The Natural History of Endemic Families and Subfamilies of Birds of
... In a general way, the different species that compose the seven groups have a tendency to be found either in spiny forests, evergreen forests, or deciduous forests. For example, among the ground-rollers, there is one species limited to the dry deciduous forests of the extreme southwest (Uratelornis ...
... In a general way, the different species that compose the seven groups have a tendency to be found either in spiny forests, evergreen forests, or deciduous forests. For example, among the ground-rollers, there is one species limited to the dry deciduous forests of the extreme southwest (Uratelornis ...
Number of crop species and number of plant families
... essential determinants of biodiversity, as the strength of the agricultural community relies largely on these two measures. According to Gliessman, the agroecologist “knows that a certain level of complexity is desirable. By paying attention to the ecology of the crop community, it is possible to cr ...
... essential determinants of biodiversity, as the strength of the agricultural community relies largely on these two measures. According to Gliessman, the agroecologist “knows that a certain level of complexity is desirable. By paying attention to the ecology of the crop community, it is possible to cr ...
Experimental Zoogeography of Islands
... of our islands concerns intermittent breeding by strong-flying insects combined with continuous foraging by adults. Females of the moth A u t o wzeris i o (Saturniidae) fly frequently onto small mangrove islands and occasionally deposit eggs. The life cycle from egg to adult of Autovneris on Rhizoph ...
... of our islands concerns intermittent breeding by strong-flying insects combined with continuous foraging by adults. Females of the moth A u t o wzeris i o (Saturniidae) fly frequently onto small mangrove islands and occasionally deposit eggs. The life cycle from egg to adult of Autovneris on Rhizoph ...
Species Dynamics During Early Secondary Forest Succession
... with similar geomorphology and land-use history. Plots were selected on abandoned cornfields (“milpas”) in areas with undulating hills, between 115 and 300 m asl., with a complex acidic soil (pH 4–5), derived from sedimentary rocks (sandy and clay) that have low total nitrogen (0.4 kg/m2 ) and phosp ...
... with similar geomorphology and land-use history. Plots were selected on abandoned cornfields (“milpas”) in areas with undulating hills, between 115 and 300 m asl., with a complex acidic soil (pH 4–5), derived from sedimentary rocks (sandy and clay) that have low total nitrogen (0.4 kg/m2 ) and phosp ...
frogs – conservation
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
... Australia has a fascinating and spectacular variety of frogs, over 210 of the world’s ~5,000 species. The majority of Australian frogs are unique due to Australia’s long isolation. The origin of Australia’s frog fauna can be traced back many millions of years when Australia formed part of a large la ...
Good-bye poverty, hello biodiversity
... climate—in which a group of organisms live. Exclusion: being left out. Extreme poverty: poverty level in which a person lives on less than $1.25 US per day. Gene: an important structure found in all cells that contains codes that make each individual unique. Genetic diversity: the total variety of g ...
... climate—in which a group of organisms live. Exclusion: being left out. Extreme poverty: poverty level in which a person lives on less than $1.25 US per day. Gene: an important structure found in all cells that contains codes that make each individual unique. Genetic diversity: the total variety of g ...
Of the five species of non-human primates in South
... Africa have shown that baboons are important seed dispersers. One of the reasons why baboons have become “problem animals” in some areas is precisely because of human disruption of natural ecosystems. The effects of such ecosystem disruption are only beginning to be understood in South Africa, with ...
... Africa have shown that baboons are important seed dispersers. One of the reasons why baboons have become “problem animals” in some areas is precisely because of human disruption of natural ecosystems. The effects of such ecosystem disruption are only beginning to be understood in South Africa, with ...
This talk will be about patterns of species diversity
... diversity within a set of communities or samples (α diversity), you could find the total diversity represented by all samples by multiplying the average diversity by the number of communities or samples. γ = α x β. In this way, he recognized the number of communities as a measure of β diversity. How ...
... diversity within a set of communities or samples (α diversity), you could find the total diversity represented by all samples by multiplying the average diversity by the number of communities or samples. γ = α x β. In this way, he recognized the number of communities as a measure of β diversity. How ...
The Impacts of African Elephant - ScholarWorks@GVSU
... to the recovery of the African elephant population after poaching and the ivory trade critically threatened the species’ survival. Species listed in CITES Appendix I are those that are threatened with extinction and so the trade involving these animals is greatly restricted and closely monitored. Th ...
... to the recovery of the African elephant population after poaching and the ivory trade critically threatened the species’ survival. Species listed in CITES Appendix I are those that are threatened with extinction and so the trade involving these animals is greatly restricted and closely monitored. Th ...
Beavers play a crucial role in managing wetland and river
... process to capture nutrient-rich silts leaching through tributaries from the surrounding agricultural landscapes into their strategically important Roadford Reservoir. Unfortunately, although supported by their board, this venture failed as a result of opposition from local protest groups. Beaver we ...
... process to capture nutrient-rich silts leaching through tributaries from the surrounding agricultural landscapes into their strategically important Roadford Reservoir. Unfortunately, although supported by their board, this venture failed as a result of opposition from local protest groups. Beaver we ...
Invasive species and biological invasions
... years, only 9 of these proposals could get funded, probably leaving many high quality consortia disappointed. Nevertheless, the call itself has triggered significant multi-disciplinary collaborations, and has strengthened networking between academics and stakeholders with an interest in biological i ...
... years, only 9 of these proposals could get funded, probably leaving many high quality consortia disappointed. Nevertheless, the call itself has triggered significant multi-disciplinary collaborations, and has strengthened networking between academics and stakeholders with an interest in biological i ...
Brooklyn - Australian Wildlife Conservancy
... funds for the acquisition and long term management of the property. The Federal Government has made a generous contribution to enable its acquisition. However, we now need your help to raise additional funds for the management and protection of Brooklyn and its wildlife. Australia is rapidly losing ...
... funds for the acquisition and long term management of the property. The Federal Government has made a generous contribution to enable its acquisition. However, we now need your help to raise additional funds for the management and protection of Brooklyn and its wildlife. Australia is rapidly losing ...
Reproductive Isolation among Acropora Species
... morphological and genetic data suggest that A. prolifera is a hybrid of A. cervicornis and A. palmata (van Oppen et al. 2000, Vollmer and Palumbi 2002), and all 3 species are believed to be capable of interbreeding (reviewed in Willis et al. 2006). Although hybridization has received a great deal of ...
... morphological and genetic data suggest that A. prolifera is a hybrid of A. cervicornis and A. palmata (van Oppen et al. 2000, Vollmer and Palumbi 2002), and all 3 species are believed to be capable of interbreeding (reviewed in Willis et al. 2006). Although hybridization has received a great deal of ...
Effects of Competition, Predation, and Dispersal on Species
... The hypothesis that local interactions set upper limits on local diversity is based on an inhibitional model of community assembly in which local processes act to exclude species. Resource competition is one form of local interaction that is expected to limit local diversity (Tilman and Pacala 1993) ...
... The hypothesis that local interactions set upper limits on local diversity is based on an inhibitional model of community assembly in which local processes act to exclude species. Resource competition is one form of local interaction that is expected to limit local diversity (Tilman and Pacala 1993) ...
Gray Wolf Factsheet - Endangered Species Coalition
... of wolves to Yellowstone National Park has forced once-sedentary elk herds to move and biologists have documented resulting ecosystem changes and enormous benefits for other species, from amphibians to fish, songbirds, moose, pronghorn, and lynx. Moreover, browsing elk no longer suppress aspen, cott ...
... of wolves to Yellowstone National Park has forced once-sedentary elk herds to move and biologists have documented resulting ecosystem changes and enormous benefits for other species, from amphibians to fish, songbirds, moose, pronghorn, and lynx. Moreover, browsing elk no longer suppress aspen, cott ...
04_chapter 1
... Conservation needs were felt for the first time in the country in 1965. After a detailed study that was conducted countrywide, the Government of India came out with the Wildlife Protection Act, 1972 with an aim to conserve the depleting flora and fauna of India. Since then'this act has been amended ...
... Conservation needs were felt for the first time in the country in 1965. After a detailed study that was conducted countrywide, the Government of India came out with the Wildlife Protection Act, 1972 with an aim to conserve the depleting flora and fauna of India. Since then'this act has been amended ...
True Value of Estuarine and Coastal Nurseries for Fish
... of the world (Sheaves 2012; Potter et al. 2014) that is likely to result in different mixes of factors being important in different regions. Understanding this complexity and the relative importance of different factors is the key to meaningful nursery identification and valuation, and is the raw ma ...
... of the world (Sheaves 2012; Potter et al. 2014) that is likely to result in different mixes of factors being important in different regions. Understanding this complexity and the relative importance of different factors is the key to meaningful nursery identification and valuation, and is the raw ma ...
March - Chicago Herpetological Society
... but without the excitement and wonder associated with that first catch. I have also developed a soft heart for these seemingly unattractive creatures. Many years passed since that unforgettable day, and mudpuppies for a time were more or less forgotten. Mudpuppies are large salamanders that live out ...
... but without the excitement and wonder associated with that first catch. I have also developed a soft heart for these seemingly unattractive creatures. Many years passed since that unforgettable day, and mudpuppies for a time were more or less forgotten. Mudpuppies are large salamanders that live out ...
International Single Species Action Plan for the
... breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have separated migration systems. In the European part of the migration system, subspecies can mix. The species increased during the 20th century throughout the Western Palearctic but while the island ...
... breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have separated migration systems. In the European part of the migration system, subspecies can mix. The species increased during the 20th century throughout the Western Palearctic but while the island ...
Linking Biodiversity and Ecosystem Services: Current
... forage production—the final service most relevant to society in this context—have not been reported in most grassland experiments. Dozens of experiments in temperate grasslands offer considerable evidence that aboveground plant biomass production increases with plant species richness (Cardinale et ...
... forage production—the final service most relevant to society in this context—have not been reported in most grassland experiments. Dozens of experiments in temperate grasslands offer considerable evidence that aboveground plant biomass production increases with plant species richness (Cardinale et ...
Phylogenetic diversity promotes ecosystem stability
... 1991), then the simplest models of evolutionary change predict that the more distantly related two species are, the greater likelihood that they differ ecologically. Of course, individual traits may show idiosyncratic patterns and rates of evolution, but overall ecological differentiation, across a ...
... 1991), then the simplest models of evolutionary change predict that the more distantly related two species are, the greater likelihood that they differ ecologically. Of course, individual traits may show idiosyncratic patterns and rates of evolution, but overall ecological differentiation, across a ...
Environmental adaptation to lagoon systems
... boundary (5-8 %cl separates fresh water and marine fauna s and Khlebovich (1969) later expanded this concept by incorporating much more data. Pronounccd physiotogical changes occur within this critieal salinity boundary region, including distortion of cellular electrochemical properties, tissue albu ...
... boundary (5-8 %cl separates fresh water and marine fauna s and Khlebovich (1969) later expanded this concept by incorporating much more data. Pronounccd physiotogical changes occur within this critieal salinity boundary region, including distortion of cellular electrochemical properties, tissue albu ...
Western Burrowing Owl
... documented within the past 10 years; of these, 5 are of high precision and may be accurately located within the inventory area. Approximately 1 of these high precision records is located within developed areas. The remainder of the records occur within nonnative annual grassland habitats, or adjacen ...
... documented within the past 10 years; of these, 5 are of high precision and may be accurately located within the inventory area. Approximately 1 of these high precision records is located within developed areas. The remainder of the records occur within nonnative annual grassland habitats, or adjacen ...
does variable coloration in juvenile marine crabs reduce
... range of fish predators in the Gulf of Maine. It is unknown if the developmental crypsis we describe may have persisted later into a crab’s ontogeny when larger predators were more common. We do not know why color polymorphism is lost as crabs mature. It is possible that it is a ‘‘costly’’ condition ...
... range of fish predators in the Gulf of Maine. It is unknown if the developmental crypsis we describe may have persisted later into a crab’s ontogeny when larger predators were more common. We do not know why color polymorphism is lost as crabs mature. It is possible that it is a ‘‘costly’’ condition ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.