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Showing 50 Information results for conservation biology
...This camouflage helps them hide in water basins (Smithsonian's National Zoo and Conservation Biology Institute, 2022).Sexual Dimorphism: Males tend to be smaller and have nuptial pads on the inner side of their forelimbs to assist in grip during copulation. Males also have smaller vocal sacs - or in some species such as T. kwangsiense, have no vocal sacs at all. Eggs hatch anywhere...
...balios hinges on conservation programs and habitat protection measures. This endangered member of the Atelopus genus has also been ravaged by a widespread chytrid fungus, Batrachochytrium dendrobatidis, which leads to chytridiomycosis. Research into its disease resistance, ecological role, and reproductive biology remains crucial for preventing extinction. Note that this species is highly toxic due to the defensive chemicals secreted by the toad’s skin...
Conolophus subcristatus Galapagos Land Iguana
...These and other observations of Galapagos wildlife contributed in part to Darwin's theory of evolution.Today the Land Iguanas are an important part of the unique Galapagos fauna, and studies of their biology, as well as conservation programs, are continuing. No adverse effects. The Galapagos Land Iguana is listed as a threatened species by the World Conservation Union (Baillie and Groombridge 1996). Threats...
Cercartetus concinnus western pygmy possum
...Western pygmy possums prefer to travel using clumps of twigs or leaf litter as cover, indicating that diverse ground cover should be a focus of conservation efforts. Western pygmy possums are small, nocturnal marsupials. Adults average 80 mm in body length, with an 86 mm long tail to aid them when moving through foliage. The average weight of an adult is only 13 grams...
Prototheria egg-laying mammals
...Long-nosed echidnas are currently listed as endangered by the International Union for the Conservation of Nature (IUCN) redlist (www.redlist.org). Habitat destruction and heavy hunting pressure have severely limited populations of this species. In the past, platypuses were declining rapidly due to their overexploitation in the fur trade, but recent conservation efforts have helped populations rebound considerably.
Notropis nubilus Ozark minnow
...Recommended conservation measures for this species include protecting and restoring its habitat, conducting further research on its status and biology, and controlling pollution, erosion and agricultural runoff. Fossils of Ozark minnows have been found in Meade County in southwestern Kansas that date back to the late Illinoian glacial stage. Also, fossil bone fragments have been found in the Ouachita Highlands. Studies and collections show...
Peltophryne lemur Ridge-headed Toad
...significantly decrease its numbers. Breeding in zoos has been done, with tadpoles reintroduced into the natural habitat. Conservation also involves education, and habitat, restoration and protection, particularly breeding ponds. Also important is control of predatory and competing species, assessing potential areas for introduction, and researching basic biology of the toad. The United States Fish and Wildlife Service (USFWS) created a recovery plan in 1992...
Milyeringa brooksi Brooks' cavefish
...Not currently listed in any conservation list. However, as noted by (2010), "The endangered status of Milyeringa veritas under the Western Australia Conservation Act should be expanded to include the new species. It is vital that these rare and poorly-studied species be managed and protected."
Allocebus trichotis hairy-eared dwarf lemur
...This action and continuing research are vital to study the conservation status and basic biology of this species in the wild. Most lemurs on the island of Madagascar are endangered. Rapid deforestation and the exponential growth rate of humans gives these species little room. Hairy-eared dwarf lemurs are at particular risk and are classified as endangered by CITES. Populations of A. trichotis are...
Cynoscion regalis Bastard trout; Chickwick; Common weakfish; Grey trout; Saltwater trout
...The weakfish reproductive biology is not well understood, despite studies on its spawning seasons. Weakfish may be a multiple spawner, which means that it has several mating seasons a year, or weakfish may have an extended spawning season (Lowerre-Barrieri, 1995).There is some evidence that the male weakfish croaking sounds may be used in attracting a mate and playing a role in spawning...
Macaca nigra Celebes crested macaque
...Little is known about the reproductive biology of Celebes crested macaques in the wild (Engelhardt and Farajallah 2008). They breed year-round, although periods of high ovarian activity among adult females occur from August to June, and birthing peaks between January and May (Engelhardt and Farajallah 2008).Fertility of males and females overlaps (Bernstein et al. 1982). Females have a menstrual cycle of approximately...
Hippocampus zosterae little seahorse; pygmy seahorse
...The known lifespan for Hippocampus is on average 1 to 5 years, depending on the size and species (Biology of Seahorses, 2003). Hippocampus zosterae, being a smaller species, is expected to live on average one year in the wild and in captivity (if given proper care) (Lourie et al., 2004). The maximum reported lifespan is 1 year for dwarf seahorses (Jordan and Gilbert, 1882...
Hippocampus kuda Common seahorse
...Implementing effective conservation methods has been hampered by confusion over H. kuda taxonomy, which has been driven by the difficulty in morphologically distinguishing them from their relatives, their ability to camouflage, current lack of descriptions, and unestablished, independent naming designations (Lourie et al., 1999). Taxonomic definitions must be established first before researchers can confidently understand the biology, ecology, and relative abundance of spotted seahorses...
Nycticorax nycticorax black-crowned night heron; black-crowned night-heron
...They inhabit a variety of wetland habitats such as swamps, streams, rivers, marshes, mud flats and the edges of lakes that have become overgrown with rushes and cattails. (Davis, 1993; http://www.biology.ualberta.ca/uamz.hp/heron.html) The night heron has a stocky body, with a comparatively short neck and legs. The length averages 58-72 cm, with the females averaging slightly...
Phocoenoides dalli Dall's porpoise
...Little is known about the reproductive biology of Dall's porpoises. Two calving periods have been reported for portions of the eastern North Pacific, one in winter, from February through March, and the other in summer, from July through August. Some segregation of animals seems to occur with juveniles found closer to shore and larger adults well offshore. In offshore areas, females in late...
Orectolobus floridus Floral banded wobbegong
...Federal Lists, CITES, and Michigan Conservation List.Due to their limited distributions along the southwestern coast of Australia, floral banded wobbegong sharks face potential threats from habitat degradation and localized fishing activities. Additionally, the lack of basic information on natural history poses a significant threat, as limited knowledge about their population dynamics, reproductive biology, and ecological roles makes it difficult to assess and manage...
Oryzorictes hova Hova rice tenrec; molelike rice tenrec
...As with other aspects of the biology of this genus, almost nothing is known about the parental investment of Oryzorictes. However, because they are mammals, we can infer that females provide a great deal of parental care to their offspring. Females nurse their young, and provide them with protection, grooming, and other care until they are weaned. It is not known whether there is...
Eulemur cinereiceps gray-headed lemur
...Little is known about the reproductive biology of gray-headed lemurs. However, it is likely similar to other brown lemurs. Thus, the mating system of gray-headed lemurs may either be monogamous or polygynous. Availability of studies for general reproductive behavior of gray-headed lemurs is quite limited. However, closely relative species, such as other brown lemurs, have matings occurring between June and July...
Ceratophora tennentii Rhinoceros Agama
...Little else is known about the reproductive biology of this species. Females provision the eggs (yolk), but probably deposit and then abandon their eggs (as with most agamid lizards) and there is likely no parental care of hatched young. No data could be found on lifespan and longevity of the Leaf-nosed lizard. Tennent's Leaf-nosed Lizards are slow-moving and arboreal (Johnston...
Myotis auriculus southwestern myotis
...Beyond that, we must speculate on the reproductive biology of M. auriculus. Like other long-eared bats in the genus Myotis, it is likely that this species mates in the autumn when the bats enter their hibernaculum. In their close relatives, ovulation and fertilization do not occur until the following spring, and it is likely that M. auriculus is similar. Parental investment for this...
Zaglossus bruijni western long-beaked echidna; New Guinean echidna
...Their presence in the ecosystem supports biodiversity, which can benefit conservation-related economic activities. Additionally, scientific research on monotremes has contributed to advances in evolutionary biology and reproductive science. Their rarity and slow reproductive rate have also led to illegal wildlife trade, with reported cases of trafficking. This illegal trade poses conservation and ethical concerns rather than widespread economic burdens. Western long-beaked echidnas...
...While there is limited information on their basic biology and stock abundance on the west coast of North America, there is evidence showing that these organisms are overfished. There are no known adverse effects of Warty sea cucumbers on humans. Although there are indications that this species is over-exploited, it has no special conservation status at the present time. Although they are invertebrates...
...biology of sand dollar gametes and the chemical pathways involved in fertilization and cell division; these areas have been investigated to discover fundamental processes involved in cell differentiation, embryology and early stages of deuterostome development. This has greatly contributed to advances in medical research. This species has no negative economic effects on humans. This species is abundant and there are no current conservation efforts...
Ameiva ameiva Giant Ameiva, Amazon Racerunner
...This species is similiar to Ameiva ameiva in size and the environments in which they live, so their reproductive biology may be similar. Ameiva plei males tend to guard females during sexual encounters. However, males that did not guard females did not mate. Males in this species that were larger tended to mate more as they won over the most females. Giant ameivas reproduce...
...Through these roles, Lampropeltis exemplify the complex ways in which wildlife can influence human economic and ecological landscapes, emphasizing the importance of their conservation and sustainable management. There are no known adverse effects of Lampropeltis species on humans Lampropeltis species have varied conservation statuses, ranging from Least Concern to more vulnerable categories due to habitat loss, road mortality, and the pet trade. For instance...
Diceros bicornis black rhinoceros
...Black rhinos have the potential to help create awareness for conservation efforts. Additionally,they provide educational value both through biology and through art. Black rhino horns are also very valuable for their use in various products, such as traditional Chinese medicine and traditional Yemen dagger handles. The popularity of their horns is a major reason why the species as a whole is in trouble...
Notomys fuscus dusky hopping mouse
...Females have four mammae. (Grizmick 1990, Honaki 1982, Nowak 1991) Little is known of the breeding biology of this species in the wild other than that it is an opportunistic breeder. In captivity, its breeding pattern is polyestrous, with no evidence of seasonality, thus it breeds throughout the year. The gestation period is 38-41 days; a postpartum estrus is not common in N...
Amphispiza belli sage sparrow
...The USDI Fish and Wildlife Service maintains that sage sparrows are not a species of conservation concern in California, but the USDI Bureau of Land Management states that they are a sensitive species. The USDA Forest Service also identifies sage sparrows as a sensitive species. In addition, the IUCN Red List recognizes sage sparrows as a priority avian species that needs to be conserved...
Homo sapiens human
...One of the most notable aspects of human biology and evolution is the extensive use of tools. Early human populations constructed sets of specialized tools, such as chisels and knife blades, from stones, bone, antler, and ivory. Human technological innovation is one of the most definitive human characteristics. Related to this innovation is the complex development of human art and symbolism, including written languages...
Cyprinodon diabolis Devils Hole Pupfish
...diabolis are of interest to many students of evolutionary biology, especially the effects of small population size and geographic isolation. The mechanisms of evolution of the Devils Hole pupfish are analogous to those of Darwin's finches, which are useful for educational and research purposes. There are no known adverse affects of Cyprinodon diabolis on humans. Because Cyprinodon diabolis is extremely geographically isolated, has...
Macropus eugenii Tammar wallaby
...These studies may have profound effects on the field of human developmental biology.These animals used to be hunted for meat and leather. Kangaroos and wallabies damage cereal crops, eat livestock food, drink stock water and destroy fences. The magnitude of their role as agricultural pests was well documented in the early 1980's. In 1983 to 1984, the loss of sheep food due...
...At present, only limited knowledge exists about the reproductive biology of Omura's whales. The species is believed to attain sexual maturity at approximately 9.0 meters in length in males and females; this is in contrast to the related Balaenoptera brydei, which attains sexual maturity at approximately 11.2 meters in males and 11.7 meters in females. One female specimen, aged approximately...
Microtus californicus California vole
...This allows the species to rapidly colonize when population densities are low, but to limit reproduction somewhat when populations are very dense.Microtus species in general, appear to have a fairly plastic reproductive biology where the emphasis seems to be on the ability to produce the correct response (phenotypic) given the ecological conditions in which the population finds itself. Populations experience cyclic and annual...
Alcedinidae kingfishers; kingfishers and relatives
...While it appears that many species of kingfishers are relatively adaptable to changes in habitat, the biology of most species is not well known, making conservation planning or prediction of impacts to habitat difficult.The IUCN lists 1 kingfisher species as “Endangered”, 11 as “Vulnerable”, 12 as “Near-threatened”, and 3 as “Data deficient”. No kingfisher species are listed under any CITES Appendices. In...
Balaenoptera bonaerensis Antarctic minke whale
...The International Union for the Conservation of Nature and Natural Resources (IUCN) currently lists the species as “Data Deficient”. However, it has been suggested that the species has declined by about 60% between the periods 1978–91 and 1991–2004. If the decline is shown to be an artifact or to have been transient, the species would then be classified as “Least Concern” whereas...
Chilonatalus micropus Cuban lesser funnel-eared bat
...Cuban lesser funnel-eared bats may prove an enlightening mammalian research subject, particularly in the field of evolutionary biology due to its limited distribution and small size relative to other mammals. On Hispaniola, farmers collect bat feces from caves to use in manure based fertilizer, called guano. Some of the islands where C. micropus is found are popular tourism destinations, and recreational activities do...
Mephitidae skunks and stink badgers
...Little is known about the breeding biology of stink badgers.Skunks are seasonal breeders; typically, the breeding season lasts two to three months, but the time of the breeding season varies among species, and within species according to geographic location. Skunks' gestation period varies among species. In Mephitis and Conepatus, gestation lasts 2 to 3 months. Spilogale gracilis undergoes delayed implantation, in which the...
Alpheus heterochaelis bigclaw snapping shrimp
...Other similar video studies have been done by Discovery Channel and National Geographic, and have been beneficial to physics and biology researchers, professors, and students. The acquisition and sharing of the information captured in these videos have greatly improved the knowledge of this alpheid's ability. Areas where bigclaw snapping shrimp occur at high densities are sometimes associated with interference with ships' sonar capabilities...
Falco femoralis Aplomado falcon
...On the list of Conservation of Tropical Raptors, this species is listed as “Not Threatened.” They are also protected by the Migratory Bird Treaty Act. This act is enforced by the U.S. Fish and Wildlife Service to regulate possession, taking (killing), transportation, sale, and export-import of protected birds. The US Endangered Species List has had the subspecies of the northern aplomado falcon...
...These remains are known as "aphid mummies." Due to the complex and interesting lifecycle and obscure phylogeny of aphids, scientists have used them to learn more about the biology of insects and plants, effective ways to manage crop pests, and methods to resolve phylogenetic relationships. Additionally, aphids are an important part of the food chain, as they are prey to many species. By attracting...
Gadus morhua Cod; Fall cure; Gaspé cure; Kil'din cod; Labrador cure
...The biology of the drumming muscles in males, as well as the circling behavior of numerous males around prospective females supports the female selection hypothesis. It is worth noting that dominance hierarchies can also be established. Males with greater body sizes and those who were successful in spawning sometimes appear to dominate the population and act aggressively towards “lesser” males. Recent research suggests that...
Ovibos moschatus muskox
...Research is also performed at the Large Animal Research Station at the University of Alaska Fairbanks on nutrition and arctic adaptations which can be applied to wildlife conservation, biology, and many other aspects. LARS has a captive herd of approximately 40 muskoxen. In some areas, including Alaska, current laws allow hunting if the hunter is selected through a periodic lottery system, though laws vary...
Apodidae swifts
...Because water is an integral aspect of the breeding biology of many species, swifts are usually found near water.The roosting and breeding site requirements of swifts (traditionally caves or hollow trees, more recently including man-made structures) sometimes necessitate travel of varying distances between roosting and feeding sites. Swifts are small birds (9-25 cm) usually with black or brown plumage. Some species...
Tapinoma sessile odorous house ant
...They are often studied together, although one is native and one is invasive, they have similar biology, morphology, behavior, and colony makeup. Both species also colonize areas disturbed by human activity, and are household pests. They also tend many of the same aphid species. Argentine ants tend to out-compete odorous house ants for most resources, especially food sources. These species are very aggressive...
Mellivora capensis honey badger
...The reproductive biology of the species has not been well studied across its geographic range, but data collected in the southern Kalahari does not suggest that delayed implantation occurs in that population. Only female honey badgers are involved in the care of offspring, which are born blind and hairless. For the first 3 months, honey badger cubs remain in the den, with the mother...
...They are naturally curious and charismatic, and may serve as education ambassadors, both for prairie conservation, and as an introduction to spiders (ecosystem roles, biology and physiology, for example). This species is acknowledged to, not only pivot to face humans, but even continue forward to meet them. This behavior, coupled with their characteristic jumping behavior, and highly communicative nature make them ideal spider ambassadors...
Sciuridae squirrels
...A research project at the Institute of Arctic Biology at the University of Alaska, Fairbanks has been studying hibernation in arctic ground squirrels to learn more about strokes, heart attacks, and neurodegenerative diseases in humans caused by reduced blood flow. Groundhogs suffer from a virus very similar to Hepatitis B in humans and exhibit similar disease progression such as cancer of the liver and...
Cercocebus atys sooty mangabey
...Attempts to conserve this species may hurt industrialization in the region, since the habitat of this species is composed of trees useful for timber and firewood (Galat and Galat-luong 2006; Oates, Gippoliti, and Groves 2011). Eastern sooty mangabeys, which are often infected with SIV-2, may have initially been the vectors for SIV-2 to evolve into HIV-2 in humans (Santiago et...
Cichlidae Cichlids
...Introduced species, such as Nile perch, have proven disastrous for many endemic cichlids, even causing the extinction of some species (See Ecosystem Roles and Conservation Status). Humans have also exploited cichlids throughout their range for centuries. In the Great Lakes of Africa, the number of cichlid species is so large they fill virtually every ecological role within their trophic level, with the exception of...
...The behavior, biology, ecology, and social organization of polygyne colonies differs considerably from monogyne colonies. These colonies are less aggressive, non-territorial, and highly cooperative. The new minims that are produced by multiple queens, despite being pheromonally and genetically distinct from their ‘step-sisters’, do not show aggression or defensiveness during the early founding of the colony. The new minims will also care for...