Graph and download economic data for Resident Population in Nassau County, NY (NYNASS9POP) from 1970 to 2024 about Nassau County, NY; New York; NY; residents; population; and USA.

Graph and download economic data for Resident Population in Suffolk County, NY (NYSUFF0POP) from 1970 to 2024 about Suffolk County, NY; New York; NY; residents; population; and USA.

A dataset listing New York counties by population for 2024.

This layer visualizes the geographic distribution of the predominant higher education achievements of the population of Long Island, NY. The applicable population data from the US Census was used to enrich the available geographic features. The colors of the features reflect the predominant level of education and the transparency is based on the relative predominance.

A dataset listing New York cities by population for 2024.

Understanding population structure and areas of demographic persistence and transients is critical for effective species management. However, direct observational evidence to address the geographic scale and delineation of ephemeral or persistent populations for many marine fishes is limited. The Lined seahorse (Hippocampus erectus) can be commonly found in three western Atlantic zoogeographic provinces, though inhabitants of the temperate northern Virginia Province are often considered tropical vagrants that only arrive during warm seasons from the southern provinces and perish as temperatures decline. Although genetics can locate regions of historical population persistence and isolation, previous evidence of Virginia Province persistence is only provisional due to limited genetic sampling (i.e., mitochondrial DNA and five nuclear loci). To test alternative hypotheses of historical persistence versus the ephemerality of a northern Virginia Province population we used a RADseq generated dataset consisting of 11,708 single nucleotide polymorphisms (SNP) sampled from individuals collected from the eastern Gulf of Mexico to Long Island, NY. Concordant results from genomic analyses all infer three genetically divergent subpopulations, and strongly support Virginia Province inhabitants as a genetically diverged and a historically persistent ancestral gene pool. These results suggest that individuals that emerge in coastal areas during the warm season can be considered “local” and supports offshore migration during the colder months. This research demonstrates how a large number of genes sampled across a geographical range can capture the diversity of coalescent histories (across loci) while inferring population history. Moreover, these results clearly demonstrate the utility of population genomic data to infer peripheral subpopulation persistence in difficult-to-observe species.

This report outlines the results of continued monitoring and recovery efforts of the endangered Sandplain Gerardia and 2003 was an incredibly successful year. Numbers of the plant on Long Island increased to 84,500 - 11 times higher than the previous record of 14,200 in 2001. Most of this increase was due to a 16-fold increase in seeded plots rather than to the average 2.8-fold increase in the original, native populations. Another factor in this huge increase in 2003 was probably due to unusually high rainfall.

Numbers of Sandplain Gerardia on Long Island increased to approximately 14,000 plants in 2001. In the five year period 1997-2001 numbers of plants have increased more than seven-fold. This success is due to several ongoing actions: management to maintain native grassland habitat suitable for Sandplain Gerardia, fencing to prevent browse damage due to rabbits, and moving seeds to new unoccupied locations at both existing and new population sites.

Urbanization can have profound consequences for mammalian biodiversity and is thought to contribute to patterns of species richness and community composition. Large cities can be particularly challenging environments for mammals because these habitats are often impacted by anthropogenic perturbations, including high human population density, fragmented habitats, and extensive human development. In this study, we investigated mammalian species richness, Shannon–Wiener diversity, and evenness in the most densely populated region in the United States: the New York metropolitan area. Specifically, we deployed camera traps from 2015 to 2019 to investigate six drivers of mammalian diversity across 31 greenspaces: (1) human population density, (2) patch size, (3) habitat type, (4) surrounding land cover, (5) geographical barriers to dispersal, and (6) habitat heterogeneity. We found that mammal community composition is largely influenced by a multitude of anthropogenic factors. Specifically, mammal species richness was higher in greenspaces with larger patch sizes and lower in greenspaces surrounded by more development. Moreover, Shannon–Wiener diversity and evenness were higher in urban natural landscapes than human-altered landscapes. In a subset of data that only included carnivores, we found that carnivore Shannon–Wiener diversity was higher in urban natural habitats and in sites with lower human population densities. Finally, we found that geographical barriers to dispersal contributed to both patterns of mammalian diversity and patterns of carnivore diversity: mammal taxa richness, Shannon–Wiener diversity, and evenness were all significantly higher on the continent (Bronx/Westchester) than on Long Island. These results suggest that preserving urban greenspaces is important for maintaining both mammalian and carnivore biodiversity and that management of mammals in cities should concentrate on maintaining large, connected, natural greenspaces.

Raw qPCR data evaluating gene silencing in southern pine beekle, Dendroctonus frontalis, collected from two gepgrahically distinct locations: Long Island, NY and Cañadas de Nanchititla, State of Mexico.

A dataset listing the richest zip codes in New York per the most current US Census data, including information on rank and average income.