scholarly journals Weather and landscape influences on pollinator visitation of flowering winter oilseeds (field pennycress and winter camelina)

2020 ◽  
Author(s):  
Frank Forcella ◽  
Swetabh Patel ◽  
Andrew W. Lenssen ◽  
Cody Hoerning ◽  
M. Scott Wells ◽  
...  
Keyword(s):  
Pollinator Visitation ◽  
Field Pennycress ◽  
Landscape Influences

IMPROVING WATER QUALITY THROUGH REDUCING AGRICULTURAL NUTRIENT LOSS: FIELD PENNYCRESS AS A COVER CROP

2020 ◽  
Author(s):  
Mujen Wang ◽  
◽  
William L. Perry ◽  
Wondwosen Mekonnen Seyoum
Keyword(s):  
Water Quality ◽  
Cover Crop ◽  
Nutrient Loss ◽  
Field Pennycress

Soybean Seed Yield and Quality as a Response to Field Pennycress Residue

Crop Science ◽  
2012 ◽  
Vol 52 (6) ◽  
pp. 2767-2773 ◽  
Author(s):  
Winthrop B. Phippen ◽  
Mary E. Phippen
Keyword(s):  
Seed Yield ◽  
Soybean Seed ◽  
Yield And Quality ◽  
Field Pennycress

Henbit (Lamium amplexicaule), Common Chickweed (Stellaria media), Shepherd's-Purse (Capsella bursa-pastoris), and Field Pennycress (Thlaspi arvense): Fecundity, Seed Dispersal, Dormancy, and Emergence

Weed Science ◽  
2014 ◽  
Vol 62 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Erin C. Hill ◽  
Karen A. Renner ◽  
Christy L. Sprague
Keyword(s):  
Seed Production ◽  
Seedling Emergence ◽  
Crop Productivity ◽  
Seed Fate ◽  
Stellaria Media ◽  
Thlaspi Arvense ◽  
Emergence Patterns ◽  
Field Pennycress ◽  
Winter Annuals ◽  
Winter Annual

Winter annual weeds protect the soil from erosion and retain nutrients during the winter; however, they can also act as a host for crop pests and pathogens and impede planting. Increased knowledge of the reproductive biology and the seed fate of winter annuals would be useful to improve management and crop productivity. The objectives of this research were to determine the recruitment biology of shepherd's-purse, henbit, common chickweed, and field pennycress, including seed production, dispersal, dormancy, and seedling emergence, based on growing degree days (GDD). Henbit was the least prolific of the four weeds studied, producing 800 to 40,000 seeds m−2at naturally occurring densities; shepherd's-purse was the most prolific, producing 11,000 to 400,000 seeds m−2with 40 to 230 plants m−2. Fifty percent seed rain occurred for henbit, common chickweed, shepherd's-purse, and field pennycress at 620, 790, 880, and 1300 GDDBase,0C, respectively. Overall, seeds were dormant for all species at the time of dispersal. In 2 of 3 yr, dormancy of later-dispersed common chickweed decreased after 6 mo of storage at natural, fluctuating temperatures in the absence of water. The emergence patterns of the four species followed the Gompertz equation and were indicative of facultative winter annuals. The emergence patterns by rate were similar between henbit and common chickweed and between shepherd's-purse and field pennycress. Seed production, dispersal, dormancy, and seedling emergence were influenced by moisture; therefore, including a precipitation or soil moisture component into a GDD model (such as the use of hydrothermal time) would improve the accuracy of predicting winter annual reproduction, seed fate, and emergence.

Landscape influences on the natural and artificially manipulated movements of bearded capuchin monkeys

2015 ◽  
Vol 106 ◽  
pp. 59-70 ◽  
Author(s):  
Allison M. Howard ◽  
Nathan P. Nibbelink ◽  
Marguerite Madden ◽  
Leigh Anna Young ◽  
Sergio Bernardes ◽  
...  
Keyword(s):  
Capuchin Monkeys ◽  
Landscape Influences

scholarly journals Flowering Dynamics and Pollinator Visitation of Oilseed Echium (Echium plantagineum)

PLoS ONE ◽  
2014 ◽  
Vol 9 (11) ◽  
pp. e113556 ◽  
Author(s):  
Carrie A. Eberle ◽  
Frank Forcella ◽  
Russ Gesch ◽  
Sharon Weyers ◽  
Dean Peterson ◽  
...  
Keyword(s):  
Pollinator Visitation

Factors affecting pollinator visitation and reproductive success in Sonneratia caseolaris and Aegiceras corniculatum in a mangrove forest in India

2001 ◽  
Vol 17 (3) ◽  
pp. 431-447 ◽  
Author(s):  
SHALINI PANDIT ◽  
B. C. CHOUDHURY
Keyword(s):  
Reproductive Success ◽  
Mangrove Forest ◽  
Time Of Day ◽  
Pollinator Visitation ◽  
Aegiceras Corniculatum ◽  
Factors Affecting ◽  
Plant Reproductive Success ◽  
Sonneratia Caseolaris ◽  
Exclusion Experiments ◽  
Selfing Species

Pollinator visitation to, and the reproductive success of, Sonneratia caseolaris (Sonneratiaceae) and Aegiceras corniculatum (Myrsinaceae) was investigated in a mangrove forest in India. S. caseolaris was shown to be primarily outcrossed and A. corniculatum was shown to be a selfing species. The flowers of both plant species attracted several diurnal and nocturnal visitors. Earlier reports had indicated that S. caseolaris flowered for one night and was exclusively night-pollinated. But flowers of this species were found to be in bloom both at night and during the day, and diurnal visitors to the flowers were more diverse and frequent than nocturnal ones. This was related to the higher volume and energy value of nectar in the morning. The effects of time of day and temperature on visitation rates were quantified. The importance of visitors to plant reproductive success was investigated via controlled visitor-exclusion experiments. Pollinators were expected to be more important for the outcrossing species than for the selfing species, and this was confirmed by the results of the exclusion experiments. In S. caseolaris reproductive success was determined both by pollinator availability and the intensity of flower and fruit predation, while in A. corniculatum it is likely to be resource limited.

scholarly journals Pollinator visitation, stigmatic pollen loads and among-population variation in seed set in Lythrum salicaria

2004 ◽  
Vol 92 (3) ◽  
pp. 512-526 ◽  
Author(s):  
ANNA R. WAITES ◽  
JON ÅGREN
Keyword(s):  
Seed Set ◽  
Lythrum Salicaria ◽  
Population Variation ◽  
Pollinator Visitation ◽  
Pollen Loads

scholarly journals Environmental and landscape influences on the spatial and temporal distribution of a cattle herd in a South Texas rangeland

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Christopher Cheleuitte-Nieves ◽  
Humberto L. Perotto-Baldivieso ◽  
X. Ben Wu ◽  
Susan M. Cooper
Keyword(s):  
Temporal Distribution ◽  
South Texas ◽  
Cattle Herd ◽  
Spatial And Temporal Distribution ◽  
Landscape Influences

Pollinator gardens more than triple in visitation rate and diversity of flower-visiting insects than other ornamental plantings in Kingston, Ontario

2018 ◽  
Author(s):  
Marika Vogelzang
Keyword(s):  
Urban Areas ◽  
Unit Area ◽  
The Other ◽  
Individual Plant ◽  
University Campus ◽  
Pollinator Visitation ◽  
Visitation Rate ◽  
Queen's University ◽  
Flower Visiting ◽  
Pollinator Populations

In this study I determined the effectiveness of pollinator gardens by testing if visitation rate and diversity of flower-visiting insects is higher in pollinator gardens compared to other ornamental plantings. I observed pollinator visitation for individual plant taxa, per unit area, in three different pollinator gardens, eight ornamental gardens and eight ornamental planters on the Queen’s University campus in Kingston, Ontario, Canada. Visitation was about 4- times higher in pollinator gardens compared to the other two ornamental garden types and visitor richness (the number of types of pollinators) in pollinator gardens was about 6- times higher compared to ornamental gardens, and about 3- times higher compared toornamental planters. The results of this study conclude that the planting of pollinator gardens is an effective way of supporting pollinator populations in urban areas.

Sign in / Sign up

Export Citation Format

Share Document