There is an abundant but unconnected literature on the association between chironomids’ distribution and aquatic environmental conditions (e.g., oxygen levels, water temperature, etc.). Chironomids-based paleoecological studies can be especially useful for estimating the environmental conditions that existed before human records were kept. This literature review offers a discussion and synthesis of the literature examining chironomids’ distribution. An understanding of this literature is important and timely. With global warming occurring and the climate changing, it is important to be able to predict the changes that will occur and the effect that they will have. To forecast the change in temperature that will occur it is useful to understand …show more content…
All these dimensions of chironomids’ habitat affected their population at the different lakes each study tended to look at. As well as different amounts of chironomids being found in each lake, different species would be found as well (Brooks & Birks, 2000). By understanding which chironomids were in which lakes, scientists can then understand the environmental factors at the time that permitted the species to live abundantly or sparsely. The research sites all tended to be in high latitudes. High latitudes were chosen as the temperature is cold enough to affect the range in which the different species of chironomids could live. Most of the research on the distribution of chironomids has taken place in the northern United States and northern Europe (Olander et al., 1997; Lotter el al, 1999; Brooks & Birks, 2000; Porinchu & Cwynar, 2000; Larocque et al., 2001), with only a small minority of studies being conducted in Canada (Gajweski et al., 2005; Walker, 1990; Wilson & Gajweski, …show more content…
In general the species of chironomids tended to be broken up into relative warm lakes, temperate lakes that do not extend beyond the arctic tree line, diluted lakes, and high saline lakes. Each study showed slightly different species being found in each category due to the surrounding features of the lake. Overall the same species were being found in each range as the climate was relatively similar. Some of the research conducted an intercontinental comparison between the distribution of chironomids in North America and Europe (Lotter el al, 1999). The results were not as constant as a singular study as the species found in different climates varied more than in one
In "Evidence C" and "Evidence D" it is unreasonable to say that claim two is more legitimate than claim one. One of the population's decreased and the other stayed the same. While in "Evidence C" the population of the leatherback sea turtle decreases, agreeing with claim 2, the samples are not as reliable as the others. It is not as reasonable because there are only three samples of the population. Also, in "Evidence D" there is only one sample for the population, and it is located at the Glacier Sea research center. Therefore, it is not a reliable use of
I truly admire Martin Luther King Jr. not only as a person who fought for human rights but as a creator of the best and the most powerful letters I have ever read in my life. The fact Dr. King wrote it sitting in roach-infested, Birmingham jail gives him a huge appreciation. He annihilated racial segregation and created a powerful message which we excite and quote nowadays.
The Chelonia mydas can grow up to a maximum length of 4 feet and weigh up to 440 pounds (ecos.fws.gov, 2016). The green turtle can be found in Mesoamerican Reef, Coastal East Africa, Coral Triangle, the Galapagos, and the Gulf of California (worldwildlifefund.org, 2016). These areas are resting and nesting areas that are primarily located in shallow water, lagoons, and bays with nearby seagrass (ecos.fws.gov, 2016). In the last decade the habitats of the Chelonia mydas have been negatively effect in regards of the primary food source having been heavily reduced by climate change. A study conducted from 2000 to 2013 observed the before and effects of an extreme heat wave on an ecosystem on the West coast of Australia (Thomson et al., 2015). The study reported a 90% dieback of seagrass also resulting in habitat degradation and the steady decline of Chelonia mydas health with only 6 percent fell in the highest health category (Thomson et al.
Additionally, I. longirostris was genetically different among and across rivers. This first insights about the population genetic structure of I. longirostris is crucial for monitoring the genetic diversity, management and conservation of its populations and complementing the genetic studies in Prochilodontidae.
One of these snails was Cepaea vindobonenis, which is very similar to Cepaea nemoralis. They measured the occurrence of snails in transects in 9 different locations. The soil moisture varied from 24% to 42% and results were similar to ours as more snails were found in moister areas (Hettenbergerová et al. 31-42). Our results were similar to the articles, as in both cases, activity increased in moister soil. However, there could be a discrepancy because the soil moisture levels used were much higher in this study than ours (13% and 27%). However, even in this case, there were more snails in the moister areas, similar to our experiment. The consistency of our results with this study strengthens our findings as the results are
Habitat can be considered as the optimal location where any one species can live, reproduce, and grow in an ecological time scale (Kellner et al. 1992). As the climatic conditions of the world are changing at a rapid pace, it is important to understand how species will adapt with the weather and learn to adjust their way of living. Understanding how a species survives in different climatic regions is very important for the future management of the species population and habitat. With this knowledge an individual could more efficiently manage their habitat to make it more suitable for the species to live under the given climatic conditions.
Biodiversity is a necessity for every ecosystem to thrive in equilibrium. However, the balance between species, predators, and prey can be disturbed by the most microscopic change. One of these catalysts are invasive species: living organisms that are non-native to an ecosystem. Alycia Stigall’s research (2010) has been fundamental to finding why speciation declined during the late Devonian biodiversity crisis. Potential causes of speciation include reproductive isolation and geographic isolation, which is also known as vicariance. Stigall studied three different species of shallow marine invertebrate organisms and determined their speciation by combining each species’ geography and phylogenetic backgrounds. Measurements of the biodiversity
Driving under the influence of alcohol is “one of Americas most often committed and deadliest crimes” (). A financial burden on society, motor vehicle crashes cost the United States an estimate of $37 billion annually (). Impaired driving continues to amplify in the United States, in addition to this, prevention laws differ from state to state. An increase in traffic accidents correlates to alcohol, moreover, “Alcohol-impairment is a factor in nearly one-third of all fatalities” (). The Governors Highway Safety Association (2016) examines the issues of impaired driving and the methods use to prevent and decrease DUIs.
This Great Lakes ecosystem is home to hundreds of thousands of plant, fish, and wildlife populations. All of these species, breed, grow, and live on the shore, or in the Great Lakes. These places have been changed because of humans. Forest have been cut down, pollution has been in our lake, water sheds paved and wetlands have been
The B. Grunniens is found all over the Himalayan region of southern Central Asia, the Tibetan Plateau, and as far as Mongolia and Russia. They prefer to live in Alpine
The Aquatic biome is the most significant out of all of the five biomes. Water is essential and important for life here on Earth. It’s what we all need in order to survive. Water also supports life, and many different species live in it, or for some parts of their life. Since water covers one-thirds of the Earth, the temperature of the aquatic biome tends to be humid and slightly cool. It is fairly constant so it can be able to tolerate life. This region is filled with so many different species of animals some big and some even small. The Aquatic biome is broken into two regions freshwater and marine
(Thorp & Covich, 2001). These snails are found in the littoral zone of freshwater bodies, often just below the surface or near algal-film covered rocks. Dillon (p. 72) explains the diet of the great pond snail as,
The climate, vegetation and fauna in Sweden are totally different from those in Asia, especially different from Hong Kong. The reason is that the latitude and the region they lay on are really distinct. These three factors are closely related, because climate will greatly affect the growing of different vegetation and animal species.
This section provides a brief description of the biology and life history of Lithobates aerolatus (see Vanessa for a thorough review). Crawfish frogs are known to be solitary and secretive animals inhabiting crayfish burrows for most of the year (Hoffman et. al., 2010; Heemayer et. al. 2012). They have a patchy distribution in the south-central United States (Conant and Collins, 1991) and are listed as state-endangered or rare species in six of 12 states in which it occurs (IUCN REDLISt).Crawfish frogs breed from March to April in ephemeral, temporary, and seasonal wetlands usually in open grasslands but occasionally in wooded
Wednesday 18 February 2015, Sacred Heart College’s Year 12 biology class took a field trip to ‘Siren’s Rock’, located between Island Bay and Owhiro Bay on Wellington’s South Coast. The pattern which was being investigated across the rocky shore was zonation. Zonation is a community pattern that occurs along an environmental gradient and is caused by the change in an environmental factor changing the distribution of species which results in species being present in zones or bands. This report will focus on the relationship between, and how this affects the zonation pattern on the shore of, the two species Cellana denticulata; commonly known as the Denticulate Limpet, and Syprachiton pelliserpentis; the Snakeskin Chiton.