6-3 Biodiversity
... Today, in the U.S., endangered species are protected from hunting. The Convention on International Trade in Endangered Species, CITES, bans international trade in products derived from endangered species. Slide 9 of 35 Copyright Pearson Prentice Hall ...
... Today, in the U.S., endangered species are protected from hunting. The Convention on International Trade in Endangered Species, CITES, bans international trade in products derived from endangered species. Slide 9 of 35 Copyright Pearson Prentice Hall ...
Pollinators in Natural Areas
... negative impacts but can provide positive benefits to floral resources in some rangeland settings, especially where shorter flowering plants are suppressed by taller grasses and buildup of thatch. Like many of the management tools discussed in this briefing, there is an ecological cost to introducin ...
... negative impacts but can provide positive benefits to floral resources in some rangeland settings, especially where shorter flowering plants are suppressed by taller grasses and buildup of thatch. Like many of the management tools discussed in this briefing, there is an ecological cost to introducin ...
2000 CRC Press LLC - Site de utilizadores
... gene pool of particular species, reduction of grounds maintenance costs and environmental impacts, and creation of representative local ecosystems. Often more than one goal is possible for any given restoration project. While all the reasons listed above are significant, goals may be quite limited. ...
... gene pool of particular species, reduction of grounds maintenance costs and environmental impacts, and creation of representative local ecosystems. Often more than one goal is possible for any given restoration project. While all the reasons listed above are significant, goals may be quite limited. ...
Distribution and host relations of species of the genus Cimex on bats
... often shared with Rhinolophus spp. A similar number of roosts with similar microclimates was negative. There is a single published record of C. pipistrelli from M. emarginatus (Usinger 1966), while the records of C. lectularius are at least three (Usinger & Beaucournu 1967, Protić & Paunović 2006). ...
... often shared with Rhinolophus spp. A similar number of roosts with similar microclimates was negative. There is a single published record of C. pipistrelli from M. emarginatus (Usinger 1966), while the records of C. lectularius are at least three (Usinger & Beaucournu 1967, Protić & Paunović 2006). ...
Army ants in four forests
... Walking trails is effective for detecting army ant activity for several reasons (Rettenmeyer 1963; Kaspari 1996; O’Donnell and Kumar 2006). First, surface army ant raids are often roughly linear, radiating out from the bivouac to maximum distances of 100 m or more (Rettenmeyer 1963; Schneirla 1971; ...
... Walking trails is effective for detecting army ant activity for several reasons (Rettenmeyer 1963; Kaspari 1996; O’Donnell and Kumar 2006). First, surface army ant raids are often roughly linear, radiating out from the bivouac to maximum distances of 100 m or more (Rettenmeyer 1963; Schneirla 1971; ...
Night-time conductance in C3 and C4 species: do plants lose water
... magnitude of night-time g and E would be greater in wetter habitats than in water-limited habitats. Contrary to this initial prediction, habitat differences seemed to have little effect on the occurrence or magnitude of night-time water loss (Fig. 1A, B). The occurrence of night-time g and E in all ...
... magnitude of night-time g and E would be greater in wetter habitats than in water-limited habitats. Contrary to this initial prediction, habitat differences seemed to have little effect on the occurrence or magnitude of night-time water loss (Fig. 1A, B). The occurrence of night-time g and E in all ...
do plants lose water at night?
... magnitude of night-time g and E would be greater in wetter habitats than in water-limited habitats. Contrary to this initial prediction, habitat differences seemed to have little effect on the occurrence or magnitude of night-time water loss (Fig. 1A, B). The occurrence of night-time g and E in all ...
... magnitude of night-time g and E would be greater in wetter habitats than in water-limited habitats. Contrary to this initial prediction, habitat differences seemed to have little effect on the occurrence or magnitude of night-time water loss (Fig. 1A, B). The occurrence of night-time g and E in all ...
Summer feeding relationships of the co
... and other aquatic preys increased in larger specimens. A similar pattern was observed in G. lozanoi (Table 2), the consumption of Chironomidae decreased whilst predation on Trichoptera larvae, Crustacea and terrestrial preys increased as fish grew larger. Both species showed a higher number of prey ...
... and other aquatic preys increased in larger specimens. A similar pattern was observed in G. lozanoi (Table 2), the consumption of Chironomidae decreased whilst predation on Trichoptera larvae, Crustacea and terrestrial preys increased as fish grew larger. Both species showed a higher number of prey ...
Aquatic Organisms f Introduced into North America
... aquatic animals of which the public is unaware, continue to arrive in North America, and some, through accidental or deliberate releases, become established and are competitively dangerous to native species or ecological communities. Although various federal and state regulations have been enacted i ...
... aquatic animals of which the public is unaware, continue to arrive in North America, and some, through accidental or deliberate releases, become established and are competitively dangerous to native species or ecological communities. Although various federal and state regulations have been enacted i ...
AMPHIPODS AS FOOD SOURCES FOR HIGHER TROPHIC
... a lower amount of amphipods (from 0.1 to 1.7 Mt.yr-1) as their relative biomass is far weaker than that of fish. The total amphipod mass ingested per year is thus estimated at roughly 60 Mt. These values must however be cautiously regarded as they are tainted with biases and approximations for sever ...
... a lower amount of amphipods (from 0.1 to 1.7 Mt.yr-1) as their relative biomass is far weaker than that of fish. The total amphipod mass ingested per year is thus estimated at roughly 60 Mt. These values must however be cautiously regarded as they are tainted with biases and approximations for sever ...
Temperate rocky subtidal reef community reveals human impacts
... reported terrestrial, estuarine and freshwater food webs (see also Riede et al. 2010), and that given the short average path between species, the impact of disturbances could rapidly propagate throughout the entire ecosystem. This result is in good agreement with the recent historical compilation of ...
... reported terrestrial, estuarine and freshwater food webs (see also Riede et al. 2010), and that given the short average path between species, the impact of disturbances could rapidly propagate throughout the entire ecosystem. This result is in good agreement with the recent historical compilation of ...
Notes on the ecology of Tradescantia fluminensis and a biological
... cerinthoides Kunth is shortly creeping, and rather succulent and velvety or hairy. There has only been one unpublished record of seed production in New Zealand (Graeme Bourdôt, AgResearch), and so reproduction appears to be almost exclusively vegetative. Stem fragments as small as 10 mm can successf ...
... cerinthoides Kunth is shortly creeping, and rather succulent and velvety or hairy. There has only been one unpublished record of seed production in New Zealand (Graeme Bourdôt, AgResearch), and so reproduction appears to be almost exclusively vegetative. Stem fragments as small as 10 mm can successf ...
Chapter 50: An Introduction to Ecology and the Biosphere
... how both contribute to species diversity. 13) Distinguish between a food chain and a food web. 14) Summarize two hypotheses that explain why food chains are relatively short. 15) Explain how dominant and keystone species exert strong control on community structure. Describe an example of each. 16) D ...
... how both contribute to species diversity. 13) Distinguish between a food chain and a food web. 14) Summarize two hypotheses that explain why food chains are relatively short. 15) Explain how dominant and keystone species exert strong control on community structure. Describe an example of each. 16) D ...
Behavioral Diversity (Ethodiversity): A Neglected Level in the Study
... The concept of biodiversity embraces a multifaceted and hierarchical analysis of the complexity of life, with implications in many areas of science, philosophy, ethics, politics, and even religion. Three levels are included in the commonly accepted definitions: genetical, species, and ecosystem dive ...
... The concept of biodiversity embraces a multifaceted and hierarchical analysis of the complexity of life, with implications in many areas of science, philosophy, ethics, politics, and even religion. Three levels are included in the commonly accepted definitions: genetical, species, and ecosystem dive ...
Evaluating the role of ecological isolation in maintaining the species
... woodland site was dominated by Quercus robur with little herbaceous cover beneath, and was not tilled prior to planting. Within each site, the populations were planted at least 20 m apart (populations of the two species are frequently found in closer proximity in natural situations). The woodland an ...
... woodland site was dominated by Quercus robur with little herbaceous cover beneath, and was not tilled prior to planting. Within each site, the populations were planted at least 20 m apart (populations of the two species are frequently found in closer proximity in natural situations). The woodland an ...
Evidence for a Mu¨ llerian mimetic radiation in Asian pitvipers
... Evidence for a Müllerian mimetic radiation in Asian pitvipers K. L. Sanders, A. Malhotra* and R. S. Thorpe School of Biological Sciences, University of Wales, Bangor, Gwynedd LL57 2UW, UK Müllerian mimicry, in which toxic species gain mutual protection from shared warning signals, is poorly unders ...
... Evidence for a Müllerian mimetic radiation in Asian pitvipers K. L. Sanders, A. Malhotra* and R. S. Thorpe School of Biological Sciences, University of Wales, Bangor, Gwynedd LL57 2UW, UK Müllerian mimicry, in which toxic species gain mutual protection from shared warning signals, is poorly unders ...
British Columbia Grasslands Monitoring Vegetation Change
... Information may be reproduced without permission subject to the fair dealing provision and the exceptions set out in the Canada Copyright Act, R.S., c. C-20, s. 1. The source of the work must be fully acknowledged. Information may not be redistributed or stored for the purpose of serving through any ...
... Information may be reproduced without permission subject to the fair dealing provision and the exceptions set out in the Canada Copyright Act, R.S., c. C-20, s. 1. The source of the work must be fully acknowledged. Information may not be redistributed or stored for the purpose of serving through any ...
Ch 54 Notes - Dublin City Schools
... • Some feeding adaptations of predators are claws, teeth, fangs, stingers, and poison ...
... • Some feeding adaptations of predators are claws, teeth, fangs, stingers, and poison ...
Get cached
... always pink and it can be mottled with graygreen or maroon-purple color as well (Mah 2007). It is one of the largest asteroids, growing to 320 mm in diameter (Hyman 1955). (2) Pisaster giganteus is bluish gray and its dorsal spines are blunt, clubbed, each surrounded by a ring of blue flesh and arou ...
... always pink and it can be mottled with graygreen or maroon-purple color as well (Mah 2007). It is one of the largest asteroids, growing to 320 mm in diameter (Hyman 1955). (2) Pisaster giganteus is bluish gray and its dorsal spines are blunt, clubbed, each surrounded by a ring of blue flesh and arou ...
Emerson 2002
... featured in the evolution of this group and this is perhaps best exemplified by detailed examination of the species of Gran Canaria, the only island clearly identified as having a monophyletic assemblage of Nesotes species. The five Nesotes species of Gran Canaria are descended from a single Gran Ca ...
... featured in the evolution of this group and this is perhaps best exemplified by detailed examination of the species of Gran Canaria, the only island clearly identified as having a monophyletic assemblage of Nesotes species. The five Nesotes species of Gran Canaria are descended from a single Gran Ca ...
Mountain streams 5
... In the past, man exploited mountains The Acquacheta in the northern Appennines for some of his activities; nowadays he views them as “picture postcard” landscapes, sufficiently far from large towns to be considered uncontaminated and rustically serene. In fact, this oleographic picture is far remove ...
... In the past, man exploited mountains The Acquacheta in the northern Appennines for some of his activities; nowadays he views them as “picture postcard” landscapes, sufficiently far from large towns to be considered uncontaminated and rustically serene. In fact, this oleographic picture is far remove ...
frog fact sheet - World Animal Foundation
... jumping performance. Due to their permeable skin, frogs are often semi-aquatic or inhabit humid areas, but move easily on land. They typically lay their eggs in puddles, ponds or lakes, and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly ...
... jumping performance. Due to their permeable skin, frogs are often semi-aquatic or inhabit humid areas, but move easily on land. They typically lay their eggs in puddles, ponds or lakes, and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly ...
Downloaded
... colonial animals. Their life histories range from ephemeral to perennial. Aspects of their lives such as growth, reproduction, partial mortality due to predation or fouling, and the behavior of both autozooids and polymorphs can be studied at the level of the colony, as well as that of the individua ...
... colonial animals. Their life histories range from ephemeral to perennial. Aspects of their lives such as growth, reproduction, partial mortality due to predation or fouling, and the behavior of both autozooids and polymorphs can be studied at the level of the colony, as well as that of the individua ...
Biological Collections From The Marine Ecosystem
... examine whether scientists collected fish representative of Aleut fishermen. Presence refers to an organism being present at a station, it does not imply the number of organisms that are present (for some indication of numbers, see Appendix 10.A). Collections were made from 29 June through 19 July 2 ...
... examine whether scientists collected fish representative of Aleut fishermen. Presence refers to an organism being present at a station, it does not imply the number of organisms that are present (for some indication of numbers, see Appendix 10.A). Collections were made from 29 June through 19 July 2 ...
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.