Biodiversity and spatial distribution of medusae in the Magellan
... jellyfish: a) the Northern Patagonian Zone, from Puerto Montt (41°S) to the Taitao Peninsula (46°-47°S) (Galea, 2007; Galea et al., 2007; Palma et al., 2007a, 2007b; Villenas et al., 2009; Bravo et al., 2011), b) the Central Patagonian Zone to the Magellan Strait (52°30’S) (Häussermann et al., 2009) ...
... jellyfish: a) the Northern Patagonian Zone, from Puerto Montt (41°S) to the Taitao Peninsula (46°-47°S) (Galea, 2007; Galea et al., 2007; Palma et al., 2007a, 2007b; Villenas et al., 2009; Bravo et al., 2011), b) the Central Patagonian Zone to the Magellan Strait (52°30’S) (Häussermann et al., 2009) ...
in Jaú National Park, Amazonas, Brazil
... in different waterbody and study areas. We analysed the structure similarity of this assemblage. Lake and river habitats were the most similar habitats, and inhabited by at least two species, mainly Caiman crocodilus and Melanosuchus niger. However, those species can also inhabit streams. Streams we ...
... in different waterbody and study areas. We analysed the structure similarity of this assemblage. Lake and river habitats were the most similar habitats, and inhabited by at least two species, mainly Caiman crocodilus and Melanosuchus niger. However, those species can also inhabit streams. Streams we ...
Ecology Name: Date: 1. The diagram below illustrates the
... In a stable, long-existing community, the establishment of a single species per niche is most directly the result of A. ...
... In a stable, long-existing community, the establishment of a single species per niche is most directly the result of A. ...
Powerpoint
... Tasha Johnson - Sex with Aliens: The effects of a showy invasive plant on pollination of a rare endemic wildflower ...
... Tasha Johnson - Sex with Aliens: The effects of a showy invasive plant on pollination of a rare endemic wildflower ...
Wegener and his Theory of Continental Drift
... opposite shores of oceans and which contain evidence of events over extended intervals of geologic time. For example, studies of rocks from many localities on the eastern coast of South America and western coast of Africa (Figure 3) suggest that these regions had remarkably similar histories for the ...
... opposite shores of oceans and which contain evidence of events over extended intervals of geologic time. For example, studies of rocks from many localities on the eastern coast of South America and western coast of Africa (Figure 3) suggest that these regions had remarkably similar histories for the ...
752-4740-1-SP - Oecologia Australis
... thousand sharp “wedges packed close together and driven inwards with incessant blows, sometimes one wedge being struck, and then another with greater force.” (Darwin, 1859 p.631). This metaphor represents nothing more than a scenario promoted by competition. During the 1960s and 1970s, field investi ...
... thousand sharp “wedges packed close together and driven inwards with incessant blows, sometimes one wedge being struck, and then another with greater force.” (Darwin, 1859 p.631). This metaphor represents nothing more than a scenario promoted by competition. During the 1960s and 1970s, field investi ...
PDF, 787 KB
... biodiversity loss. In fact, if the current rate of loss of biological resources is continued, within a few generations that will lead to unprecedented consequences for humankind. The EU and other states have set an objective to halt or significantly reduce the current rate of loss of biodiversity ...
... biodiversity loss. In fact, if the current rate of loss of biological resources is continued, within a few generations that will lead to unprecedented consequences for humankind. The EU and other states have set an objective to halt or significantly reduce the current rate of loss of biodiversity ...
PDF
... according to available data on biogeographic patterns and environmental drivers on dispersal. Bathomes are identified according to depth strata defined by species distributions. Environmental types are uniquely classified according to the geomorphic features found within the bathomes in each ecoregi ...
... according to available data on biogeographic patterns and environmental drivers on dispersal. Bathomes are identified according to depth strata defined by species distributions. Environmental types are uniquely classified according to the geomorphic features found within the bathomes in each ecoregi ...
Processes affecting diversity
... Connell proposed disturbance is a prevalent feature that significantly influences community diversity. Proposed both high and low levels of disturbance would reduce diversity. ...
... Connell proposed disturbance is a prevalent feature that significantly influences community diversity. Proposed both high and low levels of disturbance would reduce diversity. ...
Biodiversity and Climate Change: Integrating Evolutionary and
... Ecology and evolution have developed as separate fields based on the distinction between “ecological time” and “evolutionary time” made by Slobodkin (1961). Hairston et al. (2005) have proposed that rapid evolution should be defined as genetic changes occurring fast enough to have a measurable impact ...
... Ecology and evolution have developed as separate fields based on the distinction between “ecological time” and “evolutionary time” made by Slobodkin (1961). Hairston et al. (2005) have proposed that rapid evolution should be defined as genetic changes occurring fast enough to have a measurable impact ...
Cockroaches: Ecology, Behavior, and Natural History. William J. Bell
... forests, and therefore, are rarely encountered by humans. The book consists of 10 chapters and begins with a general description of cockroach morphology. Although cockroaches vary widely in their physical appearance, they share a number of morphological features in common. A number of fascinating fe ...
... forests, and therefore, are rarely encountered by humans. The book consists of 10 chapters and begins with a general description of cockroach morphology. Although cockroaches vary widely in their physical appearance, they share a number of morphological features in common. A number of fascinating fe ...
Dinoflagellate Ceratium symmetricum Pavillard (Gonyaulacales
... physico-chemical features, especially with SST in the study area. The other four species are less responsive to warming and tolerant of a wide range of physical condition, whereas the occurrence of a reduced number of C. symmetricum may be indicative of temperature rise in the Sundarban estuary and ...
... physico-chemical features, especially with SST in the study area. The other four species are less responsive to warming and tolerant of a wide range of physical condition, whereas the occurrence of a reduced number of C. symmetricum may be indicative of temperature rise in the Sundarban estuary and ...
Intraspecific trait variation across scales: implications for
... Recognition of the importance of intraspecific variation in ecological processes has been growing, but empirical studies and models of global change have only begun to address this issue in detail. This review discusses sources and patterns of intraspecific trait variation and their consequences for ...
... Recognition of the importance of intraspecific variation in ecological processes has been growing, but empirical studies and models of global change have only begun to address this issue in detail. This review discusses sources and patterns of intraspecific trait variation and their consequences for ...
Landscape Ecology www.AssignmentPoint.com Landscape ecology
... rather the respective species being studied is the point of reference for what constitutes a landscape. Topological ecology at the landscape level of biological organisation (e.g. Urban et al): On the basis of ecological hierarchy theory, it is presupposed that nature is working at multiple scales ...
... rather the respective species being studied is the point of reference for what constitutes a landscape. Topological ecology at the landscape level of biological organisation (e.g. Urban et al): On the basis of ecological hierarchy theory, it is presupposed that nature is working at multiple scales ...
Phenotypic Plasticity in the Interactions and Evolution of Species
... Reciprocal phenotypic change in ecological time may be (i) a primary determinant of an organism’s phenotype in nature; (ii) the result of long-term evolution where the environment (i.e., the species interaction) has been variable; and (iii) a stabilizing factor in mutualistic interactions. A signatu ...
... Reciprocal phenotypic change in ecological time may be (i) a primary determinant of an organism’s phenotype in nature; (ii) the result of long-term evolution where the environment (i.e., the species interaction) has been variable; and (iii) a stabilizing factor in mutualistic interactions. A signatu ...
Phenotypic Plasticity
... Reciprocal phenotypic change in ecological time may be (i) a primary determinant of an organism’s phenotype in nature; (ii) the result of long-term evolution where the environment (i.e., the species interaction) has been variable; and (iii) a stabilizing factor in mutualistic interactions. A signatu ...
... Reciprocal phenotypic change in ecological time may be (i) a primary determinant of an organism’s phenotype in nature; (ii) the result of long-term evolution where the environment (i.e., the species interaction) has been variable; and (iii) a stabilizing factor in mutualistic interactions. A signatu ...
Spatial and Temporal Dimensions of Biodiversity Dynamics
... of diaspores, mainly as seeds conveyed by wind or water from other sites, subsequently leading to an increase in diversity. Nomadic plants with anemochoric seeds are often the first colonisers of these areas. During primary succession initial soil formation occurs, facilitating the establishment of ...
... of diaspores, mainly as seeds conveyed by wind or water from other sites, subsequently leading to an increase in diversity. Nomadic plants with anemochoric seeds are often the first colonisers of these areas. During primary succession initial soil formation occurs, facilitating the establishment of ...
How life-history traits affect ecosystem properties: effects of dispersal
... life-history trait studies and ecosystem properties. We then identify remaining questions that still need to be tackled in meta-ecosystem ecology to answer life-history driven questions. We specify theoretical predictions that need experimental testing, as well as needed theoretical developments, to ...
... life-history trait studies and ecosystem properties. We then identify remaining questions that still need to be tackled in meta-ecosystem ecology to answer life-history driven questions. We specify theoretical predictions that need experimental testing, as well as needed theoretical developments, to ...
Playing Chutes and Ladders: Heterogeneity and
... The real issue is whether or not we can accept the fact that many ecological factors simultaneously determine the patterns we observe in natural communities (Southwood 1975, 1977b, Quinn and Dunham 1983, Courtney 1988, Leibold 1989), that the dominant forces will vary within and among systems (Karr ...
... The real issue is whether or not we can accept the fact that many ecological factors simultaneously determine the patterns we observe in natural communities (Southwood 1975, 1977b, Quinn and Dunham 1983, Courtney 1988, Leibold 1989), that the dominant forces will vary within and among systems (Karr ...
Land use vs. fragment size and isolation as determinants
... a b s t r a c t The remaining Atlantic Forest fragments are structurally isolated by a matrix of pastures, plantations, or urban areas, and most remnants are small (<100 ha). Island biogeography theory has been used to predict the effects of such fragmentation in the remaining fragments, but human a ...
... a b s t r a c t The remaining Atlantic Forest fragments are structurally isolated by a matrix of pastures, plantations, or urban areas, and most remnants are small (<100 ha). Island biogeography theory has been used to predict the effects of such fragmentation in the remaining fragments, but human a ...
Current Normative Concepts in Conservation
... it is now home to 23 (Moyle 1989). Thus its fish fauna is nearly twice as diverse as in its historic condition. The cultural introduction of 16 species has made Clear Lake a more diverse aquatic community than it formerly was, but it is now similar to many other aquatic communities and 5 of its nati ...
... it is now home to 23 (Moyle 1989). Thus its fish fauna is nearly twice as diverse as in its historic condition. The cultural introduction of 16 species has made Clear Lake a more diverse aquatic community than it formerly was, but it is now similar to many other aquatic communities and 5 of its nati ...
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.