Can forest fragmentation disrupt a conditional mutualism? A case
... acouchies are, on average, one-third to half of the size of agoutis (0.5–1 vs. 3–6 kg). Ecologically, they exhibit few differences. South American agoutis have larger home ranges: 5–10 ha (Jorge and Peres 2005; Silvius and Fragoso 2003) versus 1–2 ha for acouchies (Dubost 1988). During periods of fr ...
... acouchies are, on average, one-third to half of the size of agoutis (0.5–1 vs. 3–6 kg). Ecologically, they exhibit few differences. South American agoutis have larger home ranges: 5–10 ha (Jorge and Peres 2005; Silvius and Fragoso 2003) versus 1–2 ha for acouchies (Dubost 1988). During periods of fr ...
Spotted knapweed - Oregon State University
... burning can be a very successful way to control noxious weeds. Fire quickly destroys all aboveground parts of knapweed plants. In some cases, heat from the fire may stimulate rapid seed germination, resulting in quick emergence of a great number of weeds. By speeding up the germination process, the ...
... burning can be a very successful way to control noxious weeds. Fire quickly destroys all aboveground parts of knapweed plants. In some cases, heat from the fire may stimulate rapid seed germination, resulting in quick emergence of a great number of weeds. By speeding up the germination process, the ...
Sunflower Insects: Scouting and Identification
... head to cup toward the center, and seeds will not develop properly. In severe infestations, the head will be almost completely closed, the receptacle enlarged, and there will be no seeds in the head. Damage from sunflower midge in Vermont is not widespread; most fields have only low levels of midge ...
... head to cup toward the center, and seeds will not develop properly. In severe infestations, the head will be almost completely closed, the receptacle enlarged, and there will be no seeds in the head. Damage from sunflower midge in Vermont is not widespread; most fields have only low levels of midge ...
purple loosestrife Lythrum salicaria L. European wand loosestrife
... germinate (Shamsi and Whitehead 1974). Temperature at the soil surface is a critical factor for germination; the optimal temperature range is from 15°C to 20°C (DiTomaso and Healy 2003). Seeds can germinate in acidic or alkaline soils as well as nutrient rich or nutrient poor soils. Growth requireme ...
... germinate (Shamsi and Whitehead 1974). Temperature at the soil surface is a critical factor for germination; the optimal temperature range is from 15°C to 20°C (DiTomaso and Healy 2003). Seeds can germinate in acidic or alkaline soils as well as nutrient rich or nutrient poor soils. Growth requireme ...
Owl Clover Leads a Complex Life - Habeck
... Other botanists believe the rounded flower tops resemble an owl’s head, with the projecting flowers being the owl’s ears. It grows in habitats that are warm and dry during the summer, such as in grasslands or open ponderosa pine forests. Collections in the University of Montana Herbarium reveal Owl ...
... Other botanists believe the rounded flower tops resemble an owl’s head, with the projecting flowers being the owl’s ears. It grows in habitats that are warm and dry during the summer, such as in grasslands or open ponderosa pine forests. Collections in the University of Montana Herbarium reveal Owl ...
WILD Canada Catalogue
... harvested from our seed crop plantings, or from the wild, in central and southern Ontario. Most are from the southern Georgian Bay area, thus, our plants are “Indigenous”. This means that not only is the species native, but the seed stock has originated in the local growing area. Indigenous native p ...
... harvested from our seed crop plantings, or from the wild, in central and southern Ontario. Most are from the southern Georgian Bay area, thus, our plants are “Indigenous”. This means that not only is the species native, but the seed stock has originated in the local growing area. Indigenous native p ...
Bloom Calendar
... ’Summer Snowlflake’ flowers sporadically into November ‘Shasta’ & ‘Mariesii’ - very similar with pure white flowers, ‘Shasta’ supposedly has a larger flower, flowers last May to July ...
... ’Summer Snowlflake’ flowers sporadically into November ‘Shasta’ & ‘Mariesii’ - very similar with pure white flowers, ‘Shasta’ supposedly has a larger flower, flowers last May to July ...
Recommended Native and Adapted Plants for Boerne
... Using native and well-adapted plants to landscape will save time and money. Once established, natives require less water, fertilizer, pesticides, and maintenance than most non-natives. Before buying plants, identify the characteristics of your yard, such as how much morning and afternoon sun or shad ...
... Using native and well-adapted plants to landscape will save time and money. Once established, natives require less water, fertilizer, pesticides, and maintenance than most non-natives. Before buying plants, identify the characteristics of your yard, such as how much morning and afternoon sun or shad ...
WEEDS A simple definition for a weed from a human perspective
... among the surrounding ‘desired’ plants. Some of these characters include ability to reproduce by seeds and/or vegetative structures, high rate of seed production and dispersal, adaptations of seeds and vegetative plant parts to undergo dormancy for long periods of time. Many weeds can also survive i ...
... among the surrounding ‘desired’ plants. Some of these characters include ability to reproduce by seeds and/or vegetative structures, high rate of seed production and dispersal, adaptations of seeds and vegetative plant parts to undergo dormancy for long periods of time. Many weeds can also survive i ...
Document
... like ‘lollipops.’ Heads are stalked and bear about 100 mauve to pink flowers. Each head produces seven pods of segmented, flat pod fruit, which are about 3 inches long and 0.5 inch wide and have brown bristles. Each fruit has 9 to 24 segments, each breaking free and containing one seed. Seed can be ...
... like ‘lollipops.’ Heads are stalked and bear about 100 mauve to pink flowers. Each head produces seven pods of segmented, flat pod fruit, which are about 3 inches long and 0.5 inch wide and have brown bristles. Each fruit has 9 to 24 segments, each breaking free and containing one seed. Seed can be ...
Lantana camara
... bright green, rough, finely hairy, with serrate margins and emit a pungent odour when crushed. The stem in cultivated varieties is often non- thorny and in weedy varieties with recurved prickles. It is woody, square in cross section, hairy when young, cylindrical and up to 15 cm thick as it grows ol ...
... bright green, rough, finely hairy, with serrate margins and emit a pungent odour when crushed. The stem in cultivated varieties is often non- thorny and in weedy varieties with recurved prickles. It is woody, square in cross section, hairy when young, cylindrical and up to 15 cm thick as it grows ol ...
wildflowers of minnesota`s northern prairies
... native prairie. MNDNR scientific and natural areas, state parks, and wildlife management areas; USFWS national wildlife refuges and waterfowl protection areas; and TNC preserves dot the landscape of western Minnesota and are excellent places to see prairie wildflowers and wildlife. Contact a local M ...
... native prairie. MNDNR scientific and natural areas, state parks, and wildlife management areas; USFWS national wildlife refuges and waterfowl protection areas; and TNC preserves dot the landscape of western Minnesota and are excellent places to see prairie wildflowers and wildlife. Contact a local M ...
Canola Mustard Rapeseed and Related Weeds in
... of characteristics within the Brassicas and their varieties has been altered through variety development. Natural or artificial hybrids could resemble either parent or a combination of both parental types. Certain plant characteristics are useful to the layperson for identification of Brassicas curr ...
... of characteristics within the Brassicas and their varieties has been altered through variety development. Natural or artificial hybrids could resemble either parent or a combination of both parental types. Certain plant characteristics are useful to the layperson for identification of Brassicas curr ...
Variable Phytotoxic Effects of Thymus vulgaris (Lamiaceae
... season was 3.75 mm per day, and we provided the same average over the duration of the experiments. Germination was recorded at 15 and 30 d. Seedling identity was tracked for all containers by labeling of seedlings that had germinated at 15 d with toothpicks. Those still alive at 30 d were used to co ...
... season was 3.75 mm per day, and we provided the same average over the duration of the experiments. Germination was recorded at 15 and 30 d. Seedling identity was tracked for all containers by labeling of seedlings that had germinated at 15 d with toothpicks. Those still alive at 30 d were used to co ...
Competition Among Insects, Birds and Mammals for Conifer Steeds
... cate, however, that differences between not significantly greater in numbers of cones and trees add little or nothing to the seeds per cone in cones taken from several variance in seed quality (Smith, 1968). The annual crops than in cones taken from one coefficient of variation differs from 5.5% to ...
... cate, however, that differences between not significantly greater in numbers of cones and trees add little or nothing to the seeds per cone in cones taken from several variance in seed quality (Smith, 1968). The annual crops than in cones taken from one coefficient of variation differs from 5.5% to ...
univERsity oF copEnhAGEn
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
univERsity oF copEnhAGEn
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
univERsity oF copEnhAGEn
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
... Cleaning (seed). Here: separation of seed from other species and non-seed fragments such as fruit fragments, leaves or stems. Cleaning may be undertaken by sifting, blowing, winnowing, flotation etc. The degree to which seed is cleaned is called purity. See Pure seed, Purity, Seed testing. Cleistoga ...
Amur Maple - Natrona County Conservation District
... sugar content of other maple species. The sap, mostly collected in the spring, is concentrated by boiling or reverse osmosis, with about 35-40 liters of sap making 1 liter of syrup. A single tree may produce 5-60 liters of sap per year. Nights below freezing and days at higher than 5°C are needed to ...
... sugar content of other maple species. The sap, mostly collected in the spring, is concentrated by boiling or reverse osmosis, with about 35-40 liters of sap making 1 liter of syrup. A single tree may produce 5-60 liters of sap per year. Nights below freezing and days at higher than 5°C are needed to ...
O & W
... 6. Protect from damage such as grazing, trampling, and traffic during establishment. 7. Fertilization of seedings is not recommended on areas where competitive species are likely to respond to the detriment of the seeded species. Do not fertilize when establishing a diversity of forbs, legumes, and ...
... 6. Protect from damage such as grazing, trampling, and traffic during establishment. 7. Fertilization of seedings is not recommended on areas where competitive species are likely to respond to the detriment of the seeded species. Do not fertilize when establishing a diversity of forbs, legumes, and ...
The taxonomy, reproductive biology and
... raceme bearing about 10 capitula with alternate peduncles. Its main axis is a woody, leafless, usually unbranched twig about 0.3 m long. This may be a prolongation of a leaf-bearing branch, or it may develop from an axillary bud on the previous year's growth, in which case it can be abscissed after ...
... raceme bearing about 10 capitula with alternate peduncles. Its main axis is a woody, leafless, usually unbranched twig about 0.3 m long. This may be a prolongation of a leaf-bearing branch, or it may develop from an axillary bud on the previous year's growth, in which case it can be abscissed after ...
Chapter 38 Lecture Plant Reproduction
... – Plant breeders sometime hybridize different varieties of a crop plant to combine the best traits of the varieties and counter the loss of vigor that can result from excessive inbreeding. – Many agricultural plants are self-compatible. ...
... – Plant breeders sometime hybridize different varieties of a crop plant to combine the best traits of the varieties and counter the loss of vigor that can result from excessive inbreeding. – Many agricultural plants are self-compatible. ...
Seedling–herbivore interactions: insights into
... primary source of seedling mortality (Moles and Westoby, 2004), and that seedlings may thereby represent the life-stage at which herbivore selection pressure is strongest (Swihart and Bryant, 2001; Fenner and Thompson, 2005). Consequently, we still have a relatively poor understanding about how seed ...
... primary source of seedling mortality (Moles and Westoby, 2004), and that seedlings may thereby represent the life-stage at which herbivore selection pressure is strongest (Swihart and Bryant, 2001; Fenner and Thompson, 2005). Consequently, we still have a relatively poor understanding about how seed ...
Nevada Noxious Weed Field Guide
... stipulates that property owners whose land is infested with noxious weeds are required to implement control measures. Noxious weeds can spread rapidly and compete aggressively with other plants for light, nutrients and water. Once noxious weeds inhabit a site, they often reproduce profusely, creatin ...
... stipulates that property owners whose land is infested with noxious weeds are required to implement control measures. Noxious weeds can spread rapidly and compete aggressively with other plants for light, nutrients and water. Once noxious weeds inhabit a site, they often reproduce profusely, creatin ...
Ecology of Banksia
The ecology of Banksia refers to all the relationships and interactions among the plant genus Banksia and its environment. Banksia has a number of adaptations that have so far enabled the genus to survive despite dry, nutrient-poor soil, low rates of seed set, high rates of seed predation and low rates of seedling survival. These adaptations include proteoid roots and lignotubers; specialised floral structures that attract nectariferous animals and ensure effective pollen transfer; and the release of seed in response to bushfire.The arrival of Europeans in Australia has brought new ecological challenges. European colonisation of Australia has directly affected Banksia through deforestation, exploitation of flowers and changes to the fire regime. In addition, the accidental introduction and spread of plant pathogens such as Phytophthora cinnamomi (dieback) pose a serious threat to the genus's habitat and biodiversity. Various conservation measures have been put in place to mitigate these threats, but a number of taxa remain endangered.