city of fort collins natural areas program · conifer life cycle. ponderosa pine life cycle pollen...
TRANSCRIPT
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City of Fort Collins
Natural Areas Program
CONIFER TREES of the Rocky Mountains
Eastern Slope
Presented by David BayerMaster Naturalist
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Everybody can be a tree hugger—
once you get to know them.
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Reasons to hug a tree:
Trees in a forest are:❖major carbon sink
❖major oxygen producer
❖high profile for more ecological niches
❖ watershed retention
❖ cooling
❖major source of serenity
❖ climate/life zone indicator
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Flowering SeedPlants Mostly Conifers
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Class Gymnosperms
Gymnosperms are plants that have vascular systems and they bear seeds.
The term is derived from the Greek words gymno (naked) and sperma (seed). The seeds of gymnosperms are naked, which means they are not enclosed within a fruit as do angiosperms (flowering seed plants).
Orders
Ginkgo
Cycadaes
.Ephedra
Coniferalies (Pinadae) Family Pinaceae
Genera: Pines, Firs. Spruce
Larch, Hemlock, Cyprus
Yew, Redwoods, DouglasFir
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The early dinosaurs fed on early gymnosperms that are ancestors of today’s conifers
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Conifer Life Cycle
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Ponderosa PineLife Cycle
Pollen Cones Seed Cone
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Using a Dichotomous Key
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Recommended readings and references
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Black-throated Gray Warbler
4,500- 7,000 ft
Juniperous scopulorum
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Pinyon PinePinus cembroides
4,000 to 7,500 feet
Pinyon Jay
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Pinyon Pines along Highway 287 north
DB
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DB
DB
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Abert’s Squirrel
Only in the ponderosa pine forest
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Pygmy Nuthatch
Only in the ponderosa pine
forest
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Mixed with ponderosa pine. More dominant on north-facing slopes.
P Pine
5,600 – 9,o00 ft.
DBRuby-crowned Kinglet
Pseudotsuga menziesii
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Ponderosa PineDouglas Fir
N S
South-Facing Slope North-Facing Slope
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Douglas Fir Ponderosa Pine
West
South-Facing Slope
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Engelmann Spruce
Picea engelmanni8,500 -12,000 ft.
Red Crossbill
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More wildlife of the Subalpine Life Zone
Boreal Owl
Dusky Grouse
Clark’s Nutcracker
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Subalpine Fir 8,500 – 12,000 ft.
Abies lasiocarpa
.
DB
Spruce bark
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Ptarmigan in the Krummholzof Subalpine Fir
11,500 feet elevation
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SPRUCE
FIR
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DB
Yellow-rumped Warbler
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7,500, – 1o,000 feet
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DB
6 – 8,000 ft. elevation.
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Up to 10,000 feet .
8,000 - 11,000 feet
Clark’s Nutcracker
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7,500 to 11,000
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Quaking Aspen is the only deciduous tree at elevations between 7,000 and 10,000 feet.
DB
DB
QuakingAspenPopulous tremuloides
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From page 19Grasslands to GlacierBy Emerick
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Everybody needs beauty as well as bread,Places to play in and pray in,Where Nature may heal and cheer,and give strength to body and soul alike.
John Muir
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City of Fort Collins
Natural Areas Program
CONIFER TREES of the Rocky Mountains
Eastern Slope
Presented by David BayerMaster Naturalist