City Nature Challenge 2021: New York City's Journal

July 26, 2021

CNC:NYC 2021 RESULTS (version 2)

NOTE: I have recreated this post as close to what it was on the day results were announced (May 10, 2021), but since I was rewriting, I figured I might as well add some updated totals. Those are in italics. If you happen to have made a copy of that original post, I'd love to see it so I can figure out if I missed anything. Email it to THANKS!

The City Nature Challenge 2021 results are in and they are very exciting!

Global City Nature Challenge Results

Globally, over 50K (54K) observers in 419 cities made 1.2 million observations! It’s the first time a CNC has broken the 1 million mark AND it’s the first time iNaturalist as a whole has had over 1 million observations in a week. Click here to see an infographic of the global results.

New York's own Daniel Atha (@danielatha) was the top observer for the whole challenge! Check out his journal post, My Personal Experience of the City Nature Challenge.

New York City CNC Results

In NYC, we had the most observers EVER for CNC with 850 (883) people making over 19K observations. We found 1589 species in NYC and we thank 650 identifiers for their help in improving this list.

On the morning results were announced, (9am May 10, 2021), these were the NYC leaderboards:

Congrats to @danielatha, @srall, @cmurphy95, @klodonnell, @irag, @glyptostrob0ides, @nycnatureobserver, @matthew_wills, @elharo, and @aberkov for making the leaderboards!

Emily Dickinson at the Madison Square Park Conservancy organized the NYC Park by Park Competition, which had 19 of the city's parks and greenspaces competing. Bronx Park won for most observations (4459) and species (348) and Green-Wood Cemetery won for most observers (59).

We also brought back our Battle of the Boroughs! And in a first for a CNC, Manhattan didn't sweep all three categories! The most observations were made in the Bronx, the most species were found in Brooklyn, and the most people making observations were in Manhattan. Click the Battle of the Boroughs project link above to get to the individual borough projects. Here are the rankings as the stood on the morning of May 10, 2021:

Here are our top observers and species finders in each borough:
Brooklyn: @elharo (obs) and @matthew_wills (spp)
Bronx: @danielatha
Queens: @klodonnell
Staten Island: @srall
Manhattan: @aberkov

Fun Finds

This section might be missing a few entries from the original version. If you have exciting finds that I missed, please remind me of them in the comments!

@desmodium_nyc found Birdfoot Violet (Viola pedata), a New York State endangered plant. LINK.

@morgan2km found an Eastern Red Bat (Lasiurus borealis) snoozing in Prospect Park. LINK.

@mayacrow found a Brotherly Ground Crab Spider, Xysticus fraternus, one of only 15 observations of this species in iNaturalist and a first for New York state. Thanks to @elharo for looking that up. LINK.

@jholmes found an Ilia Underwing caterpillar (Catocala ilia) hangin out right in the middle of Broadway. LINK.

A couple folks documented some exciting species interactions: @mayacrow documented a Great Blue Heron catching a Brown Bullhead on Staten Island and @kevparsonsproject documented a Great Egret catching an eel of some sort in Jamaica Bay.


We absolutely could not run a successful CNC:NYC without all of our partners: Madison Square Park Conservancy, Hudson River Parks Trust River Project, NYC Parks, NYBG, Greenbelt Conservancy, Genspace, Freshkills Park Alliance, Green-Wood Cemetery, WSP EcoProjects, Bronx River Alliance, LES Ecology Center, Randall's Island Park Alliance, Brooklyn Bridge Park Conservancy, Brooklyn Greenway Initiative, Alliance for Flushing Meadows Corona Park, Battery Park City Authority, Manhattan Land Trust, March for Science NYC, Latino Outdoors, and Brooklyn CNC captain, @xris. Thanks for coming to planning meetings, spreading the word about CNC, making your own observations and identifications, and many thanks especially to those of you who hosted or organized CNC related events this year. It was hard to organize events this year because of ongoing pandemic restrictions and we really appreciate your efforts!

We also had some great Macaulay Honors College student volunteers who helped moderate and participate in our virtual events. Thanks to @anamariaoliynyk, @ziska_andrew, and especially @danielthomas, who has volunteered for CNC for four years in a row!

The dates of the 2022 challenge have been set! Mark your calendars for April 29, 2022 - May 2, 2022. Join this project for updates in the late summer/early fall: City Nature Challenge: New York City 2022.

Posted on July 26, 2021 23:16 by klodonnell klodonnell | 1 comment | Leave a comment

July 19, 2021

CNC: NYC 2021 Daily Highlights Summary

In the original project journal, there was a post each day of the CNC with some highlights. This post will summarize those posts. Observation numbers are pulled from observations added on these days of the challenge, but the species number reflects the current identifications.

Day 1 - April 30, 2021 - Off to a great start, especially in the Bronx!

On the first day of CNC, 222 observers made 3987 observations of 648 species. The largest portion of these (1776) were made in the Bronx, more than double the number of any other NYC borough on the first day. The first observations of the day were made by danielatha just after midnight.

Day 2 - May 1 , 2021 - Another great day!

Day 2 brought our observation total to 8742 with 1029 species and 475 observers. We had unusually gorgeous weather for an NYC CNC this day. Lots of sunshine, no winter hats needed.

Day 3 - May 2, 2021 - So many observers!

By the end of Day 3, we had 13103 observations of 1301 species. We also had 698 observers, surpassing our total number of observers for any of the previous NYC CNCs.

Day 4 - May 3, 2021 - A strong finish! Get those observations loaded!

At 11:59pm on May 3, we had 17010 observations of 1513 species posted by 798 observers. Over the course of the next week, more observations and observers were added until the cutoff at 9am on May 10. Of course, observations/species/observers continue to change as people add photos taken on those dates and identifiers come in and add IDs.

Posted on July 19, 2021 19:48 by klodonnell klodonnell | 0 comments | Leave a comment

CNC: NYC Events List

A list of the events we had for CNC:NYC 2021.

Monday, April 19 - 12p-7p Earth Day 2021 Virtual Festival - Come visit our booth to learn about CNC any time during this virtual fair. Register here.

Thursday, April 22 - 6:30p - City Nature Challenge Genspace Orientation - An iNaturalist training hosted by community lab, Genspace, to get you ready for CNC. Register here.

Tuesday, April 27 - 6:30p - Making Good Plant Observations Webinar - Looking to get better/faster IDs on iNat? Come to this webinar to get some tips. Register here.

Wednesday, April 28 - 5p - Cit/Community Science Happy Hour - Part of a monthly series of virtual events, April's CCS Happy Hour will focus on making iNaturalist IDs. Grab a snack and a beverage and let's do some science together! Register here.

Friday, April 30 - 12:30p - Day 1 Virtual Kickoff - Whether you've already started observing or you're getting ready to get out, stop by and say hi. We'll be doing a very quick (5 min) intro to CNC and then answering questions and chatting about what we're excited to see! Register here.

Friday, April 30 - 3p-6p - Hudson River Park CNC BioBlitz - An in-person, socially distanced, BioBlitz for all!

Saturday, May 1 - 9a - Day 2 Virtual Kickoff - Same deal as the day before! Stop by for a chat or getting your questions answered or to share cool things you found already! There is an individual registration for each of these. Register for Day 2 Kickoff here.

Sunday, May 2 - 10a - Day 3 Virtual Kickoff - Same deal as the day before! Stop by for a chat or getting your questions answered or to share cool things you found already! There is an individual registration for each of these. Register for Day 3 Kickoff here.

Monday, May 3 - 12p - Day 4 Virtual (Midday) Kickoff - Same deal as the day before! Stop by for a chat or getting your questions answered or to share cool things you found already! There is an individual registration for each of these. Register for Day 4 Kickoff here.

Wednesday, May 5 - 5p-7p - CNC:NYC Virtual ID Party - No experience necessary! Join us to help increase our species numbers. We'll do a quick overview of how to make IDs and then ID together while on zoom. Register via Eventbrite here.

Posted on July 19, 2021 16:41 by klodonnell klodonnell | 0 comments | Leave a comment

Land Acknowledgement for City Nature Challenge: NYC

The City Nature Challenge: New York City takes place in Lenapehoking, the ancestral, unceded lands of the Lenape people. Lenapehoking includes parts of what are now known as New York, New Jersey, Connecticut, Pennsylvania, and Delaware. We want to acknowledge and pay respect to Lenape elders, past and present. This land has great significance to the Lenape people who were forced to leave it by European colonists, and we must recognize this fact as we explore the nature of what is now called New York City. The Lenape were the original stewards of this land and its many different habitats. There are only a few spaces left that resemble what this area was like before colonization and we encourage you to be respectful in these spaces and all places in the city. We ask that you be thoughtful when you are out on this land and realize that settler colonialism has deeply changed this landscape from what it once was. We hope that your nature observations in Lenapehoking inspire you to seek out more information about the Lenape people and culture. Here are some places to start:

The Lenape Center

"Home in Lenapehoking" - An interview of Joe Baker and Hadrien Coumans, co-founders of The Lenape Center, in Urban Omnibus.

Posted on July 19, 2021 16:16 by klodonnell klodonnell | 0 comments | Leave a comment

July 12, 2021

CNC:NYC project page version 2

Welcome to the second version of our project page. We lost the original page due to administrator error - sorry! Luckily, iNaturalist collection projects are easy to recreate. However, we have lost our member list and the journal posts. We're going to work on getting the results post back. Stay tuned.

In the meantime, we also have the CNC: NYC 2022 page ready to go:

Posted on July 12, 2021 19:18 by klodonnell klodonnell | 0 comments | Leave a comment