How do seagrasses grow and spread?
... through a combination of both processes, as flowering shoots may detach and disperse, subsequently releasing the seeds. The mature seeds of Cymodocea nodosa are produced at the base of the shoots, and are often positioned at, or just below, the sediment surface. These seeds are, therefore, not likel ...
... through a combination of both processes, as flowering shoots may detach and disperse, subsequently releasing the seeds. The mature seeds of Cymodocea nodosa are produced at the base of the shoots, and are often positioned at, or just below, the sediment surface. These seeds are, therefore, not likel ...
Wildlife Management Practices (WMPs)
... Conservation easements are critically important in protecting property that contains or harbors rare vegetation types, habitat features, and endangered species. Examples include longleaf pine savanna, native grasslands, caves, and wetlands that provide habitat for species of conservation concern, su ...
... Conservation easements are critically important in protecting property that contains or harbors rare vegetation types, habitat features, and endangered species. Examples include longleaf pine savanna, native grasslands, caves, and wetlands that provide habitat for species of conservation concern, su ...
Bill Shape and Sexual Shape dimorphiSm Between two Archilochus
... and its consequences for the ecology and evolution of organisms are often profound. One pattern frequently observed is sexual size dimorphism (SSD), and a number of mechanisms have been proposed to explain its variable distribution among taxa (Abouheif and Fairbairn 1997, Colwell 2000). Darwin (1871 ...
... and its consequences for the ecology and evolution of organisms are often profound. One pattern frequently observed is sexual size dimorphism (SSD), and a number of mechanisms have been proposed to explain its variable distribution among taxa (Abouheif and Fairbairn 1997, Colwell 2000). Darwin (1871 ...
Seed Germination and Seedling Survival of two endemic (Eryngium
... early summer temperatures as of 5/7/2010 (high 30, low 21 degrees C), and to later summer temperatures as of 7/5/2010 (high: 35, low 21 degrees C). We terminated the trial after germination had ceased for several weeks. We used 40 seeds per species for the 3 rare species, and 60 seeds per species fo ...
... early summer temperatures as of 5/7/2010 (high 30, low 21 degrees C), and to later summer temperatures as of 7/5/2010 (high: 35, low 21 degrees C). We terminated the trial after germination had ceased for several weeks. We used 40 seeds per species for the 3 rare species, and 60 seeds per species fo ...
Macroecology: more than the division of food and
... use of what they termed a ‘macroecological approach’ to address such questions. Their first papers (Brown and Maurer, 1987; 1989; Maurer and Brown, 1988) focused on the pattern identified by Hutchinson and MacArthur (1959), the unimodal distribution of the number of species of different sizes at the ...
... use of what they termed a ‘macroecological approach’ to address such questions. Their first papers (Brown and Maurer, 1987; 1989; Maurer and Brown, 1988) focused on the pattern identified by Hutchinson and MacArthur (1959), the unimodal distribution of the number of species of different sizes at the ...
Earthworm Dissection
... A. Earthworms can produce between 3 and 80 cocoons per year depending on the species. The deeper-dwelling species don't have to produce as many cocoons because they are protected much better from predation than surface dwelling species which tend to produce many more cocoons. The number of fertilize ...
... A. Earthworms can produce between 3 and 80 cocoons per year depending on the species. The deeper-dwelling species don't have to produce as many cocoons because they are protected much better from predation than surface dwelling species which tend to produce many more cocoons. The number of fertilize ...
From tropics to tundra: Global convergence in plant functioning P B. R *
... plant functioning, despite the enormous diversity of plant species and biomes. For 280 plant species from two global data sets, we found that potential carbon gain (photosynthesis) and carbon loss (respiration) increase in similar proportion with decreasing leaf life-span, increasing leaf nitrogen c ...
... plant functioning, despite the enormous diversity of plant species and biomes. For 280 plant species from two global data sets, we found that potential carbon gain (photosynthesis) and carbon loss (respiration) increase in similar proportion with decreasing leaf life-span, increasing leaf nitrogen c ...
From tropics to tundra: Global convergence in plant functioning
... plant functioning, despite the enormous diversity of plant species and biomes. For 280 plant species from two global data sets, we found that potential carbon gain (photosynthesis) and carbon loss (respiration) increase in similar proportion with decreasing leaf life-span, increasing leaf nitrogen c ...
... plant functioning, despite the enormous diversity of plant species and biomes. For 280 plant species from two global data sets, we found that potential carbon gain (photosynthesis) and carbon loss (respiration) increase in similar proportion with decreasing leaf life-span, increasing leaf nitrogen c ...
The interaction between predation and competition: a review and
... predators on competition between prey species. We will consider predators to include any organism that has a negative effect on the immediate per capita population growth rate of a prey species by consuming part or all of prey individuals (e.g. herbivores, parasites). The current range of views on t ...
... predators on competition between prey species. We will consider predators to include any organism that has a negative effect on the immediate per capita population growth rate of a prey species by consuming part or all of prey individuals (e.g. herbivores, parasites). The current range of views on t ...
The interaction between predation and competition: a review and
... predators on competition between prey species. We will consider predators to include any organism that has a negative effect on the immediate per capita population growth rate of a prey species by consuming part or all of prey individuals (e.g. herbivores, parasites). The current range of views on t ...
... predators on competition between prey species. We will consider predators to include any organism that has a negative effect on the immediate per capita population growth rate of a prey species by consuming part or all of prey individuals (e.g. herbivores, parasites). The current range of views on t ...
Ch 54--Community Ecology
... – If there are one or more significant difference in their niches EXPERIMENT Ecologist Joseph Connell studied two barnacle speciesBalanus balanoides and Chthamalus stellatus that have a stratified distribution on rocks along the coast of Scotland. ...
... – If there are one or more significant difference in their niches EXPERIMENT Ecologist Joseph Connell studied two barnacle speciesBalanus balanoides and Chthamalus stellatus that have a stratified distribution on rocks along the coast of Scotland. ...
Biotic and abiotic components - Pearson Schools and FE Colleges
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
Environmental Systems and Societies Chapter 2
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
Variability and shifts in marine ecosystems
... and attributing effects of climate change (whether in distribution, abundance or phenology) (mention Perkinsus – oyster parasite, as a good example which combines observation and modelling to determine causes) The geographic and biotic coverage of this presentation is itself limited ...
... and attributing effects of climate change (whether in distribution, abundance or phenology) (mention Perkinsus – oyster parasite, as a good example which combines observation and modelling to determine causes) The geographic and biotic coverage of this presentation is itself limited ...
Olden et al. 2011 rusties
... Abstract. Despite the widespread introduction of nonnative species and the heterogeneity of ecosystems in their sensitivity to ecological impacts, few studies have assessed ecosystem vulnerability to the entire invasion process, from arrival to establishment and impacts. Our study addresses this cha ...
... Abstract. Despite the widespread introduction of nonnative species and the heterogeneity of ecosystems in their sensitivity to ecological impacts, few studies have assessed ecosystem vulnerability to the entire invasion process, from arrival to establishment and impacts. Our study addresses this cha ...
aliens - Invasive Species Specialist Group
... Florida Everglades, which was delayed until the area became more prone to anthropogenic disturbance (Crooks and Soulé 1999) and/or hurricanes. Another reason why it may take time for invasiveness to show up is that it may require cumulative interactions with other alien species. Avian malaria (Plasm ...
... Florida Everglades, which was delayed until the area became more prone to anthropogenic disturbance (Crooks and Soulé 1999) and/or hurricanes. Another reason why it may take time for invasiveness to show up is that it may require cumulative interactions with other alien species. Avian malaria (Plasm ...
The ITS region as a target for characterization of fungal communities
... The data presented above leave little room for interpretation on one pressing issue: the largest obstacle to routine, en masse identification of fungal sequences to the species level is the striking paucity of well-identified, extensively annotated, and sequence coverage-wise complete reference sequ ...
... The data presented above leave little room for interpretation on one pressing issue: the largest obstacle to routine, en masse identification of fungal sequences to the species level is the striking paucity of well-identified, extensively annotated, and sequence coverage-wise complete reference sequ ...
Two-year temporal response of benthic macrofauna and sediments
... individuals were collected and identified. Polychaetes were the dominant group in terms of abundance (57 % of total) followed by mollusks (41%). Hypoxia (and occasionally anoxia) caused strong deleterious effects on the abundance and species richness of macrofaunal communities in the study site. The ...
... individuals were collected and identified. Polychaetes were the dominant group in terms of abundance (57 % of total) followed by mollusks (41%). Hypoxia (and occasionally anoxia) caused strong deleterious effects on the abundance and species richness of macrofaunal communities in the study site. The ...
Redalyc.A review of the conservation status of Australian mammals
... Reliable estimates of population size are available for only a few Australian mammal species (mostly large and commercially exploited kangaroo species, a few whale species, and a small set of highly localised threatened species). However, there is some information on trends in various measures of re ...
... Reliable estimates of population size are available for only a few Australian mammal species (mostly large and commercially exploited kangaroo species, a few whale species, and a small set of highly localised threatened species). However, there is some information on trends in various measures of re ...
PDF
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
how do different measures of functional diversity perform?
... analysis. (C) The amount of variance in ecosystem functioning explained by each candidate measure of FAD and FD was recorded. (D) The analysis was bootstrapped to test statistical significance of relationships between ecosystem functioning and FAD or FD. Candidate traits.—Eight traits collected from ...
... analysis. (C) The amount of variance in ecosystem functioning explained by each candidate measure of FAD and FD was recorded. (D) The analysis was bootstrapped to test statistical significance of relationships between ecosystem functioning and FAD or FD. Candidate traits.—Eight traits collected from ...
24. Hunter Estuary Wetlands
... with the addition of Threatened flora & fauna due to the presence of threatened birds and frogs at the site Kooragang ECD includes table on significant threats with likelihood and timing. Most threats are already occurring at the site with observable impact. The ECD’s claim in reference to Table 6-1 ...
... with the addition of Threatened flora & fauna due to the presence of threatened birds and frogs at the site Kooragang ECD includes table on significant threats with likelihood and timing. Most threats are already occurring at the site with observable impact. The ECD’s claim in reference to Table 6-1 ...
Correlating species and spectral diversities using hyperspectral
... a site at a field boundary near the northeast successional series referred ...
... a site at a field boundary near the northeast successional series referred ...
4 Impacts of significant invasive vertebrate pests
... The case studies present a series of research findings that identify and report the impacts of various invasive animals in Australia. Ideally, a number of species, impact types and locations should be used to report the impact of all pest species throughout Australia (ie to present an overview of im ...
... The case studies present a series of research findings that identify and report the impacts of various invasive animals in Australia. Ideally, a number of species, impact types and locations should be used to report the impact of all pest species throughout Australia (ie to present an overview of im ...
Chapter 235 - El Niño and Biodiversity
... Regeneration will therefore, to a large extent, depend on surviving trees and areas of unburned forest that tend to be located in low-lying topography such as forest flood plains (Slik, 2004). Multiple fire events reduce the area of remnant unburned forest because fires tend to become more probable ...
... Regeneration will therefore, to a large extent, depend on surviving trees and areas of unburned forest that tend to be located in low-lying topography such as forest flood plains (Slik, 2004). Multiple fire events reduce the area of remnant unburned forest because fires tend to become more probable ...
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.