a nearly neutral model of biodiversity
... in species’ per capita fecundity on the time to competitive exclusion in a spatially explicit simulation of an isolated two-species metacommunity of Jm individuals. We subsume all aspects of offspring production, offspring survivorship, and offspring establishment into per capita fecundity. Initiall ...
... in species’ per capita fecundity on the time to competitive exclusion in a spatially explicit simulation of an isolated two-species metacommunity of Jm individuals. We subsume all aspects of offspring production, offspring survivorship, and offspring establishment into per capita fecundity. Initiall ...
Adelie penguin Pygoscelis adeliae Standing height: 18
... The Snares Island penguin breeds only on the densely forested Snares ...
... The Snares Island penguin breeds only on the densely forested Snares ...
Where The Wild Extinctions Are
... Natural Resources (IUCN), which lists species which are either extinct or at risk of extinction. The Red List database can be searched online at redlist.org. The other is the CREO list, from the Committee on Recently Extinct Organisms at the American Museum of Natural History. Their database is onl ...
... Natural Resources (IUCN), which lists species which are either extinct or at risk of extinction. The Red List database can be searched online at redlist.org. The other is the CREO list, from the Committee on Recently Extinct Organisms at the American Museum of Natural History. Their database is onl ...
Protists in soil ecology and forest nutrient cycling
... species in the habitat (Krebs 1999). Finally, success at extracting or culturing individuals depends on the care taken in storing samples and on the researcher’s ability with culture techniques. Care must be taken in handling samples if protists are to be extracted: these cells are fragile, with oft ...
... species in the habitat (Krebs 1999). Finally, success at extracting or culturing individuals depends on the care taken in storing samples and on the researcher’s ability with culture techniques. Care must be taken in handling samples if protists are to be extracted: these cells are fragile, with oft ...
Vegetation change: a reunifying concept in plant ecology
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
Mathematical Challenges in Spatial Ecology, Volume 48, Number 11
... In many ecological situations, however, the assumption of being well mixed does not hold, and a spatial model with local interactions is more appropriate and can result in predictions that differ from the well-mixed case. The two most frequently quoted and now classical studies that point to the cen ...
... In many ecological situations, however, the assumption of being well mixed does not hold, and a spatial model with local interactions is more appropriate and can result in predictions that differ from the well-mixed case. The two most frequently quoted and now classical studies that point to the cen ...
Arthropod Pest Management - MESA - University of California, Santa
... • Any time you find a lot of one type of pest insect (more then 5 on 2–3 plants in a row with no predators found in that same area) the pest/beneficial ratio is out of balance and some outside control will be necessary ...
... • Any time you find a lot of one type of pest insect (more then 5 on 2–3 plants in a row with no predators found in that same area) the pest/beneficial ratio is out of balance and some outside control will be necessary ...
Vegetation change: a reunifying concept in plant ecology
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
Standard Deviation
... activity reflects the processes that formed the islands. These processes, together with the extreme isolation of the islands, led to the development of unusual animal life – such as the land iguana, the giant tortoise and the many types of finch – that inspired Charles Darwin’s theory of evolution b ...
... activity reflects the processes that formed the islands. These processes, together with the extreme isolation of the islands, led to the development of unusual animal life – such as the land iguana, the giant tortoise and the many types of finch – that inspired Charles Darwin’s theory of evolution b ...
The Endangered Species Act and the Oil and Gas Industry
... Obligations Under the ESA ESA § 10: Incidental Take Permits & HCPs • Under ESA Section 10, a private party or state or local government undertaking an activity that may result in take of a listed species must obtain an incidental take permit from the applicable Service. • To obtain a permit, the app ...
... Obligations Under the ESA ESA § 10: Incidental Take Permits & HCPs • Under ESA Section 10, a private party or state or local government undertaking an activity that may result in take of a listed species must obtain an incidental take permit from the applicable Service. • To obtain a permit, the app ...
Reptiles - eolss.net
... Of particular relevance to reptilian conservation, and the potential negative impacts of global warming, is that temperature-dependent sex determination exists in many oviparous species of turtles, lizards, snakes and crocodilians. Slight deviations on either side of a particular incubation temperat ...
... Of particular relevance to reptilian conservation, and the potential negative impacts of global warming, is that temperature-dependent sex determination exists in many oviparous species of turtles, lizards, snakes and crocodilians. Slight deviations on either side of a particular incubation temperat ...
Accidental experiments: ecological and evolutionary insights and
... and metapopulation dynamics (e.g. relationships between habitat size and diversity, habitat size and extinction, habitat isolation and colonization) have largely been clarified by the characteristics of populations occurring in habitats reduced and fragmented through anthropogenic disturbances (Bierr ...
... and metapopulation dynamics (e.g. relationships between habitat size and diversity, habitat size and extinction, habitat isolation and colonization) have largely been clarified by the characteristics of populations occurring in habitats reduced and fragmented through anthropogenic disturbances (Bierr ...
Streaked Shearwaters Calonectris leucomelasof the Korean
... Shearwater breeding colonies, four with potential colonies, three possibly extirpated sites and one island where it was thought a breeding colony might be present, but it has now been confirmed that this is not the case (Table 1, Figure 1). 8. Baengnyeong Island (37.950°N 124.680°E) 9. Daecheong Isl ...
... Shearwater breeding colonies, four with potential colonies, three possibly extirpated sites and one island where it was thought a breeding colony might be present, but it has now been confirmed that this is not the case (Table 1, Figure 1). 8. Baengnyeong Island (37.950°N 124.680°E) 9. Daecheong Isl ...
Vegetation change: a reunifying concept in plant ecology ARTICLE IN PRESS
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
... accessible to researchers in other areas. Invasion papers were least likely to be cross-linked (6%) with other fields, whereas gap/patch dynamics papers were most likely to be cross-linked (15%). This tendency toward intellectual isolation may be impeding efforts to achieve more powerful generalizati ...
Mountain Cultures, Keystone Species
... individuals and communities, and have the potential to convert the energy into livelihood and conservation actions. Such tools do, however, need to be integrated into more comprehensive planning frameworks and conducted to influence policy-makers. Objectives 3 and 4 were assessed by the extent to wh ...
... individuals and communities, and have the potential to convert the energy into livelihood and conservation actions. Such tools do, however, need to be integrated into more comprehensive planning frameworks and conducted to influence policy-makers. Objectives 3 and 4 were assessed by the extent to wh ...
Why Are Lionfishes (Pterois, Scorpaenidae) So Rare In Their Native
... native ranges, at least during daylight hours when the majority of the surveys examine here were conducted. Pterois volitans (n = 53) and P. antennata (n = 51) were seen most commonly compared to P. radiata (n = 11). Pterois volitans was recorded from a variety of habitats, ranging from structurally ...
... native ranges, at least during daylight hours when the majority of the surveys examine here were conducted. Pterois volitans (n = 53) and P. antennata (n = 51) were seen most commonly compared to P. radiata (n = 11). Pterois volitans was recorded from a variety of habitats, ranging from structurally ...
HOMOGENIZATION OF FRESHWATER FAUNAS Frank J. Rahel
... Benson & Boydstun 1999, Fuller et al. 1999). Ecologists often describe the species assemblage of a local area as the result of filters that reduce the regional species pool to a subset of species that have had the opportunity to colonize the habitat, are physiologically adapted to the abiotic condit ...
... Benson & Boydstun 1999, Fuller et al. 1999). Ecologists often describe the species assemblage of a local area as the result of filters that reduce the regional species pool to a subset of species that have had the opportunity to colonize the habitat, are physiologically adapted to the abiotic condit ...
Does diversity beget diversity? A case study of crops
... were 1/5 of the densities in monoculture (and hence conspecifics were more widely spaced in polycultures). We planted seeds individually by hand, so contamination with weed seeds (which could potentially produce a ‘diversity begets diversity’ artifact) is extremely unlikely. We harvested and weighed ...
... were 1/5 of the densities in monoculture (and hence conspecifics were more widely spaced in polycultures). We planted seeds individually by hand, so contamination with weed seeds (which could potentially produce a ‘diversity begets diversity’ artifact) is extremely unlikely. We harvested and weighed ...
Saving the World`s Terrestrial Megafauna - Research
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
Grazing behaviour, habitat use and diet selection of domestic
... pastures which not have been grazed heavily during the stay at the higher broqs are now grazed again. There are common waiting areas at lower elevation where the animals are held in order to limit grazing of the pastures close to the villages and meadows and harvested fields which are grazed during ...
... pastures which not have been grazed heavily during the stay at the higher broqs are now grazed again. There are common waiting areas at lower elevation where the animals are held in order to limit grazing of the pastures close to the villages and meadows and harvested fields which are grazed during ...
Redalyc.Taxonomic, functional, and phenetic components of
... Patterns regarding evenness do not exist as measured from perspectives of the allocation of individuals to species, the allocation of species to functional groups, or the dispersion of species in phenetic space. This is true not only when examining relationships of these three components of biodiver ...
... Patterns regarding evenness do not exist as measured from perspectives of the allocation of individuals to species, the allocation of species to functional groups, or the dispersion of species in phenetic space. This is true not only when examining relationships of these three components of biodiver ...
AP Biology Summer Assignment- Due Date: Wednesday, Aug 21s
... substrate. Sandy intertidal zones are home to burrowing worms, clams, and crustaceans. Recreational use and oil pollutants have severely reduced numbers of beach-nesting birds and sea turtles. Found in the photic zone of dear tropical waters, coral reefs are highly diverse and productive biomes. The ...
... substrate. Sandy intertidal zones are home to burrowing worms, clams, and crustaceans. Recreational use and oil pollutants have severely reduced numbers of beach-nesting birds and sea turtles. Found in the photic zone of dear tropical waters, coral reefs are highly diverse and productive biomes. The ...
Species diversity: from global decreases to local
... http://tree.trends.com 0169-5347/$ - see front matter q 2003 Elsevier Ltd. All rights reserved. doi:10.1016/S0169-5347(03)00224-6 ...
... http://tree.trends.com 0169-5347/$ - see front matter q 2003 Elsevier Ltd. All rights reserved. doi:10.1016/S0169-5347(03)00224-6 ...
Vaughn.BioScience.2010
... freshwater ecosystems, often linking benthic and pelagic compartments through their high mobility and flexible foraging strategies (Schindler and Scheuerell 2002). Because they frequently occupy higher trophic levels with lower species richness, dominant fishes are also less likely to be replaced by ...
... freshwater ecosystems, often linking benthic and pelagic compartments through their high mobility and flexible foraging strategies (Schindler and Scheuerell 2002). Because they frequently occupy higher trophic levels with lower species richness, dominant fishes are also less likely to be replaced by ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.