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ecologists say dispersal ability linked to plants' life cycles




a teasel inflorescence with spiny bracts. utah state university ecologist noelle beckman says seed dispersal is an essential, yet overlooked process of plant demography, but it’s difficult to empirically observe, measure and assess its full influence. credit: mary-ann muffolettothough mostly roote...



snacking snakes act as 'ecosystem engineers' in seed dispersal




ithaca, n.y. - despite the bad rap snakes often get, they are more central to ecology than most people realize. new research reveals that snakes might even play a key role in dispersing plant seeds.it's long been known that some plants disperse their seeds by "hitchhiking" on animals, with the seeds...



snacking snakes act as 'ecosystem engineers' in seed dispersal




credit: cc0 public domaindespite the bad rap snakes often get, they are more central to ecology than most people realize. new research reveals that snakes might even play a key role in dispersing plant seeds. it's long been known that some plants disperse their seeds by "hitchhiking" on animals, wit...



how improved valves let grasses 'breathe,' cope with climate change




palo alto, ca--new work from a joint team of plant biologists and ecologists from carnegie and stanford university has uncovered the factor behind an important innovation that makes grasses--both the kind that make up native prairies and the kind we've domesticated for crops--among the most-common a...



how improved valves let grasses 'breathe,' cope with climate change




this image shows the four-celled stomata found in grasses, featuring two dumbbell-shaped guard cells surrounded by two subsidiary cells. scientists attribute the tremendous success of grasses to this valve structure, which is capable of more-sensitive and precise responsiveness to the environment an...



plants repeatedly got rid of their ability to obtain their own nitrogen




enlarge/ plants.james petts / flickrshare this storyplants, like all living things, need nitrogen to build amino acids and other essential biomolecules. although nitrogen is the most abundant element in air, the molecular form of nitrogen found there is largely unreactive. to become useful to plants...



tracing a plant's steps: following seed dispersal using chloroplast dna




plants spread their seeds across the landscape to colonize new areas, but it's difficult and expensive for biologists to trace their movements. now, researchers at portland state university have developed a new technique to sequence chloroplast dna from hundreds of plants at once, to learn more abou...



extinction of alpine plants may remain undetectable for a long time




how do alpine plants react to warmer climatic conditions? due to their longevity, the plants may survive longer than expected in their habitats, but produce offspring that are increasingly maladapted. population size may decrease faster than the contraction of the species range, as uzh researchers s...



duck faeces shed light on plant seed dispersal




mallards are among the most abundant and widespread duck species in the world, yet little attention has been paid to date to their role in spreading plant seeds. a new study in the journal of ecology reveals a number of plants that were not previously known to be part of the diet of waterbirds. mall...



periodic table of ecological niches could aid in predicting effects of climate c




image: a thorny devil (moloch horridus) in the reptile house at alice springs desert park, alice springs, australia. view more credit: stu's images.a group of ecologists has started creating a periodic table of ecological niches similar to chemistry's periodic table. and just as chemists have used...



marine vegetation can mitigate ocean acidification, study finds




marine plants and seaweeds in shallow coastal ecosystems can play a key role in alleviating the effects of ocean acidification, and their robust population in shoreline environments could help preserve declining shellfish life, according to a study by university of california, irvine ecologists.



'trojan fish': invasive rabbitfish spread invasive species




the mystery of how some invasive species may rapidly invade and spread in the world's oceans without assistance by marine traffic may have been partly solved by a new mediterranean sea study. red sea rabbitfish invaded the mediterranean through the suez canal in the 20th century. soon after, more th...



how do plants make oxygen? ask cyanobacteria




the ability to generate oxygen through photosynthesis—that helpful service performed by plants and algae, making life possible for humans and animals on earth—evolved just once, roughly 2.3 billion years ago, in certain types of cyanobacteria. this planet-changing biological invention has never ...



climate change may confuse plant dormancy cycles




perennial plants in the midwest are well attuned to their surroundings. they hunker down all winter in a dormant state, just waiting for a sign that it's safe to unfurl their first tender leaves or flower buds. for many plants, the cue is a sustained warming trend, but day length also factors into t...



how improved valves let grasses 'breathe,' cope with climate change




new work from a joint team of plant biologists and ecologists from carnegie and stanford university has uncovered the factor behind an important innovation that makes grasses—both the kind that make up native prairies and the kind we've domesticated for crops—among the most-common and widespread...



develop better daily habits by making them cycles




cycles helps you build healther, better habits. when you first launch the app, cycles will walk you through setting up your first habit. you can type in whatever you want to do on a regular basis throughout the day. you then set how many times a day you'll do that, and which days. after that, you de...



develop better daily habits by making them cycles




cycles helps you build healther, better habits. when you first launch the app, cycles will walk you through setting up your first habit. you can type in whatever you want to do on a regular basis throughout the day. you then set how many times a day you'll do that, and which days. after that, you de...



earning a living in a changing climate -- the plant perspective




image: the spatule-leaved soapwort (saponaria bellidifolia) resorts to shrinkage to persist in less favorable climates. view more credit: trinity college dublin.there are many ways to make a living in a suitable climate but far fewer in a less suitable one. that may seem obvious for people living ...



how improved valves let grasses breathe and cope with climate change




new work from a joint team of plant biologists and ecologists from carnegie and stanford university has uncovered the factor behind an important innovation that makes grasses -- both the kind that make up native prairies and the kind we've domesticated for crops -- among the most-common and widespre...



temperature resilient crops now an 'achievable dream'




pod shatter is a major issue for farmers of oilseed rape worldwide who lose between 15-20 percent of yield on average per year due to prematurely dispersed seeds lost in the field. credit: john innes centrebreeding temperature-resilient crops is an "achievable dream" in one of the most important spe...



ecologists are drowning in sea of data. these tools could help




to assess the ocean's health, ecology's "rugged individualists" learned to get with the big data program. the post ecologists are drowning in sea of data. these tools could help appeared first on wired.



in harm's way: wolves may not risk 'prey switching' ecologists say




ecologists have long observed predators pursue disproportionately more of a plentiful prey species, and less of scarce prey, but change to the latter if it becomes relatively more abundant. known as "prey switching," this phenomenon is ecologically important, because it helps to stabilize wildlife p...



hydroelectric power plants have to be adapted for climate change




of all the electricity produced in switzerland, 56 percent comes from hydropower. the life span of hydroelectric plants, which are massive and expensive to build and maintain, is measured in decades, yet the rivers and streams they depend on and the surrounding environment are ever-changing. these c...



ti cycles bets on market shift, moves from commuter cycles to recreational




ti cycles, the bicycle manufacturing and marketing arm of the murugappa group, is shifting its capabilities towards value-based, recreational and trendy urban cycles from those that simply meet commuting requirements. the company, which has launched its third bicycle manufacturing facility in rajpur...



visitors to cubbon park can hire gps-enabled cycles from jan 26




you can soon rent a cycle and pedal your way to heritage destinations in and around cubbon park.the tourism department and the namma cycle foundation are collaborating on cubbon trails, an initiative to promote tourism and cycling. cycle stations will come up on january 26 near the park gates on m g...