1 Are invasive ants better plant-defense mutualists? A comparison of
... Benefits arising from facultative mutualisms between ants and plants vary with the identity of the ant partner. Invasive and native ants are both attracted to plants that offer extrafloral nectar, but few studies have compared their abilities to displace herbivores and benefit plants. Yellow crazy a ...
... Benefits arising from facultative mutualisms between ants and plants vary with the identity of the ant partner. Invasive and native ants are both attracted to plants that offer extrafloral nectar, but few studies have compared their abilities to displace herbivores and benefit plants. Yellow crazy a ...
preliminary survey of the relationship between the feeding habit and
... Hole. Specimens were then transferred to 5-L plastic containers and stored in an icebox when the air was warmer than the water. On return to the laboratory, they were kept in a constant temperature bath for about a day to become acclimatized to the temperature nearest to that of the water where and ...
... Hole. Specimens were then transferred to 5-L plastic containers and stored in an icebox when the air was warmer than the water. On return to the laboratory, they were kept in a constant temperature bath for about a day to become acclimatized to the temperature nearest to that of the water where and ...
Relationships between body size and abundance in ecology
... issues with analyzing these relationships. Size–density relationships Regression method A variety of regression methods have been used to fit SDRs (e.g. ordinary least squares and reduced major axis regression). These approaches typically produce different results [29,67] and plausible arguments hav ...
... issues with analyzing these relationships. Size–density relationships Regression method A variety of regression methods have been used to fit SDRs (e.g. ordinary least squares and reduced major axis regression). These approaches typically produce different results [29,67] and plausible arguments hav ...
Evolution and Ecology of Species Range Limits
... Range boundary disequilibria with environmental niches is often attributed to dispersal limitation, where populations cannot expand as quickly as the environment becomes favorable (e.g., recolonizing formerly glaciated areas; Fang & Lechowicz 2006). Species differ markedly in their extent of climati ...
... Range boundary disequilibria with environmental niches is often attributed to dispersal limitation, where populations cannot expand as quickly as the environment becomes favorable (e.g., recolonizing formerly glaciated areas; Fang & Lechowicz 2006). Species differ markedly in their extent of climati ...
Granivory in a Desert Ecosystem: Experimental Evidence for Indirect Facilitation... Rodents Author(s): D. W. Davidson, R. S. Inouye, J. H. Brown
... ing to indirect mutualismbetweentwo groupsof consumers Marana (Pima County), Arizona. Study plots on the and their competingresources(modifiedfrom Levine 1976). bajada (alluvial outwash plain) at Marana were situated Populationenhancementor dampingof particularspecies is at - 330 m elevation in typi ...
... ing to indirect mutualismbetweentwo groupsof consumers Marana (Pima County), Arizona. Study plots on the and their competingresources(modifiedfrom Levine 1976). bajada (alluvial outwash plain) at Marana were situated Populationenhancementor dampingof particularspecies is at - 330 m elevation in typi ...
Table of Contents - New England Conference Company
... High efficiency woody weed control in Western Sydney The NCC Firesticks Project: applying Aboriginal knowledge, science and integrated fire, weed and pest species management to restore and maintain biodiversity, habitat connectivity and landscape resilience Climate-ready revegetation: a guide for na ...
... High efficiency woody weed control in Western Sydney The NCC Firesticks Project: applying Aboriginal knowledge, science and integrated fire, weed and pest species management to restore and maintain biodiversity, habitat connectivity and landscape resilience Climate-ready revegetation: a guide for na ...
Invasive alien species in Switzerland
... The situation regarding IAS in Switzerland is similar to that in other Central European countries, in particular Austria, which is also a land-locked country containing part of the Alps. This report lists about 800 alien species and characterises 107 IAS in Fact Sheets: five mammals, four birds, one ...
... The situation regarding IAS in Switzerland is similar to that in other Central European countries, in particular Austria, which is also a land-locked country containing part of the Alps. This report lists about 800 alien species and characterises 107 IAS in Fact Sheets: five mammals, four birds, one ...
Zoology 100/101 Lecture Study Guide
... 45. Describe meiosis and its role in nature. 46. Describe sexual reproduction and the role of mitosis and meiosis in sexual reproduction. 47. Why does sexual reproduction seem to be important to the survival of species? 48. If a 20n cell (one with 20 sets of chromosomes) underwent mitosis, what woul ...
... 45. Describe meiosis and its role in nature. 46. Describe sexual reproduction and the role of mitosis and meiosis in sexual reproduction. 47. Why does sexual reproduction seem to be important to the survival of species? 48. If a 20n cell (one with 20 sets of chromosomes) underwent mitosis, what woul ...
Mine area - Conservation Significant fauna and habitat
... to south-eastern Queensland. A 75% reduction in habitat range occurred during the 20th century (Braithwaite and Griffiths 1994), so that the species is now restricted to the Pilbara and northern Kimberley in Western Australia, and to a few discrete populations across the Northern Territory and easte ...
... to south-eastern Queensland. A 75% reduction in habitat range occurred during the 20th century (Braithwaite and Griffiths 1994), so that the species is now restricted to the Pilbara and northern Kimberley in Western Australia, and to a few discrete populations across the Northern Territory and easte ...
The role of earthworms for assessment of sustainability and as
... 6. Agricultural activities and earthworms Intensification of cropping, annual tillage and other operations such as fertilization, irrigation and pesticide use consistently affect populations of earthworms and other invertebrates as well. A long history of rural landscape transformation has resulted ...
... 6. Agricultural activities and earthworms Intensification of cropping, annual tillage and other operations such as fertilization, irrigation and pesticide use consistently affect populations of earthworms and other invertebrates as well. A long history of rural landscape transformation has resulted ...
The Role of Infectious Diseases in Marine Communities M
... dwarf the direct cost of parasitism (Careau et al. 2010). The details of how a parasite affects its host are important when trying to estimate the effects of the parasite on the host population. A parasite that slows growth or eliminates reproduction can lead to a different dynamic than one that inc ...
... dwarf the direct cost of parasitism (Careau et al. 2010). The details of how a parasite affects its host are important when trying to estimate the effects of the parasite on the host population. A parasite that slows growth or eliminates reproduction can lead to a different dynamic than one that inc ...
Keystone Interactions: Salmon and Bear in Riparian Forests of Alaska
... ^Current address: Department of Environmental ...
... ^Current address: Department of Environmental ...
THE ECOLOGY, EVOLUTION, AND DIVERSIFICATION OF THE
... Climatic and edaphic heterogeneity are generally considered to be the primary drivers of global vegetation patterns, and the high biodiversity of the California Floristic Province is largely explained by the exceptional levels of climatic and geomorphological heterogeneity throughout the region (e. ...
... Climatic and edaphic heterogeneity are generally considered to be the primary drivers of global vegetation patterns, and the high biodiversity of the California Floristic Province is largely explained by the exceptional levels of climatic and geomorphological heterogeneity throughout the region (e. ...
Seed limitation and the coexistence of pioneer tree species
... can promote species coexistence by greatly slowing competitive exclusion (Tilman 1994, Hurtt & Pacala 1995). This is because when plants are seed limited recruitment sites are frequently won not by the strongest competitor in the community (Kitajima and Poorter, chapter xxx), but by the best competi ...
... can promote species coexistence by greatly slowing competitive exclusion (Tilman 1994, Hurtt & Pacala 1995). This is because when plants are seed limited recruitment sites are frequently won not by the strongest competitor in the community (Kitajima and Poorter, chapter xxx), but by the best competi ...
Taphonomic decoding of the paleobiological information locked in a
... TABLE 1. Abundance of taxa of large mammals ( $5 kg) identified in the Venta Micena assemblage (data from Arribas and Palmqvist 1998). MNI 5 minimum number of individuals (juveniles/adults), based on counts of deciduous and permanent teeth. NISP 5 number of identifiable specimens (teeth/bones). C 5 ...
... TABLE 1. Abundance of taxa of large mammals ( $5 kg) identified in the Venta Micena assemblage (data from Arribas and Palmqvist 1998). MNI 5 minimum number of individuals (juveniles/adults), based on counts of deciduous and permanent teeth. NISP 5 number of identifiable specimens (teeth/bones). C 5 ...
The Biology of Limpets, part 2, Branch
... wide range of latitudes in Britain, although the start of maturation occurred earlier in colder localities. Spawning is normally remarkably synchronized, and Ballantine (1965) showed that 80%, of the population may spawn over a two-day period. While all patellids seem to have marked annual cycles s ...
... wide range of latitudes in Britain, although the start of maturation occurred earlier in colder localities. Spawning is normally remarkably synchronized, and Ballantine (1965) showed that 80%, of the population may spawn over a two-day period. While all patellids seem to have marked annual cycles s ...
Limiting Similarity Revisited
... Szabo, P. and Meszena, G. (2005) Limiting Similarity Revisited. IIASA Interim Report. IIASA, Laxenburg, Austria, IR-05050 Copyright © 2005 by the author(s). http://pure.iiasa.ac.at/7788/ Interim Reports on work of the International Institute for Applied Systems Analysis receive only limited review. ...
... Szabo, P. and Meszena, G. (2005) Limiting Similarity Revisited. IIASA Interim Report. IIASA, Laxenburg, Austria, IR-05050 Copyright © 2005 by the author(s). http://pure.iiasa.ac.at/7788/ Interim Reports on work of the International Institute for Applied Systems Analysis receive only limited review. ...
Overview of temporary ponds in the Mediterranean region : Threats
... habitat. Because of the rich aquatic vegetation in temporary ponds, they also provide an advantage to egg laying. The hydroperiod is a key gradient for the offspring (Grillas et al., 2004a; Jakob et al., 2003; Ryan and Winne, 2001; Snodgrass et al., 2000). If the pond dries up too early or when ther ...
... habitat. Because of the rich aquatic vegetation in temporary ponds, they also provide an advantage to egg laying. The hydroperiod is a key gradient for the offspring (Grillas et al., 2004a; Jakob et al., 2003; Ryan and Winne, 2001; Snodgrass et al., 2000). If the pond dries up too early or when ther ...
Species interactions - Lakeland Regional High School
... Parasites exploit hosts • Parasitism = a relationship in which one organism (parasite) depends on another (host) for nourishment or other benefit while harming the host • Some species live within the host - Disease pathogens, tapeworms, insects (parasitoids) • Others live on, are free-living, or ha ...
... Parasites exploit hosts • Parasitism = a relationship in which one organism (parasite) depends on another (host) for nourishment or other benefit while harming the host • Some species live within the host - Disease pathogens, tapeworms, insects (parasitoids) • Others live on, are free-living, or ha ...
NEST SITE SELECTION AND INFLUENCE OF WOODPECKERS
... 2). Secondary cavity users (SCUs) are those species that generally cannot create cavities of their own, but rely upon the cavities created by primary excavators for nesting, denning, roosting, and/or resting. Lines connect species that use resources provided by the species below and are associated w ...
... 2). Secondary cavity users (SCUs) are those species that generally cannot create cavities of their own, but rely upon the cavities created by primary excavators for nesting, denning, roosting, and/or resting. Lines connect species that use resources provided by the species below and are associated w ...
biological resource analysis
... This biological resources analysis also provides mitigation measures for “potentially significant” and “significant” impacts that could occur to biological resources. Whenever possible, upon implementation, the prescribed mitigation measures would reduce impacts to levels considered less than signif ...
... This biological resources analysis also provides mitigation measures for “potentially significant” and “significant” impacts that could occur to biological resources. Whenever possible, upon implementation, the prescribed mitigation measures would reduce impacts to levels considered less than signif ...
Heterogeneity
... than grazing, whilst the corollary was true at a regional scale. • Overall, untreated local plots had the most heterogeneity, but regional responses varied to a large degree, depending on season of burning (spring burning then grazing increased heterogeneity, autumn burns reduced it) • This variatio ...
... than grazing, whilst the corollary was true at a regional scale. • Overall, untreated local plots had the most heterogeneity, but regional responses varied to a large degree, depending on season of burning (spring burning then grazing increased heterogeneity, autumn burns reduced it) • This variatio ...
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.