Full Article pdf
... current ones were established with the help of small populations that persisted within microclimate pockets in areas otherwise considered as unsuitable. Recent studies suggest that a predicted loss of ‘core’ habitat does not necessarily imply population extinction (although it certainly implies grea ...
... current ones were established with the help of small populations that persisted within microclimate pockets in areas otherwise considered as unsuitable. Recent studies suggest that a predicted loss of ‘core’ habitat does not necessarily imply population extinction (although it certainly implies grea ...
Chapter 1 - Edinburgh Research Archive
... The West Lothian Question 4. Reproduction: Continued invasion of species is by seed dispersal from locally established vegetation and from neighbouring areas and is dependent on the reproductive output of individual plants and population size. Reproduction is a function of the number of flowering h ...
... The West Lothian Question 4. Reproduction: Continued invasion of species is by seed dispersal from locally established vegetation and from neighbouring areas and is dependent on the reproductive output of individual plants and population size. Reproduction is a function of the number of flowering h ...
Trophic resource partitioning within a shorebird community feeding
... different sizes, with larger-bodied species feeding on larger prey of wider size range and small-bodied species feeding on smaller prey with less variability in their selection. Different methods such as stomach content or faeces analysis have previously been used to describe the diet and consequent ...
... different sizes, with larger-bodied species feeding on larger prey of wider size range and small-bodied species feeding on smaller prey with less variability in their selection. Different methods such as stomach content or faeces analysis have previously been used to describe the diet and consequent ...
Great Victoria Desert - Natural Resources South Australia
... spend most of their time together. Nest building and maintenance take about 11 months of the year so they are usually found in the vicinity of the nest. Malleefowl mounds are approximately four metres across and 75cm high, made of leaves and sandy earth. They incubate their eggs inside these mounds, ...
... spend most of their time together. Nest building and maintenance take about 11 months of the year so they are usually found in the vicinity of the nest. Malleefowl mounds are approximately four metres across and 75cm high, made of leaves and sandy earth. They incubate their eggs inside these mounds, ...
08
... estimated to be about 30 (Arcand et al. 2002). Nestegis sandwicensis is an endemic tree 8-25 m tall found in dry to mesic forest on all of the main Hawaiian islands (except Ni‘ihau) (Wagner et al. 1999). It is locally common in the KMU where it serves as the plant host to native snails in the genus ...
... estimated to be about 30 (Arcand et al. 2002). Nestegis sandwicensis is an endemic tree 8-25 m tall found in dry to mesic forest on all of the main Hawaiian islands (except Ni‘ihau) (Wagner et al. 1999). It is locally common in the KMU where it serves as the plant host to native snails in the genus ...
paper - Jordi Bascompte
... that the level of resolution of the food web is not homogeneous through all ecological groups. Thus, while fishes are resolved at the species level, other species such as zooplankton and invertebrates are highly aggregated. It should also be acknowledged that sampling surveys may fail to account for ...
... that the level of resolution of the food web is not homogeneous through all ecological groups. Thus, while fishes are resolved at the species level, other species such as zooplankton and invertebrates are highly aggregated. It should also be acknowledged that sampling surveys may fail to account for ...
2.71 mb pdf - Environmental Information Service
... al., 2014, this issue), on which the species description is based. Collections were made in the same area by Tweddle et al. (2004) followed by more extensive surveys in the following decade in the distribution range of the species and also in surrounding areas. The species was found in more pans in ...
... al., 2014, this issue), on which the species description is based. Collections were made in the same area by Tweddle et al. (2004) followed by more extensive surveys in the following decade in the distribution range of the species and also in surrounding areas. The species was found in more pans in ...
Jepsen Breeding J Ornithology 157
... circumpolar distribution mainly at 50–65 °N in the boreal climatic zone, breeding in North America, mainland Europe, Iceland, the Faroes and Scotland (Bird Life International 2011). In Norway, the species extends between 60°520 and 69°300 , and so forms one of the most northerly ranges for the speci ...
... circumpolar distribution mainly at 50–65 °N in the boreal climatic zone, breeding in North America, mainland Europe, Iceland, the Faroes and Scotland (Bird Life International 2011). In Norway, the species extends between 60°520 and 69°300 , and so forms one of the most northerly ranges for the speci ...
File - Oxford Megafauna conference
... not only because of the wealth of available archaeological, paleontological, and environmental data, but also because it has by far the largest number of radiocarbon dates made directly on megafaunal remains. Our research over the past 13 years, funded by the UK Natural Environment Research Council, ...
... not only because of the wealth of available archaeological, paleontological, and environmental data, but also because it has by far the largest number of radiocarbon dates made directly on megafaunal remains. Our research over the past 13 years, funded by the UK Natural Environment Research Council, ...
A case for microbial endemism - The International Biogeography
... The fifth and final part of the book focuses on how biogeographic patterns illuminate the processes creating these patterns. Each of these chapters suggests several testable hypotheses for future research. For instance, Jenkins et al. (Chapter 15) consider the relationship ...
... The fifth and final part of the book focuses on how biogeographic patterns illuminate the processes creating these patterns. Each of these chapters suggests several testable hypotheses for future research. For instance, Jenkins et al. (Chapter 15) consider the relationship ...
Alien marine species in Icelandic waters
... Cancer irroratus • Increase in sea temperature has made it possible for the larvae to develop – Takes ca 50 days at 10°C – Conditions are from Vestmannaeyjar to Eyjafjördur ...
... Cancer irroratus • Increase in sea temperature has made it possible for the larvae to develop – Takes ca 50 days at 10°C – Conditions are from Vestmannaeyjar to Eyjafjördur ...
Global ecological impacts of invasive species in aquatic ecosystems
... opposite effect: their filtering activity increases water clarity fostering aquatic macrophytes, whereas the new habitat formed by the shells provides food and shelter to aquatic macroinvertebrates (Ward & Ricciardi, 2007). The overgrowth of macrophytes such as cordgrass (Spartina spp.) and common r ...
... opposite effect: their filtering activity increases water clarity fostering aquatic macrophytes, whereas the new habitat formed by the shells provides food and shelter to aquatic macroinvertebrates (Ward & Ricciardi, 2007). The overgrowth of macrophytes such as cordgrass (Spartina spp.) and common r ...
Dasyurus viverrinus, Eastern Quoll
... spotlighting methodology was standardized in 1985. Analysis by Fancourt et al. (2013) of spotlight surveys from 147 sites across Tasmania revealed a 52% reduction in the number of Eastern Quoll sightings over the 10 years to 2009. Declines of 61-100% were observed in trapping surveys at three study ...
... spotlighting methodology was standardized in 1985. Analysis by Fancourt et al. (2013) of spotlight surveys from 147 sites across Tasmania revealed a 52% reduction in the number of Eastern Quoll sightings over the 10 years to 2009. Declines of 61-100% were observed in trapping surveys at three study ...
ch16 (1) - Napa Valley College
... Low reproductive rates Requiring specialized breeding areas Having specialized feeding habitats © 2012 John Wiley & Sons, Inc. All rights reserved. ...
... Low reproductive rates Requiring specialized breeding areas Having specialized feeding habitats © 2012 John Wiley & Sons, Inc. All rights reserved. ...
Trophic Level Effects on Species Diversity in Arthropod
... 1971), but window-pane traps do collect Coleoptera efficiently (Coulson et al. 1970). Our calculations are based on lumped data from the 2 kinds of traps. Also, we would expect similar efficiencies in the 2 types of watersheds. Table 2 summarizes the 3 indices of diversity calculated for the samples ...
... 1971), but window-pane traps do collect Coleoptera efficiently (Coulson et al. 1970). Our calculations are based on lumped data from the 2 kinds of traps. Also, we would expect similar efficiencies in the 2 types of watersheds. Table 2 summarizes the 3 indices of diversity calculated for the samples ...
arXiv:q-bio/0607016v1 [q
... nutrient). In our study region, among the chosen species Coscinodiscus sp is the most dominant in biomass throughout the sampling period (see Figure 1). Because the species have been identified in a common sampling and from a common field, it is reasonable to assume that the ecological and biologica ...
... nutrient). In our study region, among the chosen species Coscinodiscus sp is the most dominant in biomass throughout the sampling period (see Figure 1). Because the species have been identified in a common sampling and from a common field, it is reasonable to assume that the ecological and biologica ...
Caddisfly diapause aggregations facilitate benthic invertebrate colonization
... richness. Data sets were analysed first using a , the results of which were highly significant (Table 2). We therefore proceeded with individual s for log10 (total abundance), species density and species richness. For the community-level response variables, a randomized-block one-way ...
... richness. Data sets were analysed first using a , the results of which were highly significant (Table 2). We therefore proceeded with individual s for log10 (total abundance), species density and species richness. For the community-level response variables, a randomized-block one-way ...
a haunting legacy from isoclines: mammal
... What kind of system would one use to test our ability to draw isolegs and measure competition from isodars? One would choose, presumably, as simple a community as possible in which similar species possess well-documented habitat preferences that may be caused by interspecific competition. I have dra ...
... What kind of system would one use to test our ability to draw isolegs and measure competition from isodars? One would choose, presumably, as simple a community as possible in which similar species possess well-documented habitat preferences that may be caused by interspecific competition. I have dra ...
The role of abiotic and biotic factors in determining coexistence of
... T. cassandra, occurs across eastern North America and coexists with both pollinator species, although at lower densities (Marr et al. 2001). Ecologically, the only difference between T. cassandra and T. intermedia is that the former is a pollinator and deposits eggs into flowers while the latter ca ...
... T. cassandra, occurs across eastern North America and coexists with both pollinator species, although at lower densities (Marr et al. 2001). Ecologically, the only difference between T. cassandra and T. intermedia is that the former is a pollinator and deposits eggs into flowers while the latter ca ...
Status of the world`s marine species
... been assessed for the first time (Carpenter et al. 2008).These reef-building corals are essential habitat for many species of fish and invertebrates making them the most biologically diverse ecosystems in the ocean. More than one-quarter of these corals (27%) have been listed in threatened categorie ...
... been assessed for the first time (Carpenter et al. 2008).These reef-building corals are essential habitat for many species of fish and invertebrates making them the most biologically diverse ecosystems in the ocean. More than one-quarter of these corals (27%) have been listed in threatened categorie ...
vertical and horizontal habitats of fruit
... Sumatra for more than 500 000 years. The study was carried out on Siberut, the Mentawai’s largest and least disturbed island, using standard banana-baiting at three vertical (1m, 15m, and 30m) and two horizontal levels (natural and disturbed forest), expending an effort of 544 trap-days. Overall cap ...
... Sumatra for more than 500 000 years. The study was carried out on Siberut, the Mentawai’s largest and least disturbed island, using standard banana-baiting at three vertical (1m, 15m, and 30m) and two horizontal levels (natural and disturbed forest), expending an effort of 544 trap-days. Overall cap ...
Tree Regeneration in Response to Prescribed Fire, Thinning, and
... •Shelterwood treatments resulted in the lowest abundance of incense-cedar, but white fir appears to regenerate well in all treatment combinations. Multiple entries over time maybe required in these forests if reductions in shade tolerant species is a management objective. •Analysis of environmental ...
... •Shelterwood treatments resulted in the lowest abundance of incense-cedar, but white fir appears to regenerate well in all treatment combinations. Multiple entries over time maybe required in these forests if reductions in shade tolerant species is a management objective. •Analysis of environmental ...
Parasitology Meets Ecology on Its Own Terms
... in the literature on free-living forms and it can easily be compounded, e.g., microhabitat, habitat-specific. Further, recognizing the complexity of many parasite life cycles, it will often be necessary to describe the surroundings of free-living phases, particularly in autecological studies. The us ...
... in the literature on free-living forms and it can easily be compounded, e.g., microhabitat, habitat-specific. Further, recognizing the complexity of many parasite life cycles, it will often be necessary to describe the surroundings of free-living phases, particularly in autecological studies. The us ...
Predicting distributions of species richness and species size in
... undisturbed habitats, compared with less fertile or more disturbed habitats. It does not, however, explain why there are relatively few species that are not excluded from these habitats. This mechanism involving competitive exclusion is, again, only a proximate ecological one, i.e. differences in th ...
... undisturbed habitats, compared with less fertile or more disturbed habitats. It does not, however, explain why there are relatively few species that are not excluded from these habitats. This mechanism involving competitive exclusion is, again, only a proximate ecological one, i.e. differences in th ...
Invasive Species
... Variation in the extent to which a community, ecosystem, or region is invaded could be simply due to differences in the number of aliens that have arrived in the community. Consequently, it is imperative to ask not only whether a community has more alien species than another, but whether it is intrin ...
... Variation in the extent to which a community, ecosystem, or region is invaded could be simply due to differences in the number of aliens that have arrived in the community. Consequently, it is imperative to ask not only whether a community has more alien species than another, but whether it is intrin ...