Evan
@evanwahm.bsky.social
Aspiring Freshwater Ecologist | he/him/his
Pursuing an M.S. in Biology. Studying crayfish.
photography/creative work -> instagram.com/evanwahm
Pursuing an M.S. in Biology. Studying crayfish.
photography/creative work -> instagram.com/evanwahm
Reposted by Evan
The Taxonomic Distinctiveness Hypothesis (Ricciardi & Atkinson 2004) predicts that invaders with no relatives in an area will have the largest ecological impacts.
We found evidence of this for various aquatic systems. It is also supported by terrestrial studies. Eco-evolutionary context matters!
We found evidence of this for various aquatic systems. It is also supported by terrestrial studies. Eco-evolutionary context matters!
November 16, 2025 at 12:10 AM
The Taxonomic Distinctiveness Hypothesis (Ricciardi & Atkinson 2004) predicts that invaders with no relatives in an area will have the largest ecological impacts.
We found evidence of this for various aquatic systems. It is also supported by terrestrial studies. Eco-evolutionary context matters!
We found evidence of this for various aquatic systems. It is also supported by terrestrial studies. Eco-evolutionary context matters!
October 15, 2025 at 2:26 PM
Laughing Gull (Leucophaeus atricilla)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
October 12, 2025 at 2:29 PM
Laughing Gull (Leucophaeus atricilla)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
October 2, 2025 at 8:38 PM
August 24, 2025 at 3:54 PM
Purple Gallinule (Porphyrio martinica) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
August 23, 2025 at 4:43 PM
Purple Gallinule (Porphyrio martinica) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
Common Gallinule (Gallinula galeata) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
August 21, 2025 at 2:59 PM
Common Gallinule (Gallinula galeata) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
Anhinga (Anhinga anhinga) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
August 20, 2025 at 1:55 PM
Anhinga (Anhinga anhinga) at the Savannah National Wildlife Refuge
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
Florida Softshell Turtle (Apalone ferox) at the Savannah National Wildlife Refuge
#wildlife #wildlifephotography #nature #turtle 🐢🌍🧪
#wildlife #wildlifephotography #nature #turtle 🐢🌍🧪
August 19, 2025 at 2:55 PM
Florida Softshell Turtle (Apalone ferox) at the Savannah National Wildlife Refuge
#wildlife #wildlifephotography #nature #turtle 🐢🌍🧪
#wildlife #wildlifephotography #nature #turtle 🐢🌍🧪
Reposted by Evan
At #EOU2025 @eounion.bsky.social conference next week, we'll show new evidence implicating forestry in declines of British Marsh Tits during the era of woodland conversion in 1950/60s-1980s.
This was period of steepest decline in Marsh Tits. Why? What was going on back then? #ornithology 1/5
This was period of steepest decline in Marsh Tits. Why? What was going on back then? #ornithology 1/5
August 16, 2025 at 10:42 AM
At #EOU2025 @eounion.bsky.social conference next week, we'll show new evidence implicating forestry in declines of British Marsh Tits during the era of woodland conversion in 1950/60s-1980s.
This was period of steepest decline in Marsh Tits. Why? What was going on back then? #ornithology 1/5
This was period of steepest decline in Marsh Tits. Why? What was going on back then? #ornithology 1/5
Mischievous Bird Grasshopper (Schistocerca damnifica)
#wildlife #wildlifephotography #nature #Invert 🌍🧪
#wildlife #wildlifephotography #nature #Invert 🌍🧪
August 16, 2025 at 11:54 PM
Mischievous Bird Grasshopper (Schistocerca damnifica)
#wildlife #wildlifephotography #nature #Invert 🌍🧪
#wildlife #wildlifephotography #nature #Invert 🌍🧪
Reposted by Evan
Good morning everyone!
Here's a happy little butterfly #scape for #FlowersOnFriday 🦋🌞
Hope you have a great weekend ahead 😎
#eastcoastkin #photography #butterflies #bloomscrolling
Here's a happy little butterfly #scape for #FlowersOnFriday 🦋🌞
Hope you have a great weekend ahead 😎
#eastcoastkin #photography #butterflies #bloomscrolling
August 15, 2025 at 1:04 PM
Good morning everyone!
Here's a happy little butterfly #scape for #FlowersOnFriday 🦋🌞
Hope you have a great weekend ahead 😎
#eastcoastkin #photography #butterflies #bloomscrolling
Here's a happy little butterfly #scape for #FlowersOnFriday 🦋🌞
Hope you have a great weekend ahead 😎
#eastcoastkin #photography #butterflies #bloomscrolling
Reposted by Evan
August 14, 2025 at 2:09 PM
Reposted by Evan
Trying to capture the beautiful light on the canal tonight
August 9, 2025 at 8:29 PM
Trying to capture the beautiful light on the canal tonight
Reposted by Evan
Blessed to find this beautiful electric blue Faxonius virilis while sampling the St. Lawrence for my doctoral work! This is a fairly rare phenotype for this native North American species!
July 29, 2025 at 12:17 AM
Blessed to find this beautiful electric blue Faxonius virilis while sampling the St. Lawrence for my doctoral work! This is a fairly rare phenotype for this native North American species!
Reposted by Evan
1/ A 🧵 on some recent research by our lab on invasive crayfish:
Sheppard et al (2024) found that projected climate warming in the Great Lakes will reduce the maximum feeding rate & increase the frequency & duration of gravid states of marbled crayfish.
Read: redpath-staff.mcgill.ca/ricciardi/Sh...
Sheppard et al (2024) found that projected climate warming in the Great Lakes will reduce the maximum feeding rate & increase the frequency & duration of gravid states of marbled crayfish.
Read: redpath-staff.mcgill.ca/ricciardi/Sh...
July 9, 2025 at 3:26 AM
1/ A 🧵 on some recent research by our lab on invasive crayfish:
Sheppard et al (2024) found that projected climate warming in the Great Lakes will reduce the maximum feeding rate & increase the frequency & duration of gravid states of marbled crayfish.
Read: redpath-staff.mcgill.ca/ricciardi/Sh...
Sheppard et al (2024) found that projected climate warming in the Great Lakes will reduce the maximum feeding rate & increase the frequency & duration of gravid states of marbled crayfish.
Read: redpath-staff.mcgill.ca/ricciardi/Sh...
Reposted by Evan
Canada Goose (Branta canadensis)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
July 15, 2025 at 10:13 PM
Canada Goose (Branta canadensis)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
Reposted by Evan
A Small Skipper on a Small Scabious on the local Downs this morning.
July 13, 2025 at 3:00 PM
A Small Skipper on a Small Scabious on the local Downs this morning.
Female Mallard (Anas platyrhynchos)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
July 5, 2025 at 12:42 PM
Female Mallard (Anas platyrhynchos)
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
July 3, 2025 at 2:09 PM
Reposted by Evan
The White Ibises, preening just after sunrise. 📷🪶
July 3, 2025 at 12:02 AM
The White Ibises, preening just after sunrise. 📷🪶
Male Mallard (Anas platyrhynchos) taking a bath
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
June 30, 2025 at 4:00 PM
Male Mallard (Anas platyrhynchos) taking a bath
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
#birds #birding #birdphotography #wildlife #wildlifephotography #nature 🪶🌍🧪
Reposted by Evan
A red-eared slider turtle basks in the sun on a log at Izaak Walton Nature Area in Longmont, Colorado.
#turtle #turtles #red-slider #red-sliders #photography #photograph #photographs #photo #photos #nature #wildlife #wetland #wetlands
#turtle #turtles #red-slider #red-sliders #photography #photograph #photographs #photo #photos #nature #wildlife #wetland #wetlands
June 29, 2025 at 2:25 PM
A red-eared slider turtle basks in the sun on a log at Izaak Walton Nature Area in Longmont, Colorado.
#turtle #turtles #red-slider #red-sliders #photography #photograph #photographs #photo #photos #nature #wildlife #wetland #wetlands
#turtle #turtles #red-slider #red-sliders #photography #photograph #photographs #photo #photos #nature #wildlife #wetland #wetlands