dev ...
DOI:
10.1093/ee/nvz012

13. Insect herbivory and vertebrate grazing impact food limitation and grasshopper populations during a severe outbreak

Author:
David H. Branson,   et al.   ; Marshall A. Haferkamp;     Show all 2 Author
Source:
Ecological entomology 2014 v.39 no.1 pp. 371-381
ISSN:
1365-2311
Subject:
biomass; cages; experimental design; foods; grasshoppers; grasslands; grazing; interspecific competition; land use; phytophagous insects; population density; population dynamics; sheep
Abstract:
... Interspecific competition between distantly related herbivores, as well as between large vertebrate herbivores and phytophagous insects, has received little attention. Livestock grazing is the dominant land use in western North American grasslands, where phytophagous insects can be the dominant herbivore. Large scale studies have examined interactions between livestock grazing and grasshoppers, bu ...
Handle:
10113/58796
DOI:
10.1111/een.12114

14. Heat Dosage and Oviposition Depth Influence Egg Mortality of Two Common Rangeland Grasshopper Species

Author:
David H. Branson,   et al.   ; Lance T. Vermeire;     Show all 2 Author
Source:
Rangeland ecology & management 2013 v.66 no.1 pp. 110-113
ISSN:
1550-7424
Subject:
Aulocara elliotti; egg masses; eggs; fire intensity; grasshoppers; heat transfer; heat treatment; mortality; population density; rangelands; wildfires
Abstract:
... Rangeland fire is a common naturally occurring event and management tool, with the amount and structure of biomass controlling transfer of heat belowground. Temperatures that grasshopper eggs are exposed to during rangeland fires are mediated by species-specific oviposition traits. This experiment examined egg mortality in two slant-faced grasshopper species with differing oviposition traits, name ...
Handle:
10113/55549
DOI:
10.2111/REM-D-11-00187.1

15. Life-history Responses of Ageneotettix deorum (Scudder) (Orthoptera: Acrididae) to Host Plant Availability and Population Density

Author:
David H. Branson
Source:
Journal of the Kansas Entomological Society 2006 v.79 no.2 pp. 146-155
ISSN:
0022-8567
Subject:
grasshoppers; life history; foods; food plants; egg masses; Ageneotettix deorum; food availability; population density; egg production; nutrients; eggs; vegetation
Abstract:
... The effects of variation in host plant availability and population densities on reproductive allocation in grasshoppers have received relatively little attention. The effect of increased host plant availability and population density on survival and reproductive allocation were examined in a widely distributed grasshopper, Ageneotettix deorum (Scudder). The experimental treatments consisted of amb ...
Handle:
10113/58287
DOI:
10.2317/0501.11.1