Ecology and Evolution Affect Network Structure
... critical because each type of constraint can have a different impact on the stability (Memmott et al. 2007; Rezende et al. 2007b; Aizen et al. 2012) and evolution (Rezende et al. 2007a) of mutualistic networks. Here, in addition to comparing levels of specialization among disparate marine and terres ...
... critical because each type of constraint can have a different impact on the stability (Memmott et al. 2007; Rezende et al. 2007b; Aizen et al. 2012) and evolution (Rezende et al. 2007a) of mutualistic networks. Here, in addition to comparing levels of specialization among disparate marine and terres ...
Identification of Ecologically and Biologically Significant Areas
... facilitate using this framework – and many other aspects of spatial management. However a habitat classification system is not the same as identification of areas of Ecological and Biological Significance. Some patches of a particular habitat type may be Ecological and Biological Significant because ...
... facilitate using this framework – and many other aspects of spatial management. However a habitat classification system is not the same as identification of areas of Ecological and Biological Significance. Some patches of a particular habitat type may be Ecological and Biological Significant because ...
Mycorrhizal networks mediate overstorey
... strongly and positively with both leaf number and total leaf length. Final height, instead of height increment, was used for both species because initial heights were relatively small (2–4 cm). Seedlings that were browsed by deer and later produced new shoots were excluded from height growth compari ...
... strongly and positively with both leaf number and total leaf length. Final height, instead of height increment, was used for both species because initial heights were relatively small (2–4 cm). Seedlings that were browsed by deer and later produced new shoots were excluded from height growth compari ...
Spatial distribution and abundance of the giant tiger prawn
... were freshwater shrimps (Chang et al. 1998; GómezLemos and Campos 2008). Until now there are no records of such diseases within the native species in the Gulf of Urabá, but the arrival of new individuals of giant tiger prawn carrying one of these viruses cannot be ruled out. In conclusion, this was ...
... were freshwater shrimps (Chang et al. 1998; GómezLemos and Campos 2008). Until now there are no records of such diseases within the native species in the Gulf of Urabá, but the arrival of new individuals of giant tiger prawn carrying one of these viruses cannot be ruled out. In conclusion, this was ...
Seed Preferences of the Giant Kangaroo Rat (Dipodomys ingens) in
... plants and rodents in many types of ecosystems, these interactions are complex and depend on many other variables (Huntly 1991). Factors like seed dispersal and unharvested seed caches could have a positive effect the spread of prey grasses and forbs, but inhibition through seed predation and even d ...
... plants and rodents in many types of ecosystems, these interactions are complex and depend on many other variables (Huntly 1991). Factors like seed dispersal and unharvested seed caches could have a positive effect the spread of prey grasses and forbs, but inhibition through seed predation and even d ...
Spatial dynamics of Norwegian tetraonid populations
... outliers and removed from the time series. We analysed patterns of synchrony in population growth at three spatial scales. First, we pooled all the time series from each species, and investigated the national-level interspecific synchrony by constructing a matrix of pairwise Pearson cross-correlation ...
... outliers and removed from the time series. We analysed patterns of synchrony in population growth at three spatial scales. First, we pooled all the time series from each species, and investigated the national-level interspecific synchrony by constructing a matrix of pairwise Pearson cross-correlation ...
Spatiotemporal variations in aphidparasitoid relative abundance
... of hosts and their relative abundance to be a major factor explaining the relative abundances of parasitoids. Presumably, a high variance in the availability and the quality of host resources would be favorable for parasitoids presenting a generalist strategy. Similarly, a prevalence of specialist b ...
... of hosts and their relative abundance to be a major factor explaining the relative abundances of parasitoids. Presumably, a high variance in the availability and the quality of host resources would be favorable for parasitoids presenting a generalist strategy. Similarly, a prevalence of specialist b ...
the Dark Side of Black Bass
... introductions typically have been made with limited or no consideration about the ecological consequences of such actions. Ironically, this symposium represented the 25th anniversary of the publication the first Black Bass Symposium proceedings, the same year at which John Magnuson’s presidential ad ...
... introductions typically have been made with limited or no consideration about the ecological consequences of such actions. Ironically, this symposium represented the 25th anniversary of the publication the first Black Bass Symposium proceedings, the same year at which John Magnuson’s presidential ad ...
Exotic Species, Naturalisation, and Biological Nativism
... because, by this criterion, humans would be native only to Africa. But all species move around. Species evolve in one locale, then migrate or expand their range to other places, and thrive for thousands of years perfectly at home in these new regions. Few species in a region would be natives if we a ...
... because, by this criterion, humans would be native only to Africa. But all species move around. Species evolve in one locale, then migrate or expand their range to other places, and thrive for thousands of years perfectly at home in these new regions. Few species in a region would be natives if we a ...
Keystone Species
... • Predator and prey population sizes can move up and down together in a fairly tight linkage, but predator-prey interaction generally is only one of several factors that control the population level of either predators or prey. ...
... • Predator and prey population sizes can move up and down together in a fairly tight linkage, but predator-prey interaction generally is only one of several factors that control the population level of either predators or prey. ...
Models, Mechanisms and Pathways of Succession
... difficult(McIntosh, 1974, 1980). A number of factorsmay have contributed to this. First, although there is much information available on patterns of succession, there is currentlyno general theory to organize this information and to relate pattern and mechanisms. Second, the basic conceptsrequiredto ...
... difficult(McIntosh, 1974, 1980). A number of factorsmay have contributed to this. First, although there is much information available on patterns of succession, there is currentlyno general theory to organize this information and to relate pattern and mechanisms. Second, the basic conceptsrequiredto ...
Towra Point Nature Reserve Ramsar site: Ecological character
... (including Towra Point) has not decreased since 1984 (AWSG 2008), however the estimated international population of this species has increased (Li Zuo Wei and Mundkur 2007; WSG 2007). Therefore Towra Point now supports less than 1% of the estimated population and does not meet criterion 6. There is ...
... (including Towra Point) has not decreased since 1984 (AWSG 2008), however the estimated international population of this species has increased (Li Zuo Wei and Mundkur 2007; WSG 2007). Therefore Towra Point now supports less than 1% of the estimated population and does not meet criterion 6. There is ...
frogwatch teachers` guide to frogs as indicators of
... rogs and toads—like the canaries in the coal mines of yesteryear—respond quickly to changes in their environment. This is important because we rely on the wetland ecosystems where they live for our clean water. Wetlands act as natural filters to keep Canada's water pure. Declines in frog populations ...
... rogs and toads—like the canaries in the coal mines of yesteryear—respond quickly to changes in their environment. This is important because we rely on the wetland ecosystems where they live for our clean water. Wetlands act as natural filters to keep Canada's water pure. Declines in frog populations ...
Reprint - Queen`s University Department of Mathematics and Statistics.
... has such an astonishing level of evolutionary diversification taken place throughout Earth’s history (Hutchinson 1959)? Why, for example, does a single hectare of tropical rain forest sometimes contain more than 300 species of trees instead of just a few? Unfortunately (or perhaps fortunately, if yo ...
... has such an astonishing level of evolutionary diversification taken place throughout Earth’s history (Hutchinson 1959)? Why, for example, does a single hectare of tropical rain forest sometimes contain more than 300 species of trees instead of just a few? Unfortunately (or perhaps fortunately, if yo ...
article - Aquatic Invasions
... The establishment of nonnative species and subsequent replacement of native species is among the greatest threats to freshwater biodiversity worldwide. However, little is known of the effects that invasive species have on individual species and specific mechanisms by which species displacement occur ...
... The establishment of nonnative species and subsequent replacement of native species is among the greatest threats to freshwater biodiversity worldwide. However, little is known of the effects that invasive species have on individual species and specific mechanisms by which species displacement occur ...
Bateman et al 2013 dispersal scenarios in print
... (Roche et al.,; Farmer & Parent, 1997). Mobile marine species (Robinson et al., 2011), larger mammals and migratory birds (Sutherland et al., 2000) are more likely to keep pace with climate change via dispersal compared with plants, reptiles and amphibians. Despite this expectation that large rangin ...
... (Roche et al.,; Farmer & Parent, 1997). Mobile marine species (Robinson et al., 2011), larger mammals and migratory birds (Sutherland et al., 2000) are more likely to keep pace with climate change via dispersal compared with plants, reptiles and amphibians. Despite this expectation that large rangin ...
Wildlife - Manitoba Forestry Association
... compete with other individuals for food and other resources. They also prey upon others, parasitize them, provide them food, and change their physical and chemical environment. Interactions between species can take various forms. Neutral interactions will have no effect on individuals or populations ...
... compete with other individuals for food and other resources. They also prey upon others, parasitize them, provide them food, and change their physical and chemical environment. Interactions between species can take various forms. Neutral interactions will have no effect on individuals or populations ...
Microbial interactions: from networks to models
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
chapt13_lecture
... can grow heights of over 100 feet • It is found mainly in the Pacific on the coasts of North and South America • This species forms thick forests that serve as a MAJOR ocean ecosystem in the areas where it is found ...
... can grow heights of over 100 feet • It is found mainly in the Pacific on the coasts of North and South America • This species forms thick forests that serve as a MAJOR ocean ecosystem in the areas where it is found ...
BI 352001 Behavioral Ecology
... strong odor that is foul smelling. They can spray other animals and people up to 15 feet from them. This powerful spray is used to help them defend themselves against predators. The spotted skunk is typically found around the woodland regions of North America; however, they are also found in the Con ...
... strong odor that is foul smelling. They can spray other animals and people up to 15 feet from them. This powerful spray is used to help them defend themselves against predators. The spotted skunk is typically found around the woodland regions of North America; however, they are also found in the Con ...
Hybridization due to changing species distributions: adding
... in later generations after F1 hybrid formation, allowing introgression even if hybrids ...
... in later generations after F1 hybrid formation, allowing introgression even if hybrids ...
Biodiversity and Ecosystem Functioning: Basic
... ‘Does biodiversity matter for the functioning of ecosystems?’ or ‘Does it make any difference to the processes within an ecosystem if there are many or only a few species?’ These are the central questions that arise when one is looking at the many ecosystems on earth differing very much in their bio ...
... ‘Does biodiversity matter for the functioning of ecosystems?’ or ‘Does it make any difference to the processes within an ecosystem if there are many or only a few species?’ These are the central questions that arise when one is looking at the many ecosystems on earth differing very much in their bio ...
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.