How Insects Attract a Mate

How Insects Attract a Mate If youve spent any time watching insects, youve probably stumbled on a pair of lady beetles or flies joined together in the throes of love. When youre a lone bug in a big world, finding a partner of the same species and the opposite sex is not always that simple. So how do insects find a mate? Love at First Sight- Visual Signals Some insects begin their search for a sexual partner by looking for or giving visual cues or signals. Butterflies, flies, odonates, and luminous beetles use visual signals most often. In some butterfly species, males spend much of the afternoon patrolling for receptive females. Anything that looks like a female may be inspected, especially if the object is a desired color and floats like a butterfly, to borrow a phrase from Muhammed Ali. Many species of flies perch in a place that provides a clear view of the area. The fly sits, watching for any flying object that might be a female. If one appears, he quickly takes flight and makes contact. If his quarry is indeed a female of his own species, he escorts her to an appropriate place for mating- perhaps a leaf or a twig nearby. Fireflies may be the most famous insects that flirt using visual signals. Here, the female sends the signal to lure a male. She flashes her light in a specific code that tells passing males her species, her sex, and that she is interested in mating. A male will reply with his own signal. Both male and female continue to flash their lights until they have found each other. Serenades of Love- Auditory Signals If youve heard the chirp of a cricket or the song of a cicada, youve listened to insects calling for a mate. Most insects that make sounds do so for the purpose of mating, and males tend to be the crooners in species that use auditory signals. Insects that sing for a partner include Orthopterans, Hemipterans, and Coleopterans. The best-known singing insects must be the male periodical cicadas. Hundreds or even thousands of male cicadas congregate in an area after emerging and produce an ear-splitting chorus of song. The cicada chorus usually includes three different species, singing together. Remarkably, the females respond to the song and are able to find mates of the same species from within the chaotic choir. Male crickets rub their forewings together to produce a raspy and loud song. Once he lures a female close to him, his song changes to a softer courtship call. Mole crickets, which are ground dwellers, actually construct special entrance tunnels shaped like megaphones, from which they amplify their calls. Some insects simply tap on a hard surface to produce their love calls. The death-watch beetle, for example, bangs his noggin against the roof of his tunnel to attract a mate. These beetles feed on old wood, and the sound of his head tapping resonates through the wood. Love Is in the Air- Chemical Cues French naturalist Jean-Henri Fabre discovered the power of the insect sex pheromones quite by accident in the 1870s. Male peacock moths came flitting in the open windows of his laboratory, landing on the mesh cage of a female. He tried to fool the males by moving her cage to different locations, but the males always found their way back to her. As you might suspect from their plumose antennae, male moths search for suitable female mates by sensing sex pheromones in the air. The female cecropia moth emits a scent so powerful it attracts males from miles around. A male bumble bee uses pheromones to lure a female to a perch, where he can mate with her. The male flies along, marking plants with his perfume. Once he sets his traps, he patrols his territory waiting for a female to land on one of his perches. Unmated Japanese beetle females release a strong sex attractant, which quickly draws the attention of many males. Sometimes, so many male suitors appear at one time that they form a crowded cluster referred to as a beetle ball.

Locating Historical U.S. Deeds Online

Locating Historical U.S. Deeds Online The Bureau of Land Managements General Land Office records are a great online resource for U.S. genealogists researching homestead records, bounty land grants, and other records for ancestors who purchased or received land in the thirty federal or public land states. In the eastern United States, many state archives have made available at least a portion of original grants and patents online. These online land records are all wonderful resources, however they generally only provide information on first owners or purchasers of the land. The bulk of American land records are found in the form of deeds, or private land/property transfers between individuals and corporations (non-governments). The vast majority of deeds in the United States are recorded and maintained by the county, parish (Louisiana), or district (Alaska). In the New England states of Connecticut, Rhode Island, and Vermont, deeds are recorded at the town level. Due primarily to increased interest by title searchers for online access, as well as to help cut access/personnel costs in the future, many U.S. counties, especially in the eastern part of the country, have started putting their historical deed records online. The best place to begin your search for online historical deed records is the website of the Register of Deeds, or Clerk of Court, or whoever is in charge of recording deeds and other real estate records for your county/locality of interest. Salem, Massachusetts historic deed books 1-20 (1641-1709), for example, are available online from the Essex County Registry of Deeds. Thirty Pennsylvania counties have deeds available online (several going back to the time of county formation) through a system called Landex (fee for access). There are also other online sources for historical deed records, such as state archives and local historical societies. The Maryland State Archives is especially notable for its cooperative project to provide access to deeds and other land record instruments from across the state. Check out MDLandRec.net with searchable indexes and viewable volumes from Maryland counties dating back to the 1600s. The Georgia Virtual Vault, hosted by the Georgia State Archives, includes Chatham County, Georgia Deed Books 1785-1806. How to Find Historical Deeds Online Locate and browse the website of the local office in charge of recording property deeds. This might be the Register of Deeds, Recorder, Auditor, or County Clerk, depending on the particular locality. You can often locate these offices through a Google search ([county name] state deeds, or by going directly to the county government site and then drilling down to the appropriate department. If the county uses a third-party service to provide online access to historical deeds, they will generally include access information on the home page of the Register of Deeds. Explore FamilySearch. Search the user-supported FamilySearch Research Wiki for your locality of interest, preferably the government level at which deeds are recorded, to learn what deeds might be available and whether they may be available either online or on microfilm from FamilySearch. The FamilySearch Research Wiki often includes links to external resources with online records as well, and may include details on any poten tial loss of deed records due to fire, flood, etc. If FamilySearch has deed or other land records for your locality online, you can find this by browsing FamilySearch Historical Records. The Family History Library Catalog (browse this by location as well) includes information on any microfilmed deed records, and may link to the record set online at FamilySearch, if it has also been digitized. Investigate the holdings of state archives, local historical society and other historical repositories. In some areas, the state archives or other historical records repository hold either the originals or copies of older deed records, and some have placed these online. U.S. State Archives Online includes links to each U.S. State Archives website, along with information on digitized online records. Or try a Google search such as locality name historical deeds. Look for state-level finding aids. A Google search such as digital deeds [state name] or historical deeds [state name] may turn up helpful finding aids such as this collection on North Carolina Digital Records, which brings together information and links for each North Carolina county deeds office, including dates and coverage for available online digital deed records. Tips for Researching Historical Deeds Online Once you locate a deeds collection of interest, explore it thoroughly to be sure the actual records available match the stated description. County record offices are putting digitized deeds online so fast that the available online documents sometimes exceed the text description. For example, the online Document Retrieval System for Martin County, North Carolina, states that it includes Old Deed Books U (08/26/1866) thru XXXXX, however, if you manually enter the book and page numbers from the older books in the search box, you will find that the digitized deed books available online actually go back to 1774, the date of county formation. Understand what you are looking at before you give up. Researchers new to Allegheny County, Pennsylvania, research might move on after entering their ancestors name in the search box for Historical Deeds 1792–1857 and receiving no results. What they might not realize, however, is that this database, despite its misleading name, is a collection of documents recorded in deed books that described people who were involved in the slave trade in the early days of Allegheny County, and does not include all deeds recorded between 1792 and 1857. Take advantage of current property records, tax maps and plat maps. Edgecombe County, North Carolina, has their historical deed indexes online, but the actual deed books are available online only back to September 1973. However, in some cases the deeds of current property owners include information on previous owners going back several generations, including deed book and page references. This type of online research can be especially helpful when platting historical deeds or conducting other types of historical neighborhood reconstruction. The Edgecombe County GIS Maps database, for example, lets you select parcel locations on a map and view information on the neighbors, along with digital copies of the most recent deed record for that parcel.