Feedback Theory and Darwinian Evolution
... in Fig. 1 plus the additional term resulting from the competition within the speciest. As seen in Fig. 2, the p e a k distribution o f b o d y size is (almost by definition) to the left of the m a x i m u m of the c o m b i n e d fitness curve. The combined fitness curve will therefore drive the spe ...
... in Fig. 1 plus the additional term resulting from the competition within the speciest. As seen in Fig. 2, the p e a k distribution o f b o d y size is (almost by definition) to the left of the m a x i m u m of the c o m b i n e d fitness curve. The combined fitness curve will therefore drive the spe ...
Chapter 15: Reptiles - Bryophyte Ecology
... Turtle. Photo by US Army Corps of Engineers licensed under Wikimedia Commons. ...
... Turtle. Photo by US Army Corps of Engineers licensed under Wikimedia Commons. ...
Environmental Science Chapter 8 Revision
... 51. The cardon and organ-pipe are flowering cacti that depend on bats for pollination. The bats pollinate the cacti as they eat the nectar in cacti’s flowers and spread seeds when they eat the cactus fruit. Studies of the cacti show that they are not producing as much fruit as they could. It was als ...
... 51. The cardon and organ-pipe are flowering cacti that depend on bats for pollination. The bats pollinate the cacti as they eat the nectar in cacti’s flowers and spread seeds when they eat the cactus fruit. Studies of the cacti show that they are not producing as much fruit as they could. It was als ...
Functional traits, convergent evolution, and periodic tables of niches
... Ecology is often said to lack general theories sufficiently predictive for applications. Here, we examine the concept of a periodic table of niches and feasibility of niche classification schemes from functional trait and performance data. Niche differences and their influence on ecological patterns ...
... Ecology is often said to lack general theories sufficiently predictive for applications. Here, we examine the concept of a periodic table of niches and feasibility of niche classification schemes from functional trait and performance data. Niche differences and their influence on ecological patterns ...
Pollination by Hymenopterans and Ec Hymenopterans and
... globally. According to Gaston K. J. et. al.11 it is the third-largest order of insects and it is reported that around 300,000 species occur in the world. He added that, of these estimated number of species, more than 100 000 species have been described. It includes insects commonly known as bees, an ...
... globally. According to Gaston K. J. et. al.11 it is the third-largest order of insects and it is reported that around 300,000 species occur in the world. He added that, of these estimated number of species, more than 100 000 species have been described. It includes insects commonly known as bees, an ...
Parallel ecological networks in ecosystems Olff, Han
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
Study Guide
... prairie units in an attempt to mimic the grazing of bison. Additionally, certain units may be managed with prescribed fire. ABNC is the only permitted entity in Harris County to use prescribed fire. The stewardship department has a larger goal to create a habitat mosaic. The landscape is not managed ...
... prairie units in an attempt to mimic the grazing of bison. Additionally, certain units may be managed with prescribed fire. ABNC is the only permitted entity in Harris County to use prescribed fire. The stewardship department has a larger goal to create a habitat mosaic. The landscape is not managed ...
enhancing biodiversity hotspots along western
... Queensland’s Stock Route Network (SRN) is a web of stock routes, roads and reserves for travelling stock that covers most of the State. This network is a rich inherited legacy that has far greater benefits than just the movement of livestock, which was and still is their primary role. The stock rout ...
... Queensland’s Stock Route Network (SRN) is a web of stock routes, roads and reserves for travelling stock that covers most of the State. This network is a rich inherited legacy that has far greater benefits than just the movement of livestock, which was and still is their primary role. The stock rout ...
Peay et al 2008 - North American Mycoflora Project
... habitats where fungi cannot be cultured or do not produce fruit bodies. For example, an entirely new subphylum of fungi was discovered using molecular methods to examine the fungal community active beneath snowpacks in high alpine environments (Schadt et al. 2003), and a huge number of novel yeasts ...
... habitats where fungi cannot be cultured or do not produce fruit bodies. For example, an entirely new subphylum of fungi was discovered using molecular methods to examine the fungal community active beneath snowpacks in high alpine environments (Schadt et al. 2003), and a huge number of novel yeasts ...
tive structures) or than characters whose pattern is impressed on
... generally to indicate any condition where there is lack of plasticity. Currently the term homeostasis is widely used in many contexts. In the sense of Cannon (1932) it is the tendency for the characteristics of a physiological or morphological system to be held constant. Plasticity of a character ca ...
... generally to indicate any condition where there is lack of plasticity. Currently the term homeostasis is widely used in many contexts. In the sense of Cannon (1932) it is the tendency for the characteristics of a physiological or morphological system to be held constant. Plasticity of a character ca ...
Fungal Community Ecology: A Hybrid Beast with a Molecular Master
... habitats where fungi cannot be cultured or do not produce fruit bodies. For example, an entirely new subphylum of fungi was discovered using molecular methods to examine the fungal community active beneath snowpacks in high alpine environments (Schadt et al. 2003), and a huge number of novel yeasts ...
... habitats where fungi cannot be cultured or do not produce fruit bodies. For example, an entirely new subphylum of fungi was discovered using molecular methods to examine the fungal community active beneath snowpacks in high alpine environments (Schadt et al. 2003), and a huge number of novel yeasts ...
Parallel ecological networks in ecosystems
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
Research Information on Acacia Erioloba
... 1999), it appears not nearly as important as amount and pattern of rainfall for successful recruitment, as evidenced by the presence of cohorts (Ernst et al. 1990, Hoffman et al. 1994, Barnes 1999, 2001b). Although we know that timing of rain and a certain minimum, frequent amount is required for ge ...
... 1999), it appears not nearly as important as amount and pattern of rainfall for successful recruitment, as evidenced by the presence of cohorts (Ernst et al. 1990, Hoffman et al. 1994, Barnes 1999, 2001b). Although we know that timing of rain and a certain minimum, frequent amount is required for ge ...
Collection of Bait Organisms in Estuaries
... respect to recruitment to estuarine populations. Unlike U. africana, Callianassa kraussi does not have a marine phase during its life cycle and is not dependent on the state of the mouth in order for recruitment to take place. Extensive quantitative investigations of molluscs in Temporary Open Estua ...
... respect to recruitment to estuarine populations. Unlike U. africana, Callianassa kraussi does not have a marine phase during its life cycle and is not dependent on the state of the mouth in order for recruitment to take place. Extensive quantitative investigations of molluscs in Temporary Open Estua ...
Coevolutionary dynamics of adaptive radiation for food
... competition), which is one of the internal factors, induces their coevolution. Their evolutionary changes can also change the ways of interactions among them, which changes their ways of evolution further. Such a feedback process of coevolutionary dynamics may have induced the autonomous diversifica ...
... competition), which is one of the internal factors, induces their coevolution. Their evolutionary changes can also change the ways of interactions among them, which changes their ways of evolution further. Such a feedback process of coevolutionary dynamics may have induced the autonomous diversifica ...
(2007). Targets for ecosystem repair in riparian ecosystems
... In all biomes, riparian ecosystems were generally found to have high ecological resilience to invasion by alien plants, except in some situations of closed alien stands (75-100% canopy cover). This means that where alien invasion is the only (or major) disturbance at a site, and invasion intensity i ...
... In all biomes, riparian ecosystems were generally found to have high ecological resilience to invasion by alien plants, except in some situations of closed alien stands (75-100% canopy cover). This means that where alien invasion is the only (or major) disturbance at a site, and invasion intensity i ...
STATUS OF RARE WOODLAND PLANTS AND LICHENS 1.0
... The issue of diversity and light is at the heart of a deep paradox within woodland conservation. Woodlands should be among our most natural habitats, but removing man’s management results in darker woodlands with lower species diversity. In particular, there is the phenomenon of invasion by native s ...
... The issue of diversity and light is at the heart of a deep paradox within woodland conservation. Woodlands should be among our most natural habitats, but removing man’s management results in darker woodlands with lower species diversity. In particular, there is the phenomenon of invasion by native s ...
Halsey, R.W. and J.E. Keeley. 2016. Conservation issues: California
... vines). In the understory, there may be sparse populations of a few annual and herbaceous perennial species, but these populations fluctuate with annual precipitation. In contrast, shrub canopies are much more open and the diversity is higher in the two other Mediterranean-type climate shrublands, S ...
... vines). In the understory, there may be sparse populations of a few annual and herbaceous perennial species, but these populations fluctuate with annual precipitation. In contrast, shrub canopies are much more open and the diversity is higher in the two other Mediterranean-type climate shrublands, S ...
Zootaxa,Digging down under: Australian
... burrow. Others, particularly in rainforest areas, are frequently collected in flight interception traps. The burrows we have found average about 10–24 cm deep. Occasionally a pair has been taken in the same burrow, but no food has been recorded. Considering how common some species are, it is surpris ...
... burrow. Others, particularly in rainforest areas, are frequently collected in flight interception traps. The burrows we have found average about 10–24 cm deep. Occasionally a pair has been taken in the same burrow, but no food has been recorded. Considering how common some species are, it is surpris ...
- Centre for Biodiversity Theory and Modelling
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
... will be promoted, even though it did not change its behaviour or physiology at all (Ulanowicz 1995). Also, a predator–prey interaction will have a different effect on either population if the prey has to compete with another prey (leading to apparent competition), or, if the predator is a prey itsel ...
Construction and validation of food webs using logic
... potentially be overcome. We demonstrate that a logic-based machine learning method can be used to automatically assign interactions between nodes, thereby generating plausible and testable food webs from ecological census data. Many of the learned trophic links were corroborated by the literature: i ...
... potentially be overcome. We demonstrate that a logic-based machine learning method can be used to automatically assign interactions between nodes, thereby generating plausible and testable food webs from ecological census data. Many of the learned trophic links were corroborated by the literature: i ...
Colonization of artificial seagrass versus time and distance from
... 5 mm wide, the same width as Thalassia testudinum blades. Each clump contained 1000 cm2 of blade surface area, comprised of 100 'blades' grouped into 25 'shoots': 35 blades 8 cm long, 30 blades 10 cm long and 35 blades 12 cm long. Each shoot consisted of 1 blade of each length plus a fourth blade ra ...
... 5 mm wide, the same width as Thalassia testudinum blades. Each clump contained 1000 cm2 of blade surface area, comprised of 100 'blades' grouped into 25 'shoots': 35 blades 8 cm long, 30 blades 10 cm long and 35 blades 12 cm long. Each shoot consisted of 1 blade of each length plus a fourth blade ra ...
Johnson and Hartson 2009 host variation
... 3. Field results underscored the broad variation in malformations and infection between host species; while nearly 60% (n = 618) of emerging American toads exhibited severe limb deformities such as bony triangles, skin webbings and missing limbs, fewer than 4% (n = 251) of Eastern gray treefrogs fro ...
... 3. Field results underscored the broad variation in malformations and infection between host species; while nearly 60% (n = 618) of emerging American toads exhibited severe limb deformities such as bony triangles, skin webbings and missing limbs, fewer than 4% (n = 251) of Eastern gray treefrogs fro ...
Density-dependent facilitation cascades determine
... algal biomass from nearby rocky shores into the mangrove forest. Although most of the algae that washed into the mangrove forests were ephemeral, in contrast, free-living, reproductively viable populations of H. banksii were found year-round. H. banksii formed patches up to tens of meters long and o ...
... algal biomass from nearby rocky shores into the mangrove forest. Although most of the algae that washed into the mangrove forests were ephemeral, in contrast, free-living, reproductively viable populations of H. banksii were found year-round. H. banksii formed patches up to tens of meters long and o ...
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.