Habitat heterogeneity, biogenic disturbance, and
... Soquel Canyon the addition of new species with increased sampling has slowed suggesting these sites have been reasonably well sampled (Fig. 3). The sampling curves for the remaining two sites, although clearly not asymptotic, do indicate that future sampling will likely return new species at a slowe ...
... Soquel Canyon the addition of new species with increased sampling has slowed suggesting these sites have been reasonably well sampled (Fig. 3). The sampling curves for the remaining two sites, although clearly not asymptotic, do indicate that future sampling will likely return new species at a slowe ...
Pattern of shell utilization by the hermit crab Paguristes tortugae
... rocks and corals and therefore may be better protected by heavy shells in these habitats, with greater stability against currents and a frequent downfall escape movement (hermits enter the shell and drop from the rocks/corals falling to the crevices when they detect the presence of collector/predato ...
... rocks and corals and therefore may be better protected by heavy shells in these habitats, with greater stability against currents and a frequent downfall escape movement (hermits enter the shell and drop from the rocks/corals falling to the crevices when they detect the presence of collector/predato ...
Relationships between body size and abundance in ecology
... In general, less is known about the ISD in terrestrial systems [3]. The one exception is size distributions in tree communities, which are often studied using demographic models [46]. Originally, tree ISDs were characterized as either negative exponentials or power laws [47,48]. However, recent work ...
... In general, less is known about the ISD in terrestrial systems [3]. The one exception is size distributions in tree communities, which are often studied using demographic models [46]. Originally, tree ISDs were characterized as either negative exponentials or power laws [47,48]. However, recent work ...
Fifth National Report to the Convention on Biological Diversity Sweden
... 3‰ for the far north of the Bothnian Bay). With about 50 000 species of plants, fungi and animals, Sweden is relatively species poor, compared to many other countries. This is partly due to the northern location, and partly to the fact that the land was covered with ice until at least 15 000 years a ...
... 3‰ for the far north of the Bothnian Bay). With about 50 000 species of plants, fungi and animals, Sweden is relatively species poor, compared to many other countries. This is partly due to the northern location, and partly to the fact that the land was covered with ice until at least 15 000 years a ...
Western Grassland Reserves interim management
... areas for conservation in Australia. The grasslands of Victoria’s fertile volcanic plain once extended from Melbourne almost to South Australia. They offered rich agricultural opportunity, and were a historically important inducement for the foundation of Melbourne by graziers in the 1830s (Batman 1 ...
... areas for conservation in Australia. The grasslands of Victoria’s fertile volcanic plain once extended from Melbourne almost to South Australia. They offered rich agricultural opportunity, and were a historically important inducement for the foundation of Melbourne by graziers in the 1830s (Batman 1 ...
Abrupt community change on a rocky shore – biological
... successfully the first of the Connell–Sousa requirements. A mussel bed and a stand of canopy-forming algae are very different biological assemblages. They embody alternative states similar in basic character to those in Maine, USA (Petraitis & Dudgeon 1999, Bertness et al. 2002). But are any of thes ...
... successfully the first of the Connell–Sousa requirements. A mussel bed and a stand of canopy-forming algae are very different biological assemblages. They embody alternative states similar in basic character to those in Maine, USA (Petraitis & Dudgeon 1999, Bertness et al. 2002). But are any of thes ...
Climate-related range shifts – a global multidimensional synthesis
... Poleward and upward shifts are the most frequent types of range shifts that have been reported in response to contemporary climate change. However, the number of reports documenting other types of range shifts – such as in east-west directions across longitudes or, even more unexpectedly, towards tr ...
... Poleward and upward shifts are the most frequent types of range shifts that have been reported in response to contemporary climate change. However, the number of reports documenting other types of range shifts – such as in east-west directions across longitudes or, even more unexpectedly, towards tr ...
Impact of pocket gopher disturbance on plant species diversity in a
... t982). Thus, for each plot we obtained a proportion of plants growing in open habitat (i.e. the number of plants growing in pocket gopher disturbances divided by the total number of plants). To quantify the availability of open habitat, we sampled four transects through each 4 x 4 m plot: two diagon ...
... t982). Thus, for each plot we obtained a proportion of plants growing in open habitat (i.e. the number of plants growing in pocket gopher disturbances divided by the total number of plants). To quantify the availability of open habitat, we sampled four transects through each 4 x 4 m plot: two diagon ...
Blanchard`s Cricket Frog (Acris blanchardi)
... The Blanchard’s Cricket Frog is a tiny member of the treefrog family attaining lengths of 1.8 to 3.5 cm with females being somewhat larger (Conant and Collins 1991). As an adult, the species has moist warty skin that is usually gray, brown or olive coloured but may also be partly green or reddish br ...
... The Blanchard’s Cricket Frog is a tiny member of the treefrog family attaining lengths of 1.8 to 3.5 cm with females being somewhat larger (Conant and Collins 1991). As an adult, the species has moist warty skin that is usually gray, brown or olive coloured but may also be partly green or reddish br ...
PDF file
... and may be categorized into several life-forms (Table 11.1, and see Fig. 11.2 for a list of plant species). Most of these species are birddispersed plants (Izhaki and Safriel, 1985; Izhaki, 1986; Barnea et al., 1991; Izhaki et al., 1991), but at least two of them (Ziziphus spinachristi and Styrax of ...
... and may be categorized into several life-forms (Table 11.1, and see Fig. 11.2 for a list of plant species). Most of these species are birddispersed plants (Izhaki and Safriel, 1985; Izhaki, 1986; Barnea et al., 1991; Izhaki et al., 1991), but at least two of them (Ziziphus spinachristi and Styrax of ...
10 OLD WORLD CLIMBING FERN PEST STATUS OF
... Lygodium scandens (L.) Sw., particularly in older works. As many as 40 species have been placed in the genus Lygodium (Mabberley, 1997), but a recent revision has reduced this number to 26 (Hanks, 1998). All but two species are from areas with tropical or subtropical climates. The genus Lygodium has ...
... Lygodium scandens (L.) Sw., particularly in older works. As many as 40 species have been placed in the genus Lygodium (Mabberley, 1997), but a recent revision has reduced this number to 26 (Hanks, 1998). All but two species are from areas with tropical or subtropical climates. The genus Lygodium has ...
Modification of Susceptible and Toxic Herbs on Grassland Disease
... the effects of A. inebrians on biological control organisms and levels of plant diseases in overgrazed grasslands in northwestern China. The results showed that A. inebrians plants were seriously infected by fungal diseases and that this led to a high incidence of the mycoparasitic species Ampelomyc ...
... the effects of A. inebrians on biological control organisms and levels of plant diseases in overgrazed grasslands in northwestern China. The results showed that A. inebrians plants were seriously infected by fungal diseases and that this led to a high incidence of the mycoparasitic species Ampelomyc ...
Apago PDF Enhancer
... Founder effects are not rare in nature. Many selfpollinating plants start new populations from a single seed. Founder effects have been particularly important in the evolution of organisms on distant oceanic islands, such as the Hawaiian and Galápagos Islands. Most of the organisms in such areas pro ...
... Founder effects are not rare in nature. Many selfpollinating plants start new populations from a single seed. Founder effects have been particularly important in the evolution of organisms on distant oceanic islands, such as the Hawaiian and Galápagos Islands. Most of the organisms in such areas pro ...
atoll research bulletin no. 583 coral reef framework
... and roofs, where sedimentation is usually less intensive. Fagerstrom (1984) suggested that the low turbidity in cryptic environments compared to the exposed reef, is the prime controlling factor in the distribution of sclerosponges. Biodiversity in cavities is dependent on species characteristics an ...
... and roofs, where sedimentation is usually less intensive. Fagerstrom (1984) suggested that the low turbidity in cryptic environments compared to the exposed reef, is the prime controlling factor in the distribution of sclerosponges. Biodiversity in cavities is dependent on species characteristics an ...
Volume 4 Number 1 May 2009 - Flinders University Palaeontology
... whiting, we explored. Due to the heat, Circular Pool quickly became a In this issue, as always, we take you favourite ‘watering hole’ for us, back in time. As you’d expect, you’ll literally (if that sound’s gay, then I definitely learn more about the don’t want to be straight ;-), ‘cause it quokka’s ...
... whiting, we explored. Due to the heat, Circular Pool quickly became a In this issue, as always, we take you favourite ‘watering hole’ for us, back in time. As you’d expect, you’ll literally (if that sound’s gay, then I definitely learn more about the don’t want to be straight ;-), ‘cause it quokka’s ...
Movement behaviour and mortality in invasive and indigenous
... across spatial and temporal scales, and it is this difference that determines invasion success and the dynamics of co-existence. In South Africa, the indigenous Perna perna and the invasive Mytilus galloprovincialis are the dominant intertidal mussels on the southern coast, where they co-exist. We c ...
... across spatial and temporal scales, and it is this difference that determines invasion success and the dynamics of co-existence. In South Africa, the indigenous Perna perna and the invasive Mytilus galloprovincialis are the dominant intertidal mussels on the southern coast, where they co-exist. We c ...
Negative competitive effects of invasive plants change with time
... with a different native pairing, except for Verlinden et al. (2013), who measured invaders’ effects with only one native plant pairing. All studies that measured non-significant or low negative competitive effects were included in the meta-analysis. Average effect sizes were calculated for all invad ...
... with a different native pairing, except for Verlinden et al. (2013), who measured invaders’ effects with only one native plant pairing. All studies that measured non-significant or low negative competitive effects were included in the meta-analysis. Average effect sizes were calculated for all invad ...
Picture perception in animals: what about faces?
... functions (Bruce & Young 1998). If it can be established that all primates show similar face processing abilities that would suggest a common evolutionary route for this important ability and possibly for visual cognition more generally. In humans, pictures are used to test these skills and our know ...
... functions (Bruce & Young 1998). If it can be established that all primates show similar face processing abilities that would suggest a common evolutionary route for this important ability and possibly for visual cognition more generally. In humans, pictures are used to test these skills and our know ...
Volume 8, Fall 2009 - Stanford University
... Research has been one of the greatest learning experiences at Stanford for Jonathan Merola. He desires to understand science beyond what is taught from the textbook and in the classroom. To pursue this cause, he has used past summers to extend his research work outside of the academic school year. J ...
... Research has been one of the greatest learning experiences at Stanford for Jonathan Merola. He desires to understand science beyond what is taught from the textbook and in the classroom. To pursue this cause, he has used past summers to extend his research work outside of the academic school year. J ...
Algeria - BirdLife Data Zone
... There are nine globally threatened species in the country and a further two near-threatened. Of these, there are very few recent records for Geronticus eremita (CR), Crex crex (VU) or Tetrax tetrax (NT). G. eremita bred in the Djebel Amour near El Bayad until the early 1980s and was last observed in ...
... There are nine globally threatened species in the country and a further two near-threatened. Of these, there are very few recent records for Geronticus eremita (CR), Crex crex (VU) or Tetrax tetrax (NT). G. eremita bred in the Djebel Amour near El Bayad until the early 1980s and was last observed in ...
Assessment approach - The Department of State Development
... and elevated areas, soil and climatic differences) and land use history, there is a large variation in the extent, condition and trend of all the MNES values. This assessment considers MNES values on a habitat basis (for species), regional ecosystem basis for threatened ecological communities and a ...
... and elevated areas, soil and climatic differences) and land use history, there is a large variation in the extent, condition and trend of all the MNES values. This assessment considers MNES values on a habitat basis (for species), regional ecosystem basis for threatened ecological communities and a ...
FAUNA SURVEY OF BALNARRING PRIMARY SCHOOL
... Cavill (pers. comm.) has noted the decline in occurrence of vertebrates living around the Moorooduc Quarry. Of the mammals, Quolls, Southern Brown Bandicoots and Eastern Grey Kangaroos lasted until around the 1940‟s while the Common Wombat remained until twenty years later. As recently as twenty ye ...
... Cavill (pers. comm.) has noted the decline in occurrence of vertebrates living around the Moorooduc Quarry. Of the mammals, Quolls, Southern Brown Bandicoots and Eastern Grey Kangaroos lasted until around the 1940‟s while the Common Wombat remained until twenty years later. As recently as twenty ye ...
Sudd Area as a Ramsar Site: Biophysical Features
... soils which are interspersed by alfisols. The characteristics of the Sudd soil vary along the lateral extent of the floodplain. Soils of the highland areas are made up of heterogeneous loam soils which are generally alkaline, of low organic matter content, high salinity and a clay content ranging fr ...
... soils which are interspersed by alfisols. The characteristics of the Sudd soil vary along the lateral extent of the floodplain. Soils of the highland areas are made up of heterogeneous loam soils which are generally alkaline, of low organic matter content, high salinity and a clay content ranging fr ...
A generalized functional response for predators
... our model extends optimal foraging theory, which is largely based on the order of preference, but which does not normally take the temporal order of prey intake explicitly into account (van Leeuwen and Jansen, 2010). See Section 4.4 for further discussion. As we show in Appendix A, indifference of p ...
... our model extends optimal foraging theory, which is largely based on the order of preference, but which does not normally take the temporal order of prey intake explicitly into account (van Leeuwen and Jansen, 2010). See Section 4.4 for further discussion. As we show in Appendix A, indifference of p ...
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.