reproductive ecology of an endemic plant, astragalus australis var
... study was to describe the reproductive ecology of Astragalus australis (L.) Lam. var. olympicus Isely, a local endemic of the Olympic Mountains, Washington (Buckingham et al., 1995), from flowering to seed dispersal to increase baseline information on its biology and identify deficiencies in its cap ...
... study was to describe the reproductive ecology of Astragalus australis (L.) Lam. var. olympicus Isely, a local endemic of the Olympic Mountains, Washington (Buckingham et al., 1995), from flowering to seed dispersal to increase baseline information on its biology and identify deficiencies in its cap ...
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... and Safriel, 1985). Furthermore, fruit removal is highly habitat-dependent, as shown by Herrera (1995), who found that fruitremoval success is much higher in lowland habitats (mean = 90.2%) than in highlands (mean = 62.1%) in the western Mediterranean region. These studies reveal that many factors c ...
... and Safriel, 1985). Furthermore, fruit removal is highly habitat-dependent, as shown by Herrera (1995), who found that fruitremoval success is much higher in lowland habitats (mean = 90.2%) than in highlands (mean = 62.1%) in the western Mediterranean region. These studies reveal that many factors c ...
Animals as Seed Dispersers
... the tropics. Seeds from these fruits are more likely to be defecated than regurgitated and are more likely to escape mammalian predation. Placement of seeds or fruits on a plant may restrict access to some animals. This is especially important for many birddisseminated fruits that bear seeds within ...
... the tropics. Seeds from these fruits are more likely to be defecated than regurgitated and are more likely to escape mammalian predation. Placement of seeds or fruits on a plant may restrict access to some animals. This is especially important for many birddisseminated fruits that bear seeds within ...
Ecology and conservation of small carnivores in tropical rainforests
... Apart from the abundance of resources, diet choice may also depend on fruit characteristics— morphological or nutritive. Traits influencing the vertebrate species that plants attract include fruit color, size (diameter), pulp thickness, number of seeds, and persistence of fruits on plants [5, 12-16] ...
... Apart from the abundance of resources, diet choice may also depend on fruit characteristics— morphological or nutritive. Traits influencing the vertebrate species that plants attract include fruit color, size (diameter), pulp thickness, number of seeds, and persistence of fruits on plants [5, 12-16] ...
Pollination biology of the crypto-viviparous Avicennia species
... geitonogamy. Clarke & Meyerscough (1991) reported that it is pollinated by a variety of insects in Australia. These authors also reported that A. marina is visited by ants, wasps, bugs, flies, bee-flies, cantherid beetles, and moths but the most common visitor is Apis mellifera. Tomlinson (1986) des ...
... geitonogamy. Clarke & Meyerscough (1991) reported that it is pollinated by a variety of insects in Australia. These authors also reported that A. marina is visited by ants, wasps, bugs, flies, bee-flies, cantherid beetles, and moths but the most common visitor is Apis mellifera. Tomlinson (1986) des ...
evaluating perennial candidates for domestication
... The range of habitats in which these widely distributed perennial species persist leads us to predict that, like the wild annual sunflower, they harbour the genetic variation necessary for domestication. New mutations may not be required. Consistent with this prediction, we have found a great deal o ...
... The range of habitats in which these widely distributed perennial species persist leads us to predict that, like the wild annual sunflower, they harbour the genetic variation necessary for domestication. New mutations may not be required. Consistent with this prediction, we have found a great deal o ...
(Primulaceae), a Wild
... explain the decline of L. minoricensis or its limited range. Seed production in this species is high (best estimates suggest that a single plant can produce up to 3300 seeds) and should be free of year-to-year ¯uctuations (in the absence of ¯ower or fruit predators) through its sel®ng breeding syste ...
... explain the decline of L. minoricensis or its limited range. Seed production in this species is high (best estimates suggest that a single plant can produce up to 3300 seeds) and should be free of year-to-year ¯uctuations (in the absence of ¯ower or fruit predators) through its sel®ng breeding syste ...
Apparent competition with an invasive plant hastens the extinction of
... consumed’’ (all racemes intact). Plants ranged from 1.4 to 143.7 m away from A. arenaria. We pooled data over years and used logistic regression to test whether consumption of L. tidestromii decreased with increasing distance from A. arenaria. To measure the incidence of fruit consumption, we also e ...
... consumed’’ (all racemes intact). Plants ranged from 1.4 to 143.7 m away from A. arenaria. We pooled data over years and used logistic regression to test whether consumption of L. tidestromii decreased with increasing distance from A. arenaria. To measure the incidence of fruit consumption, we also e ...
Apparent competition with an invasive plant hastens the extinction of
... consumed’’ (all racemes intact). Plants ranged from 1.4 to 143.7 m away from A. arenaria. We pooled data over years and used logistic regression to test whether consumption of L. tidestromii decreased with increasing distance from A. arenaria. To measure the incidence of fruit consumption, we also e ...
... consumed’’ (all racemes intact). Plants ranged from 1.4 to 143.7 m away from A. arenaria. We pooled data over years and used logistic regression to test whether consumption of L. tidestromii decreased with increasing distance from A. arenaria. To measure the incidence of fruit consumption, we also e ...
2010rat4
... invasive plants in the Hawaiian Islands for at least the previous 5 years. I chose 25 plant species based on the highest frequencies listed with the following two constraints: First, to maximize phylogenetic diversity, no more than two species per family and one species per genus was selected. Secon ...
... invasive plants in the Hawaiian Islands for at least the previous 5 years. I chose 25 plant species based on the highest frequencies listed with the following two constraints: First, to maximize phylogenetic diversity, no more than two species per family and one species per genus was selected. Secon ...
A seven-year study of individual variation in fruit
... plebejus), swallow lauraceous fruits entire, regurgitating the seeds 15-60 min later. Only one to five fruits (depending upon fruit and bird size) are consumed per feeding bout. Quantifying reproduction in the Lauraceae Since June 1980I have monitored reproduction in ...
... plebejus), swallow lauraceous fruits entire, regurgitating the seeds 15-60 min later. Only one to five fruits (depending upon fruit and bird size) are consumed per feeding bout. Quantifying reproduction in the Lauraceae Since June 1980I have monitored reproduction in ...
2010rat3
... Tracking tunnel activity was high in the interior locations of the trapping grid when distances from the perimeter to the interior were less than 100m during the fall and winter months. The tracking tunnels appear to be potentially tracking the natural cycle of rat activity outside of the grid b ...
... Tracking tunnel activity was high in the interior locations of the trapping grid when distances from the perimeter to the interior were less than 100m during the fall and winter months. The tracking tunnels appear to be potentially tracking the natural cycle of rat activity outside of the grid b ...
2011rat2
... ubiquitous and problematic species introduced to islands; more than 80% of the world’s island groups have been invaded. Introduced rats (black rat, Rattus rattus; Norway rat, R. norvegicus; Pacific rat, R. exulans) are well known as seed predators but are often overlooked as potential seed disperser ...
... ubiquitous and problematic species introduced to islands; more than 80% of the world’s island groups have been invaded. Introduced rats (black rat, Rattus rattus; Norway rat, R. norvegicus; Pacific rat, R. exulans) are well known as seed predators but are often overlooked as potential seed disperser ...
Seed characteristics and susceptibility to pathogen attack in tree
... about the relationships between seed traits and susceptibility to disease because these previous investigations have typically involved only one or two species. In one of the few exceptions, Augspurger and Kelly (1984) found no significant relationship between seed size and pathogen attack on new se ...
... about the relationships between seed traits and susceptibility to disease because these previous investigations have typically involved only one or two species. In one of the few exceptions, Augspurger and Kelly (1984) found no significant relationship between seed size and pathogen attack on new se ...
Convergence in Morphological Patterns and Community
... are more similar than would be expected if the species’ sizes were independently distributed according to a loguniform distribution. Boecklen and NeSmith (1985) showed that points distributed log-normally give very similar B-D statistics. Throughout, we use three B-D statistics: G1, n, the ratio of ...
... are more similar than would be expected if the species’ sizes were independently distributed according to a loguniform distribution. Boecklen and NeSmith (1985) showed that points distributed log-normally give very similar B-D statistics. Throughout, we use three B-D statistics: G1, n, the ratio of ...
Direct Seeding of Woody Plants as an
... reach a goal of 10 000 plantlets per hectare in the first year, tending in the long term towards three distinct types of ecosystem: low shrubbery, high shrubbery and oak. • Produce a technico-economic assessment of the techniques tested. Materials and Method The available technical and scientific li ...
... reach a goal of 10 000 plantlets per hectare in the first year, tending in the long term towards three distinct types of ecosystem: low shrubbery, high shrubbery and oak. • Produce a technico-economic assessment of the techniques tested. Materials and Method The available technical and scientific li ...
Pollination Biology
... Animals are often more efficient transporters of pollen than wind, and they can be found where there is little wind (dense tropical forests). Animals promote cross-pollination (thus plant vigor) by moving between plants. ...
... Animals are often more efficient transporters of pollen than wind, and they can be found where there is little wind (dense tropical forests). Animals promote cross-pollination (thus plant vigor) by moving between plants. ...
redroot pigweed Amaranthus retroflexus L.
... reduces the availability of light, moisture, and nutrients for surrounding plants in agricultural fields. It is a pioneer species and likely reduces nutrients and moisture in disturbed areas as well. However, this species is often replaced by other vegetation in one to two years if natural successio ...
... reduces the availability of light, moisture, and nutrients for surrounding plants in agricultural fields. It is a pioneer species and likely reduces nutrients and moisture in disturbed areas as well. However, this species is often replaced by other vegetation in one to two years if natural successio ...
Seed Collecting - Office of Environment and Heritage
... Care needs also to be taken not to encourage too narrow a gene pool, as this may also affect the long-term survival of a species. This needs consideration if species being collected are present in low numbers. How local is local? It is rarely possible to be precise about distances, but an indication ...
... Care needs also to be taken not to encourage too narrow a gene pool, as this may also affect the long-term survival of a species. This needs consideration if species being collected are present in low numbers. How local is local? It is rarely possible to be precise about distances, but an indication ...
2001japplecol
... in two types of communities: wetland and upland meadows. In order to look for recurring patterns, we used a set of 30 plant species drawn from a wide range of taxonomic groups. Analyses in which species are treated as independent data points can be useful in demonstrating community-level ecological ...
... in two types of communities: wetland and upland meadows. In order to look for recurring patterns, we used a set of 30 plant species drawn from a wide range of taxonomic groups. Analyses in which species are treated as independent data points can be useful in demonstrating community-level ecological ...
Consortium for Educational Communication
... b. Blastochory (dispersal via runners) – Here propagules find suitable growing sites by growth processes, e.g. via scions (vegetative shoots) or pedicels, as in Cymbalaria muralis. c. Herpochory (short distance transport via active creeping) – The best example of this is Trifolium stellatum in which ...
... b. Blastochory (dispersal via runners) – Here propagules find suitable growing sites by growth processes, e.g. via scions (vegetative shoots) or pedicels, as in Cymbalaria muralis. c. Herpochory (short distance transport via active creeping) – The best example of this is Trifolium stellatum in which ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... Fleshy fruits of tropical forest plants that are consumed by animals occur in different sizes, shapes, colors, and chemical composition [1] and this are exploited in different ways by their animal visitors; for example, during fruit development stage specifically from ripening to dispersal, fruits a ...
... Fleshy fruits of tropical forest plants that are consumed by animals occur in different sizes, shapes, colors, and chemical composition [1] and this are exploited in different ways by their animal visitors; for example, during fruit development stage specifically from ripening to dispersal, fruits a ...
Download Frugivory by introduced black rats (Rattus rattus) promotes dispersal of invasive plant seeds
... for at least one week, during which time they were fed a diet of mixed seeds (e.g., corn, sunflower, wheat, barley, oats, sorghum) and occasionally wedges of fruit (tangerine). Rats were checked daily to ensure there was ample food and fresh water, and to clean urine/fecal trays. Feeding trials were ...
... for at least one week, during which time they were fed a diet of mixed seeds (e.g., corn, sunflower, wheat, barley, oats, sorghum) and occasionally wedges of fruit (tangerine). Rats were checked daily to ensure there was ample food and fresh water, and to clean urine/fecal trays. Feeding trials were ...
Durian Assign2 Ex
... that trees that produce large seeds, for instance durian plants, rely greatly on large frugivores to disperse these seeds. Many of these large dispersers are disappearing from the wild and scientists are interested in how this will affect the tree species. Although the seeds of both types of fruit a ...
... that trees that produce large seeds, for instance durian plants, rely greatly on large frugivores to disperse these seeds. Many of these large dispersers are disappearing from the wild and scientists are interested in how this will affect the tree species. Although the seeds of both types of fruit a ...
Darwin`s Finches
... 1973 Beak size of G. fortis small on island (“small-beaked”). Lack says (no evidence) due to absence of small ground finch (G. fulignosa). ...
... 1973 Beak size of G. fortis small on island (“small-beaked”). Lack says (no evidence) due to absence of small ground finch (G. fulignosa). ...
Cucurbita
Cucurbita (Latin for gourd) is a genus of herbaceous vine in the gourd family, Cucurbitaceae, also known as cucurbits, native to the Andes and Mesoamerica. Five species are grown worldwide for their edible fruit, variously known as squash, pumpkin, or gourd depending on species, variety, and local parlance, and for their seeds. First cultivated in the Americas before being brought to Europe by returning explorers after their discovery of the New World, plants in the genus Cucurbita are important sources of human food and oil. Other kinds of gourd, also called bottle-gourds, are native to Africa and belong to the genus Lagenaria, which is in the same family and subfamily as Cucurbita but in a different tribe. These other gourds are used as utensils or vessels, and their young fruits are eaten much like those of Cucurbita species.Most Cucurbita species are herbaceous vines that grow several meters in length and have tendrils, but non-vining ""bush"" cultivars of C. pepo and C. maxima have also been developed. The yellow or orange flowers on a Cucurbita plant are of two types: female and male. The female flowers produce the fruit and the male flowers produce pollen. Many North and Central American species are visited by specialist bee pollinators, but other insects with more general feeding habits such as honey bees also visit. The fruits of the Cucurbita genus are good sources of several nutrients such as vitamin A, vitamin C, niacin, folic acid, and iron, and like all plant products are free of cholesterol. The plants contain the toxins cucurbitin, cucurmosin, and cucurbitacin. There is some disagreement about how to handle the taxonomy of the genus; the number of species accepted by different specialists varies from 13 to 30. In addition, the ancestry of some of the species that have been cultivated for millennia is uncertain. The five domesticated species are Cucurbita argyrosperma, C. ficifolia, C. maxima, C. moschata, and C. pepo. All of these can be treated as winter squash because the full-grown fruits can be stored for months; however, C. pepo includes some cultivars that are better used only as summer squash.Cucurbita fruits have played a role in human culture for at least 2,000 years. They are often represented in Moche ceramics from Peru. After Christopher Columbus's arrival in the New World, paintings of squashes started to appear in Europe early in the sixteenth century. Among other uses, extracts are used in cosmetics for dry and sensitive skin. The fruits have many culinary uses including pumpkin pie, biscuits, bread, desserts, puddings, beverages, and soups. Pumpkins and other Cucurbita fruits are celebrated in festivals and in flower and vegetable shows in many countries.