This study examined the effects of creating snags (standing dead trees) at different densities and distributions on avian nest survival rates in managed forest stands in Oregon from 2008-2010. Nest survival rates were monitored for several cavity-nesting bird species, such as chestnut-backed chickadees and house wrens. Results showed nest survival rates comparable to other studies and some species benefited from higher snag densities. However, benefits were limited by the rotation age of managed forest stands. Different strategies are needed to provide taller snags long-term for cavity-nesting birds in industrial forest landscapes.
Longleaf Pine Ecosystems
Productivity and biodiversity patterns of a longleaf pine ecosystem.
Ecological forestry and restoration of longleaf pine ecosystems.
Ecological role of mesopredators, effects of control, and habitat approaches.
Aquatic Ecology and Water Resources
Hydrologic variation and human development in the lower Flint River Basin
Depressional wetlands on the coastal plain landscape: maintenance of regional biodiversity
Gitonga etal impact of metal silo iaae presentation brazilv3 slideshareHugo De Groote
Maize is the most important food staple in Eastern and Southern Africa, with a highly seasonal production but relatively constant consumption over the year. Farmers have to store maize to bridge seasons, for food security and to protect against price fluctuations. However, the traditional storage methods do not protect grain well, resulting in large postharvest losses. Hermetically sealed metal silos kill storage pests by oxygen deprivation without pesticides. Popular in Central America, they are now being promoted in Africa, but their impact here has not yet been studied. This study used propensity score matching to evaluate the impact of metal silos on duration of maize storage, loss abatement, cost of storage, and household food security. Metal silo adopters (N=116) were matched with non-adopting farmers from a representative sample of 1340 households covering the major maize-growing zones in Kenya. The major effect of the metal silos was an almost elimination of losses due to insect pests, saving farmers an average of 150- 200 kg of grain, worth KSh 9750 (US$130). Metal silo adopters also spent about KSh 340 less on storage insecticides. Adopters were able to store their maize for 1.8 to 2.4 months longer, and sell their surplus after five months at good prices, instead of right after the harvest. The period of inadequate food provision among adopters was reduced by more than one month. We conclude that metal silos are effective in reducing grain losses due to maize-storage insects and have a large impact on the welfare and food security of farm households. The initial cost of metal silos is high (KSh 20,000/ 1.8 ton) and therefore policies to increase access to credit, to reduce the cost of sheet metal and to promote collective action can improve their uptake by smallholder farmers.
This presentation was given at the Peel Harvey Biosecurity Group's Fox Control Workshop held in Harvey. Presentation was given by Dr Peter Adams from the Department of Primary Resources and Regional Development.
Dr. Richard Blatchford - Update on Coalition for Sustainable Egg Supply ResearchJohn Blue
Update on Coalition for Sustainable Egg Supply Research - Dr. Richard Blatchford, Professor at UC Davis, from the 2015 NIAA Annual Conference titled 'Water and the Future of Animal Agriculture', March 23 - March 26, 2015, Indianapolis, IN, USA.
More presentations at http://www.trufflemedia.com/agmedia/conference/2015_niaa_water_future_animal_ag
Towards identifying novel phenotypes in climate adapted livestock productionSIANI
This presentation was held by Mizeck Chagunda/SRUC at the international seminar 'Livestock Resources for Food Security in the Light of Climate Change' co-hosted by SIANI and SLU Global in Uppsala on the 11th of March 2016.
Screening for drought tolerance in finger millet germplasmICRISAT
Drought is the most limiting abiotic stress in finger millet production. Very little has been done to explore resistance in the crop. Finger millet is reported to have special mechanisms for drought resistance which some varieties possess. Drought tolerant lines will yield relatively well when water is scarce but do not lose the ability to yield well in good seasons. A number of agronomic traits; seedling vigor, days to flowering (DAF), plant height, umber of productive tillers, amount of chaff (threshability) and grain yield have been used to assess drought tolerance in finger millet.
Jon De Jong - Evaluating Strategic Pellet Feeding Regimens On Finishing Pig P...John Blue
Evaluating Strategic Pellet Feeding Regimens On Finishing Pig Performance, Stomach Morphology, And Carcass Characteristics - Jon De Jong, from the 2015 Allen D. Leman Swine Conference, September 19-22, 2015, St. Paul, Minnesota, USA.
More presentations at http://www.swinecast.com/2015-leman-swine-conference-material
Evaluation of the feed quality of six dual purpose pearl millet varieties and...ILRI
Poster prepared by Umutoni Clarisse, Bado Vincent, Whitbread Anthony, Ayantunde Augustine, Abdoussalam Ibrahim and Hamza Seydou Korombe for the Tropentag 2019: Filling gaps and removing traps for sustainable resources management, University of Kassel, Germany, 18-20 September 2019
Longleaf Pine Ecosystems
Productivity and biodiversity patterns of a longleaf pine ecosystem.
Ecological forestry and restoration of longleaf pine ecosystems.
Ecological role of mesopredators, effects of control, and habitat approaches.
Aquatic Ecology and Water Resources
Hydrologic variation and human development in the lower Flint River Basin
Depressional wetlands on the coastal plain landscape: maintenance of regional biodiversity
Gitonga etal impact of metal silo iaae presentation brazilv3 slideshareHugo De Groote
Maize is the most important food staple in Eastern and Southern Africa, with a highly seasonal production but relatively constant consumption over the year. Farmers have to store maize to bridge seasons, for food security and to protect against price fluctuations. However, the traditional storage methods do not protect grain well, resulting in large postharvest losses. Hermetically sealed metal silos kill storage pests by oxygen deprivation without pesticides. Popular in Central America, they are now being promoted in Africa, but their impact here has not yet been studied. This study used propensity score matching to evaluate the impact of metal silos on duration of maize storage, loss abatement, cost of storage, and household food security. Metal silo adopters (N=116) were matched with non-adopting farmers from a representative sample of 1340 households covering the major maize-growing zones in Kenya. The major effect of the metal silos was an almost elimination of losses due to insect pests, saving farmers an average of 150- 200 kg of grain, worth KSh 9750 (US$130). Metal silo adopters also spent about KSh 340 less on storage insecticides. Adopters were able to store their maize for 1.8 to 2.4 months longer, and sell their surplus after five months at good prices, instead of right after the harvest. The period of inadequate food provision among adopters was reduced by more than one month. We conclude that metal silos are effective in reducing grain losses due to maize-storage insects and have a large impact on the welfare and food security of farm households. The initial cost of metal silos is high (KSh 20,000/ 1.8 ton) and therefore policies to increase access to credit, to reduce the cost of sheet metal and to promote collective action can improve their uptake by smallholder farmers.
This presentation was given at the Peel Harvey Biosecurity Group's Fox Control Workshop held in Harvey. Presentation was given by Dr Peter Adams from the Department of Primary Resources and Regional Development.
Dr. Richard Blatchford - Update on Coalition for Sustainable Egg Supply ResearchJohn Blue
Update on Coalition for Sustainable Egg Supply Research - Dr. Richard Blatchford, Professor at UC Davis, from the 2015 NIAA Annual Conference titled 'Water and the Future of Animal Agriculture', March 23 - March 26, 2015, Indianapolis, IN, USA.
More presentations at http://www.trufflemedia.com/agmedia/conference/2015_niaa_water_future_animal_ag
Towards identifying novel phenotypes in climate adapted livestock productionSIANI
This presentation was held by Mizeck Chagunda/SRUC at the international seminar 'Livestock Resources for Food Security in the Light of Climate Change' co-hosted by SIANI and SLU Global in Uppsala on the 11th of March 2016.
Screening for drought tolerance in finger millet germplasmICRISAT
Drought is the most limiting abiotic stress in finger millet production. Very little has been done to explore resistance in the crop. Finger millet is reported to have special mechanisms for drought resistance which some varieties possess. Drought tolerant lines will yield relatively well when water is scarce but do not lose the ability to yield well in good seasons. A number of agronomic traits; seedling vigor, days to flowering (DAF), plant height, umber of productive tillers, amount of chaff (threshability) and grain yield have been used to assess drought tolerance in finger millet.
Jon De Jong - Evaluating Strategic Pellet Feeding Regimens On Finishing Pig P...John Blue
Evaluating Strategic Pellet Feeding Regimens On Finishing Pig Performance, Stomach Morphology, And Carcass Characteristics - Jon De Jong, from the 2015 Allen D. Leman Swine Conference, September 19-22, 2015, St. Paul, Minnesota, USA.
More presentations at http://www.swinecast.com/2015-leman-swine-conference-material
Evaluation of the feed quality of six dual purpose pearl millet varieties and...ILRI
Poster prepared by Umutoni Clarisse, Bado Vincent, Whitbread Anthony, Ayantunde Augustine, Abdoussalam Ibrahim and Hamza Seydou Korombe for the Tropentag 2019: Filling gaps and removing traps for sustainable resources management, University of Kassel, Germany, 18-20 September 2019
Nutritional deposition by nesting Loggerhead sea turtles enhances dune resili...
snag presentation August 2012 ESA
1. Experimental effects of structural
enrichment on avian nest survival in a
managed forest landscape
Matt Hane1, AJ Kroll1, Josh Johnson1, Mike Rochelle1 and
Ed Arnett2
1Weyerhaeuser Timberlands Research
2Theodore Roosevelt Conservation Partnership
2. 2
CREATION OF SNAG HABITAT FROM EXISTING
LIVE TREES CAN BE DONE
• Background
• Study Design
• Results
• Final Thoughts
3. 3
BACKGROUND
• Transition from old forests
to intensively-managed
stands
• Deficiencies in snag
numbers and types
• How will adequate types
and numbers of snags be
maintained in upland
areas?
We emphasize that the complete
ecological role of snags in the
forest is still unknown; therefore,
management strategies involving
the snag resource must be flexible.
--Cline et al. (1980: 785)
5. 5
BACKGROUND
• Harvest units
o Naturally regenerated 2nd growth Douglas fir stands
o All units were harvested with ground-based
systems
o Harvester cut off tree at the highest point it could
reach
• Treatments
o Density: 0.5, 1.2, and 2.5 snags/ha
o Clustered (5-6 trees) vs. uniformly distributed
7. 7
STUDY DESIGN
• 2008 through 2010
• Determine rate of avian
nest survival in snags
created from
merchantable 2nd growth
8. 8
STUDY DESIGN
• Two stage modeling process
o1st temporal variation
date, date^2, stage, date*stage, constant, global
o2ndexperimental design
year, treatment, density, dispersion, density*dispersion,
• Logistic exposure method
Shaffer, Terry L. (2004) A unified approach to analyzing
nest success. Auk, 121, 526-540.
9. 9
RESULTS – Expected
"Industrial tree farms are sterile and lifeless, this
particular method is incredibly ecologically
destructive."
Juliette Beck, coordinator of the Sierra Club's Stop Clearcutting Campaign,
as quoted in the San Francisco Bay Guardian Online November 9, 2011
10. 10
RESULTS – Expected
Primary cavity excavators
Chestnut-back chickadee
Downy woodpecker
Hairy woodpecker
Northern flicker
Pileated woodpecker
Red-breasted nuthatch
Red- breasted sapsucker
Walter & Maguire (2005) Snags, cavity nesting birds, and silvicultural
treatments in western Oregon. Journal of Wildlife Management, 69,
1578-1591
Secondary cavity excavators
Brown creeper
European starling
House wren
Violet-green swallow
13. 13
RESULTS Chestnut-backed chickadee
• Our Study
o Apparent nest success 65%
o Average daily survival 0.989
95%CL: 0.965-0.996
• Other Studies
o Mahon & Martin (2006) 49%
o Sperry et. al. (2008) 0.976 & 0.984
95%CL: 0.925-0.996
14. 14
RESULTS Chestnut-backed chickadee
Low density
Medium density
High density
L
M
H
L
M
H
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
2008 2009 2010
Year
Period Survival Rates
15. 15
RESULTS House wren
• Our Study
o Apparent nest success 78%
o Period survival rate 0.72 95%CL: 0.52, 0.85
• Other studies
o Period survival rate
• Cavities 0.63 – 0.75
• Boxes 0.83
16. 16
RESULTS Northern flicker
• Our Study
o Apparent nest success 63.5%
o Period survival rate 0.60 95%CL: 0.46, 0.71
• Other studies
o Apparent nest success
cavities and boxes 41% -100 %
o Period survival rate 0.41 – 0.80
17. 17
RESULTS Purple martin
• Our Study
o Apparent nest success 65%
o Period survival rate 0.70 95%CL: 0.48, 0.84
• Other studies
o Nest box success 38.5% - 84.3%
18. 18
• Leaving created snags at a density
of 0.5/ha retains some cavity-
nesting bird species
o Up to years 12-15…
• Benefits restricted by rotation age
o Snags must be created from
trees growing in unit
o Suitability is also dependent on
stand conditions (e.g., site index)
and landscape context
• Different strategies are required to
provide tall snags
• Other taxa besides birds?
FINAL THOUGHTS
19. 19
FINAL THOUGHTS
• Ed Arnett
• Weyerhaeuser
o South Valley Operations
for creating units and
snags
o Supporting research
• Oregon Forest Industries
Council (OFIC)
• Field crews 2008-2010
Acknowledgements
Think we should include sales expense as % revenue and G&A also as % revenue for each year. - DONE
For timberlands…believe we want to show total revenue including interco – otherwise rest of #s will be odd. Agree. Is that not correct on how the description is included above?
And what is the right answer for Distrib and ELP? Same – sales including interco? - I would expect iLevel will want to show this info for 4 businesses within iLevel as per the change Larry implemented this year. Intercompany sales between ELP and distribution will be included.
What’s your logic for 2014 v. 2012 % change for cost of sales numbers – what would that show? I am not sure we want that number, rather see GM only. – Based on our discussion this was the CAGR calculation. I thought you were interested in seeing that. It highlights the change in each area. It is easy to drop if not needed.