Tree species richness promotes productivity in temperate forests
... every patch. Other resources are affecting species performance, such as nitrogen availability that varies across sites, but this resource itself is a constant at the site level in the model. To calculate weatherdependent factors, mean monthly temperatures and monthly precipitation sums are simulated ...
... every patch. Other resources are affecting species performance, such as nitrogen availability that varies across sites, but this resource itself is a constant at the site level in the model. To calculate weatherdependent factors, mean monthly temperatures and monthly precipitation sums are simulated ...
rtf - Florida Entomological Society
... Insects from food processing/handling facilities on the University of Florida campus were collected and assayed for the presence of Salmonella spp. bacteria. Insects were collected individually with aseptic techniques to prevent cross contamination. To detect the presence or absence of Salmonella sp ...
... Insects from food processing/handling facilities on the University of Florida campus were collected and assayed for the presence of Salmonella spp. bacteria. Insects were collected individually with aseptic techniques to prevent cross contamination. To detect the presence or absence of Salmonella sp ...
UPDATING WATERBIRD POPULATION ESTIMATES WITHIN THE
... studies was based shows great differences in terms of methodology, periodicity and census strength in each locality, so the specific evaluations, particularly about the population trends, should be treated with the necessary precautions (Brouwer et al., 2003). Furthermore, during hard winters the ab ...
... studies was based shows great differences in terms of methodology, periodicity and census strength in each locality, so the specific evaluations, particularly about the population trends, should be treated with the necessary precautions (Brouwer et al., 2003). Furthermore, during hard winters the ab ...
Butterfly Populations - North American Butterfly Association
... conditions. Butterflies usually have an inactive period called diapause in their annual cycle during cold winters or tropical dry seasons. But butterflies do not normally undergo prolonged dormancy lasting more than part of a year. This is unlike many plants that may be dormant for many years, exis ...
... conditions. Butterflies usually have an inactive period called diapause in their annual cycle during cold winters or tropical dry seasons. But butterflies do not normally undergo prolonged dormancy lasting more than part of a year. This is unlike many plants that may be dormant for many years, exis ...
Ant community structure on a small Pacific island: only one native
... baits during the course of 1 day in each habitat. Baits are an exceptionally rich food source useful to establish the daily rhythms of species (Cros et al. 1997). Eighteen pairs of baits were laid regularly over each study site. Baits were small plastic spoons with two different large food rewards ( ...
... baits during the course of 1 day in each habitat. Baits are an exceptionally rich food source useful to establish the daily rhythms of species (Cros et al. 1997). Eighteen pairs of baits were laid regularly over each study site. Baits were small plastic spoons with two different large food rewards ( ...
06_3eTIF
... make controlling them difficult? Answer: Invasive species possess high fecundity, large dispersal ability, the tendency toward general habitat preference, large phenotypic plasticity, and an absence of native biotic controls such as competitors, predators, and pathogens. Possessing these traits, eli ...
... make controlling them difficult? Answer: Invasive species possess high fecundity, large dispersal ability, the tendency toward general habitat preference, large phenotypic plasticity, and an absence of native biotic controls such as competitors, predators, and pathogens. Possessing these traits, eli ...
Ants, Bees, Wasps and the Majority of Insect Parasitoids.
... SUMMARY Hymenoptera is one of the most diverse orders of insects consisting of 90 families and more than 115,000 described species spread across all continents except Antarctica. It is morphologically well defined, and considered beyond a doubt to be a natural group. Although there is no common name ...
... SUMMARY Hymenoptera is one of the most diverse orders of insects consisting of 90 families and more than 115,000 described species spread across all continents except Antarctica. It is morphologically well defined, and considered beyond a doubt to be a natural group. Although there is no common name ...
Clupea harengus
... complex feeding and spawning migrations. Spawning occurs from spring to late autumn (see systematics below). The eggs are deposited on the substrate. The species is a facultative zooplanktivorous-filter feeder, i.e. it can switch to filter-feeding if the food density and particle size is appropriate ...
... complex feeding and spawning migrations. Spawning occurs from spring to late autumn (see systematics below). The eggs are deposited on the substrate. The species is a facultative zooplanktivorous-filter feeder, i.e. it can switch to filter-feeding if the food density and particle size is appropriate ...
The Ecological Niche in Aquatic Ecosystems
... of respiration in water that is in contact with sediment, for example, can remove all oxygen from water in a matter of a few days. Some aquatic environments are much more subject to oxygen depletion than others. Mountain streams of high gradient with low amounts of respiration are on one end of the ...
... of respiration in water that is in contact with sediment, for example, can remove all oxygen from water in a matter of a few days. Some aquatic environments are much more subject to oxygen depletion than others. Mountain streams of high gradient with low amounts of respiration are on one end of the ...
Evolution of weaponry in female bovids
... habitats are more exposed, visible from longer distances, and would be more likely to benefit from the presence of horns for defence against predators. While analysis I tested shoulder height and habitat openness separately, we sought out a composite measure of conspicuousness that simultaneously ac ...
... habitats are more exposed, visible from longer distances, and would be more likely to benefit from the presence of horns for defence against predators. While analysis I tested shoulder height and habitat openness separately, we sought out a composite measure of conspicuousness that simultaneously ac ...
All these species depend on mangroves for their survival.
... Mangrove forests are made up of mangrove trees which are salt tolerant, evergreen plants. Mangroves provide protected nurseries for fishes, crustaceans and shellfish; food for marine life and humans; and refuge for many species of birds. This makes up an unique ecosystem where the land and the sea m ...
... Mangrove forests are made up of mangrove trees which are salt tolerant, evergreen plants. Mangroves provide protected nurseries for fishes, crustaceans and shellfish; food for marine life and humans; and refuge for many species of birds. This makes up an unique ecosystem where the land and the sea m ...
APPENDIX C: The Conservation and Reservation status of
... the King River (Jarman & Kantvilas 1995b). Data from these studies were entered into an existing database used for the Atlas of Tasmanian Bryophytes (Moscal & Kirkpatrick 1995) and have been used in the assessment of conservation/reservation status. Conservation and Reservation Conservation Status o ...
... the King River (Jarman & Kantvilas 1995b). Data from these studies were entered into an existing database used for the Atlas of Tasmanian Bryophytes (Moscal & Kirkpatrick 1995) and have been used in the assessment of conservation/reservation status. Conservation and Reservation Conservation Status o ...
Depth segregation phenomenon and the macrofaunal diversity associated to
... equal representation of all species. 3. Results and discussion: 3.1. Length frequency distribution: The length frequency distribution and mean length variation against depth for Callista chione and Acanthocardia tuberculata populations at the two sampling areas are shown in Figure 1. In this study b ...
... equal representation of all species. 3. Results and discussion: 3.1. Length frequency distribution: The length frequency distribution and mean length variation against depth for Callista chione and Acanthocardia tuberculata populations at the two sampling areas are shown in Figure 1. In this study b ...
Final Bordered brown lacewing report Mike Smith
... Lacewings are largely active at night, and are known to be attracted to light traps, so a number of these were set up across the park. In addition these were used to increase moth records for the park. It is known that the number of moth species have declined drastically over the last 40 years (Fox ...
... Lacewings are largely active at night, and are known to be attracted to light traps, so a number of these were set up across the park. In addition these were used to increase moth records for the park. It is known that the number of moth species have declined drastically over the last 40 years (Fox ...
Secondary succession in overgrazed Pannonian sandy
... Thomas & Dale 1976), but only a few studies evaluate the role of microtopography on annual-perennial dynamics (e.g., Pemadasa et al. 1974). Sandy grasslands, like many other types of grassland in the Pannonian region have undergone major compositional changes during the last few decades due to chang ...
... Thomas & Dale 1976), but only a few studies evaluate the role of microtopography on annual-perennial dynamics (e.g., Pemadasa et al. 1974). Sandy grasslands, like many other types of grassland in the Pannonian region have undergone major compositional changes during the last few decades due to chang ...
ORIGIN, BIOGEOGRAPHICAL MIGRATIONS AND
... There are proponents who consider the plant species present in America when Europeans arrived as the natives that have persisted from time immemorial free from human disturbances. However, recent research indicates there are woodland areas that have developed subsequent to anthropological disturbanc ...
... There are proponents who consider the plant species present in America when Europeans arrived as the natives that have persisted from time immemorial free from human disturbances. However, recent research indicates there are woodland areas that have developed subsequent to anthropological disturbanc ...
Counting the books while the library burns: why conservation
... local, regional, or global extinction due to the absence of a preplanned intervention program (WebTable 1). This is not meant as a criticism of ecological or conservation monitoring per se, since these are critical for understanding the ecology of a species, determining its threat status, and evalua ...
... local, regional, or global extinction due to the absence of a preplanned intervention program (WebTable 1). This is not meant as a criticism of ecological or conservation monitoring per se, since these are critical for understanding the ecology of a species, determining its threat status, and evalua ...
The community context of species` borders: ecological and
... Case, T. J., Holt, R. D., McPeek, M. A. and Keitt, T. H. 2005. The community context of species’ borders: ecological and evolutionary perspectives. / Oikos 108: 28 /46. Species distributional limits may coincide with hard dispersal barriers or physiological thresholds along environmental gradients ...
... Case, T. J., Holt, R. D., McPeek, M. A. and Keitt, T. H. 2005. The community context of species’ borders: ecological and evolutionary perspectives. / Oikos 108: 28 /46. Species distributional limits may coincide with hard dispersal barriers or physiological thresholds along environmental gradients ...
Wildlife Booklet.indd
... invertebrate life, which in turn provides for many wildlife species. Some subcatchments in the drier foothills have creeklines which can be ephemeral (dry out). Bogs (or springs) occur on the plateaux of the main ranges, throughout the Highlands and Strathbogie areas (see separate text box below). S ...
... invertebrate life, which in turn provides for many wildlife species. Some subcatchments in the drier foothills have creeklines which can be ephemeral (dry out). Bogs (or springs) occur on the plateaux of the main ranges, throughout the Highlands and Strathbogie areas (see separate text box below). S ...
Conservation status of Spotted Tree Frog in New South Wales
... only one adult male was found. In addition, breeding activity had not occurred at the site for the two years prior (Gillespie 1999). As this population showed no signs of a recovery, the lone male was removed and placed in a captive breeding program (with females from the Victorian population) (Gill ...
... only one adult male was found. In addition, breeding activity had not occurred at the site for the two years prior (Gillespie 1999). As this population showed no signs of a recovery, the lone male was removed and placed in a captive breeding program (with females from the Victorian population) (Gill ...
Effects of River Impoundment on Ecosystem Services
... impoundment effects on the energetic costs of fisheries production (embodied energy) and commercial market value of the artisanal fishery of the Paraná River, Brazil, before and after formation of Itaipu Reservoir. High-value migratory species that dominated the fishery before the impoundment was b ...
... impoundment effects on the energetic costs of fisheries production (embodied energy) and commercial market value of the artisanal fishery of the Paraná River, Brazil, before and after formation of Itaipu Reservoir. High-value migratory species that dominated the fishery before the impoundment was b ...
Ch. 5 Review PP
... - Their populations - Their communities • Species = a population or group of populations whose members share characteristics and can freely breed with one another and produce fertile offspring • Population = a group of individuals of a species that live in the same area Copyright © 2008 Pearson Educ ...
... - Their populations - Their communities • Species = a population or group of populations whose members share characteristics and can freely breed with one another and produce fertile offspring • Population = a group of individuals of a species that live in the same area Copyright © 2008 Pearson Educ ...
Coexistence and relative abundance in annual plant assemblages
... largest-seeded, competitive species are the least abundant. This relationship is more accurately described by a constraint line, where small-seeded species can be either common or sparse, while large-seeded species are consistently rare (Guo et al. 2000). Leishman and Murray (2001) have recently sho ...
... largest-seeded, competitive species are the least abundant. This relationship is more accurately described by a constraint line, where small-seeded species can be either common or sparse, while large-seeded species are consistently rare (Guo et al. 2000). Leishman and Murray (2001) have recently sho ...
Development of a subtidal epifaunal community at the island of
... the first spatfall of 1977 was completely lacking. The largest individuals of the second spatfalI reached 7.4 mm in diameter in May 1978, i.e. less than the first settlers had already reached 9 months before (at an age of only two months). The growth rates estimated during this study in E. rnodestus ...
... the first spatfall of 1977 was completely lacking. The largest individuals of the second spatfalI reached 7.4 mm in diameter in May 1978, i.e. less than the first settlers had already reached 9 months before (at an age of only two months). The growth rates estimated during this study in E. rnodestus ...
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.