Slide - Woodland Park Zoo
... up to 20 to 23 feet (6 to 7 meters) in length, though males over 16.5 feet (5 meters) are rare. Large males can weigh up to 3,300 pounds (1,485 kg). Crocodiles can be distinguished from alligators by the shape of the snout and the placement of the teeth. Crocodiles generally have snouts that are mor ...
... up to 20 to 23 feet (6 to 7 meters) in length, though males over 16.5 feet (5 meters) are rare. Large males can weigh up to 3,300 pounds (1,485 kg). Crocodiles can be distinguished from alligators by the shape of the snout and the placement of the teeth. Crocodiles generally have snouts that are mor ...
pdf - Gunnar Brehm
... measures of local diversity. At single sites, up to 292 species were observed, and extrapolation estimates range from 244 to 445 species. Values for Fisher’s alpha are among the highest ever measured for this moth family, and range from 69 to 131 per site. In contrast to theoretical assumptions and ...
... measures of local diversity. At single sites, up to 292 species were observed, and extrapolation estimates range from 244 to 445 species. Values for Fisher’s alpha are among the highest ever measured for this moth family, and range from 69 to 131 per site. In contrast to theoretical assumptions and ...
Light reduction predicts widespread patterns of dominance between
... thinning to the target densities. Consequently one might argue that, had the plants been grown throughout the season at the lower densities to which they were eventually thinned, they would have had a different phenotype (e.g., a different stem architecture and overall size) and therefore different ...
... thinning to the target densities. Consequently one might argue that, had the plants been grown throughout the season at the lower densities to which they were eventually thinned, they would have had a different phenotype (e.g., a different stem architecture and overall size) and therefore different ...
Light reduction predicts widespread patterns of dominance between
... thinning to the target densities. Consequently one might argue that, had the plants been grown throughout the season at the lower densities to which they were eventually thinned, they would have had a different phenotype (e.g., a different stem architecture and overall size) and therefore different ...
... thinning to the target densities. Consequently one might argue that, had the plants been grown throughout the season at the lower densities to which they were eventually thinned, they would have had a different phenotype (e.g., a different stem architecture and overall size) and therefore different ...
Alternative stable states and regional community structure
... to the species themselves. One well-known example comes from mechanistic resource competition models (Tilman, 1988; Grover, 1997). The two consumer species require a minimum amount of each of two essential resources. The line representing the minimum amount of each resource that a species needs to m ...
... to the species themselves. One well-known example comes from mechanistic resource competition models (Tilman, 1988; Grover, 1997). The two consumer species require a minimum amount of each of two essential resources. The line representing the minimum amount of each resource that a species needs to m ...
Vegetational changes over an eleven-year period in
... Hyde 2006; USDI 2003) (Figures 1-4). The current study reports a 2016 re-analysis of those same plots. MATERIALS AND METHODS The objective of this project was to determine vegetational changes to a blackland prairie over an eleven year period (USDI 2003) by re-sampling three brush FMH vegetation mon ...
... Hyde 2006; USDI 2003) (Figures 1-4). The current study reports a 2016 re-analysis of those same plots. MATERIALS AND METHODS The objective of this project was to determine vegetational changes to a blackland prairie over an eleven year period (USDI 2003) by re-sampling three brush FMH vegetation mon ...
Relationships between organisms
... C. Grasshoppers and caterpillars eat oak leaves. D. Producers and scavengers eat deer carcasses. ...
... C. Grasshoppers and caterpillars eat oak leaves. D. Producers and scavengers eat deer carcasses. ...
1 Limnology 2009 Section 15 Phytoplankton and Primary Production
... Waldo Lake. The low nutrient concentrations in the water column support little phytoplankton, but rather dense mats of benthic algae are present. In this circumstance all the primary producer action is on the bottom. ...
... Waldo Lake. The low nutrient concentrations in the water column support little phytoplankton, but rather dense mats of benthic algae are present. In this circumstance all the primary producer action is on the bottom. ...
Untitled
... In fact, although disturbance is undoubtedly key to many non-native invasions, its role is overstated, and 118 non-native plant species invade undisturbed forests in the United States (data extracted from Martin et al. 2009). Although a few of these are wellknown (e.g., Norway maple [Acer platanoide ...
... In fact, although disturbance is undoubtedly key to many non-native invasions, its role is overstated, and 118 non-native plant species invade undisturbed forests in the United States (data extracted from Martin et al. 2009). Although a few of these are wellknown (e.g., Norway maple [Acer platanoide ...
Increasing deterministic control of primary succession on Mount St
... the most common species in the study, together with Carex mertensii, Penstemon and Juncus parryi. CTC (Agrostis-Lupinus-Racomitrium) was similar to CT-B, but the proportions of the dominants differed and there was little Penstemon. CT-D (PenstemonAgrostis-Juncus) was sparsely vegetated, but diverse, ...
... the most common species in the study, together with Carex mertensii, Penstemon and Juncus parryi. CTC (Agrostis-Lupinus-Racomitrium) was similar to CT-B, but the proportions of the dominants differed and there was little Penstemon. CT-D (PenstemonAgrostis-Juncus) was sparsely vegetated, but diverse, ...
Species Dynamics During Early Secondary Forest Succession
... many shade-tolerant species (Holmgren & Poorter, in press). Unlike shade-tolerant taxa, few pioneers have narrowly localized or disjunctive areas, and generally occur at much higher densities (Richards et al. 1996, Holmgren et al. 2004). Hence, we expect that species richness and evenness of recruit ...
... many shade-tolerant species (Holmgren & Poorter, in press). Unlike shade-tolerant taxa, few pioneers have narrowly localized or disjunctive areas, and generally occur at much higher densities (Richards et al. 1996, Holmgren et al. 2004). Hence, we expect that species richness and evenness of recruit ...
http://www.ca.blm.gov/pdfs/palmsprings_pdfs/pdfs_coachella/Glossary.pdf
... established population range to maintain a thriving natural ecological balance, based on available forage, water, and other resource needs or conflicts (relating to management of wild horses and burros). Aquifer: A water bearing unit of permeable rock or sediment that is capable of yielding water to ...
... established population range to maintain a thriving natural ecological balance, based on available forage, water, and other resource needs or conflicts (relating to management of wild horses and burros). Aquifer: A water bearing unit of permeable rock or sediment that is capable of yielding water to ...
Biosphere Revision Booklet
... National and Local Scale Management Many countries use a national strategy of having certain areas protected from development to use for conservation. In the UK there are 12 national parks, for example, the Lake District. On a local scale planning permission, road building and industry is strictly c ...
... National and Local Scale Management Many countries use a national strategy of having certain areas protected from development to use for conservation. In the UK there are 12 national parks, for example, the Lake District. On a local scale planning permission, road building and industry is strictly c ...
A research project from The National Center for Agricultural Law... the University of Arkansas •
... perspective of law and policy. By contrasting efforts in Great Britain and the United States to deal with biodiversity loss, lessons to be learned from these countries’ quite different approaches will be identified, beginning some premises that do not require extensive elaboration. First, the widesp ...
... perspective of law and policy. By contrasting efforts in Great Britain and the United States to deal with biodiversity loss, lessons to be learned from these countries’ quite different approaches will be identified, beginning some premises that do not require extensive elaboration. First, the widesp ...
CAWCRA Biodiversity Action Plan
... Several sites heavily infested with knotweed were noted in May 2010. NTC included the area in their knotweed eradication program. Knotweed was subsequently poisoned. We were advised that in these sites, there should be no activity for a period of 5 years to ensure no regrowth or spread of this speci ...
... Several sites heavily infested with knotweed were noted in May 2010. NTC included the area in their knotweed eradication program. Knotweed was subsequently poisoned. We were advised that in these sites, there should be no activity for a period of 5 years to ensure no regrowth or spread of this speci ...
The Role of Benthic Invertebrate Species in Freshwater Ecosystems
... questioned how much overlap in resource use can persist over time among competing species. Recently, this question has been rephrased to ask if, and under what conditions, the functional roles of each species are necessary for ecosystem processes to persist. This “redundancy hypothesis” predicts th ...
... questioned how much overlap in resource use can persist over time among competing species. Recently, this question has been rephrased to ask if, and under what conditions, the functional roles of each species are necessary for ecosystem processes to persist. This “redundancy hypothesis” predicts th ...
![3. Ecosystems Booklet [A2]](http://s1.studyres.com/store/data/000907128_1-17cd24bf3612766ddeeb25d04dd2543c-300x300.png)
3. Ecosystems Booklet [A2]
... Zonation refers to the division of an ecosystem into distinct zones that experience similar abiotic conditions. In a more global sense, differences in latitude and altitude create distinctive zones of vegetation type, or biomes. Zonation is particularly clear on a rocky seashore, where assemblages o ...
... Zonation refers to the division of an ecosystem into distinct zones that experience similar abiotic conditions. In a more global sense, differences in latitude and altitude create distinctive zones of vegetation type, or biomes. Zonation is particularly clear on a rocky seashore, where assemblages o ...
Lamine River Basin Biotic Communities
... benthic fish were collected by seining unless otherwise indicated on summary sheets. Large fish were collected by electrofishing, seining, or a combination of the two methods. Data on the summary sheets (Appendix 4) is not highly quantitative in nature; it is meant to provide a basic idea of the com ...
... benthic fish were collected by seining unless otherwise indicated on summary sheets. Large fish were collected by electrofishing, seining, or a combination of the two methods. Data on the summary sheets (Appendix 4) is not highly quantitative in nature; it is meant to provide a basic idea of the com ...
Effects of altered resource consumption rates by one consumer
... consumers lack any exclusively utilized resources. In a similar model with three resources, in which each consumer uses one shared and one exclusive resource, increases in both consumption rate parameters of consumer i often produce an increase in consumer species j. While the models analysed here i ...
... consumers lack any exclusively utilized resources. In a similar model with three resources, in which each consumer uses one shared and one exclusive resource, increases in both consumption rate parameters of consumer i often produce an increase in consumer species j. While the models analysed here i ...
Ch55Test_File - Milan Area Schools
... 4. d. Because organism 9 eats from both the primary producer level (1) and the herbivore level (2), it would be an omnivore. 5. c. Four trophic levels are depicted. The levels are primary producer (1), herbivore (2, 3, 4), primary carnivore (5, 6), and secondary carnivore (7, 8). The omnivore (9) o ...
... 4. d. Because organism 9 eats from both the primary producer level (1) and the herbivore level (2), it would be an omnivore. 5. c. Four trophic levels are depicted. The levels are primary producer (1), herbivore (2, 3, 4), primary carnivore (5, 6), and secondary carnivore (7, 8). The omnivore (9) o ...
The feeding behaviour of an abyssal sea anemone
... response, 158 feeding events occurred each day. In none of these feeding events was it possible to discern the food particle which suggests they were less than 4 mm in diameter. The photographie resolution was not adequate to detect ciliary feeding and because of the poor state of preservation of ca ...
... response, 158 feeding events occurred each day. In none of these feeding events was it possible to discern the food particle which suggests they were less than 4 mm in diameter. The photographie resolution was not adequate to detect ciliary feeding and because of the poor state of preservation of ca ...
the use of rodenticides for conservation efforts
... some cases (Tasheva 1995, Timm 1994). It is important to note that even when nontarget species (e.g., ants, hermit crabs, most reptiles and amphibians) are not effected by the anticoagulant baits (Booth et al. 2003, Hoare and Hare 2006, Johnston et al. 2005, Spurr and Drew 1999), they may affect th ...
... some cases (Tasheva 1995, Timm 1994). It is important to note that even when nontarget species (e.g., ants, hermit crabs, most reptiles and amphibians) are not effected by the anticoagulant baits (Booth et al. 2003, Hoare and Hare 2006, Johnston et al. 2005, Spurr and Drew 1999), they may affect th ...
The global diversity of protozoa and other small species
... genus has not been revised in the last 60years. It currently contains more than 100 species, and many are very similar to one another. How can it be justified to squeeze more “new” ciliates into such a genus before rationalising the existing complement of nominal species? And if we look at the 730 “ ...
... genus has not been revised in the last 60years. It currently contains more than 100 species, and many are very similar to one another. How can it be justified to squeeze more “new” ciliates into such a genus before rationalising the existing complement of nominal species? And if we look at the 730 “ ...
Ecological Consequences of Doubling the Atmospheric CO2
... factors as 2xCO2, elevated temperature, modified habitats, and changes to food sources. While plants were included as short-term primary producers in the context of ecosystem services, they are included again within this domain as organisms in their own right. The organismal response includes all th ...
... factors as 2xCO2, elevated temperature, modified habitats, and changes to food sources. While plants were included as short-term primary producers in the context of ecosystem services, they are included again within this domain as organisms in their own right. The organismal response includes all th ...
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.