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aggregated seed arrival alters plant diversity in
... unclear but seed dispersal is likely to play an important role. In general, seed dispersal is a non-linear, decreasing function of distance with the majority of seeds clustered near the maternal plant with a few long-distance, dispersing seeds (Cousens et al. 2008). For example, Quinn et al. (2011) ...
... unclear but seed dispersal is likely to play an important role. In general, seed dispersal is a non-linear, decreasing function of distance with the majority of seeds clustered near the maternal plant with a few long-distance, dispersing seeds (Cousens et al. 2008). For example, Quinn et al. (2011) ...
B: Chapter 4: Plant Reproduction
... The Moss Life Cycle You recognize mosses as green, lowgrowing masses of plants. This is the gametophyte stage, which produces the sex cells. But the next time you see some moss growing, get down and look at it closely. If you see any brownish stalks growing up from the tip of the gametophyte plants ...
... The Moss Life Cycle You recognize mosses as green, lowgrowing masses of plants. This is the gametophyte stage, which produces the sex cells. But the next time you see some moss growing, get down and look at it closely. If you see any brownish stalks growing up from the tip of the gametophyte plants ...
Ecology of Vertebrate Animals in Relation to Chaparral Fire in the
... and the actions of animals were observed. There was very little evidence of direct mortality among any of the vertebrates, most of them escaping the heat in one way or another. The woodrat was perhaps the most vulnerable species because of its dependence on houses made of dry twigs. However, in the ...
... and the actions of animals were observed. There was very little evidence of direct mortality among any of the vertebrates, most of them escaping the heat in one way or another. The woodrat was perhaps the most vulnerable species because of its dependence on houses made of dry twigs. However, in the ...
Plant reproduction - The Physics Teacher
... another flower on the same plant e.g. cereals. Cross pollination ensures seeds show more variation and vigour. It may be brought about by wind or animals. ...
... another flower on the same plant e.g. cereals. Cross pollination ensures seeds show more variation and vigour. It may be brought about by wind or animals. ...
2006plantecol
... size of 986 m2. Ring analysis of A. saccharum saplings determined that all gaps were in the range of 2–5 years old, with a mean of 4.0 years. Local soils typically are sand or sandy loams beneath a <50 cm organic-rich surface layer. Nomenclature follows Morton and Venn (1990). Experimental species S ...
... size of 986 m2. Ring analysis of A. saccharum saplings determined that all gaps were in the range of 2–5 years old, with a mean of 4.0 years. Local soils typically are sand or sandy loams beneath a <50 cm organic-rich surface layer. Nomenclature follows Morton and Venn (1990). Experimental species S ...
Austral Toad-flax (Thesium australe) - accessible
... with 1-30 branched stems up to 60 cm long. The leaves are sessile, linear and acute, mostly 1-3 cm long with a decurrent midrib. The lowest leaves are scale-like. The flowers are solitary in the leaf axils, borne on a peduncle (1-3 mm long) which is united with the leaf bases. Two opposite, linear b ...
... with 1-30 branched stems up to 60 cm long. The leaves are sessile, linear and acute, mostly 1-3 cm long with a decurrent midrib. The lowest leaves are scale-like. The flowers are solitary in the leaf axils, borne on a peduncle (1-3 mm long) which is united with the leaf bases. Two opposite, linear b ...
Austral Toad Flax
... with 1-30 branched stems up to 60 cm long. The leaves are sessile, linear and acute, mostly 1-3 cm long with a decurrent midrib. The lowest leaves are scale-like. The flowers are solitary in the leaf axils, borne on a peduncle (1-3 mm long) which is united with the leaf bases. Two opposite, linear b ...
... with 1-30 branched stems up to 60 cm long. The leaves are sessile, linear and acute, mostly 1-3 cm long with a decurrent midrib. The lowest leaves are scale-like. The flowers are solitary in the leaf axils, borne on a peduncle (1-3 mm long) which is united with the leaf bases. Two opposite, linear b ...
Timeless beauties - yourlifestyle.tv
... Rhododendrons are a diverse group with over 1,000 different wild species – and that doesn’t include the countless number of hybrids. They range in habit from ground-covering alpine forms to big trees. The flowers vary enormously too and come in shades of white, yellow, pink, purple, magenta, orange ...
... Rhododendrons are a diverse group with over 1,000 different wild species – and that doesn’t include the countless number of hybrids. They range in habit from ground-covering alpine forms to big trees. The flowers vary enormously too and come in shades of white, yellow, pink, purple, magenta, orange ...
Introduction - Species Plantarum Programme
... The chances of completing such a task are therefore slim, judged on historical precedent. Even with the strength of the French and German botanical world behind them, and with their undoubted mastery of the subject, the de Candolles and Engler were unable to take the task to its conclusion. Why then ...
... The chances of completing such a task are therefore slim, judged on historical precedent. Even with the strength of the French and German botanical world behind them, and with their undoubted mastery of the subject, the de Candolles and Engler were unable to take the task to its conclusion. Why then ...
community context of an obligate mutualism
... Abstract. Obligate pollination mutualisms have been central to our understanding of the ecology and evolution of mutualisms. Although usually viewed as pairwise interactions, obligate mutualists also interact with other community members that may impact the mutualism. In this study, we examined the ...
... Abstract. Obligate pollination mutualisms have been central to our understanding of the ecology and evolution of mutualisms. Although usually viewed as pairwise interactions, obligate mutualists also interact with other community members that may impact the mutualism. In this study, we examined the ...
Lambley SPRING 2012.indd
... I heard a terribly sad story the other day. A vegetable grower who supplies local farmers markets planted two thousand open pollinated, “heritage” Brussels sprouts seedlings. After nurturing, watering, weeding and feeding these plants for the best part of eight months his total crop of sprouts was n ...
... I heard a terribly sad story the other day. A vegetable grower who supplies local farmers markets planted two thousand open pollinated, “heritage” Brussels sprouts seedlings. After nurturing, watering, weeding and feeding these plants for the best part of eight months his total crop of sprouts was n ...
Chapter 30
... imperfect flowers on the same plant. In dioecious species, a plant produces either megasporangiate or microsporangiate flowers but not both. ...
... imperfect flowers on the same plant. In dioecious species, a plant produces either megasporangiate or microsporangiate flowers but not both. ...
Viburnum carlesii - Koreanspice Viburnum (Adoxaceae)
... -V. carlesii 'Cayuga' - noted for its larger inflorescences that do not open all at once, and thus having pink buds and white flowers on the same inflorescence during the early flowering period, but it should be more prominently noted for its extremely dark-green, shiny, less pubescent, and larger l ...
... -V. carlesii 'Cayuga' - noted for its larger inflorescences that do not open all at once, and thus having pink buds and white flowers on the same inflorescence during the early flowering period, but it should be more prominently noted for its extremely dark-green, shiny, less pubescent, and larger l ...
Indoor Seed Starting 101
... he seeds we planted never sprouted. What went wrong? A: Poor germination can be the result of keeping the potting mix too wet, when seeds rot before they sprout. Make sure the mix stays consistently moist but never soggy. Promptly empty any water that drains out of the containers after watering a ...
... he seeds we planted never sprouted. What went wrong? A: Poor germination can be the result of keeping the potting mix too wet, when seeds rot before they sprout. Make sure the mix stays consistently moist but never soggy. Promptly empty any water that drains out of the containers after watering a ...
Is farther seed dispersal better?
... paradigm holds that species with farther seed dispersal are more successful in avoiding mortality than are species with short-distance dispersal, then the PRC in species with shortdistance dispersal should show the strongest shifts of the PRC away from conspecific adults (escape hypothesis), towards ...
... paradigm holds that species with farther seed dispersal are more successful in avoiding mortality than are species with short-distance dispersal, then the PRC in species with shortdistance dispersal should show the strongest shifts of the PRC away from conspecific adults (escape hypothesis), towards ...
What do plants need to grow?
... Have students plant both the wet and dry seeds. After developing a hypothesis, have students carefully monitor each seed’s germination rate. Record visual observations and theorize how soaking a seed in water may affect its germination. Learn how to identify whether a plant is a monocot or a dicot w ...
... Have students plant both the wet and dry seeds. After developing a hypothesis, have students carefully monitor each seed’s germination rate. Record visual observations and theorize how soaking a seed in water may affect its germination. Learn how to identify whether a plant is a monocot or a dicot w ...
Angiosperms and the Flower
... attached below the receptacle of the flower. The receptacle is the expanded base of the flower to which the other flower parts are attached. Note that the ovary of the gladiola appears to be sunken into the receptacle and lies below the other flower parts. It is described as an inferior ovary, refer ...
... attached below the receptacle of the flower. The receptacle is the expanded base of the flower to which the other flower parts are attached. Note that the ovary of the gladiola appears to be sunken into the receptacle and lies below the other flower parts. It is described as an inferior ovary, refer ...
Importance of fragmentation-tolerant species as seed
... habitat fragmentation reduced seed survival or seedling establishment for certain plants (Santos and Tellerı́a 1994; Asquith et al. 1997, 1999; Cordeiro and Howe 2001, 2003). Wright et al. (2000) and Wright and Duber (2001) found that a loss of seed predators and dispersers in fragmented or poached ...
... habitat fragmentation reduced seed survival or seedling establishment for certain plants (Santos and Tellerı́a 1994; Asquith et al. 1997, 1999; Cordeiro and Howe 2001, 2003). Wright et al. (2000) and Wright and Duber (2001) found that a loss of seed predators and dispersers in fragmented or poached ...
Astrantia, Astrantia major
... established plants in early spring or fall. Seed needs to be cold stratified for 2-3 months in order to germinate, most easily accomplished by sowing directly in the garden in early fall, although they can be started Astrantia grows best in rich soil in part shade. indoors about 6 months before tran ...
... established plants in early spring or fall. Seed needs to be cold stratified for 2-3 months in order to germinate, most easily accomplished by sowing directly in the garden in early fall, although they can be started Astrantia grows best in rich soil in part shade. indoors about 6 months before tran ...
6th Grade Lesson Plans - Community and School Garden Program
... Introduce seed experiment- use lima beans for each class as they have the shortest sprouting time and you can really alter the orientation of the seed. Teacher will question students on all the variables that might effect the growth of a seed, write all mentioned on board for class to see. The varia ...
... Introduce seed experiment- use lima beans for each class as they have the shortest sprouting time and you can really alter the orientation of the seed. Teacher will question students on all the variables that might effect the growth of a seed, write all mentioned on board for class to see. The varia ...
Forecasting pollination declines through DNA barcoding
... not as simple with plants because at least two gene fragments, typically rbcL and matK, are required to obtain levels of accuracy above 70% (Pei et al., 2015). Thus, species-level discrimination is more difficult for closely-related species of plants, especially in instances where hybridization occu ...
... not as simple with plants because at least two gene fragments, typically rbcL and matK, are required to obtain levels of accuracy above 70% (Pei et al., 2015). Thus, species-level discrimination is more difficult for closely-related species of plants, especially in instances where hybridization occu ...
Animals as Seed Dispersers
... members of the family Lauraceae larger fruits may be relatively more elongated under selection for smaller minimum diameter. This would increase the diversity of frugivores able to eat the fruits with relatively large seed mass. At the other end of the spectrum, many fruits have very small seeds. Us ...
... members of the family Lauraceae larger fruits may be relatively more elongated under selection for smaller minimum diameter. This would increase the diversity of frugivores able to eat the fruits with relatively large seed mass. At the other end of the spectrum, many fruits have very small seeds. Us ...
The Structure and Development of Eriocaulon septangulare With.
... Eriocaulon septangulare With., the subject of the present study, is a small, submerged aquatic plant, the sole European representative of a large genus of well over two hundred species, the great majority of which are plants of swampy soils, with a wide distribution in the tropical and subtropical r ...
... Eriocaulon septangulare With., the subject of the present study, is a small, submerged aquatic plant, the sole European representative of a large genus of well over two hundred species, the great majority of which are plants of swampy soils, with a wide distribution in the tropical and subtropical r ...
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.