![Direct and indirect effects of nutrients on](http://s1.studyres.com/store/data/017830351_1-b666105f1d5d536e246b59cb359e6269-300x300.png)
Direct and indirect effects of nutrients on
... the absence of invertebrate prey species at this tide height. Six replicate pairs ofquadrats were taken at each cliff site, four replicates at each island site. To avoid possible i confounding effects of freshwater on intertidal organisms, no quadrats were taken under areas that experience high run- ...
... the absence of invertebrate prey species at this tide height. Six replicate pairs ofquadrats were taken at each cliff site, four replicates at each island site. To avoid possible i confounding effects of freshwater on intertidal organisms, no quadrats were taken under areas that experience high run- ...
Dinger EC, Hendrickson DA, Winsborough BM, Marks JC (2006)
... abundant endemic pupfish, Cyprinodon bifasciatus. No effects of treatments on invertebrate densities were noted at 6 week, but significant effects were observed on specific taxonomic groups after 3 month. In absence of fishes, hydrobiidae snails and ceratopogonids increased 3- and 5-fold, respectively, an ...
... abundant endemic pupfish, Cyprinodon bifasciatus. No effects of treatments on invertebrate densities were noted at 6 week, but significant effects were observed on specific taxonomic groups after 3 month. In absence of fishes, hydrobiidae snails and ceratopogonids increased 3- and 5-fold, respectively, an ...
File
... the frog density in the small and large pond. We also wondered about abiotic factors such as air temperature ranges that influence frogs to be out of the water or in the water affecting frog density. If we were to perform this study again, we would do some things differently. We would count frogs we ...
... the frog density in the small and large pond. We also wondered about abiotic factors such as air temperature ranges that influence frogs to be out of the water or in the water affecting frog density. If we were to perform this study again, we would do some things differently. We would count frogs we ...
Madagascar and other Islands - Endangered Species Handbook
... prevalence of their bones. There were two genera, and from six to 12 species of these birds (Tyson 2000). It is likely that the flightless birds fell prey to the primitive weapons of the Malagasy and were crowded out of their habitats by livestock (Tyson 2000). The last to die out was the Great Elep ...
... prevalence of their bones. There were two genera, and from six to 12 species of these birds (Tyson 2000). It is likely that the flightless birds fell prey to the primitive weapons of the Malagasy and were crowded out of their habitats by livestock (Tyson 2000). The last to die out was the Great Elep ...
How life-history traits affect ecosystem properties: effects of dispersal
... whether environmental variability is spatial and/or temporal (Loreau et al. 2003a, Mouquet and Loreau 2003, see the link between ‘local adaptation’/’insurance’ and ‘characteristics of limiting factors’ in Fig. 1). By contrast, any dispersal flux of living organism eventually fuels the detritus pool ...
... whether environmental variability is spatial and/or temporal (Loreau et al. 2003a, Mouquet and Loreau 2003, see the link between ‘local adaptation’/’insurance’ and ‘characteristics of limiting factors’ in Fig. 1). By contrast, any dispersal flux of living organism eventually fuels the detritus pool ...
Invasive Alien Plants and their Management in Africa
... economic development and human and animal health on this planet. As a result of increased global trade and travel, invasive species have established themselves on every continent – not even Antarctica has escaped the onslaught of invasive plants and animals! Diverse habitats such as snow-capped moun ...
... economic development and human and animal health on this planet. As a result of increased global trade and travel, invasive species have established themselves on every continent – not even Antarctica has escaped the onslaught of invasive plants and animals! Diverse habitats such as snow-capped moun ...
White sturgeon, Shovelnose sturgeon, American Paddlefish U.S.
... platorhyncus), and American paddlefish (Polyodon spathula) represent three of twenty seven species of two families in the order Acipensiformes that live only in the Northern Hemisphere. These are among the oldest living species of fishes living today and share common biological characteristics that ...
... platorhyncus), and American paddlefish (Polyodon spathula) represent three of twenty seven species of two families in the order Acipensiformes that live only in the Northern Hemisphere. These are among the oldest living species of fishes living today and share common biological characteristics that ...
Shorebird Summary Report - March 2012
... Peak counts of Bar-tailed Godwit, Red Knot, Pacific Golden Plover and Red-necked Stint were all higher than the previous year, however, were not consistent within the season, resulting in low averages. Numbers of Bar-tailed Godwit at Penrhyn Estuary slightly increased since the previous peak season, ...
... Peak counts of Bar-tailed Godwit, Red Knot, Pacific Golden Plover and Red-necked Stint were all higher than the previous year, however, were not consistent within the season, resulting in low averages. Numbers of Bar-tailed Godwit at Penrhyn Estuary slightly increased since the previous peak season, ...
vernal pool fairy shrimp - Solano County Water Agency
... agent (Brusca, in. litt., 1992, King, in. litt., 1992, Simovich, in. litt., 1992). Cysts may also be dispersed and transported in mud on cattle and other livestock that graze in vernal pool areas. The ability of the species to disperse is important for the long-term survival and recovery of the spec ...
... agent (Brusca, in. litt., 1992, King, in. litt., 1992, Simovich, in. litt., 1992). Cysts may also be dispersed and transported in mud on cattle and other livestock that graze in vernal pool areas. The ability of the species to disperse is important for the long-term survival and recovery of the spec ...
Interspecific and integroup interactions of mantled
... This Thesis is brought to you for free and open access by the Graduate College at Digital Repository @ Iowa State University. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Digital Repository @ Iowa State University. For more information, ...
... This Thesis is brought to you for free and open access by the Graduate College at Digital Repository @ Iowa State University. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Digital Repository @ Iowa State University. For more information, ...
stability of terrestrial ecosystems as to pest organisms
... Georgia (the Transcaucasus, Former Soviet Union). The resistance of it to phytopathogens was evaluated and genetic analysis of its stock were conducted by P.M. Zhukovsky (1964, p. 107). It has been found out that Zanduri is resistant to all the phytopathogen species, and this resistance can be chara ...
... Georgia (the Transcaucasus, Former Soviet Union). The resistance of it to phytopathogens was evaluated and genetic analysis of its stock were conducted by P.M. Zhukovsky (1964, p. 107). It has been found out that Zanduri is resistant to all the phytopathogen species, and this resistance can be chara ...
Moths and Mountains: Diversity, Altitude and Latitude
... Figure 6.6 NMDS Ordination plot of (a) Mengla (tropical) moth assemblages across four elevational bands (800m, 1000m, 1200m and 1400m a.s.l.) (stress + 0.07), (b) Ailao Shan (sub-tropical) moth assemblages across four elevational bands (2000m, 2200m, 2400m and 2600m a.s.l.) (stress = 0.06) and (c) L ...
... Figure 6.6 NMDS Ordination plot of (a) Mengla (tropical) moth assemblages across four elevational bands (800m, 1000m, 1200m and 1400m a.s.l.) (stress + 0.07), (b) Ailao Shan (sub-tropical) moth assemblages across four elevational bands (2000m, 2200m, 2400m and 2600m a.s.l.) (stress = 0.06) and (c) L ...
The Network Structure of Food Webs
... could mean that A eats B, B eats A, or both eat each other) in an S by S matrix, excluding intraspecific interactions, and thus is sometimes referred to as interactive connectance. However, if cycles do occur in food webs, C = L/[S(S − 1)/2] exaggerates connectance, since cycling links are counted in ...
... could mean that A eats B, B eats A, or both eat each other) in an S by S matrix, excluding intraspecific interactions, and thus is sometimes referred to as interactive connectance. However, if cycles do occur in food webs, C = L/[S(S − 1)/2] exaggerates connectance, since cycling links are counted in ...
The Mutualistic Niche
... The niche concept has been variously defined during its long history in ecology: the specific habitats a species occupies (Grinnell 1917), an abstract N-dimensional hypervolume circumscribing the environmental conditions necessary for a species to practice its way of life (Hutchinson 1957), or the e ...
... The niche concept has been variously defined during its long history in ecology: the specific habitats a species occupies (Grinnell 1917), an abstract N-dimensional hypervolume circumscribing the environmental conditions necessary for a species to practice its way of life (Hutchinson 1957), or the e ...
Read More - SANParks
... herbivores and associated increased grazing pressure, often exacerbated by long dry periods preceding and following such fires. It is, therefore, not the fire impact per se causing changes in the vegetation, but the interaction of fire and concentrated herbivory. There have been a number of specific ...
... herbivores and associated increased grazing pressure, often exacerbated by long dry periods preceding and following such fires. It is, therefore, not the fire impact per se causing changes in the vegetation, but the interaction of fire and concentrated herbivory. There have been a number of specific ...
ABSTRACT ROCKHILL, AIMEE PAULINE. The Ecology of Bobcats
... Aimee Rockhill (formerly Salstead) grew up in Ticonderoga, a small town in the Adirondack Park of upstate New York. Family vacations were usually spent camping at the Schroon Lake camp ground where there was ample opportunity to play in the river, hike on trails, or explore in the woods with her two ...
... Aimee Rockhill (formerly Salstead) grew up in Ticonderoga, a small town in the Adirondack Park of upstate New York. Family vacations were usually spent camping at the Schroon Lake camp ground where there was ample opportunity to play in the river, hike on trails, or explore in the woods with her two ...
Why Beech - SUNY-ESF
... with sugar maple (Acer saccharum Marsh.) comprise the dominants in the climax “northern hardwood forest”. Beech is widespread in all nine forest regions that comprise Lucy Braun’s classic 1950 treatise of the deciduous forests of eastern North America. It is a characteristic species of four of those ...
... with sugar maple (Acer saccharum Marsh.) comprise the dominants in the climax “northern hardwood forest”. Beech is widespread in all nine forest regions that comprise Lucy Braun’s classic 1950 treatise of the deciduous forests of eastern North America. It is a characteristic species of four of those ...
Ensis directus
... capable of catching and eating these clams. In particular common scoters feed exclusively on American razor clams near the off-shore windmill farm at Horns Rev in the Danish part of the North Sea (Skov et al., 2008), but also eiders will feed on razor clams (Leopold et al., 2001). Moonsnails that us ...
... capable of catching and eating these clams. In particular common scoters feed exclusively on American razor clams near the off-shore windmill farm at Horns Rev in the Danish part of the North Sea (Skov et al., 2008), but also eiders will feed on razor clams (Leopold et al., 2001). Moonsnails that us ...
By Krystle White A Thesis
... I would like to extend my gratitude to those individuals whose assistance helped to make this thesis possible. First of all, I would like to thank my supervisor, Dr. Nicola Koper, for her guidance on the writing process and statistical analyses that greatly improved all aspects of this thesis. I wou ...
... I would like to extend my gratitude to those individuals whose assistance helped to make this thesis possible. First of all, I would like to thank my supervisor, Dr. Nicola Koper, for her guidance on the writing process and statistical analyses that greatly improved all aspects of this thesis. I wou ...
The Cascading Effects of Invasive Grasses in North American Deserts
... I would like to thank my advisor, Dr. Brock McMillan, for his grammar lessons, advice, and positive attitude, as well as for reading and editing a heap of drafts leading up to this document. I’d also like to thank Dr. Sam St. Clair for his advice and assistance both in and out of the field. Dr. Rand ...
... I would like to thank my advisor, Dr. Brock McMillan, for his grammar lessons, advice, and positive attitude, as well as for reading and editing a heap of drafts leading up to this document. I’d also like to thank Dr. Sam St. Clair for his advice and assistance both in and out of the field. Dr. Rand ...
Eco07
... Coevolution is a type of community evolution. Coevolution is the joint evolution of two or more noninterbreeding species that have a close ecological relationship, such as plants and herbivores, large organisms and their microorganism symbionts, or parasites and their hosts. Through reciprocal s ...
... Coevolution is a type of community evolution. Coevolution is the joint evolution of two or more noninterbreeding species that have a close ecological relationship, such as plants and herbivores, large organisms and their microorganism symbionts, or parasites and their hosts. Through reciprocal s ...
Full Program
... I look forward to meeting old friends and meeting many new ones over the course of this meeting. I can’t wait to hear about the many exciting things that our community has accomplished and what is coming soon. Have a wonderful time in Victoria! Jeremy T Kerr President, CSEE p.s. Your CSEE council ha ...
... I look forward to meeting old friends and meeting many new ones over the course of this meeting. I can’t wait to hear about the many exciting things that our community has accomplished and what is coming soon. Have a wonderful time in Victoria! Jeremy T Kerr President, CSEE p.s. Your CSEE council ha ...
Relative Suitability of Virginia Pine and Loblolly Pine as Host
... and loblolly pine: n ⫽ 15 intermixed, uninfested trees of each species (site 1). Methods followed Ruel et al. (1998) and Lombardero et al. (2000). On 29 April 1999, at 0900 hours, two disks (125 mm2) of bark and phloem were removed from each tree and the resin that ßowed from exposed xylem was colle ...
... and loblolly pine: n ⫽ 15 intermixed, uninfested trees of each species (site 1). Methods followed Ruel et al. (1998) and Lombardero et al. (2000). On 29 April 1999, at 0900 hours, two disks (125 mm2) of bark and phloem were removed from each tree and the resin that ßowed from exposed xylem was colle ...
Standard PDF - Wiley Online Library
... probability of carcass removal by vertebrates was higher for large than for small rodent carcasses. These authors suggested that this is because larger carcasses are more conspicuous (i.e. easier to find) and comparatively less exploited by decomposers due to a lower surface:volume ratio. These patt ...
... probability of carcass removal by vertebrates was higher for large than for small rodent carcasses. These authors suggested that this is because larger carcasses are more conspicuous (i.e. easier to find) and comparatively less exploited by decomposers due to a lower surface:volume ratio. These patt ...
10.0 eelgrass - Humboldt Bay Harbor District
... Bay varies through time, nor even how closely the stands in Arcata Bay compare with those in South Bay. Eelgrass has long been recognized as an important habitat for some fish and wildlife species (… see Phillips 1984 for a general discussion of eelgrass meadow ecology in the Pacific Northwest). Cur ...
... Bay varies through time, nor even how closely the stands in Arcata Bay compare with those in South Bay. Eelgrass has long been recognized as an important habitat for some fish and wildlife species (… see Phillips 1984 for a general discussion of eelgrass meadow ecology in the Pacific Northwest). Cur ...
Bifrenaria
![](https://commons.wikimedia.org/wiki/Special:FilePath/Bifrenaria_tyrianthina_Orchi_01.jpg?width=300)
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.