Pollination Biology
... welfare today. Most human food comes from cereal grains (Poaceae) and legumes (Fabaceae) all of which result from pollination. Nearly all edible fruits would not exist without pollination. ...
... welfare today. Most human food comes from cereal grains (Poaceae) and legumes (Fabaceae) all of which result from pollination. Nearly all edible fruits would not exist without pollination. ...
The Bottom Line: Impacts of Alien Plant Invasions in Protected Areas
... helix (English ivy) mainly inhibited the recruitment of herbaceous species. The smaller plants were suppressed, and even established forest trees were eventually killed through shading (Thomas 1980). Alien vine species may have advantages due to altered phenologies (e.g. evergreen vs. deciduous) and ...
... helix (English ivy) mainly inhibited the recruitment of herbaceous species. The smaller plants were suppressed, and even established forest trees were eventually killed through shading (Thomas 1980). Alien vine species may have advantages due to altered phenologies (e.g. evergreen vs. deciduous) and ...
Leaf-Cutting Ant Herbivory in Successional and Agricultural
... counted for 5 min. The mean area and mass of each ant's burden were estimated by collecting >50 leaf fragments from each active trail during each obser? vation. The combined area of these fragments was measured to within 1 mm2 with an area meter; the composite sample was then dried at 70?C for 24 h ...
... counted for 5 min. The mean area and mass of each ant's burden were estimated by collecting >50 leaf fragments from each active trail during each obser? vation. The combined area of these fragments was measured to within 1 mm2 with an area meter; the composite sample was then dried at 70?C for 24 h ...
Phylogenetic limiting similarity and competitive exclusion
... hypothesis, is based on the assumption that close relatives are likely to possess similar niches, an idea synthesised in the recent concept of phylogenetic niche conservatism (Wiens & Graham 2005; Losos 2008; Wiens et al. 2010), and that greater niche similarity between species translates into more ...
... hypothesis, is based on the assumption that close relatives are likely to possess similar niches, an idea synthesised in the recent concept of phylogenetic niche conservatism (Wiens & Graham 2005; Losos 2008; Wiens et al. 2010), and that greater niche similarity between species translates into more ...
Chapter 7 Pack Hunting in Miocene Borophagine Dogs: Evidence
... and two new approaches to estimating the typical prey size of extinct carnivores. The craniodental morphology of the Borophaginae is compared with that of the living Caninae and Hyaeninae (hyaenids exclusive of Proteles cristata, the aardwolf) based on measurements that reflect relative tooth size, ...
... and two new approaches to estimating the typical prey size of extinct carnivores. The craniodental morphology of the Borophaginae is compared with that of the living Caninae and Hyaeninae (hyaenids exclusive of Proteles cristata, the aardwolf) based on measurements that reflect relative tooth size, ...
The magnitude of fungal diversity: the 1n5 million species estimate
... with 60 % discovered in tropical countries vs 40 % in others, with India now generating most species (ca 913$), followed by the USA (ca 819), Australia (ca 813), China (ca 795) and France (ca 565) (Hawksworth & Kirk, unpubl.). The growth in the overall total due to the description of new species is ...
... with 60 % discovered in tropical countries vs 40 % in others, with India now generating most species (ca 913$), followed by the USA (ca 819), Australia (ca 813), China (ca 795) and France (ca 565) (Hawksworth & Kirk, unpubl.). The growth in the overall total due to the description of new species is ...
Improving the ecological understanding of species complexes: the
... (60.7%) was a result of mechanistic damage, likely to have occurred during capture and consumption of prey and/or decay of larvae in the gut of the predator. Bayesian estimates of the species structure of the larvae ingested by Hypseleotris spp. (Table 2) showed similar posterior probabilities for ...
... (60.7%) was a result of mechanistic damage, likely to have occurred during capture and consumption of prey and/or decay of larvae in the gut of the predator. Bayesian estimates of the species structure of the larvae ingested by Hypseleotris spp. (Table 2) showed similar posterior probabilities for ...
The Endangered Species Act and the Oil and Gas Industry
... Candidate Conservation Agreements with Assurances (CCAAs) – More expansive than traditional CCAs, because they relate to nonFederal landowners, who can receive assurances. – Assures that if such landowners implement certain conservation measures, they will not be subject to additional restrictions i ...
... Candidate Conservation Agreements with Assurances (CCAAs) – More expansive than traditional CCAs, because they relate to nonFederal landowners, who can receive assurances. – Assures that if such landowners implement certain conservation measures, they will not be subject to additional restrictions i ...
Biodiversity_ Species Interactions_ and Population Control
... Interactions between Predator and Prey • Intense natural selection pressures between predator and prey populations • Coevolution – Interact over a long period of time – Changes in the gene pool of one species can cause changes in the gene pool of the other ...
... Interactions between Predator and Prey • Intense natural selection pressures between predator and prey populations • Coevolution – Interact over a long period of time – Changes in the gene pool of one species can cause changes in the gene pool of the other ...
Feeding preferences for juvenile and adult algae depend on algal
... replacing them with 1 mm mesh fiberglass screening to allow water flow through the containers. Expenments with L, porrecta were performed in 40 mm diameter plastic Petri dishes that had been modified by cutting 25 mm diameter holes in both parts of the dish and covering them with 1 mm mesh fiberglas ...
... replacing them with 1 mm mesh fiberglass screening to allow water flow through the containers. Expenments with L, porrecta were performed in 40 mm diameter plastic Petri dishes that had been modified by cutting 25 mm diameter holes in both parts of the dish and covering them with 1 mm mesh fiberglas ...
For-75: An Ecosystem Approach to natural Resources Management
... Central and South America. Many people recognize these birds as warblers, swifts, hummingbirds, tanagers, shorebirds, and thrushes. The other group of migratory songbirds are the short-distance migrants that include bluebirds, robins, hawks, and other species. Complex Causes for Decline Why are the ...
... Central and South America. Many people recognize these birds as warblers, swifts, hummingbirds, tanagers, shorebirds, and thrushes. The other group of migratory songbirds are the short-distance migrants that include bluebirds, robins, hawks, and other species. Complex Causes for Decline Why are the ...
Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $100 Q $100 Q
... butterfly population by cutting down trees so they cannot live in them for survival during the winter months. ...
... butterfly population by cutting down trees so they cannot live in them for survival during the winter months. ...
Forestry and Agricultural Management Can Enhance Biodiversity
... thrusts that influence biodiversity. The first is preservation and enhancement of the genetic base of native tree species through the Forest Tree Improvement Center. This center works with native species such as loblolly pine, bur oak, hackberry and others to improve seedling planting survival, grow ...
... thrusts that influence biodiversity. The first is preservation and enhancement of the genetic base of native tree species through the Forest Tree Improvement Center. This center works with native species such as loblolly pine, bur oak, hackberry and others to improve seedling planting survival, grow ...
does local competition increase the coexistence of species in
... FIG. 1. (a, b) Examples of interaction webs and equivalent competitive-outcomes matrices for model communities with 10 species (numbered 1–10). In the interaction webs, thin lines connect species pairs for which the lower-numbered species outcompetes the higher-numbered species, while thick lines (p ...
... FIG. 1. (a, b) Examples of interaction webs and equivalent competitive-outcomes matrices for model communities with 10 species (numbered 1–10). In the interaction webs, thin lines connect species pairs for which the lower-numbered species outcompetes the higher-numbered species, while thick lines (p ...
jxb.oxfordjournals.org
... combination¼18 plants), and replicated on six consecutive days. The protocol for each freezing event followed Osborne et al. (2008). Briefly, the root system of each plant was prevented from freezing by wrapping each pot in polythene, and immersing it in a water bath held at 15 C. The plants were p ...
... combination¼18 plants), and replicated on six consecutive days. The protocol for each freezing event followed Osborne et al. (2008). Briefly, the root system of each plant was prevented from freezing by wrapping each pot in polythene, and immersing it in a water bath held at 15 C. The plants were p ...
USER`S GUIDE TO BIODIVERSITY (SPECIES) NATIONAL
... entire flyway population fewer than 40,000 birds. 2. Population in moderate decline and population fewer than 2,500 breeding pairs and not marginal to a larger non-European population, or European wintering and entire flyway population fewer than 10,000 birds. 3. Population neither in moderate or la ...
... entire flyway population fewer than 40,000 birds. 2. Population in moderate decline and population fewer than 2,500 breeding pairs and not marginal to a larger non-European population, or European wintering and entire flyway population fewer than 10,000 birds. 3. Population neither in moderate or la ...
Lowland subtropical rainforest
... fastest growing populations in Australia. It is not surprising therefore that this places a lot of pressure on our natural resources, including these fragile forests. ‘Connectivity’ is important as it allows species to move more easily across the landscape, whilst also recreating a healthy, more res ...
... fastest growing populations in Australia. It is not surprising therefore that this places a lot of pressure on our natural resources, including these fragile forests. ‘Connectivity’ is important as it allows species to move more easily across the landscape, whilst also recreating a healthy, more res ...
pdf em inglês
... C < 25, accidental. The differences between dry and rainy season fish abundance were analyzed using the Wilcoxon Test (Siegel, 1975). Morphometric and limnological data of the reservoirs were obtained from Guarino et al. (2005). ...
... C < 25, accidental. The differences between dry and rainy season fish abundance were analyzed using the Wilcoxon Test (Siegel, 1975). Morphometric and limnological data of the reservoirs were obtained from Guarino et al. (2005). ...
16: 228-235
... neopauciflora, among other taxa (Valiente-Banuet et al., 2000). Most of the species that have been recorded in this community (48 out of 56) appear to depend upon M. luisana plants for recruitment. These include species of several functional groups – shrubs, succulents plants such as Agave and cacti, ...
... neopauciflora, among other taxa (Valiente-Banuet et al., 2000). Most of the species that have been recorded in this community (48 out of 56) appear to depend upon M. luisana plants for recruitment. These include species of several functional groups – shrubs, succulents plants such as Agave and cacti, ...
Gundabooka National Park Report compr
... within the park has been produced on the basis of this research (Figure 1). Care should be taken interpreting this map as seasonal use of the landscape may vary and areas not used in November may be important at other times of the year. ...
... within the park has been produced on the basis of this research (Figure 1). Care should be taken interpreting this map as seasonal use of the landscape may vary and areas not used in November may be important at other times of the year. ...
DRAFT BA Y-DELTA OVERSIGHT
... Water Resources comments that introduced species and other factors result in a constantly changing Estuary and one where few management measures can be successfully used to control these species. He states that the scientific community does not have a good understanding of the interactions between n ...
... Water Resources comments that introduced species and other factors result in a constantly changing Estuary and one where few management measures can be successfully used to control these species. He states that the scientific community does not have a good understanding of the interactions between n ...
Flowering Patterns in a Seasonal Tropical Lowland Forest in
... indicated that the vast majority of species showed intraspecific synchronization, and annual production was the most common pattern, followed by episodic frequency. The annual patterns were common in tree species, while episodic patterns were common in lianas. Simple and multiple regression analyses ...
... indicated that the vast majority of species showed intraspecific synchronization, and annual production was the most common pattern, followed by episodic frequency. The annual patterns were common in tree species, while episodic patterns were common in lianas. Simple and multiple regression analyses ...
Standard 7: Select terrestrial, freshwater and marine conservation
... prone. Many countries have published analyses of conservation priorities for various taxonomic groups. ...
... prone. Many countries have published analyses of conservation priorities for various taxonomic groups. ...
Mimicry - eweb.furman.edu
... Crypsis: - crypsis is the ability of an organism to avoid observation or detection by other organisms. It may be either a predation strategy or an antipredator adaptation, and methods include camouflage, nocturnality, subterranean lifestyle, transparency,[2] and mimicry (Wikipedia). ...
... Crypsis: - crypsis is the ability of an organism to avoid observation or detection by other organisms. It may be either a predation strategy or an antipredator adaptation, and methods include camouflage, nocturnality, subterranean lifestyle, transparency,[2] and mimicry (Wikipedia). ...
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.