Tiny ecosystem engineers: diversity and evolution of gall
... coevolutionary processes between them and Dr. Netta Dorchin and collaborators employed ...
... coevolutionary processes between them and Dr. Netta Dorchin and collaborators employed ...
The importance of niches for the maintenance of species diversity
... competitive ability or fitness differences11,15 (Fig. 1). Our theoretical approach predicts that without niche differences, species differ by several orders of magnitude in their per capita growth rates (Fig. 2a), which is sufficient for rapid competitive exclusion (Fig. 2b). For example, with 2007 ...
... competitive ability or fitness differences11,15 (Fig. 1). Our theoretical approach predicts that without niche differences, species differ by several orders of magnitude in their per capita growth rates (Fig. 2a), which is sufficient for rapid competitive exclusion (Fig. 2b). For example, with 2007 ...
Fregata andrewsi
... ■ THAILAND Deignan (1963) listed Christmas Island Frigatebird for both coasts of the country, although he may have been influenced by reports from Peninsular Malaysia where there are confirmed east-coast records; but there appear to be no confirmed records from the Gulf of Thailand (i.e. the Thai ea ...
... ■ THAILAND Deignan (1963) listed Christmas Island Frigatebird for both coasts of the country, although he may have been influenced by reports from Peninsular Malaysia where there are confirmed east-coast records; but there appear to be no confirmed records from the Gulf of Thailand (i.e. the Thai ea ...
Emerging Issues Regarding Non-Native Species for Aquaculture
... prompted a full-scale risk analysis that resulted in increased culture restrictions. These regulatory changes and the unfavorable attention this species received eliminated the small industry growing barramundi as a food fish. (Photo by D.B. Pouder and J.E. Hill). Regulators may mandate the use of b ...
... prompted a full-scale risk analysis that resulted in increased culture restrictions. These regulatory changes and the unfavorable attention this species received eliminated the small industry growing barramundi as a food fish. (Photo by D.B. Pouder and J.E. Hill). Regulators may mandate the use of b ...
Regent Honeyeater– profile
... The Speckled Warbler is a small well-camouflaged very heavily streaked grounddwelling bird related to the scrubwrens, reaching a length of 13cm. The back, wings and tail are grey-brown, with soft dark streaks. The black crown is distinctively streaked with buff. The underparts are pale and particula ...
... The Speckled Warbler is a small well-camouflaged very heavily streaked grounddwelling bird related to the scrubwrens, reaching a length of 13cm. The back, wings and tail are grey-brown, with soft dark streaks. The black crown is distinctively streaked with buff. The underparts are pale and particula ...
Tilman et al. Science 2001
... We tested the sampling hypothesis that the most productive species determined the effects of diversity (6, 9, 17) by retaining in analyses of year 2000 results only plots containing at least one of the nine species with the highest monoculture total biomass in 2000. Total biomass remained significan ...
... We tested the sampling hypothesis that the most productive species determined the effects of diversity (6, 9, 17) by retaining in analyses of year 2000 results only plots containing at least one of the nine species with the highest monoculture total biomass in 2000. Total biomass remained significan ...
The importance of niches for the maintenance of species diversity
... competitive ability or fitness differences11,15 (Fig. 1). Our theoretical approach predicts that without niche differences, species differ by several orders of magnitude in their per capita growth rates (Fig. 2a), which is sufficient for rapid competitive exclusion (Fig. 2b). For example, with 2007 ...
... competitive ability or fitness differences11,15 (Fig. 1). Our theoretical approach predicts that without niche differences, species differ by several orders of magnitude in their per capita growth rates (Fig. 2a), which is sufficient for rapid competitive exclusion (Fig. 2b). For example, with 2007 ...
2003ecologyletters
... herbivore, neither larval mass of the survivors (F1,87 ¼ 1.280, P ¼ 0.269) nor larval mortality (t ¼ 1.189, d.f. ¼ 14, P ¼ 0.254) were affected by native vs. exotic origin. This result indicates that exotic species are no more resistant to herbivores than native congeners, although the mortality dat ...
... herbivore, neither larval mass of the survivors (F1,87 ¼ 1.280, P ¼ 0.269) nor larval mortality (t ¼ 1.189, d.f. ¼ 14, P ¼ 0.254) were affected by native vs. exotic origin. This result indicates that exotic species are no more resistant to herbivores than native congeners, although the mortality dat ...
PDF Full-text
... abundances, recognized as a fundamental question that, if answered, would substantially advance population and community ecology [19]. For example, a method was recently proposed to approach bi-partite plant-pollinator communities by considering each party as a resource for the other party [20]: pla ...
... abundances, recognized as a fundamental question that, if answered, would substantially advance population and community ecology [19]. For example, a method was recently proposed to approach bi-partite plant-pollinator communities by considering each party as a resource for the other party [20]: pla ...
Environmental Biology
... One of the key features of any ecological system is the capture and transformation of the energy that flows through the system. It does so only once, before it is degraded and lost as heat. Contrast this with nutrients and other resources that are capable of being recycled. 1.1. Energy fixation Life ...
... One of the key features of any ecological system is the capture and transformation of the energy that flows through the system. It does so only once, before it is degraded and lost as heat. Contrast this with nutrients and other resources that are capable of being recycled. 1.1. Energy fixation Life ...
Acclimation of Intertidal Crabs Duke University Marine Laboratory
... SVXOPSIS. Intertidal crabs are subjected to marked fluctuations in environmental factors. Temperature and salinity influence the distribution of organisms both on a latitudinal basis and along a subtidal to terrestrial gradient. These factors are operative on all stages of the life history. Resistan ...
... SVXOPSIS. Intertidal crabs are subjected to marked fluctuations in environmental factors. Temperature and salinity influence the distribution of organisms both on a latitudinal basis and along a subtidal to terrestrial gradient. These factors are operative on all stages of the life history. Resistan ...
Big T Wash Line New Outreach Ef for t Begins
... pets they no longer want or fish for future recreational fishing. Even though they might seem harmless, it is important to remember that turtles and fish, along with any other pets, should never be released into the wild because they harm the native species already living there. Once nonnative speci ...
... pets they no longer want or fish for future recreational fishing. Even though they might seem harmless, it is important to remember that turtles and fish, along with any other pets, should never be released into the wild because they harm the native species already living there. Once nonnative speci ...
meeting summary
... production and human social life. The system has also been suggested as a management tool. ...
... production and human social life. The system has also been suggested as a management tool. ...
An empirical evaluation of the African elephant as a focal species for
... We evaluated patterns of co-occurrence of large (> 1 kg) mammal species (nomenclature as in Kingdon, 1997) and guilds in a potential linkage in central Tanzania that links two of the largest reserve complexes in the world, the Ruaha and Selous ecosystems. Specifically, we sought to determine the deg ...
... We evaluated patterns of co-occurrence of large (> 1 kg) mammal species (nomenclature as in Kingdon, 1997) and guilds in a potential linkage in central Tanzania that links two of the largest reserve complexes in the world, the Ruaha and Selous ecosystems. Specifically, we sought to determine the deg ...
QUESTION: Review
... Would you be willing to decrease the amount of meat you consumed (e.g., eat lower on the food chain) in order to ...
... Would you be willing to decrease the amount of meat you consumed (e.g., eat lower on the food chain) in order to ...
Nantahala and Pisgah Forest Plan
... of ecozone state classes present across the southern Appalachians The greatest variation was present by multiple classes within high elevation red oak forest Young forest varies from a low of 4-5% of cove forest to a high of 14-18% of high elevation red oak forest Closed old growth forest varies fro ...
... of ecozone state classes present across the southern Appalachians The greatest variation was present by multiple classes within high elevation red oak forest Young forest varies from a low of 4-5% of cove forest to a high of 14-18% of high elevation red oak forest Closed old growth forest varies fro ...
In his 1967 work A Darwinian Approach to Plant Ecology, J
... mentioned above as well as the original hypothesis suggested by Harper led to the study of how competition can change the reproductive strategies of plants. Harper’s paper discussed his own work on differences between monoculture stands and mixed stands. In 1992, Wiener and Thomas used the above rel ...
... mentioned above as well as the original hypothesis suggested by Harper led to the study of how competition can change the reproductive strategies of plants. Harper’s paper discussed his own work on differences between monoculture stands and mixed stands. In 1992, Wiener and Thomas used the above rel ...
On the Links Between Managerial Actions, Keystone Species
... Within a specific ecological-economic system, each species is generally linked to and also depends on other species. In addition, each species also contributes to the overall unity of this ecological-economic system. Even so, although all species contribute to the functioning of an ecological-econom ...
... Within a specific ecological-economic system, each species is generally linked to and also depends on other species. In addition, each species also contributes to the overall unity of this ecological-economic system. Even so, although all species contribute to the functioning of an ecological-econom ...
Identifying Sentence Errors
... allowed on that parkway; moreover, it is a safe bet that one or more tall vehicles can be counted on to wander onto the roadway by mistake at least once a week. ...
... allowed on that parkway; moreover, it is a safe bet that one or more tall vehicles can be counted on to wander onto the roadway by mistake at least once a week. ...
Distributions of Communities in time
... time may be designated as a unit community. Within such an area and during such a period similarity in environmental selection tends toward similarity in vegetation.” “Since every community varies in structure, and since no two communities are precisely alike, or have genetic or dynamic connection, ...
... time may be designated as a unit community. Within such an area and during such a period similarity in environmental selection tends toward similarity in vegetation.” “Since every community varies in structure, and since no two communities are precisely alike, or have genetic or dynamic connection, ...
The effects of disturbance on trophic levels, food webs
... 18 had suffered range contractions that were greater than 20% and the remaining 25 had lost less than 20% of their range. It was very interesting to learn that some species such as Dall sheep (Ovis dalli) lost 50% of their range, yet the habitat within their former range has remained similar to w ...
... 18 had suffered range contractions that were greater than 20% and the remaining 25 had lost less than 20% of their range. It was very interesting to learn that some species such as Dall sheep (Ovis dalli) lost 50% of their range, yet the habitat within their former range has remained similar to w ...
Invasive Species: A Look at their Disastrous Effects on Ecosystems
... According to the United States Department of Agriculture, invasive plants are successful because many species produce large quantities of seed and thrive on disturbed soil. Their seeds are often distributed by birds, wind, or unaware humans, moving them great distances. Some invasive plant species h ...
... According to the United States Department of Agriculture, invasive plants are successful because many species produce large quantities of seed and thrive on disturbed soil. Their seeds are often distributed by birds, wind, or unaware humans, moving them great distances. Some invasive plant species h ...
Biotic Interactions in Ecosystems
... constantly interact to obtain food, water, sunlight, or habitat. • As a result of these interactions, organisms have special roles – or niches – in their ecosystem. ...
... constantly interact to obtain food, water, sunlight, or habitat. • As a result of these interactions, organisms have special roles – or niches – in their ecosystem. ...
First record of a tunnel breeding population of Pleurodeles waltl and
... found. The water was full of bat faeces and the density of sighted invertebrate preys was very low and probably different to that one outside the cave so it would be interesting to verify if the larvae would be able to complete their metamorphosis. The larvae we found had a small size, so we suspect ...
... found. The water was full of bat faeces and the density of sighted invertebrate preys was very low and probably different to that one outside the cave so it would be interesting to verify if the larvae would be able to complete their metamorphosis. The larvae we found had a small size, so we suspect ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.