![(Brassicaceae): D. mieheorum from Tibet and D. sagasteguii from Peru](http://s1.studyres.com/store/data/007778224_1-9e58e0118f388e5693fb4ac63a3e6dbc-300x300.png)
(Brassicaceae): D. mieheorum from Tibet and D. sagasteguii from Peru
... lowermost 2 or 3 flowers; fruiting pedicels divaricate, straight, stellate pubescent, 4–8 mm long. Sepals purplish green, erect, oblong, caducous, 3–3.5 3 1–1.5 mm, sparsely pubescent with stellate trichomes, subequal at base, margin narrowly membranous; petals yellow, spatulate, short-clawed, 6– 7 ...
... lowermost 2 or 3 flowers; fruiting pedicels divaricate, straight, stellate pubescent, 4–8 mm long. Sepals purplish green, erect, oblong, caducous, 3–3.5 3 1–1.5 mm, sparsely pubescent with stellate trichomes, subequal at base, margin narrowly membranous; petals yellow, spatulate, short-clawed, 6– 7 ...
Biodiversity Conservation Guide for Farmers and Ranchers in Alberta
... sometimes occur. For example, planting a shelterbelt or erecting a perch for raptors (birds of prey) near burrowing owl habitat can increase predation by hawks on the owls. Some changes may also have the potential to bring pest birds, mammals, insects or diseases onto your land. The risk of negative ...
... sometimes occur. For example, planting a shelterbelt or erecting a perch for raptors (birds of prey) near burrowing owl habitat can increase predation by hawks on the owls. Some changes may also have the potential to bring pest birds, mammals, insects or diseases onto your land. The risk of negative ...
3rd and 4th Grade Forestry - York County Conservation District
... over 40 species of butterflies and moths including one of our most impressive moths, the Regal Moth, which reaches over 4 inches as a bright green caterpillar and as a bright orange moth has a wingspan of 6 inches! Birds like American Goldfinches, Chickadees, Finches, and Mallards eat Sycamore see ...
... over 40 species of butterflies and moths including one of our most impressive moths, the Regal Moth, which reaches over 4 inches as a bright green caterpillar and as a bright orange moth has a wingspan of 6 inches! Birds like American Goldfinches, Chickadees, Finches, and Mallards eat Sycamore see ...
Incorporating Plant Mortality and Recruitment Into
... although there is evidence that over time, some bunches can break up and migrate apart (Liston et al. 2003). For this discussion, we focus on individuals and communities that reproduce predominantly from seed. In general, the importance of recruitment is inversely proportional to a species’ life spa ...
... although there is evidence that over time, some bunches can break up and migrate apart (Liston et al. 2003). For this discussion, we focus on individuals and communities that reproduce predominantly from seed. In general, the importance of recruitment is inversely proportional to a species’ life spa ...
Fat but slim: Criteria of seed attractiveness for earthworms
... in press). They can positively or negatively affect the distribution, survival and establishment of seeds. First, displacement of seeds by ingestion and burial might protect seeds from above-ground seed predators, such as birds or insects (Azcarate and Peco 2003) and reduce exposure to stressful env ...
... in press). They can positively or negatively affect the distribution, survival and establishment of seeds. First, displacement of seeds by ingestion and burial might protect seeds from above-ground seed predators, such as birds or insects (Azcarate and Peco 2003) and reduce exposure to stressful env ...
day 3: seed saturation
... ü Most plants grow from seeds, which come in a variety of shapes, sizes, and textures. Seeds contain everything a plant needs to grow and reproduce. ü There are three parts to a seed. They are the: Testa (seed coat), Cotyledon (seed leaf), and the embryo. ü The testa, which is the outer covering, ...
... ü Most plants grow from seeds, which come in a variety of shapes, sizes, and textures. Seeds contain everything a plant needs to grow and reproduce. ü There are three parts to a seed. They are the: Testa (seed coat), Cotyledon (seed leaf), and the embryo. ü The testa, which is the outer covering, ...
TRANSFERENCE OF FUNCTION
... The syncarpous ovary has always been a problem, now beset with many artificial theories. I n essence it is an intercalary growth a t the base of the free or apocarpous carpel-primordia, which thus become elevated on the new " ovary-box ". This seems a new feature, but it is merely concerted internod ...
... The syncarpous ovary has always been a problem, now beset with many artificial theories. I n essence it is an intercalary growth a t the base of the free or apocarpous carpel-primordia, which thus become elevated on the new " ovary-box ". This seems a new feature, but it is merely concerted internod ...
asymmetrical pollen success in ipomopsis
... presence of conspecific pollen. This relatively poor performance of heterospecific pollen in competition with conspecific pollen is known as conspecific pollen advantage. Seeds from the same fruit often have different sires in natural populations, suggesting that mixed pollinations, and hence opport ...
... presence of conspecific pollen. This relatively poor performance of heterospecific pollen in competition with conspecific pollen is known as conspecific pollen advantage. Seeds from the same fruit often have different sires in natural populations, suggesting that mixed pollinations, and hence opport ...
Ecology and conservation of small carnivores in tropical rainforests
... animal prey such as small mammals and invertebrates during seasons of fruit scarcity [11]. It suggested that in tropical forests marked by year-round fruit availability, fruits would remain dominant in the diet through the year [11]. Apart from the abundance of resources, diet choice may also depend ...
... animal prey such as small mammals and invertebrates during seasons of fruit scarcity [11]. It suggested that in tropical forests marked by year-round fruit availability, fruits would remain dominant in the diet through the year [11]. Apart from the abundance of resources, diet choice may also depend ...
Glossary
... ANTHER-CELL (= Theca) One of the pollen-sacs or locules of an anther. ANTHERIDIUM Male sexual organ; structure forming male gametes, typically found in less derived plants (e.g., ferns) but so reduced evolutionarily as to not be present in flowering plants. ANTHESIS (a) Time or process of flower exp ...
... ANTHER-CELL (= Theca) One of the pollen-sacs or locules of an anther. ANTHERIDIUM Male sexual organ; structure forming male gametes, typically found in less derived plants (e.g., ferns) but so reduced evolutionarily as to not be present in flowering plants. ANTHESIS (a) Time or process of flower exp ...
Plant invasions – the role of mutualisms
... establishment and to become naturalized and, in some cases, invasive. Mutualisms involving animalmediated pollination and seed dispersal, and symbioses between plant roots and microbiota often facilitate invasions. The spread of many alien plants, particularly woody ones, depends on pollinator mutua ...
... establishment and to become naturalized and, in some cases, invasive. Mutualisms involving animalmediated pollination and seed dispersal, and symbioses between plant roots and microbiota often facilitate invasions. The spread of many alien plants, particularly woody ones, depends on pollinator mutua ...
The Northeastern Area Invasive Forest Plant Species Project
... water, and nutrients when the overstory is dormant. Understanding the specific ecological traits of an invasive species helps land managers to plan more effective monitoring and control. For example, the seeds of garlic mustard (Alliaria petiolata) can persist in the soil seed bank; even after matur ...
... water, and nutrients when the overstory is dormant. Understanding the specific ecological traits of an invasive species helps land managers to plan more effective monitoring and control. For example, the seeds of garlic mustard (Alliaria petiolata) can persist in the soil seed bank; even after matur ...
morphology of flowering plants chapter 5
... store food in them. They also act as organs of perennation to tide over conditions unfavourable for growth. Stem tendrils which develop from axillary buds, are slender and spirally coiled and help plants to climb such as in gourds (cucumber, pumpkins, watermelon) and grapevines. Axillary buds of ste ...
... store food in them. They also act as organs of perennation to tide over conditions unfavourable for growth. Stem tendrils which develop from axillary buds, are slender and spirally coiled and help plants to climb such as in gourds (cucumber, pumpkins, watermelon) and grapevines. Axillary buds of ste ...
The effect of grazing on biodiversity in the grassland biome
... The summary of studies on biodiversity in the grassland biome illustrates the fact that studies are few and far between, and workers in different disciplines work in isolation from each other. More complementary studies in a few systems, rather than isolated studies in many systems, would greatly en ...
... The summary of studies on biodiversity in the grassland biome illustrates the fact that studies are few and far between, and workers in different disciplines work in isolation from each other. More complementary studies in a few systems, rather than isolated studies in many systems, would greatly en ...
File
... Summarize the different methods of pollination and their relevance in solving crimes Identify the different ways spores are dispersed State characteristics of pollen and spores that are important for forensic studies Summarize how pollen and spore evidence is collected at a crime scene Describe how ...
... Summarize the different methods of pollination and their relevance in solving crimes Identify the different ways spores are dispersed State characteristics of pollen and spores that are important for forensic studies Summarize how pollen and spore evidence is collected at a crime scene Describe how ...
Great Basin naturalist memoirs
... and Australian desert forms is a textbook example of convergent evolution. Like jerboas, ...
... and Australian desert forms is a textbook example of convergent evolution. Like jerboas, ...
Second Grade Plant Life Cycles - Shasta County Office of Education
... The formation of viable seeds is a plants primary goal: their dispersal to a favorable location is the next assignment. Plants don't move, so how can seeds travel? Among flowering plants, it is at this stage that the seed container plays a vital role, whether it be an apple, an acorn, or a coconut. ...
... The formation of viable seeds is a plants primary goal: their dispersal to a favorable location is the next assignment. Plants don't move, so how can seeds travel? Among flowering plants, it is at this stage that the seed container plays a vital role, whether it be an apple, an acorn, or a coconut. ...
51 papers with abstracts
... the individual density was low, yielding only 1.2 baboons/ km(2). The groups were small, comprising on average 15 individuals, and the proportion of 1 male groups (50 - 63%) was remarkably high. One-male groups were more female biased than multi-male groups. The baboons were highly frugivorous, spen ...
... the individual density was low, yielding only 1.2 baboons/ km(2). The groups were small, comprising on average 15 individuals, and the proportion of 1 male groups (50 - 63%) was remarkably high. One-male groups were more female biased than multi-male groups. The baboons were highly frugivorous, spen ...
Weed Control by Species: Elkhorn Slough National Estuarine
... increase in the thistle population (Pitcher and Russo 1988). Carduus reproduces only by seed. Seeds start to germinate in the fall with the first effective rain (UCDANR 1996 reports germination beginning in April), grow through the winter as rosettes, and produce flowering stalks in the late spring ...
... increase in the thistle population (Pitcher and Russo 1988). Carduus reproduces only by seed. Seeds start to germinate in the fall with the first effective rain (UCDANR 1996 reports germination beginning in April), grow through the winter as rosettes, and produce flowering stalks in the late spring ...
FACTORS AFFECTING POLLINATION AND SEED SET OF A RARE
... that are deposited on plant stigmas, and plants may experience pollen deficiencies (pollen limitation) due to a variety of factors (Proctor 1996). Patches that are sparsely distributed may experience pollen limitation as pollinators are less attracted to small or isolated patches (Groom 1998, Rathck ...
... that are deposited on plant stigmas, and plants may experience pollen deficiencies (pollen limitation) due to a variety of factors (Proctor 1996). Patches that are sparsely distributed may experience pollen limitation as pollinators are less attracted to small or isolated patches (Groom 1998, Rathck ...
Cuscuta epithymum Murray - CLIMBERS
... Pollinator: Cuscuta epithymum is capable of both cross-pollination and self- pollination. Many different species of insects may contribute to pollination. One study indicated that ants were some of the main pollinators, while another observed visits to the flowers by species of bees, wasps, flies an ...
... Pollinator: Cuscuta epithymum is capable of both cross-pollination and self- pollination. Many different species of insects may contribute to pollination. One study indicated that ants were some of the main pollinators, while another observed visits to the flowers by species of bees, wasps, flies an ...
Angiosperms or Flowering Plants the phylum Magnoliophyta
... Nectaries often near base of stamens produce nectar reward for visitors who will move pollen (‘ ...
... Nectaries often near base of stamens produce nectar reward for visitors who will move pollen (‘ ...
Cotton-Fruit-Development-The-Square
... into daughter cells that either continue to replicate or start the slow change into recognizable plant parts. The fruiting branch meristems (a 40x magnification pictured at right), responsible for the development of fruit, are located in the axils of mainstem leaves, above node 5 or 6. Once a plant ...
... into daughter cells that either continue to replicate or start the slow change into recognizable plant parts. The fruiting branch meristems (a 40x magnification pictured at right), responsible for the development of fruit, are located in the axils of mainstem leaves, above node 5 or 6. Once a plant ...
Ecology of Banksia
![](https://commons.wikimedia.org/wiki/Special:FilePath/Banksia_integrifolia_with_lorikeet_Waverley_email.jpg?width=300)
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.