Battle of the barnacle newcomers: niche compression in invading
... from having access to all the resources they could potentially use, and are said to be living within their realized rather than their fundamental niches (Hutchinson 1957). This idea is supported by observations of broader resource use by allopatric populations than by populations sympatric with comp ...
... from having access to all the resources they could potentially use, and are said to be living within their realized rather than their fundamental niches (Hutchinson 1957). This idea is supported by observations of broader resource use by allopatric populations than by populations sympatric with comp ...
Effects of biodiversity on ecosystem stability: distinguishing between
... containing many species are more stable (i.e. do vary less over time) than communities containing fewer species. Species covers were estimated every 6 months for 24 months and an index of stability was calculated for total community cover across time (S = mean SD-1). Second, I conducted a synthetic- ...
... containing many species are more stable (i.e. do vary less over time) than communities containing fewer species. Species covers were estimated every 6 months for 24 months and an index of stability was calculated for total community cover across time (S = mean SD-1). Second, I conducted a synthetic- ...
COSEWIC Assessment and Status Report on the Eastern Mountain
... depression of seed production associated with selfing. Small flies are probably the primary pollinators in Nova Scotia. Seed dispersal begins in August, with seeds having no obvious means of long-distance dispersal. Seed longevity in the soil is not documented but is probably limited to a few years ...
... depression of seed production associated with selfing. Small flies are probably the primary pollinators in Nova Scotia. Seed dispersal begins in August, with seeds having no obvious means of long-distance dispersal. Seed longevity in the soil is not documented but is probably limited to a few years ...
spillover and species interactions across habitat edges between
... spillover alters trophic interactions in the recipient habitat. The study of trophic interactions at a community level requires understanding of both direct and indirect interactions. However, community-level indirect interactions are generally difficult to predict and measure, and these have theref ...
... spillover alters trophic interactions in the recipient habitat. The study of trophic interactions at a community level requires understanding of both direct and indirect interactions. However, community-level indirect interactions are generally difficult to predict and measure, and these have theref ...
Evolution in Response to Direct and Indirect Effects in Pitcher Plant
... The central goal of ecology is to explain the distribution and abundance of species. Interactions between organisms and their environment are tightly linked to the evolutionary history of the species, so it follows that the ecology of a community should be linked to the evolutionary history of the s ...
... The central goal of ecology is to explain the distribution and abundance of species. Interactions between organisms and their environment are tightly linked to the evolutionary history of the species, so it follows that the ecology of a community should be linked to the evolutionary history of the s ...
How variation between individuals affects species coexistence
... Superior competitive ability is conferred by high demographic potential (high g and high k) and low sensitivity to competition (low [non-negative] r; eqn (2)). Therefore, if the intuition that individual variation in competitive ability promotes coexistence is correct, then it is variation in these ...
... Superior competitive ability is conferred by high demographic potential (high g and high k) and low sensitivity to competition (low [non-negative] r; eqn (2)). Therefore, if the intuition that individual variation in competitive ability promotes coexistence is correct, then it is variation in these ...
MS Word Document - 2.1 MB - Department of Environment, Land
... reduction program would be advisable. This program should commence 2–3 months before the planned burn is scheduled, because it takes time to reduce the local fox population. Fox control should continue for at least 2 years post-burn or until the habitat and floristic attributes of the site have retu ...
... reduction program would be advisable. This program should commence 2–3 months before the planned burn is scheduled, because it takes time to reduce the local fox population. Fox control should continue for at least 2 years post-burn or until the habitat and floristic attributes of the site have retu ...
Community and foodweb ecology of freshwater mussels
... St Clair, mussels of several species contained up to 15% fatty acids that could have been obtained only from bacteria, but mussels also contained fatty acids derived from algae (Metcalfe-Smith et al. 2007). Field studies have not addressed dissolved organic matter as another potential food source, b ...
... St Clair, mussels of several species contained up to 15% fatty acids that could have been obtained only from bacteria, but mussels also contained fatty acids derived from algae (Metcalfe-Smith et al. 2007). Field studies have not addressed dissolved organic matter as another potential food source, b ...
Competition between harvester ants and rodents in the cold desert
... abimdance are more influential in changing rodent distributions in areas of high ant-density. Our data indicate that D. richardsonii and L. perfoliatiwi seeds were always more abundant in areas of high ant-densities than ...
... abimdance are more influential in changing rodent distributions in areas of high ant-density. Our data indicate that D. richardsonii and L. perfoliatiwi seeds were always more abundant in areas of high ant-densities than ...
Individual dispersal, landscape connectivity and
... II. Individual dispersal and the linkage strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1) Costs and benefits of dispersal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... II. Individual dispersal and the linkage strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1) Costs and benefits of dispersal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Blanchard`s Cricket Frog (Acris blanchardi)
... or in the foreseeable future to sustain the population or improve its abundance. Unknown. At present there are individuals capable of reproduction available in the U.S., however it is not known if individuals are present in Canada. It may be possible to use donor populations from the nearby portions ...
... or in the foreseeable future to sustain the population or improve its abundance. Unknown. At present there are individuals capable of reproduction available in the U.S., however it is not known if individuals are present in Canada. It may be possible to use donor populations from the nearby portions ...
Diversity of Interactions: A Metric for Studies of Biodiversity
... The quantitative investigation of food webs therefore requires the development of sampling schemes designed to infer the properties of the complete community food web from samples that in practice represent only a portion of the community. Current quantitative food-web investigations solve this prob ...
... The quantitative investigation of food webs therefore requires the development of sampling schemes designed to infer the properties of the complete community food web from samples that in practice represent only a portion of the community. Current quantitative food-web investigations solve this prob ...
Annex C
... Lyons 2012; Parker 1982). Studies of closely related species inhabiting tropical areas suggest that growth rates are likely to be high. However, like closely related species, L. albertisii probably only reproduces every second year (Madsen and Shine, 2000). For this reason we follow a precautionary ...
... Lyons 2012; Parker 1982). Studies of closely related species inhabiting tropical areas suggest that growth rates are likely to be high. However, like closely related species, L. albertisii probably only reproduces every second year (Madsen and Shine, 2000). For this reason we follow a precautionary ...
Functional uniformity - Portsmouth Research Portal
... preadapted to life) in this habitat across a range of localities through all oceans and across all ...
... preadapted to life) in this habitat across a range of localities through all oceans and across all ...
Structure and Function of Chihuahuan Desert
... perspective because it is a source of newly discovered (and potentially rare) ant species (MacKay and MacKay 2002) and possesses a higher richness than similar environments elsewhere (e.g., the Sevilleta LTER; Bestelmeyer and Wiens 2001b). Within sandy soils, however, mesquite cover may be a key fac ...
... perspective because it is a source of newly discovered (and potentially rare) ant species (MacKay and MacKay 2002) and possesses a higher richness than similar environments elsewhere (e.g., the Sevilleta LTER; Bestelmeyer and Wiens 2001b). Within sandy soils, however, mesquite cover may be a key fac ...
Rapid, landscape scale responses in riparian tundra
... acknowledged from the tundra. Accentuated by currently changing populations of arctic mammals there is a need to understand impacts of different-sized herbivores on the dynamics of productive tundra plant communities. Here we assess the differential effects of ungulate (reindeer) and small rodent he ...
... acknowledged from the tundra. Accentuated by currently changing populations of arctic mammals there is a need to understand impacts of different-sized herbivores on the dynamics of productive tundra plant communities. Here we assess the differential effects of ungulate (reindeer) and small rodent he ...
Biology of the black-backed jackal Canis mesomelas
... ra1s1ng the next brood. Bothma (1971 ) recorded a dispersal distance of 103 km. ...
... ra1s1ng the next brood. Bothma (1971 ) recorded a dispersal distance of 103 km. ...
Review of the Impact of Invasive Alien Species on Species Protected
... Alien species (non-native, non-indigenous, foreign, exotic) means a species, subspecies, or lower taxon occurring outside of its natural range (past or present) and dispersal potential (i.e. outside the range it occupies naturally or could not occupy without direct or indirect introduction or care b ...
... Alien species (non-native, non-indigenous, foreign, exotic) means a species, subspecies, or lower taxon occurring outside of its natural range (past or present) and dispersal potential (i.e. outside the range it occupies naturally or could not occupy without direct or indirect introduction or care b ...
PDF
... The combined nxqx schedules (assuming these to represent herbivores only, i.e. predation by carnivores on carnivores is omitted here for simplicity) for all populations yielded prey available for carnivores. Our model of predator-prey interactions is based on random encounters between predator and p ...
... The combined nxqx schedules (assuming these to represent herbivores only, i.e. predation by carnivores on carnivores is omitted here for simplicity) for all populations yielded prey available for carnivores. Our model of predator-prey interactions is based on random encounters between predator and p ...
Environmental and geographic factors driving dung beetle
... islands on community composition and ecosystem function, rather than to survey diversity in many locations. Most recently, Kudavidanage et al. (2012) utilised data from Lee et al. (2009a) and Qie et al. (2011), as well as data from Sri Lanka, to investigate the impacts of habitat disturbance on dung ...
... islands on community composition and ecosystem function, rather than to survey diversity in many locations. Most recently, Kudavidanage et al. (2012) utilised data from Lee et al. (2009a) and Qie et al. (2011), as well as data from Sri Lanka, to investigate the impacts of habitat disturbance on dung ...
2006eugros2
... sizes, E. rosea will eat significantly more small snails than large snails (Table 1). These results are consistent with many other experiments that have examined the prey size preference of E. rosea in the lab (Davis & Butler 1964, Chiu & Chou 1962, Nishida & Napompeth 1975, Cook 1989 a, b) and in t ...
... sizes, E. rosea will eat significantly more small snails than large snails (Table 1). These results are consistent with many other experiments that have examined the prey size preference of E. rosea in the lab (Davis & Butler 1964, Chiu & Chou 1962, Nishida & Napompeth 1975, Cook 1989 a, b) and in t ...
Distribution of the Long-tailed Weasel (Mustela frenata) in Illinois
... Species distribution maps for rare or secretive species are likely to be very sensitive to sample size. Our search for long-tailed weasel specimens resulted in 181 records, which exceeds the 48 examined by Hoffmeister (1989) and the 12 additional records he found in the literature. From the museum s ...
... Species distribution maps for rare or secretive species are likely to be very sensitive to sample size. Our search for long-tailed weasel specimens resulted in 181 records, which exceeds the 48 examined by Hoffmeister (1989) and the 12 additional records he found in the literature. From the museum s ...
FD is a package
... taken as is. When x is a single trait, species with NAs are first excluded to avoid NAs in the distance matrix. If x is a single continuous trait (i.e. of class numeric), a species-species Euclidean distance matrix is computed via dist. If x is a single ordinal trait (i.e. of class ordered), gowdis ...
... taken as is. When x is a single trait, species with NAs are first excluded to avoid NAs in the distance matrix. If x is a single continuous trait (i.e. of class numeric), a species-species Euclidean distance matrix is computed via dist. If x is a single ordinal trait (i.e. of class ordered), gowdis ...
NATURAL HISTORY AND CONSERVATION OF THE EYELASH
... had the greatest ability to explain variation in survival whereas body size and color were less informative. However, sex and body size were correlated in this species because females grew to a larger size than males. The second section focuses on movement and foraging ecology of Bothriechis schlege ...
... had the greatest ability to explain variation in survival whereas body size and color were less informative. However, sex and body size were correlated in this species because females grew to a larger size than males. The second section focuses on movement and foraging ecology of Bothriechis schlege ...
The assembly of tropical tree communities the advances and
... additional studies have yielded similar results both within forest plots and on regional scales (Kraft and Ackerly 2010, Pei et al. 2011, Eiserhardt et al. in press, Liu et al. in press). The work by Kraft and Ackerly (2010) also made the important advance of incorporating estimates of statistical p ...
... additional studies have yielded similar results both within forest plots and on regional scales (Kraft and Ackerly 2010, Pei et al. 2011, Eiserhardt et al. in press, Liu et al. in press). The work by Kraft and Ackerly (2010) also made the important advance of incorporating estimates of statistical p ...