What Are Communities?
... Example: In Community A, the dominant species might have a strong negative effect on the three rare species. Experiments that add or remove species are used to explore these relationships. ...
... Example: In Community A, the dominant species might have a strong negative effect on the three rare species. Experiments that add or remove species are used to explore these relationships. ...
INTRODUCTION - Information technology
... – Damuth found the population density of herbivorous mammals decreased with increased body size. – Peters and Wassenberg found aquatic invertebrates tend to have higher population densities than terrestrial invertebrates of similar size. – WHY?!? • Mammals tend to have higher population densities th ...
... – Damuth found the population density of herbivorous mammals decreased with increased body size. – Peters and Wassenberg found aquatic invertebrates tend to have higher population densities than terrestrial invertebrates of similar size. – WHY?!? • Mammals tend to have higher population densities th ...
Unit 3 - Cerritos College
... also explain animals fossils discovered in some unlikely places. a) Seychelles Island – granite chunk of India – has frogs on it b) Marsupials did not originate in Australia, but in South America. Marsupial fossils are found in Antarctica! 3. Land Bridges – Migrate – Lose Bridge Siberian Land Bridge ...
... also explain animals fossils discovered in some unlikely places. a) Seychelles Island – granite chunk of India – has frogs on it b) Marsupials did not originate in Australia, but in South America. Marsupial fossils are found in Antarctica! 3. Land Bridges – Migrate – Lose Bridge Siberian Land Bridge ...
2014 Bee Niche and N..
... niches of species. Niche segregation may involve several dimensions of the niche, such as diet, space, and time. We measured the level of redundancy and complementarity of a bee–plant interaction network in an agricultural system. Because flower resource diversity is high and resource abundance asso ...
... niches of species. Niche segregation may involve several dimensions of the niche, such as diet, space, and time. We measured the level of redundancy and complementarity of a bee–plant interaction network in an agricultural system. Because flower resource diversity is high and resource abundance asso ...
Invasions of the Brown Tree Snake
... ecological vulnerabilities that led to mass extirpations on Guam, but also the bulk of the remaining habitat for Marianas' native species is on islands that have received stowaway snakes from Guam. Hawaii suffered major losses in its vertebrate fauna after the arrival of the Polynesians and again af ...
... ecological vulnerabilities that led to mass extirpations on Guam, but also the bulk of the remaining habitat for Marianas' native species is on islands that have received stowaway snakes from Guam. Hawaii suffered major losses in its vertebrate fauna after the arrival of the Polynesians and again af ...
Comparison of species sensitivity distributions based on population
... organisms are adapted from long to this pollutant. Hence, phenotypes more protective for the life history traits with the greater impact on their fitness (and hence on population dynamics at the population level) were selected in the past. For instance, the sensitivity of C. riparius life cycle par ...
... organisms are adapted from long to this pollutant. Hence, phenotypes more protective for the life history traits with the greater impact on their fitness (and hence on population dynamics at the population level) were selected in the past. For instance, the sensitivity of C. riparius life cycle par ...
Dasyornis brachypterus, Eastern Bristlebird
... feral predator control (Bain et al. 2008, Lindenmayer et al. 2009). Extensive fire can be a catastrophic threat, eliminating the species for at least three years post-fire followed by increasing density until at least 15 years post-fire (Baker 1997). This increase is slower for sites with a post-fir ...
... feral predator control (Bain et al. 2008, Lindenmayer et al. 2009). Extensive fire can be a catastrophic threat, eliminating the species for at least three years post-fire followed by increasing density until at least 15 years post-fire (Baker 1997). This increase is slower for sites with a post-fir ...
Soil detritivore macro-invertebrate assemblages throughout a
... communities were lower in Rg when compared to other phases while no significant change was observed for soil-inhabiting invertebrates (Fig. 1). Except for Rg, mean SR was also significantly higher for litter-dwelling invertebrates than for soildwelling invertebrates. Mean J was very high (> 0.80) ...
... communities were lower in Rg when compared to other phases while no significant change was observed for soil-inhabiting invertebrates (Fig. 1). Except for Rg, mean SR was also significantly higher for litter-dwelling invertebrates than for soildwelling invertebrates. Mean J was very high (> 0.80) ...
Co-occurrence of demersal fishes in a tropical bay in
... that can vary from those with almost no constraints to those that are highly constrained by the structure of the real matrix. These constraints of the algorithms are based on maintaining (or not) the same totals of the rows and columns of the real matrix. In a data matrix in which samples are in col ...
... that can vary from those with almost no constraints to those that are highly constrained by the structure of the real matrix. These constraints of the algorithms are based on maintaining (or not) the same totals of the rows and columns of the real matrix. In a data matrix in which samples are in col ...
identifying diurnal and nocturnal frugivores in the terrestrial and
... distinct monsoonal peaks in May and November (Gunatilleke & Gunatilleke 1996). The vegetation is categorized as lowland tropical wet evergreen forest. It is dominated by species of Dipterocarpaceae, Clusiaceae, Sapotaceae, Bombacaceae, and Myrtaceae (Gunatilleke & Gunatilleke 1996). A survey of wood ...
... distinct monsoonal peaks in May and November (Gunatilleke & Gunatilleke 1996). The vegetation is categorized as lowland tropical wet evergreen forest. It is dominated by species of Dipterocarpaceae, Clusiaceae, Sapotaceae, Bombacaceae, and Myrtaceae (Gunatilleke & Gunatilleke 1996). A survey of wood ...
PPT Slide - Tennessee State University
... beech-maple forest perpetuates itself, and its general appearance changes little despite constant replacement of individuals within the ...
... beech-maple forest perpetuates itself, and its general appearance changes little despite constant replacement of individuals within the ...
Topic 3: Biodiversity Under Threat - School
... growth: lots of light, warmth and rain promote growth ...
... growth: lots of light, warmth and rain promote growth ...
Support and guidance - Unit 3, topic 3: Biodiversity Under
... growth: lots of light, warmth and rain promote growth ...
... growth: lots of light, warmth and rain promote growth ...
introduced and invasive fish species
... documented. While invading species have undoubtedly been responsible declines of native fishes, the invaded environments are typically already severely altered by human activity. Because invasion is a natural process (although not at the rate observed today), many native fishes seem to have the capa ...
... documented. While invading species have undoubtedly been responsible declines of native fishes, the invaded environments are typically already severely altered by human activity. Because invasion is a natural process (although not at the rate observed today), many native fishes seem to have the capa ...
Interspecific Competition and Relative Distribution of the Co
... absence of demonstrable competition, and with no notable differences in distribution on a small scale, I also reject the second part of my hypothesis: Interspecific competition does not affect the relative distribution of these species. Habitat preference appears to be the only factor that would in ...
... absence of demonstrable competition, and with no notable differences in distribution on a small scale, I also reject the second part of my hypothesis: Interspecific competition does not affect the relative distribution of these species. Habitat preference appears to be the only factor that would in ...
File
... removing the competitor and seeing whether the first species expands into the newly available space. o A classic experiment of this type, performed in the rocky intertidal zone of Scotland, showed that competition from one barnacle species kept a second barnacle species from occupying part of its fu ...
... removing the competitor and seeing whether the first species expands into the newly available space. o A classic experiment of this type, performed in the rocky intertidal zone of Scotland, showed that competition from one barnacle species kept a second barnacle species from occupying part of its fu ...
Convergent Evolution
... Thylacosmilus, and the North American placental saber-toothed tiger, Smilodon, evolved long knife-like canine teeth independently (but these were not contemporary). Many other marsupial mammals have undergone convergent evolution with placentals, including wombats (woodchucks), numbats (anteaters), ...
... Thylacosmilus, and the North American placental saber-toothed tiger, Smilodon, evolved long knife-like canine teeth independently (but these were not contemporary). Many other marsupial mammals have undergone convergent evolution with placentals, including wombats (woodchucks), numbats (anteaters), ...
Competition
... competition outside of the lab can be challenging. Chance events, weather, and even experimenters themselves can add noise to the results, obscuring patterns. Competitive relationships can also change over time and from place to place. ...
... competition outside of the lab can be challenging. Chance events, weather, and even experimenters themselves can add noise to the results, obscuring patterns. Competitive relationships can also change over time and from place to place. ...
AP Biology Big Idea 1 part C
... a species as the smallest group of individuals on a phylogenetic tree It applies to sexual and asexual species, but it can be difficult to determine the degree of difference required for separate species ...
... a species as the smallest group of individuals on a phylogenetic tree It applies to sexual and asexual species, but it can be difficult to determine the degree of difference required for separate species ...
Topic 7 Habitats and Sampling Learning Objectives 7.1.1
... Know that organisms have features (adaptations) that enable them to survive in the conditions in which they normally live and that these adaptations may be structural, behavioural or functional. Know that organisms that live in environments that are very extreme, such as at high temperature, pre ...
... Know that organisms have features (adaptations) that enable them to survive in the conditions in which they normally live and that these adaptations may be structural, behavioural or functional. Know that organisms that live in environments that are very extreme, such as at high temperature, pre ...
Unit 9 Ecology Chp 54 Community Ecology Notes
... competitor and seeing whether the first species expands into the newly available space. o A classic experiment of this type, performed in the rocky intertidal zone of Scotland, showed that competition from one barnacle species kept a second barnacle species from occupying part of its fundamental nic ...
... competitor and seeing whether the first species expands into the newly available space. o A classic experiment of this type, performed in the rocky intertidal zone of Scotland, showed that competition from one barnacle species kept a second barnacle species from occupying part of its fundamental nic ...
Invasive non-native species impact scoring
... 3. Score maximum impact and confidence Maximum potential impact is defined as the impact the species would be expected to have in GB if it were established in all parts that are suitable (i.e. based on current biotic and abiotic conditions). Response and confidence scores should be determined in the ...
... 3. Score maximum impact and confidence Maximum potential impact is defined as the impact the species would be expected to have in GB if it were established in all parts that are suitable (i.e. based on current biotic and abiotic conditions). Response and confidence scores should be determined in the ...
Briefing Paper BIO327
... Provide a single sentence statement of the management issue you have identified for your chosen species (i.e. the topic of this briefing paper). Background In this assignment, you will provide background knowledge on the ecology of the species, and details of its threats (for threatened species) or ...
... Provide a single sentence statement of the management issue you have identified for your chosen species (i.e. the topic of this briefing paper). Background In this assignment, you will provide background knowledge on the ecology of the species, and details of its threats (for threatened species) or ...
Western Wildlife Volume 14. Issue 3
... It is generally agreed new species are discovered that life on Earth arose and described each year. in the oceans about 3.8 They are mostly found in billion years ago. These life tropical and sub-tropical forms consisted of single environments, but others cells, gradually forming range well into the ...
... It is generally agreed new species are discovered that life on Earth arose and described each year. in the oceans about 3.8 They are mostly found in billion years ago. These life tropical and sub-tropical forms consisted of single environments, but others cells, gradually forming range well into the ...
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.