The vegetation of Omusati and Oshana Regions, central- northern Namibia by
... southern Africa Project therefore share a common goal of re-classifying Namibian vegetation by building on the Preliminary Vegetation Map of Namibia of 1971 and the Homogenous Framing Areas Report of 1979. The vegetation of Omusati and Oshana regions which are situated in the Mopanne Savanna in cent ...
... southern Africa Project therefore share a common goal of re-classifying Namibian vegetation by building on the Preliminary Vegetation Map of Namibia of 1971 and the Homogenous Framing Areas Report of 1979. The vegetation of Omusati and Oshana regions which are situated in the Mopanne Savanna in cent ...
The vegetation of Omusati and Oshana Regions, central
... southern Africa Project therefore share a common goal of re-classifying Namibian vegetation by building on the Preliminary Vegetation Map of Namibia of 1971 and the Homogenous Framing Areas Report of 1979. The vegetation of Omusati and Oshana regions which are situated in the Mopanne Savanna in cent ...
... southern Africa Project therefore share a common goal of re-classifying Namibian vegetation by building on the Preliminary Vegetation Map of Namibia of 1971 and the Homogenous Framing Areas Report of 1979. The vegetation of Omusati and Oshana regions which are situated in the Mopanne Savanna in cent ...
introduced browsing mammals in new zealand natural forests
... relationships across locations between effects of browsers on vegetation community attributes and on soil invertebrate community attributes are discussed. Browsing mammals generally did not have strong effects on C mineralization but did significantly influence soil C and N storage on an areal basis ...
... relationships across locations between effects of browsers on vegetation community attributes and on soil invertebrate community attributes are discussed. Browsing mammals generally did not have strong effects on C mineralization but did significantly influence soil C and N storage on an areal basis ...
Productivity, dispersal and the coexistence of intraguild predators
... support multi-trophic invertebrate communities (Chase and Leibold, 2002; Chase, 2003; Chase and Ryberg, 2004). There is permanent spatial heterogeneity in habitat quality as would occur if there were differences in soil, nutrient availability or moisture content that would make some host plant patch ...
... support multi-trophic invertebrate communities (Chase and Leibold, 2002; Chase, 2003; Chase and Ryberg, 2004). There is permanent spatial heterogeneity in habitat quality as would occur if there were differences in soil, nutrient availability or moisture content that would make some host plant patch ...
Scale-dependent interactions and community
... patterned, and there was little evidence that these patterns were caused by environmental heterogeneity and the resulting physical adaptation of plants. Similar spatial patterns were observed in intertidal mussel beds and microbial mats on relatively homogeneous intertidal flats (de Brouwer et al. 2 ...
... patterned, and there was little evidence that these patterns were caused by environmental heterogeneity and the resulting physical adaptation of plants. Similar spatial patterns were observed in intertidal mussel beds and microbial mats on relatively homogeneous intertidal flats (de Brouwer et al. 2 ...
OIKOS Finland conference for Ecologists and Evolutionary Biologists
... target on restoration of at least 15% of degraded habitats by 2020 in a way that is scientifically valid. I will argue that from an ecological perspective, it is necessary to recognize that ecosystem degradation or improvement has a minimum of two components: the extent of area that has been degrade ...
... target on restoration of at least 15% of degraded habitats by 2020 in a way that is scientifically valid. I will argue that from an ecological perspective, it is necessary to recognize that ecosystem degradation or improvement has a minimum of two components: the extent of area that has been degrade ...
Succession in plankton communities
... from the known surface concentration and physical processes alone (Raven and Falkowski 1999). This suggests that the atmospheric CO2 concentration would be significantly higher in the absence of the biological pump. However, the present role of the biological pump does not offer guarantees for the f ...
... from the known surface concentration and physical processes alone (Raven and Falkowski 1999). This suggests that the atmospheric CO2 concentration would be significantly higher in the absence of the biological pump. However, the present role of the biological pump does not offer guarantees for the f ...
Habitat-dependent foraging in a classic predatorа/prey system: a
... on snowshoe-hare habitat preference to develop competing predictions on hare distribution and foraging. My tests of the predictions demonstrate that hares (as well as their predators) are not bound by our expectations. Hare habitat preference between forest and cutover habitats is weakly density dep ...
... on snowshoe-hare habitat preference to develop competing predictions on hare distribution and foraging. My tests of the predictions demonstrate that hares (as well as their predators) are not bound by our expectations. Hare habitat preference between forest and cutover habitats is weakly density dep ...
Spatial dynamics of mutualistic interactions
... with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effect can occur such that the per capita growth rate of the non-mobile mutualist declines with its own abundance. The Allee effect arises in response to low abundances of the mobile mut ...
... with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effect can occur such that the per capita growth rate of the non-mobile mutualist declines with its own abundance. The Allee effect arises in response to low abundances of the mobile mut ...
Habitat Selection and Population Regulation in
... more than 50 years ago (Svärdsson 1949; Morisita 1950), competition has played a major role in ecological theories explaining the habitat use of organisms. Starting with the seminal work on the ideal free distribution (IFD) by Fretwell and Lucas (1970) and Fretwell (1972), the ideas about how compe ...
... more than 50 years ago (Svärdsson 1949; Morisita 1950), competition has played a major role in ecological theories explaining the habitat use of organisms. Starting with the seminal work on the ideal free distribution (IFD) by Fretwell and Lucas (1970) and Fretwell (1972), the ideas about how compe ...
Report of the Working Group on Deep
... disaggregated basis to identify geographic areas where the only fishing would be at a seamount. It was noted that many stocks of fish assessed (or evaluated) by ICES that occur at seamounts were described as depleted (or similar words), but the degree to which the seamounts were important for these ...
... disaggregated basis to identify geographic areas where the only fishing would be at a seamount. It was noted that many stocks of fish assessed (or evaluated) by ICES that occur at seamounts were described as depleted (or similar words), but the degree to which the seamounts were important for these ...
Curriculum Vitae
... NSF DEB-1457697, “Predation, competition, and establishment dynamics within an insular adaptive radiation” (PI) NSF DEB-1355122, “Causes and consequences of regular spatial patterning in foundation species: theoretical development and experimental tests in an African savanna” (co-PI) NSF DDIG DEB-15 ...
... NSF DEB-1457697, “Predation, competition, and establishment dynamics within an insular adaptive radiation” (PI) NSF DEB-1355122, “Causes and consequences of regular spatial patterning in foundation species: theoretical development and experimental tests in an African savanna” (co-PI) NSF DDIG DEB-15 ...
Annemarie Nagle
... have even been used to predict future effects of climate change on vegetation patterns on Earth. Tausch, et. al. used information from past fluctuations in plant cover during ancient climate changes as well as “the concepts of thresholds, multiple steady states, and multiple successional pathways [ ...
... have even been used to predict future effects of climate change on vegetation patterns on Earth. Tausch, et. al. used information from past fluctuations in plant cover during ancient climate changes as well as “the concepts of thresholds, multiple steady states, and multiple successional pathways [ ...
Evolution - Krishikosh
... relations with the world outside science may undoubtedly be of value to scientists as well as to others. Study of the lives of those who have advanced science will show how their thought developed both as the result of their own work and by contact with others; and consideration of the advance of sc ...
... relations with the world outside science may undoubtedly be of value to scientists as well as to others. Study of the lives of those who have advanced science will show how their thought developed both as the result of their own work and by contact with others; and consideration of the advance of sc ...
THE INFLUENCE OF THE AFRICAN ELEPHANT (LOXODONTA
... sampled during the late dry season, a subset of eight species made up 95% of the elephant diet on both study sites and, within this narrow range, certain species were preferred to others. Shrubs between 1m and 2.5m in height and trees above 4.5m were the selected target. Utilization of distinct heig ...
... sampled during the late dry season, a subset of eight species made up 95% of the elephant diet on both study sites and, within this narrow range, certain species were preferred to others. Shrubs between 1m and 2.5m in height and trees above 4.5m were the selected target. Utilization of distinct heig ...
white rock wind farm pty limited
... The study area is situated within the Border Rivers/Gwyder Catchment Management Area (CMA). The Inverell Local Government Area’s natural environment consists of open forests, woodlands, riparian communities, sedgelands, wetlands and aquatic habitats. Broader district and regional conservation areas ...
... The study area is situated within the Border Rivers/Gwyder Catchment Management Area (CMA). The Inverell Local Government Area’s natural environment consists of open forests, woodlands, riparian communities, sedgelands, wetlands and aquatic habitats. Broader district and regional conservation areas ...
Epizoic Bryozoans on Predatory Pycnogonids from the South
... of the substratum during open water periods, and Antarctic bryozoans are specifically preyed upon by pycnogonids. Based on this, it was hypothesized that Antarctic bryozoans should foul pycnogonids more than other motile hosts and other sessile biotic and abiotic substrata. To test these hypotheses, ...
... of the substratum during open water periods, and Antarctic bryozoans are specifically preyed upon by pycnogonids. Based on this, it was hypothesized that Antarctic bryozoans should foul pycnogonids more than other motile hosts and other sessile biotic and abiotic substrata. To test these hypotheses, ...
potential mechanisms underlying the displacement of native red
... Abstract. The bullfrog (Rana catesbeiana) is a widespread invasive species that may displace several species of native ranid frogs throughout its introduced range. Although this pattern is well known, the underlying mechanism of displacement remains unclear. Previous work has suggested that interact ...
... Abstract. The bullfrog (Rana catesbeiana) is a widespread invasive species that may displace several species of native ranid frogs throughout its introduced range. Although this pattern is well known, the underlying mechanism of displacement remains unclear. Previous work has suggested that interact ...
Adaptive management of temperate reefs to minimise effects
... species in this dataset could be clearly determined to be responding to climate signals through time, a range of community level metrics did show significant trends when examined for the fish assemblage. Signatures of a warming trend could be seen in metrics such as functional trait richness, and fu ...
... species in this dataset could be clearly determined to be responding to climate signals through time, a range of community level metrics did show significant trends when examined for the fish assemblage. Signatures of a warming trend could be seen in metrics such as functional trait richness, and fu ...
Geography - Sale High School Test
... I can describe the 4 types of plate boundary: constructive, destructive collision and conservative. I can describe where tectonic hazards are found in the world and I can explain why they are found there referring to the Pacific Ring of Fire I can describe in detail what happens at the 3 main bounda ...
... I can describe the 4 types of plate boundary: constructive, destructive collision and conservative. I can describe where tectonic hazards are found in the world and I can explain why they are found there referring to the Pacific Ring of Fire I can describe in detail what happens at the 3 main bounda ...
Biome Notes - Tuslaw Local School District
... ecosystem can support depends on adequate biotic (living) resources (e.g., plants, animals) and abiotic (non-living) resources (e.g., light, water, soil). 7th – Life 5. Explain that some environmental changes occur slowly while others occur rapidly (e.g. forest and pond succession, fires and decompo ...
... ecosystem can support depends on adequate biotic (living) resources (e.g., plants, animals) and abiotic (non-living) resources (e.g., light, water, soil). 7th – Life 5. Explain that some environmental changes occur slowly while others occur rapidly (e.g. forest and pond succession, fires and decompo ...
Habitats in Danger
... Fundación Biodiversidad has given Oceana the opportunity to demonstrate new criteria in support of the selection of marine habitats of interest to the European Community. The context of the project is included within our mission and exclusive dedication to researching, protecting and recuperating th ...
... Fundación Biodiversidad has given Oceana the opportunity to demonstrate new criteria in support of the selection of marine habitats of interest to the European Community. The context of the project is included within our mission and exclusive dedication to researching, protecting and recuperating th ...
Chapter 52
... dynamic systems that cover most of Earth • Biomes are the major ecological associations that occupy broad geographic regions of land or water • Varying combinations of biotic and abiotic factors determine the nature of biomes ...
... dynamic systems that cover most of Earth • Biomes are the major ecological associations that occupy broad geographic regions of land or water • Varying combinations of biotic and abiotic factors determine the nature of biomes ...
algae, calcified
... evolved and became abundant in shallow seas, so too did the crustose corallines diversify and come to dominate many coastal zones. In the western North Atlantic, a particularly tight algal–herbivore association evolved. The ...
... evolved and became abundant in shallow seas, so too did the crustose corallines diversify and come to dominate many coastal zones. In the western North Atlantic, a particularly tight algal–herbivore association evolved. The ...
Slide 1
... Our modern population-biology view derives primarily from Gleason’s conceptual model, even though Clementsian ideas of deterministic progression through seral to climax stages dominated ecological theory well into the 20th century (see Connell & Slatyer 1977) Photos from http://oz.plymouth.edu/~lts/ ...
... Our modern population-biology view derives primarily from Gleason’s conceptual model, even though Clementsian ideas of deterministic progression through seral to climax stages dominated ecological theory well into the 20th century (see Connell & Slatyer 1977) Photos from http://oz.plymouth.edu/~lts/ ...
Biogeography
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals.Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, geology, and physical geography.Modern biogeographic research combines information and ideas from many fields, from the physiological and ecological constraints on organismal dispersal to geological and climatological phenomena operating at global spatial scales and evolutionary time frames.The short-term interactions within a habitat and species of organisms describe the ecological application of biogeography. Historical biogeography describes the long-term, evolutionary periods of time for broader classifications of organisms. Early scientists, beginning with Carl Linnaeus, contributed theories to the contributions of the development of biogeography as a science. Beginning in the mid-18th century, Europeans explored the world and discovered the biodiversity of life. Linnaeus initiated the ways to classify organisms through his exploration of undiscovered territories.The scientific theory of biogeography grows out of the work of Alexander von Humboldt (1769–1859), Hewett Cottrell Watson (1804–1881), Alphonse de Candolle (1806–1893), Alfred Russel Wallace (1823–1913), Philip Lutley Sclater (1829–1913) and other biologists and explorers.