Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.
Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forest, is a subtropical and tropical forest habitat type defined by the World Wide Fund for Nature.
A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. The concept was introduced in 1969 by the zoologist Robert T. Paine. Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. Some keystone species, such as the wolf and lion, are also apex predators.
Kelp forests are underwater areas with a high density of kelp, which covers a large part of the world's coastlines. Smaller areas of anchored kelp are called kelp beds. They are recognized as one of the most productive and dynamic ecosystems on Earth. Although algal kelp forest combined with coral reefs only cover 0.1% of Earth's total surface, they account for 0.9% of global primary productivity. Kelp forests occur worldwide throughout temperate and polar coastal oceans. In 2007, kelp forests were also discovered in tropical waters near Ecuador.
The brown-mantled tamarin, also known as Spix's saddle-back tamarin, is a species of saddle-back tamarin. This New World monkey is found in the Southern American countries of Bolivia, Brazil and Peru. This omnivorous member of the Callitrichidae family is usually found in smaller groups ranging between 4 and 15 individuals. This species communicates vocally and largely rely their olfactory system. The brown-mantled tamarin is considered as a species of Least Concern by the International Union for Conservation of Nature, despite a decreasing population and being threatened by poaching, habitat loss and capture for the illegal pet trade.
Bruce M. Beehler is an ornithologist and research associate of the Bird Division of the Smithsonian Institution's National Museum of Natural History. Prior to this appointment, Beehler worked for Conservation International, the Wildlife Conservation Society, Counterpart International, and the National Fish and Wildlife Foundation.
The Guam kingfisher, called sihek in Chamorro, is a species of kingfisher from the occupied United States Territory of Guam. It is restricted to a captive breeding program following its extinction in the wild due primarily to predation by the introduced brown tree snake.
A Field Guide to the Birds of Hawaii and the Tropical Pacific is a 1987 book by Harold Douglas Pratt, Jr., Phillip L. Bruner and Delwyn G. Berrett. It is published by Princeton University Press and is produced as both hardback (ISBN 978-0-691-08402-2) and softback (ISBN 978-0-691-02399-1) editions. The book is primarily a field guide to birds found in the Hawaiian Islands, Micronesia, Fiji and tropical Polynesia, including some distribution and status data. It was the first identification work to cover the birds of the whole of this region.
Cocha Cashu Biological Station is a tropical biological research station located at 11° 54'S and 71° 22'W in Manú National Park, Peru. It was established in 1969-70, predating the founding of its containing national park. Though only 10 km2 in area, the site has provided valuable research. The station is situated on the shore of an oxbow lake, from which it takes its name. "Qucha" is the Quechua word for lake. "Cashu" is derived from the English word "cashew" and refers to the shape of the lake.
The mesopredator release hypothesis is an ecological theory used to describe the interrelated population dynamics between apex predators and mesopredators within an ecosystem, such that a collapsing population of the former results in dramatically increased populations of the latter. This hypothesis describes the phenomenon of trophic cascade in specific terrestrial communities.
The bicolored hawk is a species of bird of prey in the family Accipitridae. It is found in forest, woodland, second growth, plantations, and wooded savanna in southeastern Mexico, Central America, and northern and central South America. Though generally uncommon, it is the most common species of Astur in most of its range, but it does not occur at altitudes above 2,700 metres (8,900 ft) such as the highest parts of the Andes.
The buff-crested bustard is a medium-sized bird of East Africa; Somalia, Ethiopia, Kenya belonging to the family Otididae. The populations are stable and the species is of least concern.
The green oropendola is a species of bird in the family Icteridae. It is found in wooded habitats in the Amazon basin and Guianas of South America, and is generally common. Uniquely among the oropendolas, the green oropendola has a pale bill with an orange tip. Male oropendola weigh around 400 grams, while females are in the 200 gram range. This is a common species and the International Union for Conservation of Nature has rated its status as being of "least concern".
Tropical ecology is the study of the relationships between the biotic and abiotic components of the tropics, or the area of the Earth that lies between the Tropic of Cancer and the Tropic of Capricorn. The tropical climate experiences hot, humid weather and rainfall year-round. While many might associate the region solely with the rainforests, the tropics are home to a wide variety of ecosystems that boast a great wealth of biodiversity, from exotic animal species to seldom-found flora. Tropical ecology began with the work of early English naturalists and eventually saw the establishment of research stations throughout the tropics devoted to exploring and documenting these exotic landscapes. The burgeoning ecological study of the tropics has led to increased conservation education and programs devoted to the climate. Tropical ecology provides a wealth of natural resources to humans, this includes contributing to the carbon cycle, with the ability to store 50% of carbon emissions as well as turnover 40% of global oxygen. However, despite the natural services provided by tropical ecology, deforestation is a threat of tropical rainforests. Any plant of interest can be exploited for commercial reasons and extraction of these specific plant species can be at a rapid rate without time for healthy regeneration. Most of the global plant biodiversity is hosted in tropical areas, however studies in this area is mostly covered by scientist from Northern countries. Inclusion of scientist from countries where rainforest is present is heavily encouraged because it extends global knowledge and research which advances scientific contributions, benefiting tropical ecology.
In ecology, a priority effect refers to the impact that a particular species can have on community development as a result of its prior arrival at a site. There are two basic types of priority effects: inhibitory and facilitative. An inhibitory priority effect occurs when a species that arrives first at a site negatively affects a species that arrives later by reducing the availability of space or resources. In contrast, a facilitative priority effect occurs when a species that arrives first at a site alters abiotic or biotic conditions in ways that positively affect a species that arrives later. Inhibitory priority effects have been documented more frequently than facilitative priority effects. Studies indicate that both abiotic and biotic factors can affect the strength of priority effects.. Priority effects are a central and pervasive element of ecological community development that have significant implications for natural systems and ecological restoration efforts.
Stuart Leonard Pimm is the Doris Duke Chair of Conservation Ecology at Duke University. His early career was as a theoretical ecologist but he now specialises in scientific research of biodiversity and conservation biology.
John Weaver Fitzpatrick is an American ornithologist primarily known for his research work on the South American avifauna and for the conservation of the Florida scrub jay. He is currently the Louis Agassiz Fuertes Director of the Cornell Lab of Ornithology in Ithaca, New York.
The Hynes Award for New Investigators is awarded by the Society for Freshwater Science and recognizes an excellent academic research paper in the freshwater sciences by a scientist less than five years after their terminal graduate degree. Recipients of the award have gone on to become leading senior researchers, serving as science advisors to various governments and states, and held leadership positions in national and international scientific societies.
David M. Post is a research scientist and academic administrator. He is currently a professor of Ecology and Evolutionary Biology at Yale University and the Vice President ., Dean of Faculty, and Visiting Wong Ngit Liong Professor at Yale-NUS College, the first liberal arts college in Singapore. Post is an aquatic ecologist who studies food webs, evolution, and stable isotopes in lakes and rivers in Connecticut and Kenya.
Thomas W. Sherry is an American ecologist and academic. He serves as a professor emeritus in the Department of Ecology and Evolutionary Biology at Tulane University.
